b4c346

hi guys , last time i went to the track with lid only i went 13.33 at 104 with a 2.06 60 ft.since then i added a fuddle 3400 stall,mt drag radials and got the car dynotuned.went from 255 rwh to 282 rwh.gained 30 ft, lbs torque.did a 1/4 mile run on the dyno and went 12.66 at 108.went to the track and could only get a 12.88 at 104 with a 1.72 60 ft. does this seem right?is this a good time for what's in the car?the guy that dynoed the car said the exhaust was holding back some h.p..car is a 2001 b4c camaro a4 with 3.23's.your comments please.

NJSPDER

iTrader: (2)

i don't really trust the dyno quarter mile tests. the loading on the drive train is so much lower than an actual track run.
my suggestion would be to make more trips to the track and try different launches and tire pressures. see if flashing the TC gets you off the line any better than stalling it up and play around with the tire pressures to see what the most air you can get in them and still dead hook. more air = more trap speed

b4c346

thanks.i know he could not get any more timing in than the 23 it had because the hp readings were dropping off at 5300 rpm.well i pulled the plugs today and they were shot.bringing it back to him to put timing back in with the new plugs. he said due to the plugs being bad at 5300 rpm it was senseing this and wouldn't accept the 28 or 29 degrees he put in it.said i was loosing around 20 rwh.i'll find out wednesday.your suggestions is greatly appreciated