First time at the track 1/8th mile
08-05-2009, 08:14 PM
#1
First time at the track 1/8th mile At Old Dominion Raceway today, at least 90 degrees out. Car is hard top power nothing, has CAI, ported MAF, Trifecta tune, B&M shifter, Bilstein shocks, underdrive pulley, LTs, ORY, new factory clutch with 7k all highway miles, magnaflow catback, engine has about 107k on it and has 0psi oil pressure at warm idle, about 40 everywhere else. Full weight including jack and spare tire, half tank of gas, pretty much new Sumikomo 245/50s on salad shooters.
Run 1: 2.282 60', 6.034 330', 9.069 1/8 at 81.66mph bogging off the line
Run 2: 2.344 60', 6.174 330', 9.238 1/8 at 80.94mph. clutch slipping off the line
Run 3: 2.460 60', 6.255 330', 9.316 1/8 at 81.19mph spinning off the line
Parked it for about an hour to let the clutch cool, it was slipping really bad by run 3.
Run 4: 2.462 60', 6.308 330', 9.373 1/8 at 80.92mph spinning then clutch slipping
I was losing clutch petal pressure if I hold the clutch in for a few seconds, like staging or waiting in line. By the second run it got to the point that when Id shift into 2nd or 3rd, my rpms would still be dropping after my foot was off the clutch. Im thinking clutch master cylinder? Or slave?
Run 1: 2.282 60', 6.034 330', 9.069 1/8 at 81.66mph bogging off the line
Run 2: 2.344 60', 6.174 330', 9.238 1/8 at 80.94mph. clutch slipping off the line
Run 3: 2.460 60', 6.255 330', 9.316 1/8 at 81.19mph spinning off the line
Parked it for about an hour to let the clutch cool, it was slipping really bad by run 3.
Run 4: 2.462 60', 6.308 330', 9.373 1/8 at 80.92mph spinning then clutch slipping
I was losing clutch petal pressure if I hold the clutch in for a few seconds, like staging or waiting in line. By the second run it got to the point that when Id shift into 2nd or 3rd, my rpms would still be dropping after my foot was off the clutch. Im thinking clutch master cylinder? Or slave?
