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Old 09-14-2019, 08:39 PM   #1
Dave D.
NASIOC Supporter
Member#: 130990
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Menzel Lake, WA
06 Red Ltd.Wagon
Dom 1.5xtr JJ tuned

Default Questions on shifting at track

One of these days I'd like to take my toy to the strip. After an E-85 tune and fueling modifications, my car makes about 50whp/70wtq than my original tune.

Running through a jdm non-dccd six speed (which means shifting into 3rd at about 53mph), the car on gasoline put down 0-60 times of between 3.6-3.7 seconds. The new setup runs about a 3.9. The car indeed has more power as the 50-100 time has decreased from 5.6 seconds to 4.6 seconds.

The car is simply spinning the tires, both on the initial clutch let-out and again on the 1-2 shift. Tires are Michelin Pilot SS, 225-ZR17's all around. Typically I rev the car to about 5k before letting the clutch out. I do not dump the clutch, yet this all seems too much in light of the extra power.

I don't really launch the car much, so I'm asking for someone with experience to chime in, versus trying a bunch of trial and error. Thanks in advance!
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Old 09-17-2019, 02:21 PM   #2
Patrick Olsen
Scooby Guru
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
1997 Legacy 2.5GT
1996 Impreza coupe


For drag advice I'd advise asking in the Proven Power Bragging forum, as there's more drag racing discussion there.
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