Thread: group K Big Block results
04-23-2006, 08:00 PM #1
group K Big Block results
I went out to day with My Dad... He runs a 2005 RXP He kicked my a$$ last year: WELL...
water temp 55* (RXP SAID SO)
400ft above sea leavel
5-8 mph wind.. small chops.. 1-5 inches
He ran 70.2
I ran 73.1
all the rest of the day Rpm 7220 ---7210-
I do not consider this killing rxp, but I did beat him! NO IF"S and or buts.
The ski is a 2002 gpr 1200 cc stock
I still need a good plate. I have a modded stock one. and jet works, carbon fiber reeds. pro-tec stuffers, aqua vane loader..
much more to come, to day I smile, I perpare for tomarrow,,,
04-23-2006, 08:02 PM #2
By the way: This Is EXACTLY WHAT HARRYS web page said I would run. the man knows his SH*T. Thank you Harry
04-23-2006, 08:12 PM #3
a kill is a kill...poor ol dad.....good job
04-23-2006, 08:25 PM #4
Add a plate and you're mid 70's+, then you can say you smoked him!
04-23-2006, 08:29 PM #5
That's my next move.. I have a R&D hitting my door monday afternoon. I think I'l send it to jim. or Island.. I'm still thinking about that. I don't know If I have the extra $$$ for jim's..
04-24-2006, 12:12 AM #6
- Join Date
- Aug 2005
- Greenville, S.C.
My GK-BB ran between 72-73 mph when I first got it back from Harry.
GroupK delivers what they advertise. I have put on an Advent CDI and a Riva SB 14/21 prop since I first put on the kit. The ski runs between 74-75mph now. Be sure that you go with pre-mix, I made the mistake of keeping the oil injection and I fried my #3 piston. I had to get a new piston and rings from Harry, but the cylinder was redone by Millenium for about $200. That sure beats having another cylinder bored and ported.
How is your holeshot compared to that RXP ??
04-24-2006, 04:21 AM #7
Having problems with hole shot. has a lag for a bout 2 seconds. I think all the premix got to the plugs. I was on 28:1 for break in. next tank I go to 32:1.. I was running 28:1 on the numbers posted.
04-24-2006, 04:27 AM #8
Originally Posted by great lakes gpr 1200
- Join Date
- Nov 2005
- All over
That's way I'm leaning towards one of those two issues... Hope the dealer tech and figure it out!!! It's the wife's stock ski with only 9.+ hours on it.
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