2005 Evo MR with GSC S1 cams
I’m noticing the S1’s give a very trademark curve on the Evo 8’s. Nice flat torque and sustained horsepower up top. I also notice they hate timing down low. Last four cars I have tuned with them have to run 2-3 less degrees at peak torque than others.
Nice running Evo overall and good power for 21.5 psi and a MBC.
301whp / 275 wtq
Last two pulls back to back (1 minute apart with no cool-down):
2005 Evo MR
Mods:
ARP head studs
GSC S1 cams
HKS cam gears @ +1/-5
Walbro 255 fuel pump
785cc UR injectors
TBE no cat
Ported Exhaust Manifold
Megan Tubular 02 housing
HP LICP
Injen Intake + MAF pipe(open filter)
Injen UICP
Nisei street FMIC
Forge MBC @ 21.5 psi
Sun Auto Hyperforce
GST Custom Dyno tune
91 octane
