Thread: wheel ratio

Originally Posted by thai_tiger

just to clarify, my question is can the shift pattern be altered to suit the knew tyre size or does it have to be gear ratio change in the TC.

The simple answer to that is NO

Originally Posted by trout1105

The simple answer to that is NO

I think you mean No, and YES? (it's a double question)

Although I do recall from some time ago that there is a very expensive gear change thingamijig (ex UK?) that can reprogram gear change points in the TD5
There was also a post on using a D2 V8 ECU to obtain different change points, but I sold my D2 before completing my research.

Originally Posted by shack

The v8 uses a different ecu with vastly lower lockup points, and the American one has secondary mapping that can be selected if running the 4.6 vs 4

Cheers
James

but the usa one is no good here, or anywhere other than the usa, its programed for SAI...

the reason i ask is it would so much easier to alter it by programing, which would be easy to revert when required rather than exchanging TC. Thx for the input all

Originally Posted by gavinwibrow

I think you mean No, and YES? (it's a double question)

Although I do recall from some time ago that there is a very expensive gear change thingamijig (ex UK?) that can reprogram gear change points in the TD5
There was also a post on using a D2 V8 ECU to obtain different change points, but I sold my D2 before completing my research.

Compushift via Ashcrofts?

Ashcroft Transmissions

I'm running a seriously remapped td5 and even mine had trouble with the v8 auto ecu. It would require vnt , intercooler, lpg, and a wanton disregard for the smoke map.


So I wouldn't advise trying to run that one.

The compushift would be the "easiest" user programmable way to make big changes.

Some minor improvements can be had from changes to a couple of maps in the engine ecu, but the ideal solution would be to remap the auto ecu itself.

Cheers
James

I just put it in sports mode and thats a pretty big improvement for a mapped and intercooled Td5. Far more drivable and no charge.

Originally Posted by Slunnie

I just put it in sports mode and thats a pretty big improvement for a mapped and intercooled Td5. Far more drivable and no charge.

I think that's the opposite of what the OP wanted to achieve! But anyway...