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Old 08-29-2012, 06:13 AM   #18
maxdmax

 
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Drives: 2010 Camaro SS/RS
Join Date: Nov 2008
Location: East KY
Posts: 756
Our cars are pretty close, same SC, same pulley, meth but I do have a blower CAM. I have always heard that for every 1000 feet change in DA, there is a .13 second change in quarter mile times. I run 10.9Xs @ 625 feet with 638RWHP and 601TQ, giving up 5,000 feet in altitude the difference of .65 would put my car around 11.55. I have 30 more HP and 4 more lbs. of torque. When I took my car to be tuned after going to the 3.2 pulley I made 7 psi, we discovered slip on the back pulley on the SC. The dyno graph did not show this since it was a smooth even loss across the entire pull. I got a rear cog drive kit and JRE Super tensioner, when I went back I made 9.5 psi. My car has always shown lower boost levels than most. My guess is you are already near your goal and have some belt slip.

My Current setup:
Stock block/Stock/Heads/ etc
CAM G5XB
TVS2300 running 3.2 pulley on 9.5 psi boost (Track is at 625ft above sea level) - NAPA belt, JRE super tensioner and SC rear cog drive, belt doesn't appear to have any slip
ARH 1 7/8 longtubes W/ cat delete
Magnaflow Exhaust
Alkey control Meth kit
Linelock
18" C6 Z06 rear W/ MT drag radials (295's) - running 20" Stock wheels in the front.
60 foot times low 1.7s
ET 10.9X
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LPE 417 - TVS2300 787 RWHP 759 Torque - Built by WWW.KYSPEED.COM
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