Compression Numbers
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Compression Numbers
Did a compression check on my car with a standard autozone checker. S4 Turbo with 169,000 on the OD. Both Trailing plugs were removed. And tested from the trailing.
Front rotor:
95 psi hot Throttle wide open
85psi hot Throttle closed
Rear rotor:
85 psi hot Throttle wide open
75 psi hot Throttle closed
As I understand it, mazda specs indicate that a variance between rotors of no more than 15psi is ok. What worries me is the 75psi closed
Any opinions?
Front rotor:
95 psi hot Throttle wide open
85psi hot Throttle closed
Rear rotor:
85 psi hot Throttle wide open
75 psi hot Throttle closed
As I understand it, mazda specs indicate that a variance between rotors of no more than 15psi is ok. What worries me is the 75psi closed
Any opinions?
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Originally posted by casio
how did you get psi readings for each face? i thought psi gauges required several turnovers for a single reading.
how did you get psi readings for each face? i thought psi gauges required several turnovers for a single reading.
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#8
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Re: Compression Numbers
Originally posted by TPDNRX7
Did a compression check on my car with a standard autozone checker. S4 Turbo with 169,000 on the OD. Both Trailing plugs were removed. And tested from the trailing.
Front rotor:
95 psi hot Throttle wide open
Rear rotor:
85 psi hot Throttle wide open
As I understand it, mazda specs indicate that a variance between rotors of no more than 15psi is ok. What worries me is the 75psi closed
Any opinions?
Did a compression check on my car with a standard autozone checker. S4 Turbo with 169,000 on the OD. Both Trailing plugs were removed. And tested from the trailing.
Front rotor:
95 psi hot Throttle wide open
Rear rotor:
85 psi hot Throttle wide open
As I understand it, mazda specs indicate that a variance between rotors of no more than 15psi is ok. What worries me is the 75psi closed
Any opinions?
I've edited out the closed throttle numbers, cause they don't mean anything.
If this is a stock motor running stock boost, it still have several years left on it. If you're running more boost and significantly more power, I would highly recommend getting a rebuild within the next year or two, if you're thinking of keeping the vehicle.
-Ted
-Ted
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