# 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:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\
**Post date:** [August 21, 2006, 3:15am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/1 "2006-08-21T03:15:10Z")

</div>

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 ?

---

<div class="post-metadata">

**Author:** ![Twizted](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/twizted/32/7206_2.png) [@Twizted](https://forums.speedlife.net/u/Twizted)\
**Post date:** [August 21, 2006, 3:52am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/2 "2006-08-21T03:52:38Z")

</div>

id say hp tuners for the tuning

---

<div class="post-metadata">

**Author:** ![BDR5oh](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bdr5oh/32/7315_2.png) [@BDR5oh](https://forums.speedlife.net/u/BDR5oh)\
**Post date:** [August 21, 2006, 3:57am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/3 "2006-08-21T03:57:26Z")

</div>

5psi … who needs a tune just buy a hand held type and take out some timeing … maybe a FMU

---

<div class="post-metadata">

**Author:** ![13005TEDGP](https://avatars.discourse-cdn.com/v4/letter/1/edb3f5/32.png) [@13005TEDGP](https://forums.speedlife.net/u/13005TEDGP)\
**Post date:** [August 21, 2006, 4:21am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/4 "2006-08-21T04:21:54Z")

</div>

All that missing stuff is gonna add up but, fug it. 😉 I’d get that Predator hand held tuner…heard good things about it. HP tuners is pretty much the best, and I think a couple of the El Es Juan guys have the program.

---

<div class="post-metadata">

**Author:** ![BaD\_AZz\_Z\_28](https://avatars.discourse-cdn.com/v4/letter/b/f04885/32.png) [@BaD\_AZz\_Z\_28](https://forums.speedlife.net/u/BaD_AZz_Z_28)\
**Post date:** [August 21, 2006, 9:33am UTC](https://forums.speedlife.net/t/boosted-ls1-questions/16229/5 "2006-08-21T09:33:50Z")

</div>

If you want the boost, you need to afford the rebuild

---

<div class="post-metadata">

**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")

</div>

> [@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
