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Forum namePerformance/Engine
Topic subjectAre these compression numbers good/safe?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=24073
24073, Are these compression numbers good/safe?
Posted by jdpilot, May-29-02 08:54 AM
Had it done today at 110,210 miles. Shes a 95. Here they are;
cylinder1-105
cylinder2-95
cylinder3-110
cylinder4-110

Are these safe enough to add a 50hp shot of "the juice" and a few other bolt ons(header, cat, ignition, tb, udp, cam gears) Just want to be sure before I continue. The NOS is definately next if these numbers are ok. Thanks..jd
24074, RE: Are these compression numbers good/safe?
Posted by speedracer21, May-29-02 09:01 AM
those numbers are pretty low. might wanna think about a rebuild kit before the nos. you did the test when the car was at operating temp right?

good numbers would range from 170-210 i believe.
24075, RE: Are these compression numbers good/safe?
Posted by jdpilot, May-29-02 09:19 AM
I had a shop do them, hmmmmm
24076, RE: Are these compression numbers good/safe?
Posted by guest, May-29-02 10:08 AM
Yes do the test hot.

Also, see if its your rings....put a little dab of oil in each well when you do the test on each piston...and see if your numbers go up. If they do, it might be your rings.
24077, RE: Are these compression numbers good/safe?
Posted by JustOne, May-29-02 03:37 PM
I would find out what is causing it to be so low and fix it asap.

Those #'s are supper low on all 4
24078, RE: Are these compression numbers good/safe?
Posted by daved, May-29-02 03:57 PM
Yup, way way too low to even think about nitrous the motor wouldn't last on the juice.
24079, RE: Are these compression numbers good/safe?
Posted by Hek, May-29-02 07:32 PM
Yo Kaptain Mike do you know of any places here in Houston that have fairly good prices on engine rebuilds.

I had a massive oil leak and I think I did serious damage to my block and heads.


I've been hearing like $1,500 to $2,000. What do you think.
24080, RE: Are these compression numbers good/safe?
Posted by guest, May-30-02 12:29 AM
Yes, email fastparts@advancedracingdynamics.com

www.advancedracingdynamics.com they do all kinds of things like that...and apparently they are used to the Eclipse/Talon now :)

Dino did work on his engine, and on Bryndens...what part of houston are you from/near?
24081, RE: Are these compression numbers good/safe?
Posted by jdpilot, May-30-02 05:27 AM
Satan admitted they only warmed her up for 5 minutes before testing, they said they would test her "hot" tomorrow for free. Should I expect a difference?
24082, RE: Are these compression numbers good/safe?
Posted by HadesOmega, May-30-02 06:12 AM
yep those are pretty low I just did mine yesterday and I've got a 95 and my numbers are higher than those. My car don't pull for crap without the turbo now and I get mega lag.

150
135
135
150
24083, RE: Are these compression numbers good/safe?
Posted by PowerEclipses, May-30-02 08:46 AM
damn hades and your turbo yet? im 155-160 across and im a 95 with 145,000 miles? someone really liked my car and took a long drive on a high way im guessing if my clutch JUST went out?! what you think?
24084, RE: Are these compression numbers good/safe?
Posted by Hek, May-30-02 09:00 AM
Say Mike, I'm on the southside of Houston, near the Astrodome by 288 South.

Who else is in the Houston area, I need some help on my rebuild.


24085, RE: Are these compression numbers good/safe?
Posted by guest, May-30-02 11:58 PM
I'm off 610SW Loop and Westheimer. We're neighbors. So is iamnotwhoiam (Jason) as well.
24086, RE: Are these compression numbers good/safe?
Posted by Hek, May-31-02 09:38 AM
What does it mean when they say you spun a rod bearing?