LS3 with twin 67mm turbos... Which injectors/valve springs? - LS1TECH - Camaro and Firebird Forum Discussion

Go Back  LS1TECH - Camaro and Firebird Forum Discussion > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Forced Induction
Reload this Page >

LS3 with twin 67mm turbos... Which injectors/valve springs?

Notices
Forced Induction Superchargers | Turbochargers | Intercoolers

LS3 with twin 67mm turbos... Which injectors/valve springs?

Old 01-11-2019, 07:38 PM
  #1  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default LS3 with twin 67mm turbos... Which injectors/valve springs?

Not gonna push it too hard with boost. Gonna keep it stock as its a crate motor. What size injectors would be good its staying on 93 gas? Probably 12lbs tops. Which valve springs as well?
vettewreck is offline  
Old 01-11-2019, 08:10 PM
  #2  
TECH Fanatic
iTrader: (42)
 
Join Date: Nov 2008
Location: A-Town, Ill side
Posts: 1,381
Default

I would think 80# injectors. Are you going to swap the cam? If not I may consider, just leaving the stock springs, otherwise, what cam? I generally run BTR springs. Best bang for the buck.
rpturbo is offline  
Old 01-11-2019, 08:13 PM
  #3  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default

No we are gonna keep the original cam. But I do feel like a spring swap may help it at least a little bit in case we do decide to start turning it up.
vettewreck is offline  
Old 01-11-2019, 08:31 PM
  #4  
12 Second Club
iTrader: (5)
 
krazy4's Avatar
 
Join Date: Mar 2006
Location: Yorba Linda, CA
Posts: 1,405
Default

80lb injectors would work nicely for that setup.

Pac 1218 springs are cheap and work well.
BTR springs would be better.
krazy4 is offline  
Old 01-11-2019, 09:57 PM
  #5  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default

Can anyone link me to the right kind of injectors?
vettewreck is offline  
Old 01-11-2019, 10:43 PM
  #6  
10 Second Club
iTrader: (14)
 
Detoxx03's Avatar
 
Join Date: Jan 2007
Location: Woodward Avenue
Posts: 7,230
Default

Just do a set of ID1000s. Great injectors and will give you a little extra room if you decide to add a little power.
Detoxx03 is offline  
Old 01-11-2019, 10:57 PM
  #7  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default

Unfortunately those are out of budget. Anyone have a link to the correct set for a LS3 80s?
vettewreck is offline  
Old 01-12-2019, 11:50 AM
  #8  
TECH Fanatic
 
Join Date: Jun 2014
Posts: 1,337
Default

You want Siemens 80 lb short with ev6 connector for ls3. Plenty of injector data online for those. I would get real ones, not knock offs.
jimmyg is offline  
Old 01-12-2019, 11:59 AM
  #9  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default

Perfect thank you!
vettewreck is offline  
Old 01-12-2019, 01:27 PM
  #10  
TECH Fanatic
 
Join Date: Jun 2014
Posts: 1,337
Default

What are u using for ecm/harness?
jimmyg is offline  
Old 01-12-2019, 02:08 PM
  #11  
Launching!
Thread Starter
iTrader: (1)
 
Join Date: Jun 2003
Location: Raleigh, NC
Posts: 284
Default

Stock
vettewreck is offline  
Old 01-12-2019, 05:50 PM
  #12  
Staging Lane
 
Join Date: Mar 2015
Posts: 53
Default

Why such big turbos?
fif_gen_powa is offline  


Thread Tools
Search this Thread

About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: