42 big step with 6s that run over 100mph
 

Curious on the ones out there how the water pickups are set up? I’m having some porpoise issues accelerating after 98 mph. I have a strong feeling I’m disturbing the water off the back of the boat. Let see some pics. Thanks !!

Adrenalinejunkey’s has 4 pickups. 2 for engines 2 for chillers. Pretty standard install, either side of center line.

That’s what I have also. Just checking on location.

https://cimg1.ibsrv.net/gimg/www.off...048985a4fd.jpg
This is how we did them on the new Fountain with big power.
https://cimg4.ibsrv.net/gimg/www.off...cbc261acc9.jpg
New 47 with big power.

Im identical to that. I also have 2 pickups for the chillers on either side of the drain plug. What would cause this thing to lift and break the prop bite at over 100. Spins 17x33-15 rake

What’s the propshaft height?

3” above bottom 18.5” apart

Bigger diameter wheels

The drives are to close they will contact each other

Going to have to space down. But I’d think you could go to 17.5”. If the drive are moving 1” something is loose.

Reggie told me 3-3.5”. I have had it at 1.5” and now raised it to 3. Did pretty much the same thing. Boat accelerates hard at 95 and on had it at 110 and a whole lot more there busy it was starting to get a little scary with the purpose

https://cimg3.ibsrv.net/gimg/www.off...18955f5b01.jpg
https://cimg4.ibsrv.net/gimg/www.off...9f2ef447e2.jpg
Im at same dimensions as you are. Props 17x30 18deg rake 110 mph no problems

^^ just the +3 degrees of rake carrying the bow

So upping the rake to 18 could possibly help?

I think they call them “big step” for a reason, the step size must have been reduced later.