# 4G63t Compression Numbers

**URL:** <https://forums.speedlife.net/t/4g63t-compression-numbers/199881>\
**Category:** PittSpeed Automotive\
**Created:** [September 29, 2008, 11:56pm UTC](https://forums.speedlife.net/t/4g63t-compression-numbers/199881 "2008-09-29T23:56:26Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![Darkstar](https://avatars.discourse-cdn.com/v4/letter/d/b487fb/32.png) [@Darkstar](https://forums.speedlife.net/u/Darkstar)\
**Post date:** [September 30, 2008, 7:11am UTC](https://forums.speedlife.net/t/4g63t-compression-numbers/199881/3 "2008-09-30T07:11:21Z")

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> [@TMP 1/4 mile 11/3/07](https://forums.speedlife.net/t/tmp-1-4-mile-11-3-07/38102/5):
>
> Check voltage, they can run quite shitty without having trouble starting if the alternator output is low.
> 
> Did you check for boost leaks?

read. the. thread.

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