Do you think there is room for improvment for an unmodified TPI engine by programming the prom to optimize the driveability and throttle response over emissions and fuel mileage? Glenn has spoken of optimizing WOT operation of a substantially stock engine, but I am referring here to "around town" conditions driveability.

 

I'm pretty sure Glenn has mentioned how much better his fuel mileage and around town drive has improved. Yeah, I'm positive he has. Just don't expect to get Glenn's results in the first week you start to do your own prom and you'll get them too.

 

If your willing to settle for what the average driver calls good, then you'lll never notice anything different. If thou you want the best, and taylor it to your way of driving, then you'll wonder why folks even drive cars with stock chips.

The oem chips are designed to work under a worst case scenario. And they do that well. The trade off is that they don't do anything really well (pre 95).