01 192 Captiva Prop & Rev Limiter Question

Lane32r · June 2015

Okay...New to this, so bare with me in case I miss some details. I have a 2001 192 Captiva with a MCM 4.3 Litre Alpha Motor and use it in a Lake in South Carolina. The Max WOT says 4400-4800 so I decided to play around to see what it could do because I want to go from the stock 3 blade 21 pitch prop to an aluminum 4 blade to help with skiing, planing out faster, etc. I'm not worried about losing that much top speed because it is mainly used for cruising and pulling skiers, wakeboards, tubes.

I took it out on a calm day and just judging from the stock gauges, the rev limiter seemed to be hitting at 3600?! Trimmed all the way down, seemed to be right under that and running around 43-44 MPH. Trimmed up some was just pegging on what seems to be the rev limiter and running around 48 MPH. Again, just judging from the stock gauges.

With all of this being said, two questions I am stuck on. Should I be worried about the rev limiter hitting so low or could it be possible for the stock gauges to be 1,000 rpm's off?

Secondly, since I'm not worried about top speed, should I go to a 19P or 17P aluminum propeller?

Thanks for the input!

MarkB · June 2015

I can't provide too much value to this conversation, but here's my 2 cents. Are you sure your tach is giving you an accurate indication of rev's?

JC290 · June 2015

Bet the tach is off give it a good tap and see if it moves

Lane32r · June 2015

I'm pretty sure it's hitting the rev limiter. Just going off my ear and how it used to sounds when I raced cars. I'll try giving the gauge some taps later this week to see if that helps.