advice on supercharged ST170 engine build?
07-10-2009, 03:24 PM
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advice on supercharged ST170 engine build?
I've been running the PowerWorks kit on my ST170 for a while with great success. I'm now needing to rebuild the engine. My goal is 250-300 whp with bulletproof reliability. I'll be fitting an overdrive crank pulley for more boost. I'll probably use a basic pistons/rods set up. I'm also interested in upgrading my valvetrain with cams and valve springs etc. Can anyone suggest cams to go with a supercharger? Should I keep the VVT? Any advice would be greatly appreciated!
07-10-2009, 07:42 PM
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07-10-2009, 09:09 PM
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Cam wise - i'm running around 270 degree duration with around 11mm lift. CAT Cams made my cams to my specs, however, i'm revving to 9000rpm as i've also built a short ratio gearbox...
I've also found the powerworks inlet manifold to be VERY restrictive, i found an improvement of over 30% in the flow figures by careful porting.
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170, build, engine, focus, ford, gain, kit, power, sierra, st, st170, supercharge, supercharged, supercharger, zetec
