Thread: blower w troubles

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Originally Posted by kipster40

i did a compression check and all cyl. have 100 psi would that still show ring problems

100 lbs is not enough, sounds like to me the motor has gotten hot one time to many and collapsed the rings.

Isn't the pressure you'll read a function of the compression ratio you're running as well as cam timing? Assuming the rings are good, what pressure would be expected on a 7:1 blower motor with a healthy cam?

Regards, Mark

Originally Posted by MAW

Isn't the pressure you'll read a function of the compression ratio you're running as well as cam timing? Assuming the rings are good, what pressure would be expected on a 7:1 blower motor with a healthy cam?

Regards, Mark

yes this was what i was thinking to he did not give us much on the build 100 psi may be a bit low but who knows what cr he hase or what cam lsa is . 100 psi may be all it hase?

Originally Posted by pat mccarthy

yes this was what i was thinking to he did not give us much on the build 100 psi may be a bit low but who knows what cr he hase or what cam lsa is . 100 psi may be all it hase?

the ? is not how much comp. the motor has, its how much comp. will the rings hold, you do a leak down test and you rings want hold 100 lbs. of air then you dont have much. he has boost getting in the pan and the only way its gonna get there is its by-passing something.