C.I.M.

My 2000 twin step with 500efis would run 93 with labbed 32 bravo's. Props turning in.

ALL_IN!

Mine turns in with 34 bravos. ...my biggest gripe is the 34's seem to be so fast around the docks (at idle speed). The boat moves quite a bit of distance / pretty quickly.

But don't worry about maneuvering around the docks - if you pay attention, you will learn what works and what doesn't.

ALL_IN!

Stock 500's? GPS?
That seems fast for a 500 boat.

KWright

Not if he had it dialed in. He could get that # with 32's and still have 12% prop slip.

Interceptor

I'd suggest trimming the drive out more once you've on plane and raising rpms. 2.5 is a drive in condition, 3 is neutral.

C.I.M.

Yes, gps and radar at the loto shootout. I spent a ton of time on setup on that boat. Lots of fun though.

Drew555

So I just went down to the shop where I tinker all winter on my boats. The guy who owns the place only takes time off to go to proformance schools " just to tell them there doing it wrong". He work 7 days a week 365 days a year till midnight every night. he has 35+ years making shi t go faster. Certified in almost everything. Builds boats mold up. Nick named the guru. So I asked him a learned engineer what happens if you spin in or out. .... Final answer ( like I thought being a hydronic engineer myself) causes stern lift not bow. So the interesting point is that the hustler turns out causing bow. Perhaps this is how the lesser the wetted surface. I have not compared the distances of the steps to the stern. Being its a ventilated hull I think turning in could be the reason for spin-outs on some of the twin step boats. Not to mention that the lifting strakes on a fountain are rounded a bit for speed but not stability. The hustler has very sharp edges causing great stability . So if I'm wrong with the in or out science please show me the detailed proof because I'm still just listening to someone TELL me something. I want science until I can try it for myself

Crude Intentions

Without owning one I know the phrase is "spin in to win" everything I've read fountains run a few mph faster spinning in.

JaayTeee

[QUOTE=Drew555;4386762]So I just went down to the shop where I tinker all winter on my boats. The guy who owns the place only takes time off to go to proformance schools " just to tell them there doing it wrong". He work 7 days a week 365 days a year till midnight every night. he has 35+ years making shi t go faster. Certified in almost everything. Builds boats mold up. Nick named the guru. So I asked him a learned engineer what happens if you spin in or out. .... Final answer ( like I thought being a hydronic engineer myself) causes stern lift not bow. So the interesting point is that the hustler turns out causing bow. Perhaps this is how the lesser the wetted surface. I have not compared the distances of the steps to the stern. Being its a ventilated hull I think turning in could be the reason for spin

See Bret and Bob's answers

http://www.offshoreonly.com/forums/o...questions.html

http://www.offshoreonly.com/forums/p...s-outward.html

The easiest way to understand this is to look at what's going on with the prop blades in the area between the outside of the gear cases and the chines...the low pressure side of the blade is down, drawing the transom down when rotating in ( stern leverage,)...outside rotation, the low pressure side is up, creating stern lift

1989mach1

Thanks jaay they almost had me thinking I was wrong lol...