# question

**URL:** https://forums.speedlife.net/t/question/194993
**Category:** PittSpeed Automotive
**Created:** [January 23, 2008, 9:20am UTC](https://forums.speedlife.net/t/question/194993 "2008-01-23T09:20:42Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![twoliterek](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@twoliterek](https://forums.speedlife.net/u/twoliterek)
#### Post date: [January 23, 2008, 9:20am UTC](https://forums.speedlife.net/t/question/194993/1 "2008-01-23T09:20:42Z")

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whats the highest compression pistons i can get and still run pump gas

11.5:1? 12:1?

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### Author: ![twoliterek](https://avatars.discourse-cdn.com/v4/letter/t/9de0a6/32.png) [@twoliterek](https://forums.speedlife.net/u/twoliterek)
#### Post date: [January 23, 2008, 9:41am UTC](https://forums.speedlife.net/t/question/194993/2 "2008-01-23T09:41:35Z")

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just noticed i had 6 posts. would someone be able to move this into the imports area please?

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### Author: ![dyingwish](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dyingwish/32/6041_2.png) [@dyingwish](https://forums.speedlife.net/u/dyingwish)
#### Post date: [January 23, 2008, 11:40am UTC](https://forums.speedlife.net/t/question/194993/3 "2008-01-23T11:40:37Z")

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depends on the TUNE.

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### Author: ![wrayzor](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wrayzor/32/6021_2.png) [@wrayzor](https://forums.speedlife.net/u/wrayzor)
#### Post date: [January 23, 2008, 3:34pm UTC](https://forums.speedlife.net/t/question/194993/4 "2008-01-23T15:34:22Z")

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13:1

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### Author: ![TXcivic96](https://avatars.discourse-cdn.com/v4/letter/t/e9bcb4/32.png) [@TXcivic96](https://forums.speedlife.net/u/TXcivic96)
#### Post date: [January 23, 2008, 6:29pm UTC](https://forums.speedlife.net/t/question/194993/5 "2008-01-23T18:29:24Z")

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> [@1994 lt1 vett overheating issue](https://forums.speedlife.net/t/1994-lt1-vett-overheating-issue/34522/16):
>
> depends on the TUNE.

x infinity

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### Author: ![PoisonousBeef](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/poisonousbeef/32/6007_2.png) [@PoisonousBeef](https://forums.speedlife.net/u/PoisonousBeef)
#### Post date: [January 23, 2008, 8:40pm UTC](https://forums.speedlife.net/t/question/194993/6 "2008-01-23T20:40:38Z")

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Depends on a ton of things. Notably, as stated, your tune. In addition, pretty much every part of your head can impact how high you go - the head material itself, the flow characteristics, your cam profile and the rest of your valvetrain can all have an impact.

A Honda S2000 runs 11.0:1 from the factory on 91 octane. Years ago Comptech was reliably running one with 6-7psi of boost using just a rising rate FPR and the stock tune.