Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: Ultraman_Cosmo on April 25, 2004, 04:12:16 PM

Title: 12A Compression Readings
Post by: Ultraman_Cosmo on April 25, 2004, 04:12:16 PM
I\'ve just done a compression test on my 12A powered Ro80. The readings are as follows:
Front rotor:
9
9.5
9.5
Rear rotor:
8.5
8
7.5
I carried out the test as the car is low on power. What I would like to know from someone in the know is how would a 12A with similar readings generally perform? An NSU engine with these readings would perform pretty well but I don\'t know how the Mazda engines perform. I\'m basically trying to work out if I\'m lacking power due to this or something else. There is no smoke or starting problems.
Thanks,
Phil.
Title: 12A Compression Readings
Post by: clive on April 25, 2004, 04:22:03 PM
Hi Phil,
Good to hear from you, can\'t help you with your 12A reading but l am sure Carl will help.

If you would lke to goto
http://www.mazdarotaryclub.com/forums/showthread.php?s=&threadid=5911

You will like what you see, who know\'s one of those Cosmo\'s could be yours!

Any chance of bringing it up to RotorStock to put it on display for us at the  largest Mazda show ever staged in Europe.
Title: 12A Compression Readings
Post by: Ultraman_Cosmo on April 25, 2004, 04:46:03 PM
Sure thing Clive, just let me know where you want me :) Those videos look superb, just downloading now. Thank God I just got ADSL :)
Title: Re: 12A Compression Readings
Post by: Carl on April 25, 2004, 05:37:48 PM
Hi Phil,
Your readings are fine,in fact more than fine.
You must have a problem with something else.
Kind regards
Carl




QuoteOriginally posted by Ultraman_Cosmo
I\'ve just done a compression test on my 12A powered Ro80. The readings are as follows:
Front rotor:
9
9.5
9.5
Rear rotor:
8.5
8
7.5
I carried out the test as the car is low on power. What I would like to know from someone in the know is how would a 12A with similar readings generally perform? An NSU engine with these readings would perform pretty well but I don\'t know how the Mazda engines perform. I\'m basically trying to work out if I\'m lacking power due to this or something else. There is no smoke or starting problems.
Thanks,
Phil.