04-11-2008, 02:33 PM #1
Got the impeller back from Impros
It was a 12/18.5. They cleaned it up welded the diameter, got rid of the cavitation burns, and made it a 12/19. This combined with a new impeller housing, hopefully will get me to 70.
04-11-2008, 02:37 PM #2
04-11-2008, 02:37 PM #3
No more than 50 hopefully, I still want to be above 6900.
04-11-2008, 02:39 PM #4
that magic number 69 keeps coming up for some reason
04-11-2008, 02:40 PM #5
I have been running 69 for almost a year now.
04-11-2008, 02:42 PM #6
Might have tried a 12/18 I think she would like it.
04-11-2008, 02:43 PM #7
A 12/18 would have had me real close if not on the limiter. I have the stock CDI. I usually turned 6950-7010 with the 12/18.5.
04-11-2008, 02:45 PM #8
04-11-2008, 02:49 PM #9
I would need to a nasty motor mixing race gas like Big Raider to turn that high. He has a nasty Raider.
04-11-2008, 03:00 PM #10
Im sure you can turn 7100-7200 rpm with your porting.(on 93 octane)
I turn 7000 rpm with no porting.
What octane do you run at 7000 rpm I can run 87 but usually run 89
I ran as high as 7550-7560 with the pipes I think the pipes like 7400-7500 rpm I think the single pipe likes 7000-7200 rpm.
I could be wrong but I think im right.
Im telling you over 7500 rpm was awesome but I thought I was going to blow up the whole time I was on it.
Total rush mixed with race gas.
Just a thought
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