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10-19-2005, 12:09 AM
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#1
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Join Date: Sep 2004
Location: good to be back
Posts: 656
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Results of the Compression Test
well i did the compression test today to try to diagnois any problems that may have developed since the trubo install.
recently the idle is a rougher, and there is a trace of white smoke coming out of the dipstick
so me and my buddy did it today and this is the results
cylinder result
1 165
2 160
3 165
4 160
5 165
6 155
7 45
8 160
as you can see cylinder 7 is all messed up 
we poured a little oil into the spark plug hole and it went up from 45 to 65. so from that we concluded that it was a piston ring.\
what do you guys think
and what should i do now. rering the piston, get lower compression pistons, stay with stock pistons or roll my car off a cliff
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10-19-2005, 12:42 AM
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#2
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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if ur inthere then low comp pistons
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1999 Corvette FRC
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10-19-2005, 12:53 AM
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#3
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,694
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forged internals so you can run more boost
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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10-19-2005, 09:47 AM
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#4
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Join Date: Sep 2004
Location: good to be back
Posts: 656
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so does anyone want to forge the internals for me 
i was already thinking of the lower compression pistons, but i don't have the funds to forge the internals. remember, i don't work
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10-19-2005, 10:05 AM
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#5
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Join Date: Oct 2004
Posts: 365
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my aim is blacktoprecs if ya want help, or email me
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AIM: blacktoprecs
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10-19-2005, 10:12 AM
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#6
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,476
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That sux man, good luck getting her back up and running soon!
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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10-19-2005, 10:12 AM
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#7
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Join Date: Sep 2004
Location: good to be back
Posts: 656
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Quote:
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Originally Posted by 9secfirebird
my aim is blacktoprecs if ya want help, or email me
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cool, i'll email you later cause now i'm in class. where are you located and how long do you think it'll take. there's soo much crap underneath the hood
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10-19-2005, 10:19 AM
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#8
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I will beat you with a toaster!
Join Date: Sep 2004
Posts: 6,054
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damn man that really sucks. Good luck!
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10-19-2005, 01:04 PM
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#9
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Token v6 Guy
Join Date: Sep 2004
Location: No longer neon land :(
Posts: 5,703
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 Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff.
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2013 Dodge Challenger SRT8 - 12.079 at 116.45
2010 Ford Taurus SHO - stage 4+ tune and an intake - no times yet
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10-19-2005, 04:51 PM
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#10
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13 Second Club / Moderator
Join Date: Jan 2005
Location: Franklin Lakes, NJ
Posts: 8,694
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Quote:
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Originally Posted by 12secondv6
Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff. |
and he has cool t-shirts
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Quote:
Originally Posted by LS1ow
Except Jersey mike, great kid, but the way he looks at me makes me feel like im in danger
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10-19-2005, 04:58 PM
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#11
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Join Date: Aug 2004
Location: Somerset County
Posts: 5,559
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Quote:
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Originally Posted by qwikz28
Quote:
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Originally Posted by 12secondv6
Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff. |
and he has cool t-shirts |
but he's black!
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1999 Corvette FRC
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10-19-2005, 06:12 PM
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#12
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Join Date: Aug 2004
Location: Park Ridge, NJ
Posts: 450
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RJ that really sucks man... its funny how whenever people blow up from Forced induction its always cyl #7
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2005 Lancer Evolution VIII
2001 WS6 Trans Am
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WWW.TTPERFORMANCE.NET
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10-19-2005, 08:36 PM
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#13
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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Re: Results of the Compression Test
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Originally Posted by 2001orangess
cylinder Â* Â* Â* Â* Â* Â* Â* Â*result
1 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 165
2 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 160
3 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 165
4 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 160
5 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 165
6 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 155
7 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â*45
8 Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* Â* 160
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hmmm, those seem terribly high. i say lower the compression down until they all match #7. less cyl pressure means less strain on connecting rods, pistons, and the crank :P
sorry to hear about the trouble with the motor. sounds like a good excuse for a big inch LSx from TTP with a healthy cam and head combination 
later
tim
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10-19-2005, 08:56 PM
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#14
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Join Date: Feb 2005
Location: south jersey
Posts: 418
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Welcome to the world of forced induction Gen 3's. I broke number 7 piston also..... 
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10-19-2005, 09:45 PM
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#15
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NJFBOA Co-Founder
Join Date: Jul 2004
Location: All up in your kool aid!
Posts: 12,235
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Quote:
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Originally Posted by badzracing
Welcome to the world of forced induction Gen 3's. Â*I broke number 7 piston also..... |
is this a common thing with FI LSx motors?
are the pistons burned or are the rings just eaten up?
later
tim
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10-20-2005, 08:42 AM
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#16
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10 Second Club
Join Date: Aug 2004
Location: Hatfield, PA
Posts: 1,292
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two words "Frank Bash"
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