Just wanted to update with a log if anyone wants to see data on the S5. Hits 20psi at about 4000rpm And 30psi just about 4900 and Rock solid till 7300. About 17* at 7300. According to Nishan this should be 500whp as I'm practically out of fuel with 2000cc of meth.
Yes I agree. Meth injection already melted one of my engines due to failure. But it's a Bitch up in Quebec there is no ethanol so that's a no go. But there are other options. I'd like to Max out this S5 before changing setup.
If anyone has info on which valve spring works with stock Valvetrain let me know. I've heard of the Crower 65lbs springs with gm retainers. Not sure if it actually works.