Moderated Discussion Areas
ContinuousWave: Whaler Performance
1981 REVENGE 22 with I/O
|Author||Topic: 1981 REVENGE 22 with I/O|
posted 03-30-2004 10:28 AM ET (US)
Two years ago I finally bought a Whaler. I'm curious if the right prop is being used and if I should look for more performance.
I have the original 3.8 litre V-6 OMC I/O set up with less than 700 hrs. It came with two props: 14.5 X 17 and 14.5 X 19. The prior owner had the 19p on the boat but the engine seemed to lug and wouldn't turn up. With the 17p, which I suspect was original, the engine gets much closer to the recommended [crankshaft speed] of between 4200 and 4600 RPM. The [tachometer] is slighty suspect. It shows about 4200 RPM with fuel at 80% filled and two aboard. By GPS this is just over 26 knots. I put tabs on the REVENGE which greatly helps the mid-range speeds but not top end.
Should I look for more (speed)? Anyone know the set-up? I was thinking of going with a SS prop, any suggestions?
We are still ice-bound.
posted 03-30-2004 12:43 PM ET (US)
Don't waste your time trying to get more. The 3.8L was only 175hp I believe, not gonna do much better than that. My advice is to either put a 350 in it or fill the hole and mount a 225 outboard on a bracket. The OMC outdrive is not the most reliable but changing over to a mercruiser will be a pain but would be a drastic improvement. My friend just put a used Mercruiser V8 setup in an OMC boat and it ran about $6k, new would be about $12-15 depending on what you want.
Just for future reference and my $.02.....anotherwords don't drop a lot of money in it.
posted 03-31-2004 05:28 AM ET (US)
Re-powering with a new I/O would probably be cheaper. Compared to the price of new 225-HP Outboard motors, those I/O's look like a bargain.
posted 03-31-2004 05:34 AM ET (US)
And also some fiberglass work filling the hole and a purchase of a bracket too.
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