two barrels

[OUTBOARDER]

bellmouths still available

[OUTBOARDER]

bellmouths still available

Have a few left!!!!!!!!!!!!!

[genea01]

do you think the 2 barrel carbs will work on a 59ci merc

[OUTBOARDER]

Yes, it would be possible...................
alot of work though to do it the first time

[JohnsonM50]

has anyone out there run two barrels on a 45 inch omc twin. I have a set of 1-1/16" bore carbs setting on the bench. A two piece manifold doesnt look that hard to build!! Or is it too much?

Ive seen it done to an OMC 22ci with 2 Tillotsens, it did OK as a 1st run but thats the only time I saw it. 2 of the 35hp OMC carbs [w/o the electric choke brackets] could be lined up & coupled at the throttle axles fairly easily as a side by side. Then of course the I-manifold would need work. Id guess you would have to put a plate in to separate the manifold since as a 1 carb-er its open to both reed sets. Ive been tempted to try it for some time but these would likely be too much for my 31.8 twins.

[OUTBOARDER]

has anyone out there run two barrels on a 45 inch omc twin. I have a set of 1-1/16" bore carbs setting on the bench. A two piece manifold doesnt look that hard to build!! Or is it too much?

60 Horse 2bbl Intake

--------------------------------------------------------------------------------

Quote:
Originally Posted by iwanajohnson
These are the results from the 2007 jet boat races and the black flame boat is the 60hp motor. it's quck. The same guy also owns a 2 cylinder that won the 40hp class that runs 52mph. it only gets beat by the 60hp but it could very well outrun the 90's and 120's.
Results:

60 Horse power class won by 60 Horse Johnson, Legend Boat, Jason Luttrell

90 Horse power class won by 60 Horse Johnson, Legend Boat, Jason Luttrell

120 Horse power class won by 60 Horse Johnson, Legend Boat, Jason Luttrell

150 Horse power class won by 60 Horse Johnson, Legend Boat, Jason Luttrell

60 Horse Twin 2bbl intake/front mods for Luttrell by Anthony McCulloch

[Fastjeff57]

I have one of these motors 'under the bench' and have been thinking of playing with it. Mine is an earlier 50 hp 45 twin (I measured it) without finger ports that I believe the later motors have.

The plan is to mount it on a Mark 55 tower and couple it with a drive shaft adapter. (My dink boat, where I run all kinds of homemade contraptions, must have a full gearshift LU since it's used as a dingy.) Plus, I have cornered the world on 11 spline Mark 55 props!

Question: Does anyone out there have photos of the later motor's bore so I can see what I have? Also, a few parts are missing off my powerhead, like the lower crank seal plate (same as the triple's) and the entire throttle linkage. If anyone has these parts laying about and wants to part with them, please let me know.

Thanks,

Jeff (Lifetime Merc guy)

[OUTBOARDER]

I have one of these motors 'under the bench' and have been thinking of playing with it. Mine is an earlier 50 hp 45 twin (I measured it) without finger ports that I believe the later motors have.

The plan is to mount it on a Mark 55 tower and couple it with a drive shaft adapter. (My dink boat, where I run all kinds of homemade contraptions, must have a full gearshift LU since it's used as a dingy.) Plus, I have cornered the world on 11 spline Mark 55 props!

Question: Does anyone out there have photos of the later motor's bore so I can see what I have? Also, a few parts are missing off my powerhead, like the lower crank seal plate (same as the triple's) and the entire throttle linkage. If anyone has these parts laying about and wants to part with them, please let me know.

Thanks,

Jeff (Lifetime Merc guy)

Take a picture and put it up!

[Fastjeff57]

Photos.

Jeff

Note: The bores are heavily greased to prevent rust.

[thornl01]

To my best knowledge, none of this series engines had fingerports. The 40/48/50/60 blocks were basically the same except for the later ones w/ the exhaust relief hole ( which you don't wont)
There is quite a few folks on this site that have very very good knowledge of the workings of these engines, and also can provide you w/ parts / information on mods that will really wake up these engines.

It all depends if you are going to race stock, or want to play hard.

A pair of 2 bls will wake this baby up.