HydroTech Yammi Vs Simon 300X in BWB Mag.

[Instigator]

Great shoot out article of two bad ass motors.

Have read about the Yammi and the hype appears to be "consevrative" if anything :eek:

It THUMPED the Merc and by almost 5 MPH's on top :eek::eek::eek:
Maybe the 1st time ever I've seen an article in that mag that listed an un-black motor as the winner.
They did say that "they were sure there was something wrong with the Merc although Eric could'nt find it over the phone" :p
I like Eric and his work and have not heard one bad thing but I'm thinkin this thing just backed the Merc in the corner and soundly kicked it's ass.
BWB repeated the coment about something being wrong svereral times but interestingly both motors used almost the same amount of fuel (@ WFO) which is their yard stick for measuring HP's.

Anyhow, congrats to the Worthy folks they seem to have really done thier homework on this thing!

[whatsamerc??]

hush your mouth, you know a yammi aint supposed to whoop a merc;)......benji

[jphii]

It didn't. "Something" was wrong with the Merc:rolleyes:

[MODVP22]

...and I don't get that magazine anymore :mad:

[Instigator]

It didn't. "Something" was wrong with the Merc:rolleyes:

shoot out where the Merc was 3 MPH's slower than the E-Tec until sneaked home to a Magazine employee's house (motors were reported as "in compound" over night) over night and returned the next day 3 MPH's faster :icon_bs:

[specboatops]

If your not cheatin, your not tryin:eek::D

[screwedbayou]

nice to hear that..... i have a 300 yammi on my lib. plenty of power. its a fun rig and best of all.......its dependable..she already towed in two mercs lol have a good one

[NNT]

The Merc had a bad plug, ran those speeds on 5cyl's. :eek: Wonder if there will ever be a BRP/Merc/Yammi shootout of the same caliber?

[hotbeek]

I don't have the magazine but was the Yamaha in it's rpm range ? I believe the Merc had to be a few hundred shy of it's rpm range. I just got a quick briefing from a friend with the mag. I know it's always hard to compare apples to apples. This test had the makings for being a good one. Can anyone elaborate more on the results ? Give us numbers, props etc. Did they actually run the exact same props ?(I mean switch props from each boat) We all know how props can vary. Did they dyno the motors ?

[jphii]

Here come the excuses.......

[Instigator]

I don't have the magazine but was the Yamaha in it's rpm range ? I believe the Merc had to be a few hundred shy of it's rpm range. I just got a quick briefing from a friend with the mag. I know it's always hard to compare apples to apples. This test had the makings for being a good one. Can anyone elaborate more on the results ? Give us numbers, props etc. Did they actually run the exact same props ?(I mean switch props from each boat) We all know how props can vary. Did they dyno the motors ?

Sportys, both ran 1.62's w/32 ET's but did not swap props.

They were privately owned 21' Strokers (I think), set up and tuned with help/support from motor builders.

Were not dyno'd only "advertised" per builders. I think the Yammi was 340 at crank and Simon was claiming 330 - 340ish at prop per his L/S dyno.

Both motors turned under 7K

I think I already round canned the article but will look again. In I think it was 30 - 60 the Yammi destroyed the Merc by 3 seconds as I recall!

The Yammi is the real deal and was brutal! It was even on a cut down mid.

[NNT]

Well thats ONE wickedly built Yammy over a sickly running Merc :D still waiting on the BWB test of ALL the DFI motors in the 250-300 range. Hopefully ALL will show up this time :D

[CRMERC]

In my view this would be great news. I love Merc but with out a competitor they will get lazy. If Brp wont pick up the ball than lets see if yamaha can give it a whirl.

[NNT]

In my view this would be great news. I love Merc but with out a competitor they will get lazy. If Brp wont pick up the ball than lets see if yamaha can give it a whirl.

http://maochan.files.wordpress.com/2007/10/oh-snap.jpg

[Chad Phillips]

That was only the 3.1L motor...the Hydrotec HPDI 3.3 is really the big bad wolf...

[jphii]

That was only the 3.1L motor...the Hydrotec HPDI 3.3 is really the big bad wolf...

Don't worry, when it spanks the Merc there will be "something" wrong with the Merc:rolleyes:

[THE HOGG]

Don't worry, when it spanks the Merc there will be "something" wrong with the Merc:rolleyes:

OF COURSE, OF COURSE!! DID I READ WRONG OR WAS THE YAMMI SO BAD IT HAD A MERC CASE ON IT??? OH HELL, COMING FROM THE KING OF EXCUSES I GUESS ITS NOT SO BAD AFTER ALL, YELLER, WHERE'S THE PIC OF THE NITRO MACHINE ON THE JET?:reddevil: WAS THE YAMMI MOTOR STOCK OR WAS IT BUILT? I BET SIMON'S ALREADY DIGGIN DEEPER THOUGH.

[WILDMAN]

nice to hear that..... i have a 300 yammi on my lib. plenty of power. its a fun rig and best of all.......its dependable..she already towed in two mercs lol have a good one

How big is your Liberator and your Yamadog? What speeds you running?

[whatsamerc??]

i believe both motors were built. i guess since the yammi had a merc case it doesnt count. seems to me people would be glad to have another reliable high performance option. would love to see one of them on an ally or a stv.......benji

[Superbender]

Where is wild wil now hummmmm:eek:

[DoktorC]

i believe both motors were built. i guess since the yammi had a merc case it doesnt count. seems to me people would be glad to have another reliable high performance option. would love to see one of them on an ally or a stv.......benji

How about on a 22 Talon?? ;) Merc case or not...it's a serious engine but you'd never know it...sounds and looks stock...just much faster. Oh..and it idles better then my buddy's 225x.

[hotbeek]

Didn't the Yamaha have like 14K+ stuck into it over and above the cost of the stock motor. The Mercury was a two year old conversion of an EFI motor.(some one must know the owners have them come forward to verify) Any idea on the longevity of the Yamaha ? Tough to compare apples to oranges ? Atleast they tried. Now let's grab three or four new boats identical setups and get all the big dogs in the fight ! I love to hear the results of these tests but everything/everyone must bring their "A" game. :cheers:

[DoktorC]

Didn't the Yamaha have like 14K+ stuck into it over and above the cost of the stock motor. The Mercury was a two year old conversion of an EFI motor.(some one must know the owners have them come forward to verify) Any idea on the longevity of the Yamaha ? Tough to compare apples to oranges ? Atleast they tried. Now let's grab three or four new boats identical setups and get all the big dogs in the fight ! I love to hear the results of these tests but everything/everyone must bring their "A" game. :cheers:


I would think most of that would be the sportmaster...and you make a good point..the merc comes with it (at a higher initial cost of course). Regardless of the case and mid the powerhead makes BIG power and I think that is the point of the comparo...all things being equal the Yami makes more power (in this instance). As for longevity on the Yamaha...well...I'm sure we can let you know if a couple of years lol. The engine is surprisingly mild and I believe (I could be wrong here) that is still runs on mid-grade gas.

[hotbeek]

I forgot about the lower..........that would be a good chunk of change.

I have no doubt that Yamaha or Evinrude can produce a monster. I think as stated earlier that this close competition will only benefit US the consumer. It's great to have a choice !:thumbsup:

[THE HOGG]

i believe both motors were built. i guess since the yammi had a merc case it doesnt count. seems to me people would be glad to have another reliable high performance option. would love to see one of them on an ally or a stv.......benji
i agree, i think its great!! just pokin fun at all the merc haters.. who's building hotrod yammi's? the only one ive heard of is russ rogers and i thought those were just his. it would be cool to see it and hear a little info on what they are doing to them.

[whatsamerc??]

i agree, i think its great!! just pokin fun at all the merc haters.. who's building hotrod yammi's? the only one ive heard of is russ rogers and i thought those were just his. it would be cool to see it and hear a little info on what they are doing to them.

i think hydrotech is about the only one building the new stuff. ray neudecker and bob kottman are real good with the older ones.......benji

[Markus]

This should be an interesting read.

Clearly, Hydro Tec has quietly figured out a thing or two about how to make power with a big-block Yamaha. Or maybe someone whispered something in Wayne Worthy's ear with a Japanese accent . :eek:

I can't wait until I get the magazine...

[JWTjr.]

This was a fun test. Couple notes:

1) Someone said the Yamaha was quiet. It most definitely was not so. It had a very menacing, threatening low growl at idle, and it was absolutely louder than heck at full bore. As the story said, it's a purist's outboard for sure.

2) There was certainly something wrong with the Mercury rig. No doubt about it. Unfortunately we didn't have the time to troubleshoot it, and Eric couldn't be there for the test. We spoke with him several times over the phone and in the end, when the issues could not be solved and more speed was not to be found, Eric (good sport that he is, and a stand-up guy who obviously knows well the phrase "play the hand you're dealt") said "print the results you got". I have no doubt that had we had more time to solve the problem, and/or if Eric was there to help, the contest results would have been much closer.

JT

[blkmtrfan]

Fun article and great post John :thumbsup:

[DoktorC]

This was a fun test. Couple notes:

1) Someone said the Yamaha was quiet. It most definitely was not so. It had a very menacing, threatening low growl at idle, and it was absolutely louder than heck at full bore. As the story said, it's a purist's outboard for sure.



Sorry, I meant it's quiet on the stock mid/lower. My brother's 3.1 250 has relieved exhaust and you're absolutely right about the LOUD!!

No matter the outcome it's AWESOME to see these tests take place. It's refreshing to see something other then reports on stock outboards that are so biased by advertising dollars that there is never anything bad said. I know you walk a fine line but I appreciate the open and forthright attitude from the participants and the magazine. Well done!

[Pro300x24LD]

This was a fun test. Couple notes:

1) Someone said the Yamaha was quiet. It most definitely was not so. It had a very menacing, threatening low growl at idle, and it was absolutely louder than heck at full bore. As the story said, it's a purist's outboard for sure.

2) There was certainly something wrong with the Mercury rig. No doubt about it. Unfortunately we didn't have the time to troubleshoot it, and Eric couldn't be there for the test. We spoke with him several times over the phone and in the end, when the issues could not be solved and more speed was not to be found, Eric (good sport that he is, and a stand-up guy who obviously knows well the phrase "play the hand you're dealt") said "print the results you got". I have no doubt that had we had more time to solve the problem, and/or if Eric was there to help, the contest results would have been much closer.

JT

Are there any plans to do a follow up with either a different motor or once the original simon motor has been troubleshot and fixed?

[Riverratt]

I don't know what everybody is bitching about. My team was not even in the battle but I am happy to see Eric Simon and Hydro Tec step up to the plate and squeeze more horsepower out of these motors that whether we like it or not is our future. Keep up the good work.:thumbsup:

[ken medendorp]

I think they (Yammi guys) must have adapted a sporty on it,and thats why they where faster:confused:

[Action Dave]

I don't know what everybody is bitching about. My team was not even in the battle but I am happy to see Eric Simon and Hydro Tec step up to the plate and squeeze more horsepower out of these motors that whether we like it or not is our future. Keep up the good work.:thumbsup:


:iagree::iagree::iagree:

The fact that we can still have these Merc/Yammi/BRP arguments are what makes this hobby/sport so much fun. There is no doubt in my mind that the black company has owned the performance market for a while. It's good to see the other guys poking their noses in and giving them a challenge.

Now as soon as NNT gets his Tohatsu into one of these challenges...look out. LOL.:D

[screwedbayou]

How big is your Liberator and your Yamadog? What speeds you running?
21 w/ 300. hoss 14.5 x 30. i am still trying to find the right height/prop
wanna take a trip to new orleans? hands on help would be great.
92 @ 6000 does that sound right or am i off on the setup. :cheers:

[screwedbayou]

I think they (Yammi guys) must have adapted a sporty on it,and thats why they where faster:confused:
hey ken... that is true.. yammi/hydrotec do offer an adapter to accept a sporty. pretty cool. now we need yammi to come out with counterrotate. it would be a different twin market.

[NNT]

Now as soon as NNT gets his Tohatsu into one of these challenges...look out. LOL.:D


that pos jap crap has to run right long enough for that dude http://forums.screamandfly.com/forums/images/icons/icon8.gif:D

[racerx]

You would think they would get the testing right, before they publish it,very unprepared...Always an excuse

[WILDMAN]

21 w/ 300. hoss 14.5 x 30. i am still trying to find the right height/prop
wanna take a trip to new orleans? hands on help would be great.
92 @ 6000 does that sound right or am i off on the setup. :cheers:

If you have a 1.87 gear, then your tach or speedo is wrong. Did you get a GPS speed? You should be running 83-84 with that prop at that rpm. All the 21 Liberators I set up with the 300X or 300XS run 104-105 on GPS.

[fastcat300]

why not use a stock 300x, and then put a stock 300 yami on the other boat i wonder what the results would be then. not even close.

[DoktorC]

If you have a 1.87 gear, then your tach or speedo is wrong. Did you get a GPS speed? You should be running 83-84 with that prop at that rpm. All the 21 Liberators I set up with the 300X or 300XS run 104-105 on GPS.

The 300 yamaha is 1.75:1

[boathouse]

why not use a stock 300x, and then put a stock 300 yami on the other boat i wonder what the results would be then. not even close.

and then it would also not be a comparison of modded outboards.

reading comprehension is your friend. embrace it!

[Markus]

why not use a stock 300x, and then put a stock 300 yami on the other boat i wonder what the results would be then. not even close.

They did that a couple of years ago. The results were close.

[Markus]

You would think they would get the testing right, before they publish it,very unprepared...Always an excuse

You have to realize that John Tiger does this stuff with very limited time and budget.

[JWTjr.]

and the budget is only getting tighter. Check the latest issue of BWB and count the number of boat manufacturer ads, then go back a year and count them in a previous issue. It's alarming. I have, in the distant past, been able to spend some time helping to troubleshoot engine and setup problems at the test site if they arose. Today we simply do not have the time or money to troubleshoot problems with/for the test participants, so I have made the pre-test communications rules very clear--come to the test with your rig ready to run, no exceptions. When we encounter problems we STILL try to help as much as time will allow, and when it's time to wrap it up, we go with the results we got. As for the "always an excuse" BS comment, my response is this---your comment is not worth a response.

JT

[Wizard]

In my view this would be great news. I love Merc but with out a competitor they will get lazy. If Brp wont pick up the ball than lets see if yamaha can give it a whirl.

Yamaha had nothing to do with this. This Hydrotech is a monster of a motor with practical nothing left stock. Granted the Simon motor was also not stock but it was also an EFI not a DFI like the HT motor.

This was nothing but a very cool shootout between two very talented engine builders. Yes you the consumer can purchase these engines but at much increased cost over stock since you need to start with a stock motor.

Fact is Tiger is right. Comments about excuses mean nothing and are not worth mentioning. Take this test for what it is. The Worthy's are fine people who really know their stuff. They work on the Yamaha platform because there is just alot they can do with it. Yamaha's are know for reliability and good solid performance. They are built to last and not in the same league as a Mercrury Racing motor. There is no such thing as Yamaha Racing division for outboards.

Would I have a Hydrotech Yamaha on my boat? You Betcha if I had the coin to spend. Do I love my Merc 300XS? You betcha and you could not trade me for a stock 300 Yammie if you threw in a date with Halle Berry. Well maybe I'd think about that! :D

[DoktorC]

Yamaha had nothing to do with this. This Hydrotech is a monster of a motor with practical nothing left stock. Granted the Simon motor was also not stock but it was also an EFI not a DFI like the HT motor.

:D


I'm pretty sure the Yami was a 3.1 OX66 efi...but your right about the non-stockness....

[screwedbayou]

If you have a 1.87 gear, then your tach or speedo is wrong. Did you get a GPS speed? You should be running 83-84 with that prop at that rpm. All the 21 Liberators I set up with the 300X or 300XS run 104-105 on GPS.
mornin randy, thx for tha reply. if you dont mind me askin.... what prop & height do you set at? i did take all gear, extra battery, speakers, and ran with very low fuel......could it make that much difference? i did get the drag 4. i lowered the motor to try help with holeshot......did not like the perfomance there. i am going sat with my tools and props to work on this in the water. i did buy a handheld gps. i will let u know...
have a good one :cheers:

[Wolverine]

They took two brands of modified powerheads and ran the same gearcase / gear ratio / prop on each one. The Yamaha was the clear winner.:thumbsup: The Merc lovers sure got their panties in a bunch over this one.;)

[fastcat300]

hey boathouse my point is,15,000 for a stock yammie + 14,000 mods wow almost 30,000 18,000 for stock 300x probally not much diff.

[Riverratt]

hey boathouse my point is,15,000 for a stock yammie + 14,000 mods wow almost 30,000 18,000 for stock 300x probally not much diff.
Don't forget to add for the Simon mods that was done to the Mercury.

[fastcat300]

point is 14,000 is alot to put into a motor up and above the inital cost. the 300x for 18,000 at the time was a great deal, at aprox 330 hp. im sure the yammi is a strong motor with these mods, but is it worth the extra cash? and is it actually any faster than the x on the same boat? you can do a couple of small mods to the x, poppet, fuel pressure,ect and pick up a little more for cheap.

[JWTjr.]

The point is to start with a blown or older engine...something that can be bought complete for cheap, like $4 or $5k...then do all the mods to that while it's being rebuilt. Then you get a new, customized outboard that has all new internals, for about the same price as a new engine. The difference is, yours would then be a custom engine that not everyone else has.

Dare to be different!

JT

[Fish]

john, thanks again for the comparisons and not forgetting about us outboard guys. I am a subscriber now and will continue to be, mostly due to your articles. thanks,

fish

[whatsamerc??]

well it aint like it is hard to sink just as much money into the merc. any brand that can be made to run hard for our type of boating is a plus. if the yammi would have been just a little slower than the merc it would still have been a bad ass motor and nobody would have cared how much it cost..........benji

[THE HOGG]

the Point Is To Start With A Blown Or Older Engine...something That Can Be Bought Complete For Cheap, Like $4 Or $5k...then Do All The Mods To That While It's Being Rebuilt. Then You Get A New, Customized Outboard That Has All New Internals, For About The Same Price As A New Engine. The Difference Is, Yours Would Then Be A Custom Engine That Not Everyone Else Has.

Dare To Be Different!

Jt

You Hit The Nail On The Head! Thats What I Did And Tests Like This Will Only Further Encourage Simon To Hunt For More Hp, And When He Finds It Then Ht Will Do The Same. End Result Is Its Great For Everybody! More Power!!

[DoktorC]

The point is to start with a blown or older engine...something that can be bought complete for cheap, like $4 or $5k...then do all the mods to that while it's being rebuilt. Then you get a new, customized outboard that has all new internals, for about the same price as a new engine. The difference is, yours would then be a custom engine that not everyone else has.

Dare to be different!

JT

That is exactly how my buddy ended up buying his HT powerhead (I actually think it's the one from the test...if not it's exactly the same). He now has a VERY bad ass Yamaha for less then the cost of a new sportmaster. It's on a 22 Talon so I don't think the added cost of a cut down mid and a sporty would add much in the way of performance...but the extra 100hp sure helps lol.

[vishus]

Yamamonster by HT is NOT the same powerhead, maybe one just like it...

That boat/powerhead is owned by Paul Hotman. He frequents the Bass Boat Central board...

http://bbcboards.zeroforum.com/zerothread?id=301114

http://i158.photobucket.com/albums/t119/sid_vishus/111mphsig.gif

AS you can see he is claiming a bit more than Wayne did on the HP and he has GPS verified speeds of 111mph...

Those Yamahas can fly. I was hopeful that they could compete with the Mercs in Champ, but I guess a fishing motor can only do so much against a race motor...

Out of the box its tough to beat a Merc, but a "damn good" wrench like the Worthys can even it up...

http://bbcboards.zeroforum.com/zerothread?id=287890

http://i158.photobucket.com/albums/t119/sid_vishus/115MPHStroker074-1.jpg

[vishus]

http://i158.photobucket.com/albums/t119/sid_vishus/StrokerRally2008Alabama190.jpg

[Markus]

We've gotta get Wayne Worthy to come over here and tell us what he is up tom

I haven't seen him on S&F in a long, long time...

[Markus]

Correct, Markus, and the budget is only getting tighter. Check the latest issue of BWB and count the number of boat manufacturer ads, then go back a year and count them in a previous issue. It's alarming. I have, in the distant past, been able to spend some time helping to troubleshoot engine and setup problems at the test site if they arose. Today we simply do not have the time or money to troubleshoot problems with/for the test participants, so I have made the pre-test communications rules very clear--come to the test with your rig ready to run, no exceptions. When we encounter problems we STILL try to help as much as time will allow, and when it's time to wrap it up, we go with the results we got. As for the "always an excuse" BS comment, my response is this---your comment is not worth a response.

JT

I hope you understand that there are lots of people out there who appreciate what you are doing, and that you are printing the results uncensored without applying much political correctness towards the manufacturers and builders.

Keep up the good work! :thumbsup:

[stylishskier]

was this merc power head originally a 300PM or a 300X? I think it's been debated before which powerhead is better, simons '335x' or the stock merc 300x but they are different I believe... I see ppl commenting on the differences and mentioning the 300x and it sounds to me like it wasn't a 300x but a modded PM 300

[DoktorC]

Yamamonster by HT is NOT the same powerhead, maybe one just like it...

That boat/powerhead is owned by Paul Hotman. He frequents the Bass Boat Central board...

http://bbcboards.zeroforum.com/zerothread?id=301114

http://i158.photobucket.com/albums/t119/sid_vishus/111mphsig.gif

AS you can see he is claiming a bit more than Wayne did on the HP and he has GPS verified speeds of 111mph...

Those Yamahas can fly. I was hopeful that they could compete with the Mercs in Champ, but I guess a fishing motor can only do so much against a race motor...

Out of the box its tough to beat a Merc, but a "damn good" wrench like the Worthys can even it up...

http://bbcboards.zeroforum.com/zerothread?id=287890

http://i158.photobucket.com/albums/t119/sid_vishus/115MPHStroker074-1.jpg

My bad...I had read earlier that it was a 3.1 not the 3.3. I guess there's more then one HT powerhead floating around from B&W tests lol.

[Instigator]

was this merc power head originally a 300PM or a 300X? I think it's been debated before which powerhead is better, simons '335x' or the stock merc 300x but they are different I believe... I see ppl commenting on the differences and mentioning the 300x and it sounds to me like it wasn't a 300x but a modded PM 300

I "heard" that Eric does no port work and that everything is "bolt on".
The article says he will use a 3.0 225 up as a core.
That being the case, isn't the porting of a 300X much more agressivel than a 225 and even a 300 Pro Max??

Wayne Taylor was one of the few guys I know of that was going into the 3.0's to any dagree.

[MODVP22]

I "heard" that Eric does no port work and that everything is "bolt on".
The article says he will use a 3.0 225 up as a core.
That being the case, isn't the porting of a 300X much more agressivel than a 225 and even a 300 Pro Max??

Wayne Taylor was one of the few guys I know of that was going into the 3.0's to any dagree.

the 300PM was a completely different ported block than the 225/250 3.0 fishing motors. Kinda like if you took a 2.5 200 fishing motor and a 2.5 hi-perf 260, etc. However, the 300x is different than the fishing motors and the 300PM. I actually got to see this at the Mercury Racing facility in 2002 during the assembly of one. The 300x actually uses an optimax block-Mercury told us that it "breathe's better" as far as the porting.

[Pro300x24LD]

I spoke with Eric about my 300x, he did say that he wasn't going to do any real porting per say but that he would "clean it up". I also didn't get an actual HP number from himon the X comapred to the other motors because it was not in the cards for me $$ wise at this point in time.

I don't want to speak for him, and I dont know enough about porting an engine to say how extensively a clean up job would change the motor.

[vishus]

http://bbcboards.zeroforum.com/zerothread?id=300938

after the test we put a 3.3l HPDI on the BLACK Stroker boat thats when we got the 110+ speeds and 1/3 BETTER FUEL MILEAGE than 3.1l ....Wayne Worthy owner of Hydro Tec put a 3.3l on his personal boat a 2008 Stroker and got 114 out of it....:eek:


BUT I believe that David Shook still has the FASTEST bassboat and it is an ALLISON running a MERCURY...:cool:

[LakeTrash]

Wayne felt the 300x porting was spot on. The sleeves he made for the 3.4 engines have 300x porting. He always said additional power is just a matter of getting more air in and out - and very few people were any better at getting that done.

LT

[whatsamerc??]

BUT I believe that David Shook still has the FASTEST bassboat and it is an ALLISON running a MERCURY...:cool:[/QUOTE]

but an omc is on the fastest outboard powered boat:thumbsup:.........benji

[Brian Harden]

Before I say anything else, I am a Merc dealer and my family has a long history with Merc. My dad went to Merc school for the first time in 1961 and became a Mercury and Mercruiser Master Tech in 1972. My brother has been a Merc Master Tech since 1991. I am a huge fan of Merc V6 engines and run them on my personal boats. All of that being said, I have also been a Yamaha dealer since since 1995. As much as I love Merc HI-perf products, after years of seeing how both companies operate and the quality of their products, Merc better be glad that Yamaha has no desire to enter the high performance market. If they did they would quickly pass Merc just like they have on consumer engines.:eek::D

[Superbender]

JT just wanted to say thanks for a great article,and remember boys the yammy they are talkin about started life as a 250 efi,wait an see what the 300 3.3 does:rolleyes:

[vishus]

already been seen:rolleyes:
after the test we put a 3.3l HPDI on the BLACK Stroker boat thats when we got the 110+ speeds and 1/3 BETTER FUEL MILEAGE than 3.1l ....Wayne Worthy owner of Hydro Tec put a 3.3l on his personal boat a 2008 Stroker and got 114 out of it....


I really wish that Yamaha got into the HP game, as well as HONDA and Suzuki. IF outboards were like HP Motorcycles, we ALL would be happier, faster and spend less money doing it...

I love my 2.5EFI, but would love more choices and CHEAPER parts...

[vishus]

let them know that a lot of people DO READ B&WB boat magazine for YOUR articles and tests... I have been a subscriber since the beginning, and I had a Rapidcraft Riot ModVP tunnel, now I have an Allison XB2002. I have always fished out of my boats, it just easier now...

Keep up the GOOD WORK and let everyone know that their are still people interested in HP and speed, and that we want to do it with OUTBOARDS...

[stylishskier]

already been seen:rolleyes:
after the test we put a 3.3l HPDI on the BLACK Stroker boat thats when we got the 110+ speeds and 1/3 BETTER FUEL MILEAGE than 3.1l ....Wayne Worthy owner of Hydro Tec put a 3.3l on his personal boat a 2008 Stroker and got 114 out of it....


I really wish that Yamaha got into the HP game, as well as HONDA and Suzuki. IF outboards were like HP Motorcycles, we ALL would be happier, faster and spend less money doing it...

I love my 2.5EFI, but would love more choices and CHEAPER parts...

the 3.3 wayne worthy used was stock?? Just wondering if the stock 3.3 was better than a modded 3.1?? Confused, just wondering

[SHAWNO]

this merc boat is power by a 1998 300 promax with simons bolt ons . is definitly without a doubt less power than a stock 300x out of the box. merc boat is owned by a guy named ron down in miami and it ran the fastest it ever has in the shoot out but if he had a stock 300x it would be an improvement. hydratech hands down took the shoot out but ron (simon ) took a knife to a gun fight

[vishus]

the 3.3L was a 370+HP MONSTER, it ran over 111mph on Wayne's personal Stroker...

[stylishskier]

the 3.3L was a 370+HP MONSTER, it ran over 111mph on Wayne's personal Stroker...

I know someone (maybe more than 1) here have a stroker with a 300x on it... what speeds do these guys see. Don't remember names just remember a stroker with multi color flake/yellow with a 300x and thinking it prolly ran pretty well.

[03bignasty]

That's not true Shawn. That is a Simon motor. The motor was built by Simon but it was not running right. The boat had run 103 plus on several occasions. I'm not sure what was wrong with it but it definitely was not running right. I know this because I sold this boat and motor to ron. It made pass after pass at 103 at the fastbass rally with all gear and trolling motor on the boat. I normally turned a 32 bullet cut chopper at 6400rpm's. That said the yamaha motor is faster but by about 2 mph from what I saw. That same yamaha motor was running 106 at the rally with no trolling motor. I'm pretty sure mine would have picked up about 1 mph with the troller off. The Yamaha is the stronger motor but by a couple of mph, not 5. Wayne was actually there and saw the speeds the simon was running at the rally. But still the yamaha powered stroker was faster. Had Eric Simon been there I'm sure the end result of the yamaha being faster would have been the same but I guarantee not by 5 mph. This was at the rally. And it ran about even with a stock Mercury 300x. John I was the one that contacted you about doing the test.
http://i36.photobucket.com/albums/e20/03bignasty/P1020386.jpg

http://i36.photobucket.com/albums/e20/03bignasty/P1010695.jpg

http://i36.photobucket.com/albums/e20/03bignasty/P1010617.jpg

[Sam Baker]

It's amazing to me how much things like this bring out the emotion in everybody. I've had my own boat with the same prop in seemingly same conditions run a few MPH different. If you have two boats - one that runs a couple MPH slower than normal and the other runs a couple MPH faster than normal - you now have a 5 MPH difference. If there's something TRULY WRONG with the motor, it wouldn't slow down 2 MPH or 3 MPH as it sounds like in this case - it would be 10-15 MPH or worse.

I've known John Tiger for most of my life. Most people don't know how valuable it is to have somebody with his boat racing and TESTING experience doing these comparisons. He knows how to test boats and he understands as well as anybody on the planet how to make things fair and even and how to differentiate between two different boat/motor packages. It could have been a bad day for the Merc and a great day for the Yamaha....who knows.

Wayne Worthy is no slouch. What's scary is how well they know Mercs too...check out Shaun Torrente's success this year. Who do you think had a hand in building those motors?

We're fortunate to have great engine builders all over the country now so guys in California don't have to ship their motor to the east coast or midwest to have engine work done and vice-versa.

Kudos to Wayne for building such a great motor that's a true alternative to the standard options. Also, kudos to him for pursuing DFI high performance. He's really going out on a limb and doesn't get enough credit for that.

[trashy]

I know someone (maybe more than 1) here have a stroker with a 300x on it... what speeds do these guys see. Don't remember names just remember a stroker with multi color flake/yellow with a 300x and thinking it prolly ran pretty well.
My friend Lou might be the one you are thinking about. It's a newer model Stroker with a 300x and I believe that he has run 104+ with it if I'm not mistaken.

[03bignasty]

That's not always true Sam. When I was at the rally the first day the boat would only run 100 mph. I knew something was wrong so I called Eric. He said to set the TPI with the throttle closed and then wide open. The numbers were off by a good bit. When I put it back on the water it ran 103. This was all within a matter of 15 minutes. I'm not making excuses I said the yamaha was faster, just not 5 mph faster. Don't get me wrong we're not talking about Wayne's HPDI's. They are pure monsters that will put a merc. on the trailer. They ran 115 on the stroker.

[specboatops]

It's amazing to me how much things like this bring out the emotion in everybody. I've had my own boat with the same prop in seemingly same conditions run a few MPH different. If you have two boats - one that runs a couple MPH slower than normal and the other runs a couple MPH faster than normal - you now have a 5 MPH difference. If there's something TRULY WRONG with the motor, it wouldn't slow down 2 MPH or 3 MPH as it sounds like in this case - it would be 10-15 MPH or worse.

I've known John Tiger for most of my life. Most people don't know how valuable it is to have somebody with his boat racing and TESTING experience doing these comparisons. He knows how to test boats and he understands as well as anybody on the planet how to make things fair and even and how to differentiate between two different boat/motor packages. It could have been a bad day for the Merc and a great day for the Yamaha....who knows.

Wayne Worthy is no slouch. What's scary is how well they know Mercs too...check out Shaun Torrente's success this year. Who do you think had a hand in building those motors?

We're fortunate to have great engine builders all over the country now so guys in California don't have to ship their motor to the east coast or midwest to have engine work done and vice-versa.

Kudos to Wayne for building such a great motor that's a true alternative to the standard options. Also, kudos to him for pursuing DFI high performance. He's really going out on a limb and doesn't get enough credit for that.

Very well spoken Sam !!:cheers:

[Wayne Worthy]

Very well spoken Sam !!:cheers:

Thanks for all the kudos here:) One thing not mention here is that the lake we were on was very short and if we could have stretched it out a little further we could have laid down some bigger numbers. Both boats had more to give:thumbsup:
By the way my buddy Kurt Mourer's Stroker with 300X is 109 mph:cheers:

[Markus]

Please tell us more about the 370 hp monster!