My head guy just called and told me there is too much spring pressure, almost 70lbs, when the sheet says just over 50 lbs. Anyone else have issues with this?

D16Y8 head
ST .5mm bigger In/Ex Valves - cut for 3 angles
ST Springs
ST Retainers

I bought the package through Earl and have seen it installed on a few other members, but not hear any bad feeback? Should I be worried?



Modified by ELSpool at 4:47 PM 4/13/2005

 

**** thats alot more presure does anyone else have these springs?

 

maybe that your head guy have a wrong scale ?

 

i use the supertech springs in my y8 head, and i did not have that problem. i forget what the pressure was, but it was not 70.

 

I spoke with ST, they said I'm fine with that pressure. But I'm getting close to coil bing with the Zex cam. Is there a rule that you should not go to close to the max bound of a spring? Right now my coil bind is 1.360 and my height is 1.85 which leaves me with .490 (spring height minus CB)

Now the Zex cam is .455 lift, is the .35 difference too close?

 

anyone?

 

Which cam are you installing? I have the Supertech set up from Earl as well. I also have Zex's new 59500 cam(sorry dont have the specs right now) but I know it has alot of lift to it but is still on the 111 LSA, same as the 59300 cam.

 

yea i have the same setup and dont have bind.

im going to call my engine builder today and see if he remembers what the pressure and bind was.

 

Also ask for Spring height too, and not whats on the spec sheet..

 

damn just keep your stock spring like last summer ? it was working great !

 

Don't trust them over stock redline.

 

hey yellowturbo, how's the car running