GPR Ride Plate Testing

[WFO]

hey how about a little love for the newcomer

fine, I will help you

-what ride plate do you have and list all of your mods

-have you looked up how to measure the plate angle ?

-rider size and weight ?

-type of riding conditions ?

[VOODOO]

hey how about a little love for the newcomer

Use the search function, we've told you most all you need to know. We've done everything but get under the ski and turn the wrench for you

[KaFF]

04 1300GPR long pump

Milled heads comp 155-150
D plate
free flow
800 grate
R&D Plate machined to 5%
2 washers on front
Riva EFI set at 5517
Trued hull
solas 13/19 prop. (thinking of switch to solas setback 14/22
also changing vains to acomodate new prop)

live in S.Florida
I run on the ocean 1-2 shop and lake flat

I ran the lake today 72.5 gps

need help on my set up to get to 78 or 80

[KaFF]

by the way Im 5'11 195lb

[WFO]

04 1300GPR long pump

Milled heads comp 155-150 upgrade head gasket to 05 newer if not already done so (better cylinder cooling)
D plate Riva ?
free flow will slow you down on top end a little
800 grate only good for flat water
R&D Plate machined to 5% don't know what this means ?
2 washers on front how thick and whats the plate angle ?
Riva EFI set at 5517
Trued hull
solas 13/19 prop. (thinking of switch to solas setback 14/22
also changing vains to acomodate new prop) whats your rpms ? 14/22 concord is going to be too big... even a 14/22 DF w/HO pump will be too big w/o more engine mods

live in S.Florida
I run on the ocean 1-2 shop and lake flat
note: these ball park figures are based on the current mods and rider size
-1-2' chop you need a 1200 grate and start the plate about .950-.920" w/ .050-.070" under the stock tabs
-flat water 800 grate and you can run more angle start 1.0-.950" and tabs flat to the hull
-note: if you ride superman, you may need to drop the tabs an additional .030-.050"

I ran the lake today 72.5 gps good speed for the mods you have

need help on my set up to get to 78 or 80 to get those speeds you will need a HO pump, Dynafly, reeds, keyway, and porting with everything that goes with those mods... and time spent at the water finding the correct prop pitch and handling set-up

-do a search on how the measure the ride plate angle
-you will need to grind the pump and nozzle, and the plate needs to be machined for pump clearance to get maximum angle
-do your adjustments with the 800 grate in flat water first... get as much angle as possible and ride the boat WOT to feel if it porpoises, if it does lower the rear of the plate a little at a time till the porpoise goes away. If you ride superman, you will need more under the tabs to keep porpoising under control
-when you add engine mods, you will have to start all over again with adjustments... figure for every 100-150 rpms and 1.5-2.0 mph you gain with mods, you will have to re-pitch the prop and re-adjust the handling

This is just an example of how much comes into play when tuning a a set-up for max speeds.
Do the research here on the forum... all the info is here in different places.
If you need further advise, start another thread or take to pms so we don't clutter up this thread

[KaFF]

ok I got some work to do.
I need to get an RPM gauge to start.

[wreckingball]

Here's the link to my plate mods.

http://www.greenhulk.net/showthread.php?t=165638

More testing to come once I have my motor and current changes finished.

[hotpotatoe]

Hi guys, sorry if this is a silly question, but which is the best ride plate to start with for my 05 gpr1300, i have both a stock and a r&d plate, which would be best to send for mods by JIM PERFORMANCE?

[Adam]

Send the R&D plate ,you wont regret it .

[Gprkid]

Does anybody have a riva or R&D ride plate preferably R&D I have an 01 GP1200r