Changing from a 2bar map to a 3bar map?

[onfire]

If everything has been tuned with a 2bar map and you install a 3bar map, is the 0 - 2 bar tune valid? Part throttle, etc. Just change the scalar and tune for the cells above the original 2bar tune? TIA

[joecar]

I believe that is the case... but TTT so someone can confirm.

[9secVette]

Thats what I have done and the car seemed to run the same in each cell.

[onfire]

Thats what I have done and the car seemed to run the same in each cell.


That's good info since you've changed from a 2 to a 3bar.

Looks like #12223861 is the best Delphi 3bar out for low end resolution. It reads down to 40kPa....others only read down to 50kpa.

[onfire]

Oh GAWDDDDDDDDDDDDDDDDDDDD

Fire shooting out of the tailpipes.....roasted 2 pet kittens












Actually all is good. Biggest tip is to get the scalar set to key on engine off to your actual kPa. It was only a little richer than the 2bar at part throttle. Dead on at WOT. Drove great on the 2bar tune....I'll fine tune it tomorrow.

Delphi 3bar part number 12223861 sold by Speed Inc under the FAST brand and many others...great low end resolution.....don't waste your time or money on a 2 bar map like I did.