NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   3rd Generation Specific (https://www.nopistons.com/3rd-generation-specific-18/)
-   -   Compression test (https://www.nopistons.com/3rd-generation-specific-18/compression-test-54698/)

Dueled 11-04-2005 02:51 PM

Newbie question.



What kind of numbers am i looking for?



The only thing I know is consistency, 9/9/9

Dueled 11-04-2005 04:13 PM

Don't see an edit



but here are the results i got



Was done by maztech/fmc



Front Rotor: 8.7/8.8/8.8 at 227 cranking rpm (125 psi)

Rear Rotor: 8.8/8.8/8.7 at 265 cranking rpm (125 psi)

rotaryinspired 11-04-2005 04:54 PM

Sounds like a healthy one to me.

jspecracer7 11-04-2005 11:10 PM

You sir have a very strong motor with lots of time left to go play on it!

GoRacer 11-04-2005 11:46 PM

My brand new motor was all 8's. :(

...both M'Trix motors were 8's.

rfreeman27 11-05-2005 12:36 AM

Sometimes the compression will rise as an engine wears in.



especally when you are using old rotorhousings with new apex seals. They will 'wear' together.

Dueled 11-05-2005 11:21 AM

This is the original engine with 75k miles. Never heard of an enegine this old with this good results.


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