I'm not sure. I know very little on the ATI kit other than it's roasted a couple motors. I've always been more of a fan for Vortechs anyway.

The general consensus in the tuning world, is that FMUs are a cheap fix

 

Z1, havent forgot about the little experiment I said I would do. Was in the blown t/a on friday. Fuel pressure at idle with vacuum was 42psi. With no vacuum it was 52psi. However, the T-connector for the boost gauge broke prior to my arrival so I was unable to test the FP under full throttle. Owner is fixing . Will do a full throttle run and report fp readings

 

Cool cool...will be interesting to see.

That means though you are running higher than stock base fuel pressure - not a bad thing to do if you have slightly undersized injectors.

What ecu does the car run?

 

Sorry to interrupt, but I just have to say I'm enjoying this thread immensely.

Very educational -- I appreciate Z1 being so articulate and patient in his explanations. Keep it up!

 

yea slightly higher than stock. Actually, these injectors suffice. Car was running rich before with this setup
ECU was reflashed with a desensitized knock sensor, pulse width decreased in lower/mid rpm ranges

t connector is installed. Just have to run car now

 

Sounds good - curious to see what you find!

BTW, as an aside, what motor is this and what size injectors (and impedance) are they?