View Full Version : Results of the Compression Test
2001orangess
10-19-2005, 12:09 AM
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 :cry:
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 :cry:
if ur inthere then low comp pistons
qwikz28
10-19-2005, 12:53 AM
forged internals so you can run more boost
2001orangess
10-19-2005, 09:47 AM
so does anyone want to forge the internals for me :wink:
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 :cry:
9secfirebird
10-19-2005, 10:05 AM
my aim is blacktoprecs if ya want help, or email me
Tru2Chevy
10-19-2005, 10:12 AM
That sux man, good luck getting her back up and running soon!
- Justin
2001orangess
10-19-2005, 10:12 AM
my aim is blacktoprecs if ya want help, or email me
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 :cry:
bad64chevelle
10-19-2005, 10:19 AM
damn man that really sucks. Good luck!
12secondv6
10-19-2005, 01:04 PM
:( Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff.
qwikz28
10-19-2005, 04:51 PM
:( Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff.and he has cool t-shirts
:( Sorry mang.
May I second the assistance of 9secfirebird.... he knows his stuff.and he has cool t-shirts
but he's black!
1RawTA
10-19-2005, 06:12 PM
RJ that really sucks man... its funny how whenever people blow up from Forced induction its always cyl #7
NJSPEEDER
10-19-2005, 08:36 PM
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
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
badzracing
10-19-2005, 08:56 PM
Welcome to the world of forced induction Gen 3's. I broke number 7 piston also..... :evil:
NJSPEEDER
10-19-2005, 09:45 PM
Welcome to the world of forced induction Gen 3's. Â*I broke number 7 piston also..... :evil:
is this a common thing with FI LSx motors?
are the pistons burned or are the rings just eaten up?
later
tim
camaroracer1992
10-20-2005, 08:42 AM
two words "Frank Bash"
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