Forced Induction Superchargers | Turbochargers | Intercoolers

Injector options for a P1sc?

Thread Tools
 
Search this Thread
 
Old Sep 9, 2004 | 09:42 AM
  #1  
xssive's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (123)
 
Joined: Nov 2001
Posts: 2,256
Likes: 2
From: Austin, TX
Default Injector options for a P1sc?

What would you guys reccomend for a home built p1sc kit with ported 6l heads and ls6 intake running around 5lb of boost? Looking to make 460-500hp.


I have seen Lucas 38, Lucas 42 and fms 42's. What is the best option?
Reply
Old Sep 9, 2004 | 09:44 AM
  #2  
Slowhawk's Avatar
LS1Tech Sponsor
iTrader: (12)
 
Joined: Nov 2001
Posts: 14,865
Likes: 6
From: Bridgewater,Ma
Default

We run 42's on most cars in that power range with good results.
Reply
Old Sep 9, 2004 | 11:25 AM
  #3  
xssive's Avatar
Thread Starter
TECH Addict
20 Year Member
iTrader: (123)
 
Joined: Nov 2001
Posts: 2,256
Likes: 2
From: Austin, TX
Default

Is it easier to tune without a FMU? Do I have to have a boost reference fpr to really get the most out of this?
Reply
Old Sep 9, 2004 | 08:44 PM
  #4  
10thanvhawk's Avatar
Staging Lane
 
Joined: Jun 2002
Posts: 68
Likes: 0
From: Palm Beach, FL
Post

Originally Posted by xssive
Is it easier to tune without a FMU? Do I have to have a boost reference fpr to really get the most out of this?
Grab the 42's, ditch the FMU, get more help in the fuel delivery dept via a 255lph intank or better yet (2), ditch the ATI included KN filter and upgrade to a KN RU-1785, get it tuned at that point. ENJOY. Then get the bug and boost it some more, until you get to about 10-12 psi you will then want to stroke it too.

I have done all that and run a RR 2.8 pulley to boot on my P1sc-1. I dyno about 539RWHP and about 500RWTQ. Now it's time to STROKE IT. 408 on the way.
Reply
Old Sep 10, 2004 | 02:16 AM
  #5  
imos-ss 01's Avatar
On The Tree
20 Year Member
 
Joined: Jun 2004
Posts: 167
Likes: 0
From: south county, STL
Default

10th, you hit it right on the nose....I also upgraded the filter....1785... 42lbers. ditch the fmu and get ls1 edit, hptuners, or have it tuned by one of the ls1 shops....you will make more power without that POS... now that you have the blower time to get a real program in it. You don't have to have gauges, but if you want to know whats going on under the hood??? GAME ON!!
Reply
Old Sep 10, 2004 | 12:36 PM
  #6  
CountryMuzicZ28's Avatar
On The Tree
iTrader: (1)
 
Joined: Sep 2004
Posts: 114
Likes: 0
From: South Florida
Default

im running a walbro 255 and Bosh 42# injectors.. Im running rich a little with 58PSI and NO FMU.. no dyno numbers.
Reply




All times are GMT -5. The time now is 12:04 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE