Hi,

I have some ITR valve springs on my boosted B18C1 for 5 years now at 16-18psi 9100rpm fuel cut and managed with AEM EMS. I think I should go with stronger springs but I would like to know what is the seating pressure of OEM ITR springs? I'm running Skunk2 stage1 cams. So what is the stock ITR spings pressure at seat and at peak so I can compare with skunks2 springs...

Thanks for your help

 

anyone?

 

I looked at the vavle train specs from acura and it doesnt specify pressure. The only specs for springs are height...

 

https://honda-tech.com/forums/showth...ht=test+spring

 

Thanks you

Can the seat pressure of 50lbs of the tuner series from skunk2 is enough for to keep the valve closed to prevent back pressure from coming back in from the exaust valves at 20psi?