Cobalt Boats Forum

When I give her full throttle she jumps right to 5K+ rpm, think I've seen 5200 on the gauge. The holeshot is really impressive. On plane in 2 seconds.
Guess she could be bouncing off the rev limiter if I keep pushing but I always back off once she passes 5k. So WOT is somewhere above 5k.
3K rpm is ...

I think I found why I'm missing speed.
It seems I've got F3 props on it.

Should I switch to F5 or F6 to get some more speed ?
Anybody knows how the boat was propped from the factory ?

Take a picture of your engine too please. What year is your 226? That is one of the fastest hulls Cobalt made so it should turn mud 50s. Maybe your reading kph? Take a picture of your guages. 😂😂


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Engine and numbers. Year 2001.
Currently no picture of gauges but it ...

Hello fellow 226 owner. I experienced the same, but with no bottom paint. Have the same boat, motor as you. My props are F6’s, they are stamped On the props. The bottom paint will affect the top end. I see at wide open after having the hull waxed (no bottom paint). 55-56, at 5200 to 5300 rpm ...

Oh yeah, thanks for the welcome guys!

My tach only runs up to 5000 rpm.And it is the 5.7 gxi TBI with 315hp so I've read WOT at 4600-5000.
The holeshot is is very good, on plane in only a few seconds. Engine sounds great, it climbs to 5000 in no time. No hesitation whatsoever.
I'll try to take a look at the props. They are SS props but ...

Hi, I just bought this 226 a month ago. Found this forum while looking for some info.

She is powered by a VP 5.7 GXI with Duoprop.

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Great boat.
Only thing that bothers me is I can't seem to go fast.
She pulls great and I'm seeing 5000 rpm but she won ...