"Home-Brewed" Dyno Results Added Photo

I have been trying to "self" tune the F.A.S.T. XFI 2.0 for the last two years by driving, logging, and adjusting tables without much success.

I finally got feed up and on the recommendation of a member of the F.A.S.T. tech forum I called Gwantney Chevrolet in Jacksonville Arkansas for a dyno session.

Today was the day.

They are a 1 1/2 hour drive North of me.

I loaded "Home-Brewed" onto the trailer and headed North this morning.

After less then 5 minutes of tuning setting in the car in the lot, the tuner Ryan Stevens had the engine idling better then it ever had.

Ryan pull the car on to the dyno at 8 am and started tuning everything from scratch.

We found and fixed a few small issues that we could never had been able to find driving down the road.

Any way after almost 6 hours of tuning and tweaking the car runs absolutely fantastic.
It is a real MONSTER.

Keep in mind I requested that Ryan tune for drivability and not necessarily maximum horsepower and torque.

The final numbers at the rear wheels 431.3 HP and 552.5 ft lb .

View attachment dynosheet 1.jpg

View attachment Dart on Dyno.jpg

Herb