Thread: Boost Spike
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Old 05-28-2013, 11:34 PM   #9
PMJ
Seeking 9s on M6...
 
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Drives: 2012 2SS/RS LS3 aka "BlackWidow"
Join Date: May 2012
Location: Houston, TX
Posts: 397
So looking back at old logs, i've had this "problem" since day 1. The first shot shows a tuning log right after the whipple install on a stock motor (4" pulley). No AFR gauge at the time.

The second snap is from a texas mile run and shows a double spike! Only one of those i found. This was while running race gas. I had a 3.75" pulley getting a little over 11psi. Street tires.

The 3rd is at the track w/drag radials. Also getting 11psi. This should have been my best run ever, but no doubt the knock made me lose a few hundredths (was a better launch than my all time best that same day).

Last was another run at the texas mile. This was going into fifth gear...as you can see i had trouble getting there , i'm hoping this was resolved with my upgraded clutch, but i could never shift cleanly to 5th at 145 mph... anyway, this one surprises me the most because the blower had spooled down prior to getting in gear, but still see the spike.

Am I the only one experiencing this w/a Whipple or PD blower? Or am i the only one that keeps all his logs.

These snaps are all before Meth and engine mods.

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