Quote:
Originally Posted by TheRealSy90
I guess my only thought is there's debate wether the stiffer springs are better or actually too stiff and might cause abnormal wear. Who knows.
As far as rpm range i'd probably add a thousand to each of those lol. Hell a det is fine at 7,5.
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I didn't go super stiff. I think stock springs are like 65lbs and these are 90lbs? It's not like I'm running the 123lb supertechs or something.
And sorry, but a stock P12 starts to float at 8200rpm according to MotoIQ.
http://www.motoiq.com/MagazineArticl...stoppable.aspx
I imagine a P11 probably starts to float 250-500rpm earlier with the heavier valves. I wouldn't take either to 9k without aftermarket springs.
Hey Busta, any more progress on your 7163 build? Not much info out there. As far as I know, you're the only one in Canada with one on an SR, Def and I are the only ones in America and then there are two in Australia.