NoPistons -Mazda Rx7 & Rx8 Rotary Forum

3rd Generation Specific Talk about 3rd gen RX-7's here.

Compression numbers

Thread Tools
 
Search this Thread
 
Old Sep 3, 2002 | 10:06 AM
Share
  #1  
Fe3Boost's Avatar
Fe3Boost
Thread Starter
Senior Member
 
Joined: Sep 2002
Posts: 657
From: Alexandria Va
Default
Well I had a few of the Rikki clan over for the holiday and we decided to do some compression test and I was very curious to see what my numbers were. So we used a real Rotary Engine Tester. These were my results.



Front Rotor:

112psi

113psi

113psi



Rear Rotor:

113psi

113psi

113.5psi





These are outstanding numbers. I think it was from having brand new parts (rotors and housings and seals). So I think Wargasm has the print out from the tester. If you read this dude. Do your magic and post it up.



-Rikki







Reply
Old Sep 3, 2002 | 10:10 AM
Share
  #2  
RussellTT94's Avatar
RussellTT94
Senior Member
 
Joined: Dec 2001
Posts: 1,053
From: Charlotte, NC
Default
excellent compression, how long ago was it rebuilt?
Reply
Old Sep 3, 2002 | 10:23 AM
Share
  #3  
vosko's Avatar
vosko
Super Moderator
 
Joined: Jul 2001
Posts: 17,839
From: NJ
Default
those are good. outstanding is 150 psi.......
Reply
Old Sep 3, 2002 | 10:25 AM
Share
  #4  
RX-Midget's Avatar
RX-Midget
Senior Member
 
Joined: Oct 2001
Posts: 368
From: Westminster, MD
Default
Your full of it Rikki! You can't do a compression test. Hell, you don't even know how to change plugs!







btw- I thought those numbers you got were in BAR not PSI. I thought they were like 11.3 BAR? I may be wrong......
Reply
Old Sep 3, 2002 | 10:43 AM
Share
  #5  
9BASE3's Avatar
9BASE3
Senior Member
 
Joined: Feb 2002
Posts: 6,331
From: Frederick MD
Default
Originally Posted by Dont_Be_A_Rikki' date='Sep 3 2002, 10:06 AM
Well I had a few of the Rikki clan over for the holiday and we decided to do some compression test and I was very curious to see what my numbers were. So we used a real Rotary Engine Tester. These were my results.



Front Rotor:

112psi

113psi

113psi



Rear Rotor:

113psi

113psi

113.5psi





These are outstanding numbers. I think it was from having brand new parts (rotors and housings and seals). So I think Wargasm has the print out from the tester. If you read this dude. Do your magic and post it up.



-Rikki







I'm coming back to MD in October... I'd love to check out your car, if you don't mind!
Reply
Old Sep 3, 2002 | 10:45 AM
Share
  #6  
vosko's Avatar
vosko
Super Moderator
 
Joined: Jul 2001
Posts: 17,839
From: NJ
Default
a mazda rotary compression tested reads in kg/cm^2. 7's are good. 8's are great!
Reply
Old Sep 3, 2002 | 11:18 AM
Share
  #7  
Fe3Boost's Avatar
Fe3Boost
Thread Starter
Senior Member
 
Joined: Sep 2002
Posts: 657
From: Alexandria Va
Default
yeah it was 8 on the line or so. it also has psi on the paper aswell
Reply
Old Sep 3, 2002 | 01:59 PM
Share
  #8  
j9fd3s's Avatar
j9fd3s
Senior Member
 
Joined: May 2002
Posts: 22,465
From: California
Default
Originally Posted by Dont_Be_A_Rikki' date='Sep 3 2002, 09:18 AM
yeah it was 8 on the line or so. it also has psi on the paper aswell
wow 8's is good



mike
Reply
Old Sep 3, 2002 | 02:05 PM
Share
  #9  
vosko's Avatar
vosko
Super Moderator
 
Joined: Jul 2001
Posts: 17,839
From: NJ
Default
i need to compression test my new engine in my FD i want 9's LOL
Reply
Old Sep 4, 2002 | 01:08 AM
Share
  #10  
jspecracer7's Avatar
jspecracer7
Senior Member
 
Joined: May 2002
Posts: 4,928
From: Okinawa, Japan
Default
Originally Posted by j9fd3s' date='Sep 4 2002, 04:59 AM
[quote name='Dont_Be_A_Rikki' date='Sep 3 2002, 09:18 AM']yeah it was 8 on the line or so. it also has psi on the paper aswell
wow 8's is good



mike[/quote]

yeah...of course, 9's would be nice :bigok:
Reply



Advanced Search

All times are GMT -5. The time now is 07:41 PM.