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Compression tested today...

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Old May 1, 2007 | 01:52 PM
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TehMonkay
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Compression tested today...
109psi up front 11 in rear, 64k on mazda remanned S4 NA. Looks good


Anyone else got anything with higher mileage with really good compression.
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Old May 1, 2007 | 02:48 PM
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11psi in the rear? thats good?
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Old May 1, 2007 | 02:53 PM
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lol!! maybe he means 111?
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Old May 1, 2007 | 04:35 PM
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That better be a typo
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Old May 1, 2007 | 06:05 PM
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Looking good! Haha.
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Old May 1, 2007 | 09:02 PM
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mine is 100 up front and 0 in the rear
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Old May 1, 2007 | 09:51 PM
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Eh, i meant 110
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Old May 1, 2007 | 10:51 PM
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my engine is in pieces so I guess I have 0 compression on both rotors

It died of a blown rear apex seal, so probably almost no compression in the rear at 110K.
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Old May 1, 2007 | 11:27 PM
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My last engine died with 100psi, however I had rust in the tank and the fuel kept cutting out so i think that had alot to do with it.
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Old May 2, 2007 | 12:48 AM
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175K miles 90 psi on front and 85 psi on rear
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Old May 2, 2007 | 02:01 AM
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Before I tore it down, I got 102front, 100rear..... 156k miles. Was pullin hard when I tore it down...
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Old May 2, 2007 | 03:15 AM
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not even sure what mine has cause i couldnt seem to get a correct reading....

but i do know i have either a blown or stuck side seal...
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Old May 27, 2009 | 03:27 PM
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so what is the psi supose to be at on an s4 n/a 9.4/1 ratio

from what i have read 85psi

any ideas
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Old May 27, 2009 | 03:55 PM
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Was that a hot or cold compression test?
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Old May 27, 2009 | 04:04 PM
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202k miles - 90 psi front and rear
82k miles - 30 psi F 0 psi R
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