Thread: Question RE Dynafly on GPR 1200
03-20-2008, 06:22 PM #1
Question RE Dynafly on GPR 1200
Just a quick one for a friend...
Will a standard GRP1200 with VF III reeds and ride plate push a 14/20 Dynafly and 05 pump?
03-20-2008, 06:50 PM #2
Probably not real well, put a head on it as well along with F/A's and re-jet the carbs.
03-20-2008, 07:29 PM #3
Mine did w/ head reeds and plate.
03-20-2008, 07:37 PM #4
03-20-2008, 07:40 PM #5
03-20-2008, 08:21 PM #6
Daughters 01 unported 1200 pushes a 14-22DF in an 05 pump to 75mph @ 7200.
VF3s, 135 PSI, rejetted carbs with F/As, 1200 grate, FF plate, no timing.
It can do it well if you pay attention to all the details and follow all the advice regarding pump shoes and reinforcements.
03-20-2008, 08:21 PM #7
Last edited by Duke; 03-20-2008 at 08:25 PM.
03-21-2008, 01:12 AM #8
I ran 150 PSI milled OEM head, Rejetted carbs, Newer style 1300 reeds with stuffers, FF, Jims plate, stepped sponsons, *800 grate and lots of trial and error with tuning the plate and tabs got 75 out of mine turning the Dynafly.
* 800 grate Not recomended too many accidents.
03-21-2008, 01:18 AM #9
Thanks guys... thats some positive news.. thats actually better then I would have thought with a 1200 motor, we might get this thing moving yet
03-21-2008, 01:20 AM #10
RX951 and Spud had their unported 1200's up past 78mph lots of tuning and tweaking they were turning 14/24's it was amazing.
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