Thread: Back from the dyno, out of timing and boost.

Originally Posted by coolone

130's seem to be a bit much for that lift, no?
XP 212/224 .325/.335 116
x1.65 = .536/.552 Lift

Is there a lift height which prescribes certain spring rates? Not being a jerk, just a question I've looked for and not found definitive answers for, lol

It's almost impossible to have too much spring. There are a lot of factors that need to be considered when picking a spring. Overall cam design, rpm, and boost level will all have an impact on 3800's when it comes to float.