# couple SIQ GTO's
**URL:** https://forums.speedlife.net/t/couple-siq-gtos/35701
**Category:** NYSpeed Automotive
**Created:** [September 20, 2007, 11:33am UTC](https://forums.speedlife.net/t/couple-siq-gtos/35701 "2007-09-20T11:33:26Z")
**Posts on this page:** 4
**Page:** 2
### Author:  [@JayS](https://forums.speedlife.net/u/JayS)
#### Post date: [September 21, 2007, 8:17am UTC](https://forums.speedlife.net/t/couple-siq-gtos/35701/21 "2007-09-21T08:17:51Z")
Just a warning though, I’ve never installed a supercharger. 🙂
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### Author:  [@mike72678](https://forums.speedlife.net/u/mike72678)
#### Post date: [September 22, 2007, 11:05am UTC](https://forums.speedlife.net/t/couple-siq-gtos/35701/22 "2007-09-22T11:05:53Z")
Or if you aren’t up to the task , you could just give us a call and we can dyno before and after for you .
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### Author:  [@mike72678](https://forums.speedlife.net/u/mike72678)
#### Post date: [September 22, 2007, 11:10am UTC](https://forums.speedlife.net/t/couple-siq-gtos/35701/23 "2007-09-22T11:10:10Z")
[quote=“deathproof001,post:16,topic:35701"”]
Diggin the cars, but I don’t see why you would build a motor and run 11psi. With stock compression, 11psi would prolly give about 550rwhp. I know, I know, FUCK RELIABILITY. Blow it up, then rebuild it. 96-01 cobras with hp performance twin turbos make 540ish(they have dynos on there site) with 11psi, and i have seen some of them last awhile like that(don’t have factory forged internals like 03-04’s and have 9.85cr) and +05’s make 500ish(P and J have proved so) with kenne bells. these are only 300hp cars to start with. I do really like these cars tho, just don’t be afraid to push them LS1’s, they are indeed tough.
[/quote]
I explained this to our customer when we were scheduling the build , and he said to just do the forged internal shortblock right now so that is what we did . Automatic cars dyno less when you don’t lock the convertor , the dyno is used for tuning/testing and then I street tuned it after , I have done this similar combo in a 6 speed gto last year and we made 565 rwhp .
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### Author:  [@Studderin](https://forums.speedlife.net/u/Studderin)
#### Post date: [September 23, 2007, 10:08pm UTC](https://forums.speedlife.net/t/couple-siq-gtos/35701/24 "2007-09-23T22:08:52Z")
Stock unported heads, stock cam, stock intake, stock exhaust manifolds.
Full tank of 93 in a heavy ass car, costing to low 11’s :headbang:
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