Changing Ring & Pinion After Mapping Session?

[HD_Goofnut]

After a car has been mapped is it possible to change the ring & pinion for a different ratio without having to go through the mapping process again? I'm guessing not but would like some clarification before looking further into this.

[stevieturbo]

After a car has been mapped is it possible to change the ring & pinion for a different ratio without having to go through the mapping process again? I'm guessing not but would like some clarification before looking further into this.

Unless it is an extreme change, then very little work if any would need changed in the ecu.

The only one that may really need looked at would relate to road speed, but would depend where your road speed signal comes from.

[HD_Goofnut]

Unless it is an extreme change, then very little work if any would need changed in the ecu.

The only one that may really need looked at would relate to road speed, but would depend where your road speed signal comes from.

Looking to change from a 3.769:1 to a 3.266:1, not sure if that would be classed as extreme? How easy would this be to sort out?

[stevieturbo]

Unless it is an extreme change, then very little work if any would need changed in the ecu.

The only one that may really need looked at would relate to road speed, but would depend where your road speed signal comes from.

Looking to change from a 3.769:1 to a 3.266:1, not sure if that would be classed as extreme? How easy would this be to sort out?

I wouldnt expect it to make a huge difference

[HD_Goofnut]

I wouldnt expect it to make a huge difference

That good, thanks

Can anyone from Syvecs chime in just so I know I'm safe

[stevieturbo]

I wouldnt expect it to make a huge difference

That good, thanks

Can anyone from Syvecs chime in just so I know I'm safe

Without knowing anything about the car, the usage, how it has been mapped etc etc etc, it is impossible to say 100% it will not need any work.

Doesnt matter who you ask, although of course the person you really need to ask is whoever mapped it in the first place.

But there isnt huge reason for a diff swap alone and no other changes to require anything major.