Thread: MSRA Back to the 50’s

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Very astute observation. I think the key difference however is the use of the application. I’ve actually been running it a little over a year. The first few months I relied on the Holly self learning feature which seriously operated the motor within very loose bounds of tolerance, optimizing the engine variations to sensor inputs to a wider range of settings. When I got to an experienced tuner, we discovered the self learning feature does not smooth operating boundaries and the curves, such as timing. Therefore the shift from cruising range AFR and Timing has a sharp climb to the WOT settings. The parameters were correct, but getting there was ugly. With the experienced tuner touching adjustments such as the timing curve went from a stair step motif to a smooth curve, same for AFR. I could go back to the tuner and tell him I want more Horsepower and he could turn up the adjustments to make it happen, knowing I would lose economy. I could ask for more economy and he could turn up the mileage but there would be a corresponding drop in horsepower. This is no different than the tune you get in a new car being optimized for economy and emissions. I have not seen it to be uncommon to pick up 50+ RWHP in a new car tune.

In this case there was a trade off between being able to idle around the park in the heat at a very low speed and matching a C7 Z06 in a high speed third gear pull on the way home. The good news is I do not face annual emissions testing else I would imagine I would need a separate tune, which I have BTW.

Bottom line is your point is spot on...its all about fuel air and spark