Thread: 2003 gp1390r efi
03-23-2010, 09:21 AM #1
2003 gp1390r efi
Ski is on the water and running STRONG! The Hull has about 160 hours on it. and I just got new rings about 10 hours ago and one cylinder re nicked 2 hours ago. the reeds have about 10 hours on them as well. Ski run Very Strong. I should be going to the mud Bug this year so you can see it there, or take it for a ride if you would like.
Best speed was 79.5 on a 1200 grate and 87 mm Nozzle with a 14/23 Impros prop at 7280 RPMs
list of mods:
Tim judge ported 87mm cylinders
Lowel matched R&D single Heads, 162,162,157
Wisco 87 mm Pistons
trued and welded crank
Ross Nemo stage 3 TBs
Ruis Reed system, with new Pedals
Riva EFI controller
R&D Powervalve clips
WaterWoody Modified 1300 Powervalves
Carbon Fiber Tunnel reinforcement
upgraded rideplate and pump shoe brackets
upgraded driveshaft hose
Riva Free Flow Exhaust
Opened Riva D-plate
Jet Works exhaust kit
1200 Water box
aftermarket handle bars
aftermarket seat cover
impros DF 14/23 very good prop
smooth cut R&D trim tabs
modified R&D ride plate
Modified Skegless ride plate
Riva 1200 intake grate
Sealed pump show
If you have any questions about the ski feel free to ask. It is a nice fast ski. that I have had a lot of fun with. I need to sell it though to fund other things.
I would like to get 4500 for it OBO.
Last edited by flyboy; 04-26-2010 at 08:21 AM.
03-23-2010, 03:30 PM #2
- Join Date
- Feb 2006
- Birmingham AL
03-23-2010, 04:22 PM #3
- Join Date
- May 2007
BEWARE BEWARE......of buying from Flyboy, I bought a ski a few years ago from him that supposedly was rebuilt with new pistons/rings and all compression was good just had some electrical work needed. I got the ski home to find that 2 out of the three pistons weren't even the right size pistons, these pistons were very very small for the cylinders and it was obvious that it was done on purpose. if it wasn't done on purpose then Flyboy has no right working on any motor of any kind.......BEWARE, BEWARE
I WOULD RIP THIS SKI APART BEFORE EVEN THINKING ABOUT BUYING IT FOR MORE THAN $10.00
Thanks for screwing me FLYboy
03-23-2010, 07:34 PM #4
Don't beware..don't beware..this is'nt the same ski as that GP that he did not build, nor did I. That was his cousin's ski..the GPR is just fine. hauls a$$$ and it was built by Tim Judge.
Someone is gonna get a good deal...no matter what asia says.
03-23-2010, 08:14 PM #5
03-23-2010, 08:54 PM #6
I can't..I am getting an FZR. I sold mine........
03-23-2010, 09:58 PM #7
I have ridden with most of the people on here. You all know what My ski Will do. I have been to the bug, and I have rode with many people. The cylinders have not been put back on yet, and everything is inspectable. I'm not trying to Do an injustice to anyone. Mods Please clean this thread up. I'm only trying to sell my ski that I have owned for the past 6 years.
Heck if you want I can sell it unassimbled and you can knock a little off the price.
03-29-2010, 09:33 PM #8
Ported 1300+ top end
If you have no takers and are willing to start parting it, I'm interested in the top end. (cyls, pistons, PVs heads) I'm looking for a good ported 1300 or larger top end. PM if interested.
03-30-2010, 10:19 AM #9
Thanks for the Offer Prism, But I need to sell the whole thing. I can't have parts laying around. unsold.
03-31-2010, 10:52 AM #10
- Join Date
- Jan 2010
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