42# or 36# injectors
Thread Starter
Teching In
Joined: Sep 2007
Posts: 19
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From: Kingfisher, Oklahoma
42# or 36# injectors what injectors should i get since im going to be getting new heads? i was thinkin about the 42# ones in case i decide to hook the nitrous back up but would it run fine with out nitrous as long as its tuned properly? also what brand should i get?
thunder racing cam-230/236 .592/.602 112 LSA
fast intake-92mm
fast throttle body- 92mm
patriot gold valve springs
thunder racing hardened push rods
strange S60 rear end
411 gears w/ easy locker
35 spline axles
BMR springs
BMR panhard bar adjustable
BMR adjustable torque arm
txtralia clutch
upgraded flywheel
Z06 hydraulics for clutch
steel driveshaft
mti airlid
pro 50 shifter
pacesetter headers
3" y pipe w/ cut outs and slp loudmouth
nitto 555Rs
thunder racing cam-230/236 .592/.602 112 LSA
fast intake-92mm
fast throttle body- 92mm
patriot gold valve springs
thunder racing hardened push rods
strange S60 rear end
411 gears w/ easy locker
35 spline axles
BMR springs
BMR panhard bar adjustable
BMR adjustable torque arm
txtralia clutch
upgraded flywheel
Z06 hydraulics for clutch
steel driveshaft
mti airlid
pro 50 shifter
pacesetter headers
3" y pipe w/ cut outs and slp loudmouth
nitto 555Rs
Like I said in the previous thread: 36 lbs for your current application, but if you decide to add on Nitrous or pack more power, 42's are necessary. Maybe a new fuel pump as well.
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I see most people saying the 36's are easier to tune with, while the 42s will hold up to more power, they might give rougher idle, etc. Also, are you still running a stock fuel pump?
What % are your current injectors running at? I'm bouncing around the 90% range now, running on straight motor... which is why I'm looking to upgrade. The new Kooks really opened things up on the top end. I went from low 80%'s to 90% at 6200RPM. Don't want to chance 90% duty AND spray 150HP thru it, wet or not.
-Eagle
What % are your current injectors running at? I'm bouncing around the 90% range now, running on straight motor... which is why I'm looking to upgrade. The new Kooks really opened things up on the top end. I went from low 80%'s to 90% at 6200RPM. Don't want to chance 90% duty AND spray 150HP thru it, wet or not.
-Eagle
Last edited by Eagle02; Mar 24, 2008 at 11:03 AM.
, the same injectors GM used for the ASA motors. Great injectors that are ~40 lbs. in an LS1. 
what injectors should i get since im going to be getting new heads? i was thinkin about the 42# ones in case i decide to hook the nitrous back up but would it run fine with out nitrous as long as its tuned properly? also what brand should i get?
thunder racing cam-230/236 .592/.602 112 LSA
fast intake-92mm
fast throttle body- 92mm
patriot gold valve springs
thunder racing hardened push rods
strange S60 rear end
411 gears w/ easy locker
35 spline axles
BMR springs
BMR panhard bar adjustable
BMR adjustable torque arm
txtralia clutch
upgraded flywheel
Z06 hydraulics for clutch
steel driveshaft
mti airlid
pro 50 shifter
pacesetter headers
3" y pipe w/ cut outs and slp loudmouth
nitto 555Rs
thunder racing cam-230/236 .592/.602 112 LSA
fast intake-92mm
fast throttle body- 92mm
patriot gold valve springs
thunder racing hardened push rods
strange S60 rear end
411 gears w/ easy locker
35 spline axles
BMR springs
BMR panhard bar adjustable
BMR adjustable torque arm
txtralia clutch
upgraded flywheel
Z06 hydraulics for clutch
steel driveshaft
mti airlid
pro 50 shifter
pacesetter headers
3" y pipe w/ cut outs and slp loudmouth
nitto 555Rs
what power are you going to be making?
I have a sticky under this section that you should please check out. it will tell you what size injector you need to get.
it goes all into duty cycle and injector sizing. if you need help on it just PM me
