Fast Fred's OMC Mod 50 secrets Thread #2

[sheuninck]

1.] is there more than one type of carb, one with two screen vents and one with one screen vent? see attached pic. is there much difference in performance? I may need to buy another one with the two vents.
2.] with stock sst60 73D jets, the stinger ran slower then with the stinger carbs. stock 56ci 70hp has 65D jets, maybe i shoud try them?

[Fast Fred]

hows the burn look, musta been wet or black.

[Fast Fred]

the size of the outlet of the carb is important, the newer or different carb of the same outlet size may get a better power curve but thats all. once you get the mix (it's best to leanout a little at a time, big jumps could cost ya some pistons)
it will make more power and you will go fasta

[sheuninck]

yea they were black and wet, the one with the odd carb was blacker. will try 69D. if too white will go back up, if still black will keep going down till brown

[Powerabout]

The SST 60 seams to have quite large mains...
I also dont quite see what model engine SST60 carbs came off or are they unique on the 60?

[Fast Fred]

Whitey !, you out thare, did you get any exhaust addapter specs? over all hight, just skim the bottom? what about the mounts?. lets me know if ya gots any thing, did find a spare 56er case.
thanks FF
water pick up toob hight too.

i'll look up them carbs, port hight thinkin be the key to it.

[Detroit Whitey]

Fred on the tuner i faced both sides shot the hole for the mounts and the power head.As for lenght you know your gonna have to play with that one i made mine so i could change between a couple of lenghts.Think i got a case. didnt get what you were talkin about on the water pick ups?

[Fast Fred]

theres got to be a spec sheet, the sst uncut is 2",the stock Stinger addapter is 1.750 tall, .250 thou' is a lot i'll see if Dave has got them

[Popa Sam]

The SST 60 seams to have quite large mains...
I also dont quite see what model engine SST60 carbs came off or are they unique on the 60?

Beginning 1983 the Stinger had the same crankshaft and main bearings as the SST60. The mains were the same in prior years but the crank was cast rather than forged.

Later model Stingers and SST60 carbs are the same except jetting.

[sheuninck]

what was the difference in jetting?