I happened to meet John through Robispec recently while having his race suspension installed at Akuma. After a brief conversation, we ended up talking about tuning, data logging, and he let me know a bit more about the Accessport and what offers beyond its capabilities as a tuner. Being someone who keeps his Evo almost exclusively for HPDE/track use and having no gauges other than the pathetic factory units, I wanted to have an Accessport at the very least so that I could track my oil and coolant temperatures on the track.
That said, John being a person who previously worked for Cobb, was intimately familiar with the Accessport and someone interested in motorsport usage (Which is more important to me than peak power numbers), I let him tune my car.
I didn't want to make this thread until I had a chance to take it on the track and having done so, John went out of his way to tune for my application. He pulled some timing and focused on tuning for the sustained loads that you see at the track rather than making big numbers for short stints. I have been very impressed with the results as I was able to run 25 minute sessions in 77 degree heat without a tangible feel of power loss that I previously noticed with the car.
As I continue to familiarize myself with the unit, I look forward to data logging and really seeing more data than just seat-of-the-pants impressions.
Anyway, here are my numbers on a Mustang Dyno:
My only modifications are a Greddy Ti-C catback, Nisei upper intercooler pipe, and a Works air filter.
