Xfi 2.0 question on lt1 - Page 3

john corcoran jr · 07-03-2021, 01:51 AM

I've never been called the brightest bulb in the box so being a newbie to actually running a computer car, I took an EFI class. In the class we talked about the IAC. How many racers back in the day had controlled vacuum leaks on their cars in an effort to get more air into the motor? The IAC is a CONTROLLABLE vacuum leak and you can fuel around with it. Another thing I learned was do NOT unplug the IAC while the power is on. It will blow the circuit board in the computer and yes, Fast is aware of this glitch. I know, it happened to my motor while it was on the dyno and I wasn't anywhere near it. It is amazing what we can do with these computers compared to an OEM unit.

07-03-2021, 01:51 AM	#21
john corcoran jr Junior Member Join Date: Oct 2003 Location: darien, il Posts: 54 Likes: 0 Liked 19 Times in 11 Posts	Re: Xfi 2.0 question on lt1 I've never been called the brightest bulb in the box so being a newbie to actually running a computer car, I took an EFI class. In the class we talked about the IAC. How many racers back in the day had controlled vacuum leaks on their cars in an effort to get more air into the motor? The IAC is a CONTROLLABLE vacuum leak and you can fuel around with it. Another thing I learned was do NOT unplug the IAC while the power is on. It will blow the circuit board in the computer and yes, Fast is aware of this glitch. I know, it happened to my motor while it was on the dyno and I wasn't anywhere near it. It is amazing what we can do with these computers compared to an OEM unit.