Compression test

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11-04-2005, 02:51 PM

Dueled

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Join Date: Oct 2005

Location: SO CAL

Posts: 19

Newbie question.

What kind of numbers am i looking for?

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

11-04-2005, 04:13 PM

Dueled

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Thread Starter

Join Date: Oct 2005

Location: SO CAL

Posts: 19

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)

11-04-2005, 04:54 PM

rotaryinspired

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Join Date: Oct 2004

Location: Oklahoma City

Posts: 233

Sounds like a healthy one to me.

11-04-2005, 11:10 PM

jspecracer7

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Join Date: May 2002

Location: Okinawa, Japan

Posts: 4,928

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

11-04-2005, 11:46 PM

GoRacer

Senior Member

Join Date: Aug 2002

Location: O.C. - CA.

Posts: 840

My brand new motor was all 8's.

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

11-05-2005, 12:36 AM

rfreeman27

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Join Date: Dec 2002

Location: fredneck MD

Posts: 4,107

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.