So much for killer heads: JPR S2 flow numbers
09-26-2004, 08:58 PM
#41
Originally Posted by 9T9BlueTA
Dont worry you are not alone:
Shortblock bad at 25,000 miles
5 cams 6th going in
3rd set of heads
2nd set of headers (TTS to Kooks, I like the Kooks)
car not running enough to wear tires down lol.
second airlid here also
3rd Throttle body
4th clutch (stock and 2 Rams that went bad) sponsor sent me wrong hydraulics) now have spec 3
3rd rear suspension setup.
had lifters fail 3 times
3 sets of rotors and pads that all warper (use cheapos now and just replace them)
3rd Oil pump
Dont you love this hobby
Shortblock bad at 25,000 miles
5 cams 6th going in
3rd set of heads
2nd set of headers (TTS to Kooks, I like the Kooks)
car not running enough to wear tires down lol.
second airlid here also
3rd Throttle body
4th clutch (stock and 2 Rams that went bad) sponsor sent me wrong hydraulics) now have spec 3
3rd rear suspension setup.
had lifters fail 3 times
3 sets of rotors and pads that all warper (use cheapos now and just replace them)
3rd Oil pump
Dont you love this hobby
10-20-2004, 08:23 AM
#46
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Well interesting update on this, the person who I sold the JPR heads to, for lets just call it a very deep discount, had them flowed locally and one side flowed 305cfm, the other 303cfm. I dont have the exact breakdown, but that is obviously a lot better than the numbers from ARE's flowbench. Its not the 319cfm advertised, but they flow pretty good it seems after all. So for what its worth, looks like my heads were not as bad as originally thought.
I have definately no complaints about having replaced them with the rapid motorsports stage 3 LS6 heads though -- I ran the car at the crappy, high elelvation local track three passes this past weekend, where my previous best with the JPR motor was 11.91 @ 117 mph. With the rapid motor I ran 11.25 @ 123 MPH, which should be good for some 10's (fingers crossed) at cecil or atco, since I have found there is 4-5 tenths and mph difference from this track to the good tracks.
I have definately no complaints about having replaced them with the rapid motorsports stage 3 LS6 heads though -- I ran the car at the crappy, high elelvation local track three passes this past weekend, where my previous best with the JPR motor was 11.91 @ 117 mph. With the rapid motor I ran 11.25 @ 123 MPH, which should be good for some 10's (fingers crossed) at cecil or atco, since I have found there is 4-5 tenths and mph difference from this track to the good tracks.
