# boosted ls1 questions

**URL:** <https://forums.speedlife.net/t/boosted-ls1-questions/16229>\
**Category:** NYSpeed Automotive\
**Created:** [August 21, 2006, 3:15am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229 "2006-08-21T03:15:10Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\
**Post date:** [August 21, 2006, 3:07pm UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/6 "2006-08-21T15:07:21Z")

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> [@HotRodKid](#):
>
> vehical:
> 
> 1998 firebird  
> ls1 engine  
> ls6 intake  
> bbk 80mm throttle body  
> long tube headers  
> 3" y pipe into 3" exhaust w/ electric cutout  
> no egr system  
> no cats  
> no air pump system  
> 255walbro / racetronics pump & wiring kit  
> no AC system  
> underdrive pulley
> 
> what would be needed to put a 5psi non-IC’ed powerdyne supercharger on this car ? its only a partial kit but it was basicly free at this point. missing a bracket, some tubing, and the ECU calibrator thing …
> 
> injectors ?  
> aftermarket fpr?
> 
> whats a cost effective way to tune ?

Well the 98 cars came with larger injectors ~28 lbs. You will most likely be fine with those or you can upgrade to 30 lb. SVO injectors. Only way to tell 100% would be to check out the injector duty cycle. Most cost effective way to tune is with HP tuners. Forget the FMU it is more trouble than it is worth with the factory returnless fuel system. Just call up Powerdyne and order the missing parts

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