MyGoatBites

iTrader: (1)

I switched to them last weekend and haven't drove the car much. They do seem really noisy in comaprison to the comp single spring that I had before. They also seem more noisy at certain rpm points than others. Any feedback on this? Is it pretty normal?

PREDATOR-Z

Well more seat pressures slam the valve harder, I noticed the same switching from 918's to dual platinums.

Joel_SS

iTrader: (8)

I have Isky dual springs and my motor sounds like a sewing machine!

orangeapeel

iTrader: (18)

I have 918's and it still sounds like a sewing machine...Predator I thought that you were still running the 918's actually. Why the switch to duals?

PREDATOR-Z

I used to run 918's on my .581 lift XE-R (Stealth II).
When I got PRC heads, Platinum duals came with.
I ran 918's shimmed on my ex 99 TA with a custom .610 lift cam.
I also will run 918's again on my XE cam for the vette.

I love 918's, IMO they are one of the best spring out there.

LS1powerhouse02

iTrader: (9)

most aftermarket springs,(especially duals) make a lot of valvetrain noise. It nothing to worry about.