I know a car that tried 25lbs with a 64 turbo, head gasket blown plus intake gasket was mangled.
I was a passenger when it blew, double pumper, stock lines. 96lb injectors, F.A.S.T ECU. Car did 25lbs in 3 gears until the HG blew. Car has been E85 for a year, first time really hammering it with the new turbo from Patrick.
I think the timing was 22 across the board. The gasket blew not long after the 2-3 shift so the rpm was not an issue. I think it was tuned for 11.2I would be interested to see the timing/RPM being run at the time of the failure and the A/F ratio.
Bryan
Everything checked and put back together, he is waiting for triple digit temperatures to go away before he takes it out again.I just re read and saw that the intake gasket was blown as well...Cam/crank sensor checked yet? Valve cover been puled to see if a rocker/spring broke? Timing chain checked?
Bryan
You keep playing at 25 psi and you may just bend that HG again.I run 22 psi all the time, and play around at 25 psi periodically. Have been for a few years. spark advance in the 21 to 23 degree range.
its loads of fun set up like this, so I don't need to push the limits. properly fueled, this boost level is very safe in my opinion.
Bob
krom said:You keep playing at 25 psi and you may just bend that HG again.
I run 22 psi all the time, and play around at 25 psi periodically. Have been for a few years..............Bob
When did this happen? I was just up there couple of weeks ago and talked to him yesterday. Weird!