[GonnaGetMe1]

Just got a New 2013 Mazda3 i Touring Skyactiv and was wondering if anyone knew of a tuner/programmer for it. Planning on 18" wheels. Not really sure how far the speedo will be off going from 16 205/55R to 18 225/40R. I'm sure it's enough to wanna re-calibrate. Any help would be appreciated.:blush 1:

 

[swerv0428]

There is not much out there for aftermarket support for the sky activ

 

[GonnaGetMe1]

Yeah....Haven't found anything myself, but was hoping someone smarter than me had. Can always go old school and do the math!!

OLD GUYS RULE!

 

[Frnchplayr15]

Yea thats a negative but sit tight its coning soon!

 

[color0]

Speedo will be fine, depending on tire. I've spec'd out a new set of tires for mine, the stock 205/55/16 EL400's are 25" dia, 834 revs/mile, and it so happens that 255/35/18 Michelin PSS are 25" dia, 832 revs/mile, so close it's practically negligible. 225/40/18 is a teensy bit larger than 255/35/18, but only barely, so I wouldn't worry about it.

As far as computer tuning goes... don't know anybody who has gotten past the Skyactiv's two-fuel-pulses-per-firing quirk. I don't even know if you can go standalone with this engine, it kind of depends how good the fuel injector control is, and even then, nobody has declared that they know how to tune the Skyactiv DI system.

 

[Allch Chcar]

It's only 0.8% taller, that's close enough for me.

Now, as far as tuning, I am very curious about ECU tuning for Corn and Premium. h34r: