LS1TECH - Camaro and Firebird Forum Discussion

Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

using LS3 injectors w/ ls1 harness questions

Thread Tools
 
Search this Thread
 
Old 10-16-2009, 12:45 PM
  #1  
12 Second Club
Thread Starter
iTrader: (17)
 
Nimitz87's Avatar
 
Join Date: Dec 2004
Location: Cooper City, FL
Posts: 1,449
Likes: 0
Received 0 Likes on 0 Posts

Default using LS3 injectors w/ ls1 harness questions
I'm swapping to L92 heads and an ls3 intake on an lq4 bottom end using my stock ls1 harness.

my question is is it better to use ls1 style injectors I already have green top 42lb'ers but the intake im looking to buy comes w/ ls3 injectors so its a toss up.

with the ls3 injectors I'd need a harness adapter correct?

and the 42lb'ers I'd need a spacer for the fuel rail?

just looking for some clarification.

Chad
Nimitz87 is offline  
Reply Like
Old 10-16-2009, 12:51 PM
  #2  
LS1Tech Sponsor
iTrader: (14)
 
Beau@SDPC's Avatar
 
Join Date: Feb 2009
Location: Lubbock, TX
Posts: 2,262
Likes: 0
Received 2 Likes on 2 Posts
Default
either way it will cost. you will need the fuel rail spacer and o rings for the LS3 intake if you use your LS1 style injectors. we have those
or if you use the stock LS3 injectors, it just takes the harnesses. we have those as well.
Beau@SDPC is offline  
Reply Like
Old 10-16-2009, 01:05 PM
  #3  
12 Second Club
Thread Starter
iTrader: (17)
 
Nimitz87's Avatar
 
Join Date: Dec 2004
Location: Cooper City, FL
Posts: 1,449
Likes: 0
Received 0 Likes on 0 Posts

Default
Originally Posted by John@Scoggin
either way it will cost. you will need the fuel rail spacer and o rings for the LS3 intake if you use your LS1 style injectors. we have those
or if you use the stock LS3 injectors, it just takes the harnesses. we have those as well.
yeah I realize...is there any pros/cons to one or the other or is just personal preference?

the 42's are bigger so I guess its better to use those...

Chad
Nimitz87 is offline  
Reply Like
Old 10-16-2009, 01:09 PM
  #4  
LS1Tech Sponsor
iTrader: (14)
 
Beau@SDPC's Avatar
 
Join Date: Feb 2009
Location: Lubbock, TX
Posts: 2,262
Likes: 0
Received 2 Likes on 2 Posts
Default
size does not matter as much as height. either way, there really is no better way. the ford ones are rated at a lower PSI fuel pressure, so you may have a set that is better suited for more power. may want to double check what they are rated at.
Beau@SDPC is offline  
Reply Like
Old 10-16-2009, 01:21 PM
  #5  
12 Second Club
Thread Starter
iTrader: (17)
 
Nimitz87's Avatar
 
Join Date: Dec 2004
Location: Cooper City, FL
Posts: 1,449
Likes: 0
Received 0 Likes on 0 Posts

Default
Originally Posted by John@Scoggin
size does not matter as much as height. either way, there really is no better way. the ford ones are rated at a lower PSI fuel pressure, so you may have a set that is better suited for more power. may want to double check what they are rated at.
yeah the 42's are rated that @ 3bar so @ 4bar they are almost 50lb injectors.

I can't find the fuel rail spacer on your site could you PM me or post the link please?

Chad
Nimitz87 is offline  
Reply Like
Old 10-16-2009, 01:24 PM
  #6  
11 Second Club
iTrader: (6)
 
1hotls1's Avatar
 
Join Date: Jul 2006
Location: Sibley, La
Posts: 237
Likes: 0
Received 0 Likes on 0 Posts

Default
I used the adapters from Speartech. The set was like $60 plus shipping.
1hotls1 is offline  
Reply Like
Old 10-16-2009, 01:24 PM
  #7  
LS1Tech Sponsor
iTrader: (14)
 
Beau@SDPC's Avatar
 
Join Date: Feb 2009
Location: Lubbock, TX
Posts: 2,262
Likes: 0
Received 2 Likes on 2 Posts
Default
http://www.sdparts.com/product/KATA4...dapterKit.aspx

for using LS1 injectors in LS7 but the LS3 inj is the same as LS7....so those should fix you up.
Beau@SDPC is offline  
Reply Like

Trending Topics

Old 10-16-2009, 01:33 PM
  #8  
12 Second Club
Thread Starter
iTrader: (17)
 
Nimitz87's Avatar
 
Join Date: Dec 2004
Location: Cooper City, FL
Posts: 1,449
Likes: 0
Received 0 Likes on 0 Posts

Default
Originally Posted by John@Scoggin
http://www.sdparts.com/product/KATA4...dapterKit.aspx

for using LS1 injectors in LS7 but the LS3 inj is the same as LS7....so those should fix you up.

I meant using the ls1 42lb injectors...you said there was a fuel rail spacer?

Chad
Nimitz87 is offline  
Reply Like
Old 10-16-2009, 01:35 PM
  #9  
LS1Tech Sponsor
iTrader: (14)
 
Beau@SDPC's Avatar
 
Join Date: Feb 2009
Location: Lubbock, TX
Posts: 2,262
Likes: 0
Received 2 Likes on 2 Posts
Default
yes. those are it. it comes with the correct O rings, and the spacers to make the fuel rail sit higher so the longer injector will fit.
Beau@SDPC is offline  
Reply Like
Old 10-16-2009, 01:37 PM
  #10  
12 Second Club
Thread Starter
iTrader: (17)
 
Nimitz87's Avatar
 
Join Date: Dec 2004
Location: Cooper City, FL
Posts: 1,449
Likes: 0
Received 0 Likes on 0 Posts

Default
Originally Posted by John@Scoggin
yes. those are it. it comes with the correct O rings, and the spacers to make the fuel rail sit higher so the longer injector will fit.

ah sorry!

thanks for the help

only need one kit correct?

Chad
Nimitz87 is offline  
Reply Like
Old 10-16-2009, 01:41 PM
  #11  
LS1Tech Sponsor
iTrader: (14)
 
Beau@SDPC's Avatar
 
Join Date: Feb 2009
Location: Lubbock, TX
Posts: 2,262
Likes: 0
Received 2 Likes on 2 Posts
Default
right, one kit will do both sides
Beau@SDPC is offline  
Reply Like
Tags
Back to Subforum
Generation IV Internal Engine
View Next Unread
Lsx Block and Ls7 Heads




Advanced Search
Quick Reply: using LS3 injectors w/ ls1 harness questions


Reply Closed Thread Share

All times are GMT -5. The time now is 03:32 AM.