alright fellas ive got an sir2 b16a. i currently have itr cams in it with portflow inner springs, stock sir2 outer springs and skunk ti retainers. i was wondering if i could continue to use the same setup with a set of skunk stage 2 cams. ive been reving it to 9000rpm on the itr cams but with the skunks id like to take it to 9500. should i be ok or will i need some outer springs aswell? also. if any of you have a better cam choice im all ears. motor is stock 10.4 bottem end. stated head mods. jg proflow header with race pipe, skunk intake manifold and str 68mm TB. car will more than likely be on a direct port dry 100 shot once i get situated on a new set of cams. thanks for hearing me out. this question might have been asked in the past but i couldnt find an exact answer.

 

some help here guys?

 

youll need new springs...the stock outer springs wont take that lift

 

thanks for the input. anyone else?

 

how about bc4's?

 

If u are scared of dropping valves, don't raise rpm to point where power is not being made; even with upgraded valve springs. O yeah I am planning to swap out my stock b16 cams for blox stage 2 cams and am planning to use rocket motorsports SL dual valvesprings. It has slightly more seat pressure than stock, 55lbs when installed and not 75lbs+. I plan to drive it daily so keeping at stock specs is a must.