Brian, I was wondering that myself as I used that mercury prop caculator after I went out............ how accurate is a hand held GPS?

these cat are usally 6-8 maybe 10% slip???

Phil

Handhelds are accurate. Check your ratio first. Based on the bottom side of the hatch your boat may have had blowers at some point so the ratio may not be 1.50. If it is 1.36 then your slip is reasonable and your speed is reasonable based on the data you provided. If they are 1.50 then I question rpm.

Slip depends on the boat. A wise man once told me to work on slip first and the speed will come.

I also believe he has 1:36 ratio, My Buddy's 31 Awesome w/500efi's 1:36 with stock 30P (not labbed) no boxes, runs 92-93 @ 5100 ish , correct me is I'm wrong Bill.:drink:, so having labbed B1 & boxes netted him a couple MPH

my slip # is >10%

I will check that gear ratio. I think you are right. I ran it on the prop calc. and with 9% it puts me at 95.

Randy are you going in this weekend?

My slip at WFO is much less then 10% :)

I was out for a quick ride on Saturday, I buzzed by the pier @110 :eek: felt real nice, I'll be out this week end, hopefully the weather cooperates

Nice, wish I had another 15 at the throttles:angry-smiley-044: It's been a long winter.

my gear is a 1.36.

Phil, nice carpet cleaners.

haha, I guess I should have played them before I posted......:bong: