I am running a comptech supercharger and like everyone else who buys these supposed complete kits my fuel curve is all over the place. I will be purchasing an E-manage to fix this. Running stock boost should I buy bigger injectors(440 or 550). I want to stay at a medium injector cycle. What cycle are stock injectors running?

Also, where should my air fuel ratio be? My fuel curve tops out in the 13's and dips up and down. Where is the happy medium?

Didn't have this problem when I supercharged my V8.

Thanks in advance.

 

If you want to stay medium duty cycle, you'll need at least 550 or 600 cc injectors. AEM EMS may be your best bet.

I have a set of unused Ultimate Racing 600cc injectors if you are interested.

 

ttt

 

I've had decent luck with 440cc RC's, on a stock boost (7.5psi)Vortech. Bigger injectors would be required if I were to up the boost. The 440's are at the limit now, running 55psi static fuel pressure. Given the lower boost of a stock Comptech, I would think the 440's would be sufficient.

 

Anyone else. Advice is appreciated.

 

i don't know if it's the same between turbo and SC, but I was told to get my air/fuel ratio to 12:1. maybe the same for you?

 

im installing a high boost pulley with my emanage soon. ill let you know how it works when i get a wideband o2 sensor

 

Hand made? How long have you had the injectors?