What Dual Springs do you HIGH rwhp FI cars run?
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05-24-2007, 05:39 PM
#9
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Originally Posted by VINCE
I am curious to what valvesprings you run?
Stock rockers and Comp oem lifters.
05-24-2007, 06:09 PM
#11
FormerVendor
We get springs from ET and set them up at around 185-195 on the seat in conjunction with comp stock replacement lifters, stock rocker arms, and 1,100+rwhp/7,500+rpm.
05-25-2007, 06:45 AM
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Originally Posted by engineermike
Crane 99893's set up at 155-160 lb on the seat, stock lifters.
Mike
Mike
05-25-2007, 07:24 AM
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Originally Posted by helicoil
How the springs hold up for 500 miles?
they were fine, I never had any valve float so they did what they were supposed to
Only reason I switched heads is because of the 6 bolt/cyl LSX block
05-25-2007, 10:10 AM
#20
The main reason I made this post was to help others understand what works. Each car is going to be different, but there should be information out there to get people started.
I run CC921's, but I think I need more seat pressure. I am around .045-.050 on the shim right now, but due to valvespring harmonics/resonance around 5200rpm to 5500rpm I think I need to shim some more or go with a much stronger spring.. I guess that is what you get when your car makes over 750rwhp on the wastegate spring..
I run CC921's, but I think I need more seat pressure. I am around .045-.050 on the shim right now, but due to valvespring harmonics/resonance around 5200rpm to 5500rpm I think I need to shim some more or go with a much stronger spring.. I guess that is what you get when your car makes over 750rwhp on the wastegate spring..