As you all know, and by jasons reply and all, i blew the motor from getting in to boost and it started detonating, but the thing is, what exactly happened?
Its a Stock ECU, with a Stock Turbo Swap, on 93 octane, stock boost, and 22 degrees of timing.
What went wrong?
I understand I have a higher compression ratio compared to a turbo motor, so the threshold for detonation is alot more likely, but why would getting in to boost for 20 seconds blow my motor, even though the charge air temps are a ton higher and get even higher as you stay in to boost, I dont think it should detonate at such low boost pressure with 93 fuel.
If so then why did a link I read a while back say "300zx Turbos would frequently overheat there oil racing around a strip" which is a reason to get an oil cooler. That statement almost clearly states that when racing around a track, your basically pushing the motor, and of course getting in and out of boost, increaseing charge temps, so why dont those motors blow.
I also understand that I do have a 200,000 mile long block, and there could be an infinite amount of variables, but I know something went wrong, because if the motor cant take STOCK boost for 20 seconds, then im sure as HELL it wont take 10 PSI of boost for the same amount of time.
Any opinions without any hateful bashing? :?
Compression Test:
Cylinders, 1, 3, 4, 5, 6 got 160+ to 180+ PSI.
Cylinder 2 got 40PSI, wet test brought it up to 70PSI.
2 electrodes broke on 2 cylinders, one being the cylinder thats dead and the other being a still healthy cylinder.
Video taken of when motor blew.
Notice the motor shutting off after the run at the end of the video.
http://video.google.com/videoplay?do...95553175&hl=en
Its a Stock ECU, with a Stock Turbo Swap, on 93 octane, stock boost, and 22 degrees of timing.
What went wrong?
I understand I have a higher compression ratio compared to a turbo motor, so the threshold for detonation is alot more likely, but why would getting in to boost for 20 seconds blow my motor, even though the charge air temps are a ton higher and get even higher as you stay in to boost, I dont think it should detonate at such low boost pressure with 93 fuel.
If so then why did a link I read a while back say "300zx Turbos would frequently overheat there oil racing around a strip" which is a reason to get an oil cooler. That statement almost clearly states that when racing around a track, your basically pushing the motor, and of course getting in and out of boost, increaseing charge temps, so why dont those motors blow.
I also understand that I do have a 200,000 mile long block, and there could be an infinite amount of variables, but I know something went wrong, because if the motor cant take STOCK boost for 20 seconds, then im sure as HELL it wont take 10 PSI of boost for the same amount of time.
Any opinions without any hateful bashing? :?
Compression Test:
Cylinders, 1, 3, 4, 5, 6 got 160+ to 180+ PSI.
Cylinder 2 got 40PSI, wet test brought it up to 70PSI.
2 electrodes broke on 2 cylinders, one being the cylinder thats dead and the other being a still healthy cylinder.
Video taken of when motor blew.
Notice the motor shutting off after the run at the end of the video.
http://video.google.com/videoplay?do...95553175&hl=en
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