Quote:
Originally Posted by acammer
I think, given your manifold, you should be looking at more spring so you can run some more rpm. I don't remember if you swapped to LS3 hollow stem valves, but if not, even more spring pressure would be warranted to keep those heavier L99 valves under control. A PSI 1513 would let you shift up around 7600 reliably...
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You might have me confused with someone. I'm all stock LS3 except for cam. I shift at 7200rpm. Factory lifters, LS3 valves, stock intake, etc. I think I'm just going to go with the BTR springs. They are a bit cheaper since I have your guys' military discount. The F-35 cam is similar to the SS4 and its my understanding you guys usually run the BTRs with the SS4. The .660" PAC springs TSP offers for their kits have like 20lbs more on open and a lot more coil bind clearance which may or may not be a good thing due to spring surge.
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2011 IOM 2SS/RS LS3 M6- Injen CAI, TSP 1 7/8” headers, PTB, Hurst short throw, Corsa catback exhaust, 20" TSW Nurburgrings, BMR lower control arms, BMR tunnel brace, Hotchkis lowering springs. 3660lbs. Tuned by me (sold)
2010 RJT 1SS/RS LS3 M6- CAI, TSP 2” headers, TSP F-35 cam, PTB, Hurst short throw, Dronemaster catback, BMR lowering springs, Kirkey seats, 20”/18” Weld Belmonts, 3550lbs.
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