C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Are bigger injectors needed......?

Thread Tools
 
Search this Thread
 
Old Sep 7, 2004 | 07:22 PM
  #1  
Laguna Blu's Avatar
Laguna Blu
Thread Starter
Le Mans Master
20 Year Member
Conversation Starter
Liked
Top Answer: 1
 
Joined: Jun 2004
Posts: 7,157
Likes: 154
From: The Arid Sunny Desert
Default Are bigger injectors needed......?

I'm considering a swap to the 90mm TB & the FAST LSX intake by Comp Cams. I just had Kooks headers installed and I currently have a LS6 intake with stock TB. I feel that I have the exhaust side taken care of. The engine is currently stock displacement. My question is this, can the C5 burn all of the increased air flow that will accompany the setup with the stock injectors or is it a waste of $$? I have a heads & Cam car with close to 400 RWHP. Before I drop the money on the intake package I'd like some opinions on the setup. I know that there are varying opinions.
Thanks..

Last edited by Laguna Blu; Sep 7, 2004 at 08:05 PM.
Reply
Old Sep 7, 2004 | 09:43 PM
  #2  
GOOSE JR.'s Avatar
GOOSE JR.
Pro
 
Joined: May 2004
Posts: 744
Likes: 0
From: St. Peters MO.
Default

I read a test in one of the corvette magazines, where they tested the FAST intake against a LS6 intake and they showed a HP gain of 12.
Reply
Old Sep 7, 2004 | 10:14 PM
  #3  
Chris@East Coast Supercharging's Avatar
Chris@East Coast Supercharging
Premium Supporting Vendor
25 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Photogenic
 
Joined: Jan 2001
Posts: 17,681
Likes: 11
From: Central Jersey
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In V Veteran
Default

Stock injectors for most applications are good until at least 420 rwhp range. Some a little more but very few give up less. Best thing to do is to check the duty cycle. The injectors will tell you if they can keep up to the demands of the particular package.
Reply
Old Sep 8, 2004 | 12:06 AM
  #4  
Laguna Blu's Avatar
Laguna Blu
Thread Starter
Le Mans Master
20 Year Member
Conversation Starter
Liked
Top Answer: 1
 
Joined: Jun 2004
Posts: 7,157
Likes: 154
From: The Arid Sunny Desert
Default

Originally Posted by CHRIS NJ C5
Stock injectors for most applications are good until at least 420 rwhp range. Some a little more but very few give up less. Best thing to do is to check the duty cycle. The injectors will tell you if they can keep up to the demands of the particular package.
Thanks for the heads up Chris. Hopefully the gears will be in today. Do you stock the 90mm TB & FAST LSX Intake? You can shoot me an email.
Reply
Old Sep 8, 2004 | 10:19 AM
  #5  
XPC5R's Avatar
XPC5R
Drifting
 
Joined: Apr 2002
Posts: 1,614
Likes: 1
From: DFW TX
Default

I've been told around 430-450rwhp is where you should go to at least 30lb (SVO) injectors. Those should take the motor to around 500rwhp.
Reply
Old Sep 8, 2004 | 10:40 AM
  #6  
Bill Reid's Avatar
Bill Reid
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Default

Gotta agree with Chris on this one... let the injectors tell you (duty cycle) if they need to be replaced.
Reply

Get notified of new replies

To Are bigger injectors needed......?





All times are GMT -4. The time now is 01:56 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE