24X with upgrades, need injector sizing help.
24X with upgrades, need injector sizing help. I'm in the middle of doing a 24x conversion and cam swap on my 94 LT1/T56 Z28. It has a set of mismatched injectors currently, and I'm wanting to buy a new set while I have it apart. What size do I need with this cam: 218/224 .570/.565 111 LSA? I know it's not a huge cam, but since there is better tech out there for injectors since 94, I'd like to know how to size them, if I even need too. I've looked at a few calculators on the web, but I get anything from 27 to 30lb. The engine is pretty much stock except for the cam and headers.
At your power level stock 24lb injectors are fine. I've had 218/228 hot cam and didnt get close to 100% duty cycle. My other car has a 224/230 cc503 and I doubt I'll have any issues with stock injectors.
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The yellow Bosch injectors I have are from a Crown Vic. I bought them from South Bay fuel injectors, so the have the extensions on them to fit the TPI. I want to find the injector data because I'd like to use them if I can run them at the LT1 pressure, but if not, I found these Bosch III at Injector Connection if I have to buy another set. I've requested the data for these to look over....
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From: Euless, TX
I'm in the middle of doing a 24x conversion and cam swap on my 94 LT1/T56 Z28. It has a set of mismatched injectors currently, and I'm wanting to buy a new set while I have it apart. What size do I need with this cam: 218/224 .570/.565 111 LSA? I know it's not a huge cam, but since there is better tech out there for injectors since 94, I'd like to know how to size them, if I even need too. I've looked at a few calculators on the web, but I get anything from 27 to 30lb. The engine is pretty much stock except for the cam and headers.
Last edited by Fast355; Jan 29, 2019 at 10:47 PM.
I've had Bosch 37# injectors in my car for about 12 years now. I put them in when I was cam only. Your tuner can change the pulse width I believe. In theory those 37's were way more infector than I needed at The time but they're also still in use right now with the new heads and ported intake.