bigger injectors,,, help
Thread Starter
Racer
Joined: Mar 2007
Posts: 323
Likes: 0
From: Austin Texas
bigger injectors,,, help
ok this is what i need to know.... at what point in doing mods to a 2000 model, do i need to go with bigger injectors... the reason im asking is because i can buy some 60s for fairly cheep... and would it cause problems to put them on if i didnt really need them at this point.. all and any info of going to bigger injectors is welcome and wanted
Pro
Joined: May 2006
Posts: 593
Likes: 12
From: Maryland Heights MO
Depends on what mods you're doing. Heads/cam in the 400-500 RWHP mods will require some SVO 30Lb injectors (they're actually 36Lb in a vette). Bigger mods and supercharging will require 42Lb and higher injectors. Discuss it with a tuner.
Thread Starter
Racer
Joined: Mar 2007
Posts: 323
Likes: 0
From: Austin Texas
ive got almost all the bolt ons.. except intake,,, which it shouldnt be much longer on that.. im putting down 355 right now and im about to do a cam and im getting in some heads that im going to do a mild port job on and ill polish them as well...its a daily driver so im not going to go crazy with the cam.. ill stay with a 113 or 114 lsa and probably just a little over a 600 lift with around a 225 to 228 duration,, i have vera ram, 85mm maf, ported and polished TB, vortex power duct, borla, msd , ngk, and will definatly be geting it tuned when i put in the heads and cam..
Last edited by cracker Bear; Apr 12, 2007 at 11:27 PM.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Depending on your final mods, you "may" need bigger injectors. The ones you are looking at a way too big. The last time I dynoed I was over 100% duty cycle on the injectors. I am now adding a ported FAST intake and will upgrade to the Ford SVO 30# injectors at the same time to lower the duty cycle and hopefully make it easier to tune at WOT.
I would leave the injectors alone until you dyno and determine the duty cycle, work from there.
I would leave the injectors alone until you dyno and determine the duty cycle, work from there.
Racer
Joined: Nov 2006
Posts: 380
Likes: 1
From: Janesville Wisconsin
The 60s were a pain in the azz to get running right. If you look on LS1 tech, almost everyone that runs them complains. I think I got mine dialed in good now. But they are on the big side....turbo here.
Depending on what you got... My friends car with a XE-R cam .595 lift i think, stock intake, headers,
ported heads, I think the stock injectors were running at 110% I put 42# injectors in and if I remember right its right around 60 -70% duty cycle now. Thats tuned with a wideband a/f around 12.7-12.8 at WOT pulling to a around 7400rpms.
Depending on what you got... My friends car with a XE-R cam .595 lift i think, stock intake, headers,
ported heads, I think the stock injectors were running at 110% I put 42# injectors in and if I remember right its right around 60 -70% duty cycle now. Thats tuned with a wideband a/f around 12.7-12.8 at WOT pulling to a around 7400rpms.
Last edited by Pwrtrip75; Apr 13, 2007 at 07:32 AM.
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