Thinking of going with the PSI 1511's with TI retainers.
I'm running the GM TI intakes and GM Sodium Filled/Hollow exhaust with lash caps, and also with the stock GM rockers w harland sharp fulcrums. Also running morel lifters. 7.650 3/8 stem 5/16 tip pushrods.
My cam is .670/.650 lift.
If I shim to an installed height of 1.825 I get a seat pressure of 110 and an open pressure of 367 for the intake and 360 for exhaust. Is this seat pressure enough?
What would the safest minimum seat pressure you'd need for a 'light' valvetrain and 7k rpm?
Can someone give me a sanity check?
Endurance Spring: Single- Beehive LS1 & LS6 (O.D.: 1.290") (I.D. Outer: .630") (I.D. Middle: N/A) (I.D. Inner: N/A) (Seat Pressure: 120lbs.@1.800") (Open Pressure: 360lbs.@1.175") (Rate Lb./In.: 384) (Retainer Step: .000") (Max Lift: .625") (Coil Bind: 1.100")
seems to have a much better price on these springs/retainers than other sponsors. Am I missing something?