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Old 02-21-2014, 07:44 PM   #37
BullF-16
USAF retired! Thank God!
 
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Drives: 2011 1SS, 1LT red,1LT/RS SGM 98Z28
Join Date: Jul 2011
Location: North Texas
Posts: 2,793
Quote:
Originally Posted by dan0617 View Post
So you were at 11 psi and 715 RWHP on -6 projected tip plugs? Pretty good chance they were turning into glow plugs and caused detonation. I would have used at least a 7 heat range, if the meth shot was small and/or the fuel was less than 93 octane I would have used an 8.

Another thing to add for anyone reading......a forged motor won't last any longer or hold any more power than the stock motor if the plugs are too hot. It creates detonation (preignition to be exact) that timing retard by the computer's knock sensor cannot help.
Im pretty sure they were -6 plugs but i doubt projected tips. I did not ask Dallas Performance at the time. I know i was not charged for new plugs. So i was at 11 psi with meth on a D1sc with 65# FAST injectors that were at 88% duty cycle on the dyno tune. I asked if ID1000s were better and was told the meth would compensate. I had a big question mark on that remark so i take responsibility for my stupidity. I also beat the living crap out of the motor and now have a new HKE built LSX 427 that is stupid.
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