So just ordered my Stillen SC

future370zzz · 06-22-2014, 12:42 PM

Quote:

Originally Posted by Z&I

A word of caution ...

Upgrading the Vortech Impeller Upgrade to SI trim and then combining it with the Stillen 9 lb pulley can give you too much boost for a stock 11:1 motor.

Thats what I did ... it produced 11.9 lbs of boost @ 6900 RPM ... 483 whp : 378 tq.

The motor didn't hold together very long ... blew on the first 1/4 mile pass.

Am now in the process of having the long block built ... an expen$$ive le$$on

What AFR were you tuned for? I'm assuming pretty aggressive and close to 12.0. What was the temp at the track during the run? What octane gas used?

When the temps heat up or heatsoak, detonation plus the location of the MAF sensors = no good.

Either run higher octane than when you dyno'd to prevent detonation or keep it out of WOT during hot conditions.

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