Duty cycle on stock injectors??
- Thread starter Koenigturbo
- Start date
The duty cycle changes all the time depending on your RPM and load 
....Don't run them higher then 80%
....Don't run them higher then 80%
Thanks that's the answer I'm looking for....annoyingrob said:The duty cycle changes all the time depending on your RPM and load
....Don't run them higher then 80%
80% is a good rule of thumb. Also, another is aprox 1HP per 1cc of fuel, so your stock, cleaned and flow matched injectors should safely handle 352HP.
hey Star,starscream5000 said:
I really appreciate your straight answers, your one very heplfull dude!!!
"Oh' if stock is 440 cc then would it be safe to run 425 h.p.??
425 is my h.p. goal (give or take) then,I should probaly stay with stock A.F.M. and not the Lexus one.
I don't understand putting in a A.F.R. aren't you still going to get what ever you injectors put out? EX: 440 cc's your only gonna get 440 cc's right? If i you only need just a little more then don't you adjust the injector pulse??
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Not safe IMO.
550 cc injectors (RC) at 80% duty cycle would be 440 HP.
580 cc injectors (PTE) at 80% duty cycle would be 464 HP.
550 cc injectors (RC) at 80% duty cycle would be 440 HP.
580 cc injectors (PTE) at 80% duty cycle would be 464 HP.
you can push more fuel pressure, but that's complicating things...
people have done far more than 440HP on 550's...
people have done far more than 440HP on 550's...