Injector size for AI heads/cam setup?
Injector size for AI heads/cam setup? So I have a 1999 Camaro and will be having the following done to the motor. It will have a BBK 85 mm throttle body and intake. I would like to know what injector size to get so I can send all my info to Frost for a mail order tune so I can drive it to the tuner on the correct injectors. I could also run on my current tune with stock injectors, not sure if it will hurt it if I dont get on it. Any ideas on injector size?
•Ai 219cc HCR Full CNC Porting
•Compression Ratio increased to 11.3:1
•Ai 230° / 238° 113° LSA .600"/.600" Hydraulic Roller Camshaft
•GM OEM .051" Head Gaskets
•Typically manages 440-460rwhp SAE corrected
•Ai 219cc HCR Full CNC Porting
•Compression Ratio increased to 11.3:1
•Ai 230° / 238° 113° LSA .600"/.600" Hydraulic Roller Camshaft
•GM OEM .051" Head Gaskets
•Typically manages 440-460rwhp SAE corrected
I would say 38#'s or 41#'s for room to grow. I would like to mention a 255lph fuelpump might be something to start thinkin about, usaully the stock pump can handle about 450rwhp anything beyond that is pushing it.
I am currently installing AI H/C and a fast intake and I will be using fast 36# which are 41# in our rails. These injectors are also very easy to get the injector data for tuning purposes.
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i would grab a 255 pump (kit) and put it in, and put in 36lb injectors if you don't look at doing more. if you eventually end up doing more, the 36# will not be enough.
42# would give you growing room, and the 255 pump would provide plenty of fuel for them
42# would give you growing room, and the 255 pump would provide plenty of fuel for them
https://ls1tech.com/forums/fueling-i...ump-chart.html
check out RCENG and injector sizing.
if you don't plan on getting a blower or turbo grab some 36# injectors and you will be able to easily make 480RWHP and 440RWTQ with ~60% duty cycle.
if you think you will be doing a lot more mods later, I would get 42# injectors
it really depends on the power you are either capable of making with the setup you have (or are about to build) or what you will be building.
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
Tony Mamo told me that 36lb injectors would be plenty for my setup (Ported TFS 215s, RapTR cam, ls6 intake, rest of the bolt ons etc etc.)
I believe he said he ran 36lb injectors in his 383
Correct me if I am wrong
I believe he said he ran 36lb injectors in his 383
Correct me if I am wrong
even if its at 58psi you will be fine with those mods.
you will be fine with the 36# injectors
