Real world mpg , 300 xs vs 300 x above 4000 rpm

[NAVISPEED1]

Uhhffff, sounds Killer!!!! Keep us post it!!!

[bigtis]

I've always run 2.5 200's and 225's. I've now got a 2.5 200xs, and below 4K the fuel comsumtion is cut down by close to half the amout of fuel. above 5500, I think she's burning the same amount.

[bigboy]

Bigtis is that half the amount compared with the 2.5 200 or the 225?

I wonder if yous aw any difference in speed from going to the 200 to the 200xs's? How cdo you compare both engines? I have a 2.5 200 carb now.

Thx

[jpf091959]

Sorry don't want to hi-jack your post, but I am very impressed with the fuel mileage of the 300xs'

I have Happy Pigs old 25' Motion. He was running 300X's, I think he was running 111 in fresh water and ~114 in salt.

I bought it with 225's and ran 90 mph.
I have just replaced the 225's with new 300xs' with offshore mids and sportmaster 1.62's. It came out of breakin mode last week. I have hit 106 into about 8 mph wind off the front right, on the Columbia River. I had the benefit of a few mile an hour current. The engines have to be getting at least 3 mpg, just not using much fuel.

I want more speed any idea's would be appreciated. I mounted the engines directly to the transom, 1 -1/2" above, gearcases straight forward, no toe, props turning out. I run stock mercury 3-blade 15x34's. I think the engines are turning 6000 rpm, I haven't looked at the tach's close enough.

I have less than 4 hours on the engines, so they may loosen up some more.

[crxski]

I don't get how the outboards are loosing speed with direct injection.... Ski-doo just came out with there Etec on the 800r motor and its gained a few hp and revs faster, no smoke gets 19mpg and has more torque...

I've read 5 articles on Etec and its amazing, modding might be a pain but its efficient all the way up till 90% throttle, WOT only alittle better, pending (sled only) exhaust valves.

[NAVISPEED1]

Hey Skater 32, Any progress with the 300x mods??

[Skater 32]

we are process of laying graphics out .Here is rough idea, color is benz silver and new camaro synergy green . The stripes are going to be snake-skin appearing

[NAVISPEED1]

Nice, it will be a sweet looking cat!!
And how about the motors?

[Skater 32]

engines are just about done but spoke to Shaun and said have them ready end of this winter . I have had this project for two years now and getting restless and to be honest I want a 40 Skater with big power and # 6 drives so I may not have this long

[NAVISPEED1]

Cool!! Just keep us post it on the progress!!! 32's are really cool, I'll be pushing to at least get a 24 in the next couple of years, I'm thinking in getting a hull and then work on it. We'll see. Take care!!

[Skater 32]

Trust me **** is for free , just saw a 32 with 800 SC and # 5 drives go for 28 k on trailer . 24 is too small and in my opinion a death trap

[NAVISPEED1]

Hmm, interesting!!
Well, my idea is to go with the economic set up package, a 24' either Skater, Predator, Liberator or Motion and ad a single 300x Simonized to 350hp+ I know it won't be the fastest 24 out there but 95mph+ will be fast enough to have some fun without braking the bank. insurance wont hurt much either. We'll see!!
Take care Buddy!

[WSJR1]

This is kind of where I am. We may be upgrading to a larger boat from a Hydrostream Vector. I'm trying to find the perfect boat for what I'd like to do.

I'm thinking open bow for more folks, like a dcb open bow, or a ultra custom shadow deck 23. My wife really wants the room.

We have a few smaller rivers near by then we have some bigger waters and even the mouth near the bay in Virginia. Bay's probably a little rouch, normally for what I'd like.

But, I'd like to stay with a large outboard, 300 I guess and just go as fast as I can when I want but normally just run around cruising mostly, tubes etc.

Now looking at mpg fuel rates and boats.

Hmm, interesting!!
Well, my idea is to go with the economic set up package, a 24' either Skater, Predator, Liberator or Motion and ad a single 300x Simonized to 350hp+ I know it won't be the fastest 24 out there but 95mph+ will be fast enough to have some fun without braking the bank. insurance wont hurt much either. We'll see!!
Take care Buddy!