Notices
Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Just ran a compression test...

Thread Tools
 
Search this Thread
 
Old 10-15-2004, 02:56 PM
  #1  
TSPeed Factory
Thread Starter
 
AzntaggeR's Avatar
 
Join Date: Sep 2002
Location: Renton, WA, Vietnam
Posts: 5,298
Likes: 0
Received 0 Likes on 0 Posts
Default Just ran a compression test...

225-220-220-220

94 gsr motor with 130k miles.
Old 10-15-2004, 03:01 PM
  #2  
Honda-Tech Member
 
lohatch's Avatar
 
Join Date: Jan 2003
Location: the backwoods, usa
Posts: 2,841
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (AzntaggeR)

not bad. they are all pretty close to each other. that is the important thing
Old 10-16-2004, 01:55 PM
  #3  
TSPeed Factory
Thread Starter
 
AzntaggeR's Avatar
 
Join Date: Sep 2002
Location: Renton, WA, Vietnam
Posts: 5,298
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (lohatch)

i think they're suppose to be at around 240 psi, but consistency was what i was looking for.
Old 10-16-2004, 02:10 PM
  #4  
Honda-Tech Member
 
ThatsMyEG's Avatar
 
Join Date: Oct 2004
Location: Mesa, AZ, usa
Posts: 978
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (AzntaggeR)

i did mine the other day and they were all at 150 but my car still rips hard is this bad?
Old 10-16-2004, 02:12 PM
  #5  
Honda-Tech Member
 
92 CIVIC HATCH VX's Avatar
 
Join Date: Oct 2004
Location: Kansas
Posts: 1,175
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (AzntaggeR)

150 is still int he good range 220 is great.
Old 10-16-2004, 03:08 PM
  #6  
Honda-Tech Member
 
skunk2eg's Avatar
 
Join Date: Mar 2004
Location: tampa, fl
Posts: 634
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (92 CIVIC HATCH VX)

as long as they're within 5% of each other your ok
Old 10-16-2004, 04:15 PM
  #7  
Honda-Tech Member
 
hatchdrvr's Avatar
 
Join Date: Mar 2002
Posts: 770
Likes: 0
Received 1 Like on 1 Post
Default Re: Just ran a compression test... (skunk2eg)

I just did mine yesterday 215-215-205-225, I think it'll live a while longer.
Old 10-16-2004, 04:38 PM
  #8  
All Motor Mentor
 
00Red_SiR's Avatar
 
Join Date: Aug 2004
Location: 902, Nova Scotia, Canada
Posts: 6,987
Likes: 0
Received 1 Like on 1 Post
Default Re: Just ran a compression test... (B20ZVTECHB)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B20ZVTECHB &raquo;</TD></TR><TR><TD CLASS="quote">i did mine the other day and they were all at 150 but my car still rips hard is this bad?</TD></TR></TABLE>

Did you remember to disable the fuel system before you did the test??

If not, disable it and do the test again...your numbers will come up.
Old 10-18-2004, 06:59 PM
  #9  
Member
 
Espec_rep's Avatar
 
Join Date: Aug 2004
Location: Parts Heaven, CA, USA
Posts: 1,085
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (00Red_SiR)

if you don't disable the fuel system, it would cause the #s to be lower? i just did my motor on sat and it came out to be 180 across (+/- 2) with the fuel system on. If your motor has a higher compression than stock, the number should come out to be higher than stock? or lower? forgive me for my noob question
Old 10-18-2004, 07:16 PM
  #10  
All Motor Mentor
 
00Red_SiR's Avatar
 
Join Date: Aug 2004
Location: 902, Nova Scotia, Canada
Posts: 6,987
Likes: 0
Received 1 Like on 1 Post
Default Re: Just ran a compression test... (Espec_rep)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Espec_rep &raquo;</TD></TR><TR><TD CLASS="quote">if you don't disable the fuel system, it would cause the #s to be lower? i just did my motor on sat and it came out to be 180 across (+/- 2) with the fuel system on. If your motor has a higher compression than stock, the number should come out to be higher than stock? or lower? forgive me for my noob question </TD></TR></TABLE>

If you don't disable the fuel system, the fuel injectors will "gas wash" the oil off of the cylinder walls dropping the actual compression numbers. Rings need a thin layer of oil to truely seal properly. That's also why you may have heard about people placing a small amount of oil directly into the cylinder if they got low numbers from it. If the compression number comes up after that, it indicates that the rings may be bad, if the number doesn't change, it indicates a bad valve-to head-seal.

Without getting overly technical, an engine that has higher compression (all else being equal) will normally produce higher compression numbers.
Old 10-18-2004, 07:25 PM
  #11  
Honda-Tech Member
 
slambedcivic's Avatar
 
Join Date: Dec 2002
Location: Harbeson, De, USA
Posts: 3,823
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Just ran a compression test... (00Red_SiR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">

If you don't disable the fuel system, the fuel injectors will "gas wash" the oil off of the cylinder walls dropping the actual compression numbers. Rings need a thin layer of oil to truely seal properly. That's also why you may have heard about people placing a small amount of oil directly into the cylinder if they got low numbers from it. If the compression number comes up after that, it indicates that the rings may be bad, if the number doesn't change, it indicates a bad valve-to head-seal.

Without getting overly technical, an engine that has higher compression (all else being equal) will normally produce higher compression numbers.</TD></TR></TABLE>
learned something new just now! thanks

BTW, those first posted numbers are awsome...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Boosted Chemist
Forced Induction
15
05-04-2007 06:33 AM
berettagtz117
Acura Integra Type-R
8
03-06-2007 04:09 PM
tweekerz
Acura Integra
17
04-30-2004 09:43 AM
oMek
Acura Integra
26
10-27-2003 12:04 PM
JunIntegra
Acura Integra
36
07-01-2003 01:40 PM



Quick Reply: Just ran a compression test...



All times are GMT -8. The time now is 01:17 AM.