Injectors - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 09-14-2010, 08:08 PM   #1
Senior Member
Posts like a Corvette
Thread Starter
 
Nighthwk12's Avatar
 
Join Date: Feb 2009
Location: Jersey Shore
Posts: 1,511
Thanks: 0
Thanked 0 Times in 0 Posts
Nighthwk12 is on a distinguished road
Default Injectors

So I've been running in my head over and over again the mods I will be starting on my car. Will my stock injectors be able to handle a descent upgrade should I bump up to larger injectors. here'* my list.
  • GT2 cam
  • headers
  • N* TB
  • LQ4 MAF
  • L26 upper
  • ported intake
  • CAT Delete
  • FWI
  • HV3 (later)
  • HD trans (would the quicker gearing need bigger injectors)

SO, do I need to add injectors to the list?
Nighthwk12 is offline   Reply With Quote
Old 09-14-2010, 08:14 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

You should be OK, I ran my stockers till just this spring. It will depend on how much air you can pull threw the engine. Seeing your not changing the heads it should be OK. But only a good scan will show the injector duty.
Danthurs is offline   Reply With Quote
Old 09-14-2010, 09:40 PM   #3
Senior Member
True Car Nut
 
Purplehazeir's Avatar
 
Join Date: Sep 2008
Location: Arlington, WA
Posts: 7,979
Thanks: 0
Thanked 1 Time in 1 Post
Purplehazeir is on a distinguished road
Default

Stock injectors should be fine. Like Dan said, watch your scans and see if the motor has more bandwidth for air/fuel mixture. But more than likely unless you add some significantly modded heads, I doubt you'll be able to push more out to let more in. Bigger injectors usually mean a need to increase the lpm for fuel delivery and that means a new pump as well.
Purplehazeir is offline   Reply With Quote
Old 09-15-2010, 09:00 AM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Agreed, you should be fine. If you need bigger, I'd suggest picking up a set of L67'* from a JY for $5 each.
BillBoost37 is offline   Reply With Quote
Old 09-15-2010, 03:56 PM   #5
Senior Member
True Car Nut
 
radomirthegreat's Avatar
 
Join Date: Sep 2006
Location: Indianapolis, IN
Posts: 4,606
Thanks: 0
Thanked 0 Times in 0 Posts
radomirthegreat is on a distinguished road
Default

I'm still on my stock L36 injectors, and there'* plenty of room to go. You may need bigger injectors because of the cam, but we'll just have to wait and see.

The different gear ratio will not require new injectors because it just makes the engine spin at other RPMs at the same car speed. Your engine should not be starving for fuel at any RPM regardless of how fast the car moves. I think I explained that sort of clearly...
radomirthegreat is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
CLEANING FUEL INJECTORS RZJNVB 1992-1999 2 02-03-2003 10:07 AM
sc injectors Performance, Brainstorming & Tuning 14 02-02-2003 05:23 AM
14 mpg, New fuel injectors? TheJestersRace 1992-1999 11 01-30-2003 04:01 PM
Changing out fuel injectors... SSEi95 1992-1999 3 08-30-2002 01:49 PM
Fuel Injectors EightSevenZero 1992-1999 7 08-21-2002 09:40 AM


Tags
injectors, l26 uim, l36 mods

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:45 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.