If You Could Build Your Own Omc Looper...

[baja200merk]

WHAT WOULD YOU DO :D fingers, behind the liner :eek: , efi?, heads :confused: porting? rpm? intake? rotating assembly?

wut do u think only merc guys can have this convo? :rolleyes:

kevin :D

[jphii]

.... wut do u think only merc guys can have this convo? :rolleyes:

kevin :D

Pretty much sums it up:D:D

[6Killer]

Like this?

6

[jphii]

OK 6. I gotta ask. What's all done to it?

[pyro]

I would like it to have a strong chain attached, and some appendages that help hold the boat in all kinds of bottom types: Sand, muck, rocks, etc. It would also be nice if it had a trick release of some kind, in case it gets stuck on a stump. :D

[StratosVT]

What I'd do is pick up the phone and call Acie Stringfield (Acie's Outboards in Houston, TX). Acie is the sh$t when it comes to OMC's! It's not worth my time & effort to experiment with mods that may or may not work. Acie has tried all the tricks and he knows what works. Also, he's a perfectionist so his work is top notch. I believe the pic posted by 6Killer is Acie's drag motor. It is Nasty!

[Scream And Fly]

Chris, is that Galen's motor? He makes some amazing stuff.

[H2OPERF]

Yea put the chain on so it will only do 80.6 gps like pyro.Dave :D

[StratosVT]

I believe the pic posted by 6Killer is Acie's drag motor.

Actually, I think that motor is Galen's. I failed to mention that Galen provides a lot of the trick parts & machine work for Acie's motors. Galen's work speaks for itself!

[Hot Shot Merc]

Coming from a Merc man that bitch looks BAD :eek: :D

[Fish]

what 6killer said as translated by Hot shot!

[baja200merk]

smokin motors guys! id love to build my own, do my own port work and wut not... the cost of havin someone else do it makes me want to but the risk of it not workin scares me away...

whats done to the motors pictured?

[SUPAJAY]

I would buy a new merc :) with a warantee!!!!

[jphii]

Something like this might be fun too.

[baja200merk]

how does the crank get oil on that v4? thats behind the liner no?

kevin

[jenksam]

Joe You Got Any More Pics Of That Set Up If So Put It In My Mail.

That Motor Breathes Like A 60deg Motor. Now That Has Got To Be Good For The Torque.

[jphii]

I may have one more pic, but I think it's on the office cp. I'll check next week. I do have that pic bigger too. I'll email it to you.

[aerj]

the omc in 6killers post went to florida i believe,the one in fish's post is Acie's taken at the Buhlow race.
i would start with a 3.3 block,use aries pistons,stroke it,msd,mad efi computer,Galen's slide plates,fuel rails,flywheel,timer base and heads.porting and rod slot work.Wayne Taylor's x front half,either single or double x.

[RUDERIOT]

what do you mean, single or double x??

[aerj]

a single x uses one large reed block,a double x uses two smaller reed blocks.Galen runs a double x,Acie uses a single x.

[tico frank]

Like this?

6
http://forums.screamandfly.com/forums/attachment.php?attachmentid=98857&stc=1&thumb=1 (http://forums.screamandfly.com/forums/attachment.php?attachmentid=98857)


6Killer i'm sorry that's that's not a looper, thats a "marine flux capacitor".

[RUDERIOT]

a single x uses one large reed block,a double x uses two smaller reed blocks.Galen runs a double x,Acie uses a single x.
Thank You Sir for clearing up the venacular. I knew of both styles but didn't know what they were called. These intakes work very well with injection but don't seem to be suited to a carb. instalation. From what I've observed this is because they increase intake volume/area behind, & I suspect also in front of the reeds. This isn't really a big problem with injection, but certainly is with carbs as it drastically reduces vacume signal to the carbs at lower r.p.m. levels. Just my $.02

[aerj]

Ruderiot,Acie had 6 crossflow two barrels on a single x front half,didn't work nearly as well as injection.
i might be able to find a picture of it real impressive looking.

[uscgman]

4.0 liter Etec V8 335hp Ocean Pro with Mercury DTS and Smartcraft.

[RUDERIOT]

Ruderiot,Acie had 6 crossflow two barrels on a single x front half,didn't work nearly as well as injection.
i might be able to find a picture of it real impressive looking.
Thanks, aerj. Yeah, carbs just about can't work as well as a well tuned e.f.i. systen even without the volume/area/signal disadvantage of this front half.
I'm probibly gonna do a sheetmetal six deuce front half for mine this winter. I'm looking at canting the reedblocks to direct flow to the boost ports. There is a lot of power to be had in the boost ports of these motors.

[A.Acosta]

front half with carbs

[jenksam]

Are You Talking About A V-6 Looper?? I Have A 6 Two Barrel Set Up That Was Made Using The Stock Intake. We Use The 1 1/4 X-flow Carbs. It Lacks A Little On The Bottem But What A Ride After It Gets Going And Its On A Mild 2.7.!! Cant Wait To Put It On A Hot 3.ol.
I Get A Pic And Post It.

[RUDERIOT]

yep, I'm talking about a V-6. Please do post the pics.

[jphii]

Hey Sam, put that on my motor!

[6Killer]

These intakes work very well with injection but don't seem to be suited to a carb. instalation. From what I've observed this is because they increase intake volume/area behind, & I suspect also in front of the reeds.

Waynes case halfs, both single and double, have MUCH smaller crank chamber volume than the factory case half, the double probably has 12-15% less and thats a lot. With a carb set up like the one pictured by A. Acosta, Chuck Martini won ODBA High points in Lake Racer in 2000 driving a Triad V21 winning 5 of 7 events, including Jasper. The next year, he only ran Jasper and won again. We call him 2time. Carbs work well on the single X, Martini proved that, just not as well as EFI.

As a comparison, Acie had a strong 6X2 bbl set up on his single X front half. He used 6 each 235 crossflow carbs, probably as good a carb as there is for that style. It was a royal pain in the ass to deal with, just too many jets. I think he had around $1000.00 invested in just jets he had so many. Gasoline everywhere every time he changed jets, he spent more time on the trailer changing jets than he did racing.

The very same motor with NO other changes was around 1 second quicker and 8-9 mph faster in the quarter mile with Wayne Taylors SDS fuel injection. There was absolutely no comparison. It took almost 30 minutes to tune the MAD EFI, he never left the drivers seat or put back on the trailer.

It took about a year to get the 6X2 bbl "close".

Does EFI cost more? No, not in the long run, it is actually less expensive cause you tear up a lot less stuff.

BTW, with the EFI, Acie entered 11 DSRA races in 2 seasons, he won five 2 day races, finished runner up many times and took Pro Gas High Points in DSRA 2 years in a row with the same motor without changing pistons or even rings.

Pull it out of the garage, wash it, fuel it and kick ass.

As pictured it will pull a 24 pitch Lightning ET 9500 rpm in the quarter using a 1.75 gear all while weighing 50 pounds more than the Mercs, 1350 VS 1400. He also uses a sportmaster case rather than the faster/quicker XR6 for duaribility reasons.

He has a much stronger motor than that one now.

6

[aerj]

yeah,what 6killer said.

Merry Christmas Chris,to you and your family.


allen

[RUDERIOT]

how does the crank get oil on that v4? thats behind the liner no?

kevin

That looks like a V-4 Faststrike style setup. I don't know what they actually call that motor.

[JWS]

Hey rude whats happenenin? Good seein ya again this summer @ the rumble. I would like to build that ole 3.0 LE this winter. Gettin pretty tired. watcha think? Any suggestions?

[RUDERIOT]

Yes I do, Jeff. Take the powerhead off & bring it up here. My builder/designer is a good friend and totally honest. He'll get you where you want to be.
You still want to be able to "cruise" the motor & run pump gas, right?
It was good to see you at the Rumble, also. I wish we could have talked more, but there's always next year.

[Instigator]

Hummmmhhhh???


P.S.,
Riot, I'll call you tomorrow. Am off all week and in town.

[Instigator]

6 Killer:
Great info.
I remember watching Chuck and shaking my head and thinking WTF???
When he came back for the one race @ jasper and won it.... I was blown away!!
Great info on Acie too.
No question that you can make carbs work pretty damn good but I'd much rather have EFI!!!!
Gary

[mrd32]

Im totally amazed at how much punishment a 3 litre will put up with, and still hold together,

We've had a them turning hi 9's and live for the racing we do, we've had them come apart and still finish a 50 lap race, with two piston and rods gone... our last mod u race we snapped the block, cracked the intake port side of the block and took out # 2,4,6 , we ran the final race , took out the rods and pistons and went on to race and finished under power for 4th....lol none of my Merc's in the past would have done that...lol

MAD-EFI , great stuff, Taylor really makes unique and reliable stuff, They can really put together a nice over all package.

A nice port job and good set of rods to turn 8000, is easy to achieve. Mart

[Instigator]

H2operf took me a ride last week in his rig down in Miami.
4 seat (stock lay up) STV Pro Comp, all factory parts including carbs except Sport Master L/U and it ran 8400 @ 1.87 X 30" Spinelli for miles with 130 lbs compression on pump gas!
This motor has been together for 3 yrs (never apart) and we ran 50 miles through the Keys and back that day.
Not bad for a $3K ficsshhhin mohtar :D

[ken medendorp]

H2operf took me a ride last week in his rig down in Miami.
4 seat (stock lay up) STV Pro Comp, all factory parts including carbs except Sport Master L/U and it ran 8400 @ 1.87 X 30" Spinelli for miles with 130 lbs compression on pump gas!
This motor has been together for 3 yrs (never apart) and we ran 50 miles through the Keys and back that day.
Not bad for a $3K ficsshhhin mohtar :D


That had to have been a riot ,a 50 miler. I want to come down there and do that sometime.There's plenty of avgas too isn,t there?

[H2OPERF]

Well not quite stock but built from all stock parts.Ken yea selfserve at local airport where i work out of,come on down.Dave

[JWS]

Ruderiot-- I Will Be In Touch With Ya Soon. I Am Trying To Locate Another 3.0 Motor. Theres A 91 On The Board But I Havent Heard Back From The Guy Yet. Any Way, If Ya Get Down To The Fort Or If I Am Up Around Poudunk Lets Have One Or Two. Later , Jeff

[Instigator]

H2operf took me a ride last week in his rig down in Miami.
4 seat (stock lay up) STV Pro Comp, all factory parts including carbs except Sport Master L/U and it ran 8400 @ 1.87 X 30" Spinelli for miles with 130 lbs compression on pump gas!
This motor has been together for 3 yrs (never apart) and we ran 50 miles through the Keys and back that day.
Not bad for a $3K ficsshhhin mohtar :D

built from stock parts and Daves ideas
No EFI, no NOS, no SVS, no Yammi ign, no custom front half, no 200 lbs compression
p.s., we ran pump gas that day. I know cuz I paid for the stuff!!
just proof of what you can do on the cheap if it's well thought out and you're carefull.
Way more in Daves motor and we both know it. Problem is....... with 3 yrs of succesfull use (abuse), 50 - 100 mile trips at a time being the norm, pump gas, idle ability, lives (130 140 *) at extended RPM ranges....
kinda the old "if it ain't broke, don't fix it" kinda deal.
Dave is one of the guys that normally reads only cuz he don't like being called an idiot when he posts what he's doing and told that it won't work :p :D ;)
Gary

[baja200merk]

h20 dont be afraid to post numbers ;)