Bigger pulley..... need tune?

[Mach1soldier]

Getting ready to detune the car a little so my wife can race it. Currently makes 9xx horsepower on e85.

d1x at 17lbs of boost
Built auto
1300cc injectors.

going from a 4.13 pulley to a 4,38.

Any issues running the same tune?

I figured I would log a pass or twoto be safe but just curious if anyone has done this

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[TGGT]

Shouldn’t be. I’m sure the maf is scaled to accommodate less boost and probably more boost as well, but always a good idea to check with your tuner and do some logging

 

[Jackson1320]

You will be fine

 

[80FoxCoupe]

Good to go

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