Clemson Sports Car Club

B18b1
CP Pistons 12.5
Eagle Rods
Stock Cam (previous owner had a vtec head)
Injen Intake
Header -unknown brand
2.5" Apex World Sport Exhaust
93 octane
Crome Gold

TDC Tuned


For those of you who are wondering. 12.5:1 compression generally doesn't mean anything if you don't have the cams to match the setup. This is proof of that.


"Street Tune vs TDC Tuned"



The spark plugs that were in the car.


What you see is a heavy mixture of pre-detonation and stupid lean a/f ratios as evident by the condition of the spark plugs and the choppiness of street tune base run.

This setup was running a street tune before it came to us. My stand on street tuning is, if you don't have a wideband then don't do it or you can easily destroy an engine over time. Also, if you don't have a reliable knock sensor then don't push the envelope on ignition. It's just not worth the risk.

lol.
how much timing did you have to pull out of that setup?

been a while since i've seen an LS dyno chart, i forgot how bad the power falls up top with those horrible stock cams.

at least he can drive it now without melting a piston until he goes back to an ls-vtec or swaps some crowers in.

^ Agree. Probably around 2 degrees.