top speed

[washmaster]

what should the top speed and corresponding RPMs be for an '88 TS6M with 351?

-ah

[1988comp]

it all depends on your prop, if you have the original Michigan 13x13 (probably) you should be able to do 50 or so at sea level, at about 5200rpm.

I use a 12x16 racing prop (highly cupped) that allows me to rev to 5400rpm immediately, and pull up as many as 8 skiers, I can go 43mph with that set-up, and then there is all in between.

If you want to really go, and have and indmar 340 or better, I have a Michigan Wheel 14x16 prop that will make you go fast, 60mph or so if you can turn it.

The 1988 Comp with a 13 x 13 prop. does 45 mph at 4600 rpm max. You may be able to get a little more speed out of it with a different prop., but I would watch the rpm. If you want your engine to last, don't exceed the PCM rating of 4600.

[Jake]

Top speed on the 88 Comp with the original prop. was 45 mph. The max. rpm is 4600. You might be able to go a little faster with a different prop.