Stiffer springs will allow you to run a higher redline safely and help prevent valve float at the higher RPM's. The beehive's are good for 9500rpm and 30psi of boost, the single springs are good for 8200 rpm and 20psi of boost.
Quote:
Originally Posted by Walla Walla
what is to be expected of this upgrade? (hp gain, reliability, better response?) i'm trying to understand the + value of valve spring! and what will give the difference between those 2 sets?
|