anybody have any suggestions on hooking these gprs up like the new stxr the gprs are like a basketball on the cc

I would have to stay Magnum pump,3 degree nozzle mechanical trim tabs and shim the ride plate.

I think that extending the lenght of the hull by using the mech trim tabs would help.

This is only my opinion.

Fercho

i heard alot about the single bar shoe combo im running the one two bar scoop. wich pump 14 vaine you think. I raced a couple weeks ago and the stxr is far supperiour in the rough really frustrating im constantlly bouncing in and out of the water

I had the single bar on my single pie and did not like it. A 3 degree nozzle, shimmed ride plate and mech trim tabs were my best seup. I had a Nujet impeller which I am sure is not the best for rough riding.

A 12 or 14 vein. I can not answer that question for you. Since I have not tried them.

I can only imagen what a Magnum will do

[ 08-02-2002: Message edited by: Fercho ]

quote:

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Originally posted by Fercho:
I can only imagen what a Magnum will do

[ 08-02-2002: Message edited by: Fercho ]

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There is no comparison between a Magnum pump and a stock pump... If you want ultimate hookup then the Magnum is the way to go... Just remember you will loose some of that top end. I did an ocean race with my magnum on there and it was a night and day difference. When you can come back into shore and just glued to the water with out a problem then that is impressive to me..

Next time out will be with triples and mechanical trim tabs.. Boy can I not wait for that day to come....

Hey Fercho you wouldn't happen to have the instructions for the mechanical trim tabs would you? If so can you scan them and send them to me or fax them?

The 3* nozzle and pump cone combined with the stock ride plate will reduce much of the bounce in the chop but you will loose 4/5 mph on top end on a single pipe GPR. Still trying different combos to see what works best for all conditions. rp

If you have the HP, then use the riva pump shoe and intake grate with the 14 vane magnum pump. The scat-trak 3deg nozzle and steering nozzle with the interchangeable rings to fine tune the pump will help also. Ross

Pat I got them on a PDF file but it is 17 megs in size. I need a different e-mail than Hotmail to be able to send it to you. I do not thik that Hotmail will hold so much info.


Fercho

its a **** shame you have too do all this work and then loose your speed to hook up like a stxr in cc racing

Three degree nozzle, R/D ride plate in combination with the 3rd generation (thick) trim tabs. The thick tabs allows you to recover quicker from the bouncing. Sure, you are going to loose top speed, but honestly, who is running 70mph Kawi's in cc locally? Best to look for a 66-67mph boat that stays hooked and accellerates hard.

There is no substitute for the magnum pump, set back or not. With these components, you will be able to negotiate turns much better and take the Kawi's as you accellerate out of the turns.

Salty

this thing is killing me!!!

Dang Fercho that is a huge file for a pdf.. You can try to send it to pat.molettieri@verizon.net.

Thanks

17 megs zipped?? If not then just zip it before sending and that should make it much smaller.

The stxr has about a 12inch longer lentgh than a gpr, a better intake area, better pump, better ride plate, lighter hull, dollar for dollar the stxr is a better boat.

We have an stxr, stock apart from a r&d ride plate radar'd at 70 mph.

I have a magnum pumped stage 2 RIVA GPR that gets smoked in rough water by the STXR, my GPR is no slug, we lose no top end by using a 12 vein magnum 13/19. To beat a STXR, I have dropped the cash for tripples & NOVI's.

Cheers


Peter

70 MPH on radar with just a ride plate??

No offense intended Blue Water, but as a STXR owner, that's a bit tough to swallow. Are you sure the owner hasn't done some internal mods?

An R&D rideplate will not give you 70mph, how were these #s gotten ? (GPS or Radar)

Hey Jar, your speedo read 70 on Sat PM and I wasn't even going WOT . . is that thing designed to read no higher than that? Weird.

Maybe he meant kph . .

dc