at what point do u need better injectors?
Thread Starter
TECH Enthusiast
Joined: Aug 2006
Posts: 734
Likes: 2
From: Hamlin ny
at what point do u need better injectors? hey guys so quick question, im planning on doing a cam swap this winter and my parts list is growing, as of right now i am deciding between the tsp 228r and the tsp v3. i plan on upgrading EVERYTHING possible to bring out the most in the cam but im curious between those two cams would i need to upgrade the fuel injectors?? i mean at what point should you consider upgrading them?
Launching!
Joined: Apr 2011
Posts: 253
Likes: 1
Cam only you may be able to get away with stock injectors. Add some good flowing heads and chances are you'll need some bigger ones.
Whether you need bigger injectors or not is determined by injector duty cycle. You don't want your injector duty cycle maxing out ir coming close to maxing out. Anything over 80% and you should consider bigger flowing injectors.
Your tuner will be able to tell you what the duty cycle is at. A lot of times it's better to upgrade to bigger injectors before getting tuned, otherwise your tuner may have to charge you again to get it re tuned
Whether you need bigger injectors or not is determined by injector duty cycle. You don't want your injector duty cycle maxing out ir coming close to maxing out. Anything over 80% and you should consider bigger flowing injectors.
Your tuner will be able to tell you what the duty cycle is at. A lot of times it's better to upgrade to bigger injectors before getting tuned, otherwise your tuner may have to charge you again to get it re tuned
Thread Starter
TECH Enthusiast
Joined: Aug 2006
Posts: 734
Likes: 2
From: Hamlin ny
Cam only you may be able to get away with stock injectors. Add some good flowing heads and chances are you'll need some bigger ones.
Whether you need bigger injectors or not is determined by injector duty cycle. You don't want your injector duty cycle maxing out ir coming close to maxing out. Anything over 80% and you should consider bigger flowing injectors.
Your tuner will be able to tell you what the duty cycle is at. A lot of times it's better to upgrade to bigger injectors before getting tuned, otherwise your tuner may have to charge you again to get it re tuned
Whether you need bigger injectors or not is determined by injector duty cycle. You don't want your injector duty cycle maxing out ir coming close to maxing out. Anything over 80% and you should consider bigger flowing injectors.
Your tuner will be able to tell you what the duty cycle is at. A lot of times it's better to upgrade to bigger injectors before getting tuned, otherwise your tuner may have to charge you again to get it re tuned
well right now i plan on going with an ls6 intake and some ported 243 heads with either of those cams would those mods justify getting bigger injectors with either of those cams?
Up
Grade
I hit 452 by the skin of my teeth. I even had 42#'ers on the car when we swapped on the dyno, and got the gracious news that one was dead. It sucked, and we tuned what we could "safely"
Grade
I hit 452 by the skin of my teeth. I even had 42#'ers on the car when we swapped on the dyno, and got the gracious news that one was dead. It sucked, and we tuned what we could "safely"
Teching In
Joined: Sep 2012
Posts: 23
Likes: 0
From: Greensboro NC
I would up grade, I maxed out my stock injectors with a cam, 243s and intake. Since you already will have to tune the car, there isnt no point in tunning it two times because you findout your stocks are not workingfor you, save money in the long run!
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I'm obviously a little bias but I would definitely go with the v3. The cam paired up well with my 243's and actually has some street manners!
Im making 370whp no cam fast intake with other mods In Sig with dual 255s with hotwire kit and I'm at 90% duty cycle if I want a cam which I will ... I'm going to need injectors and I bought 8 GTP injectors for 65$ going to clean them up and throw them in !!
Same ones I have. Made by Bosch, white, 42# @ 58psi
https://ls1tech.com/forums/pcm-diagn...injectors.html
https://ls1tech.com/forums/pcm-diagn...injectors.html
WARNING- DO NoT EVEN START THE CAR WHEN uSINg LARGeR INJECTORS WITHOUT A TUNE...
Cam only and I was at 105 duty cycles at 5800 rpms. I got racetronic 42lb injectors. My tuner let me put them in real quik when the car was sitting on the dyno.
Cam only and I was at 105 duty cycles at 5800 rpms. I got racetronic 42lb injectors. My tuner let me put them in real quik when the car was sitting on the dyno.