High RPM & blown motor, tiwce!! HELP
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OK I have toasted my second crank. This last time I went to a 3.6 oil pump & a cross drilled crank. I only run up to about 7500 rpm. Also had case line bored and did the oil bypass mod. The motor is a 2.4 w 9.1 CR & S cams in a 72 911 w stock front oil cooler. Nothing outragous. Now I am told to shim the pressure regulator. Both motors has less that 3k miles. HELP, ANY $UGESTION$?
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[quote]Originally posted by KeithC2Turto:
<strong>OK I have toasted my second crank. This last time I went to a 3.6 oil pump & a cross drilled crank. I only run up to about 7500 rpm. Also had case line bored and did the oil bypass mod. The motor is a 2.4 w 9.1 CR & S cams in a 72 911 w stock front oil cooler. Nothing outragous. Now I am told to shim the pressure regulator. Both motors has less that 3k miles. HELP, ANY $UGESTION$?</strong><hr></blockquote>
Hi Keith:
Very sorry to hear of your troubles, Sir........
I have many suggestions.
As this is a very complex issue and has a layered solution, please call me for some help. Its far too much for e-mail as we need a telephone dialog to address everything,...... : )
<strong>OK I have toasted my second crank. This last time I went to a 3.6 oil pump & a cross drilled crank. I only run up to about 7500 rpm. Also had case line bored and did the oil bypass mod. The motor is a 2.4 w 9.1 CR & S cams in a 72 911 w stock front oil cooler. Nothing outragous. Now I am told to shim the pressure regulator. Both motors has less that 3k miles. HELP, ANY $UGESTION$?</strong><hr></blockquote>
Hi Keith:
Very sorry to hear of your troubles, Sir........
![Frown](https://rennlist.com/forums/images/smilies/frown.gif)
As this is a very complex issue and has a layered solution, please call me for some help. Its far too much for e-mail as we need a telephone dialog to address everything,...... : )