Quote:
Originally Posted by gtobird
That's the kind of inventiveness I was hoping to see. How is it for reliability, performance and gas mileage compared to carburetion?
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Mileage improved 10% (from 10 to 11 mpg), but the biggest improvement is the drivability. Hot or cold, A/C on or PS pump at full lock, in Drive or neutral, none of that matters thanks to the idle air motor. With a big street cam, any of the above messes with the precarious balance of idle settings on a carb, and that just all goes away with EFI. Plus I can park the car for 4 months and it will start like it was last run yesterday.
Performance-wise it's about a 10th quicker in the 1/4 than the best carb setup I ever had (on a Street Dominator), and I spent a lot of time tuning that before the EFI. Most of that 1/10th is probably due to my home-made manifold rather than EFI though.
Another cool thing is N2O. There's a nozzle in the intake duct upstream of the throttlebody and the ECU increases pulsewidth and retards timing while spraying. Really nice to tune that way, although you'll need an aftermarket ECU to do that.