AEM V1 vs Flash ECU? Which should I have?

[Greg E]

Maybe I'm just slow to come around but I can't bring myself to trust this virtual dyno stuff. I don't really care about accuracy (I think Trevor showed it's not very accurate) but is it at least consistent?

The EVO guys rave about it and have used it for years. While the numbers may not be exact (i have a good theory about why this is), it's the change in the curve that I look for. "Did 2 degrees here improve the line in this area or not?" It is accurate enough for that assuming you use the exact same stretch of road to tune on. I even tell my customers to not get hung up on the numbers. In fact, in my thread about the billet dr650's in my old 99, I think I even posted the same thing.

Over the winter I came up with an airflow & AFR HP calculator setup for tuning cars. It should be much more accurate numbers-wise. According to the numbers (assuming data from my stock MAF is accurate) my completely stock car should be putting down 284whp (which seems high for just a boost increase with more timing and less rich tune). I had plans to head up to GZP and dyno the car a few weeks ago to see if this is accurate, but Hans had to bail. Even if the car doesn't put down the numbers due to a variance in load the dyno puts the car thru, the change in airflow should be reflected in the calculator. Its my hopes the numbers will be close!

[ChargerX3]

I should be hitting the Dyno early next month. The plan is to do stock pulls with the factory ecu and maf. Next, swap out the ecu for the 99VR4, make some corrections do a pull. Then finish it off with a Evo MAF swap.