hit 157,158,160,155,154,155 starting from piston 1 (bumper to firewall). Are these decent numbers? I have about 50,000 miles on the car and it just dosn't seem right. What kind of numbers are you guys hitting?? should I replace the short block??
hit 157,158,160,155,154,155 starting from piston 1 (bumper to firewall). Are these decent numbers? I have about 50,000 miles on the car and it just dosn't seem right. What kind of numbers are you guys hitting?? should I replace the short block??
Those numbers are fine. The service manual lists 156psi (or more) standard, with a minumum of 128psi, and a difference between cylinders of 14psi or less.
Are you guys pumping 200 psi into the cylinders? Just wondernig b/c I haven't seen too many shops around here that pump that much air out of a compressor for a leak down check. Thanks.
Are you testing the compression on a cold start up? Your numbers seem to be indicating that, 155psi on average is a little low. Try making a few hot runs and then test again. To do a proper compression test the engine must be under normal operating conditions and temperature.
I did a compression check of a 97 TT with 133XXX miles at a local toyota dealer and it came out to 150 across all six cylind. How are those numbers??? Are these fair numbers??
I purchased the car with the following mods:
HKS Blowoff Valve
HKS Intake
HKS Super Dragger Exhaust
Blitz Turbo Timer
AVC-R Boost Controller
Super AFC Air/fuel Controller
Tanabe Downpipe
Trust Front Strut Tower Bar
Permanent TTC (true twin conversion)
Latest Tune done by Vishnu Motorsports – 370rwhp
Now my question is should I buy a boost gauge to make sure I that the boost doesnt spike or run to high?? The previous owner told me it was set at 16 PSI.