rel3rd

iTrader: (43)

Obviously, my brand new GM ZR1 3 bar MAP sensor will be worthless (to an extent), after the turbo is removed.

Is there any reason why I cannot just modify/TUNE my HPTuners 3 bar SD Custom OS to run the car Naturally Aspirated?

Injectors, Fuel system, Transmission, Engine displacement, gearing, etc....is all remaining the same...just the turbo is getting removed.

Should I just RE-TUNE the car, leaving the current OS intact?
Or, what?

I plan to remain SD, but instead of open loop, will probably run closed loop Speed Density...

I imagine if I decided to re-install a MAF, that I'd need to switch back to a 1 bar MAF OS?

JoeNova

You can run N/A in a 3 bar tune. You just normally lose some table resolution.

rel3rd

iTrader: (43)

I assume keeping the brand new GM 3 bar MAP sensor will also be fine? I remote mounted it when I got it, and since it seems to work much better than the 2 previous aftermarket versions, I really don't want to get rid of it.

gametech

iTrader: (1)

If you correctly tuned your 3bar sd setup, the only thing you should have to change is your VE table. The freer flowing exhaust not going through a turbo turbine should give you somewhat higher VE when you go NA.

rel3rd

iTrader: (43)

Thanks for the reply.
That's what I was figuring/hoping. I just wanted to make sure there was no weird stuff going to happen, since nobody ever (by choice) goes backwards on power output...lol.