It almost seems like sacrilege, but it is a pleasant surprise in the 0-60 range with the lower gears. I only road tuned it with the Accessport boost display to be about 1 pound over max boost in 4th without the MBC. Haven't noticed decreased drivability issues or thrown a DTC or CEL. It is running about 2 pounds higher in 1st 2nd and 3rd and a worthwhile trade off in safety from my ignorant point of view. Worst case scenario and I get to by a new turbo, engine, or tranny. :)

Originally posted by Rex Ruther
Worst case scenario and I get to by a new turbo, engine, or tranny. :)

...for 15-25hp. ;) Is it worth it? :D

Same issues apply for a stock car + MBC. Watch PTFB. :D

PTFB is the main thing to watch out for. Although the reflash runs more boost at part throttle than the stocker, an MBC will still give you a lot more boost at lower throttle position than the reflash. Also listen for pinging, although with 93 octane, I doubt it will be an issue.

-- Ed

Originally posted by mexicanpizza
...for 15-25hp. ;) Is it worth it? :D

Same issues apply for a stock car + MBC. Watch PTFB. :D

I need an excuse to get deeper into this project. ;)

total newb q here......what is PTFB?

Originally posted by abqkid
total newb q here......what is PTFB?

Partial Throttle Full Boost


Basically too much boost from the MBC, without enough fuel to compensate for it.

alright thanks. can you see ptfb with a reflash or not since boost is now intergrated with fuel as opposed to just a MBC?

Originally posted by abqkid
alright thanks. can you see ptfb with a reflash or not since boost is now intergrated with fuel as opposed to just a MBC?

With the Accessport, you can see the boost the ECM sees in real time. I have not hit full boost at partial throttle, FWIW. :)