Originally posted by DemonSVT:
As for high cfm flow and dynamic compression on pump gas. PROPER TUNING!



Exactly. Jon at HKS(not sure his last name), just hit 300whp on 91 octane(!!) on a totally stock Focus block with stock rods, pistons and compression(9:5:1). Basically he's got a huge turbo and intercooler and cams and a trick intake and exhaust manifold. He used stand alone engine managment and ran a 10.3.1 airfuel ratio. He did say he doesn't think the engine will last long at that power level, but he did run 250whp for two years.

The OEMs typically tune conservatively for maximum durability so when you get the car on a dyno with a good tuner you can get some good gains.

2000 Rio Red I4 Cougar 200whp & 210wtq at 9psi 254whp & 276wtq with NX 35shot WRX TD04 Turbo, Cut Short Shifter, Strut Tower Bar, 17" ZN Wheels, Roush Springs, Starion Intercooler, NX 35 shot, HKS SS BOV, Full 3" exhaust,StreetFlight Chip