Hit 102.5 today!!!!
 

Not sure it's true but thats what my gps says!!

I just finished grinding the chit out of the nose cone and put on a new prop. I maxed out @ 5500 rpms, but the Whipple was screaming like I never heard before.... we were definately mov'in. Gps read 86 but when we got back to the dock the max speed said 102.5!! I'll take a pic tomorrow.

Do the math. 5500 ,1.5 ratio, pitch you know your slip . Whats the number. Even close would be good. You would have to be swinging a 33 pitch at 5500 with a 1.5 gear and a slip of 10% to go 102.

Math, formulas, calculations, physics, etc. etc. etc., don't work in my brain!!

Give me a throttle, a good motor, cold air, room to run and I'll show you some numbers!!!!:cool-smiley-027:

K, 102.5 !!!!! thats flying, how did the Y2K feel at that speed ??? what type of water conditions, flat or chop ???:grinser010:

Gary, I can neither confirm nor deny the number on the GPS. The water was flat calm, air and water temps in the high 60s, me and a buddy, 1/2 tank of fuel, 1 12 pack 3/4 full.

How did she handle????? Same as always!!! Flawless!

PE whats the pitch on the prop ?

30p Hydro, lefty. Prop had been labbed by TU, but not for my boat. Cupping added, reduced diameter to 15", blades thinned , no diffuser ring and some other stuff. I called Julie about it and she said the goal was to reduce stern lift on a 29 Fountain.

For me it took less trim to optimize speed @ various rpm, and made the boat feel less "stuck" to the water. It was a little loose if over trimmed. I could also wiggle the boat with the steering wheel. @4000 rpm I was going 63 mph if you can get any info from those numbers

so youu would have had to pick up 39 mph with 1500rpms ?
sound's like a lot of speed for such litle rpm .
what hp motor ?

So I guess that prop I sold you worked out!:evilb:

Was curious about how that wheel worked out for you. Congratz!

I don't get into boost til 4500 rpm

Yea, I was very surprized!! But honestly high 80's is more likely. I will take a pic of the gps just for a fish story:drink:

102.5 Or 86 Mph??

today i checked my balance at the ATM at 7-11 and it said 1.2 mllion. Then i went to the bank and i only had 860 thousand. true story.

PE your slip is 17% at 4000rpm. So if you go 15% slip at 5500 with a 30p prop your speed will by rite at 89mph. Flat water feals great doesnt it . Flat water in my boat takes away 3-4 mph. Your making me want to put my boat back in the water!! Ill have to post a pick of my Hydromotive Hybrid.

It was a great ride regardless!!!

My new hero !!!! 102.5 !!!!:grinser010:

lmao

At least it is possible for me! :party-smiley-048:

I run 2 GPS's, at a race last year one read max speed 74.6 the other read 111.2. I cleared both before the race these things spike not sure why, thats why OPA allows for the spikes, when a spike happens they download the whole race to verify it's a spike and not actual speed.

It happens. last season my Mako went 78 on the GPS. LOL

New record today, 141.5!!!!!

K, did you add wings ???? :grinser010:

141.5 is the max velocity when you drop a y2k out of a plane. I hope it had wings.

I only got 139.9 out of the Mako. I guess the Bimini acted like a parachute.