Thread: Discovery 2 transmission remap

Well done Shack. What I didn't like about my TD5 Auto was when I wanted spirited acceleration it would start of well but as I lifted off the throttle a bit, trying to keep it in boost or get it to go up one cog it felt like it'd go up 2 cogs or maybe it went up one and then unlocked the torque converter, I ended up just holding the throttle to the floor so it would know acceleration was required.

Originally Posted by ozscott

Will it work with my 5 speed manual . Seriously though keen to see how you go. Cheers

The only thing that is going to work on your 5 spd is to change it to 6 spd.

Originally Posted by ozscott

Will it work with my 5 speed manual . Seriously though keen to see how you go. Cheers

Umm no.. but it might pull a bit more like one!

I do like the drive of the 5 speed, you know... Put it in 4th and floor it, and it's not trying to decide which gear to use of the 8 gears it "thought" it had , only to settle on valve bouncing in 3rd unlock, as the guy in the car you thought you were overtaking looks across at you as you fall back behind due to lack of drive firstly, and then shame...

Originally Posted by shack

To the other couple of questions, I'm not sure what stuff is permissable to answer here.

Either way the purpose of this thread was for some info on what can be done on the tech front, and hoping to garner information on what is seen as a weakness with the current setup.

I know what I don't like...

I'd like to know what don't you like..

If anyone wants any further info on procedure etc.. Probably best to PM me at this stage.

Other stuff should be fine here...I hope.

Cheers
James

Discuss anything about the remap, except how to buy or sell. My warning wasn't meant to stifle discussion on the modification, only the sale of, on this page.

Sounds like what a lot of people have long cursed about the 80k's lockup specially those of us who pull a trailer, wonder what the designers had in mind when they decided on the 80km lockup.as someone else asked is it an update via nanacom or send the ecu out.on another thread re v8 tcu into td5 will your remap solve those issues mentioned if i were to send you a v8 tcu for a td5.

Originally Posted by RANDLOVER

The only thing that is going to work on your 5 spd is to change it to 6 spd.

There's an idea. The 4.6 could comfortably pull a further overdrive gear mmm... Cheers

One question for James:

Do you totally redo the programming in the TCU?

That is, if you reflashed a v8 TCU, can it be used in a TD5 with the same programming as it would be if you flashed a TD5 TCU. Or does each engine type require it's own TCU type?

As an example of why this question is pertinent. Say someone wants to flash their TCU to try it out, but would rather test it first to see how it goes.
Wrecked V8s are far more common than wrecker TD5s, so to get a TCU out of a V8 is trivial, compared to locating one for a TD5.

To Lewy and AK83,

I totally re write the mapping on the ECU, I had thought about tuning individual software revisions, and have done a fair bit of work on doing it, but at this stage I'll stay away from that.

I have tested these TCU's:

4.6 NAS
4.0 low comp
TD5 EU2
TD5 EU3

And it would appear that the hardware is compatible, so theoretically any Discovery 2 GS8.87 TCU should be fine, which is great, as some have pointed out, the V8 is easier to source.

But no guaruntee on the ones I haven't tested!

The IC that needs re flashing is OTP - one time programmable, so it can't be done by the nanocom, even if it wasn't OTP it couldn't be anyway for several reasons, one being the nanocom not having the abilities.