Took the summit out. mods are....
4g63
evo3 16g
3" intake
3" exhaust with 3" cat
2g mas
FMIC
660s
SAFC
cyclone intake
stock clutch
wieght without me=2260 pounds
205-50-15 hankook tires @ 15psi.....cheapest 15"ers I could get
I started out 18psi, 93oct. 13.1@112. 60' times were all 2.2s, some 2.3s. I couldn't seem to grip any harder. My method of traction was lauching at 3k and short shifting 1st and 2nd. 3rd still spun a little, but enough to get acceleration.
I was getting 19counts of knock, 16degrees of timing, and my AF ratio was 10.x on the dyno.
I put in a gallon of 110oct. Basically eliminated knock and added timing. Ran few more times. Turned the boost up to 20psi.
ran consistant 12.9s. slowest time was a 13.3 missing a gear.
best of the day was 12.90@115.9 and 12.94@116.4