Thread: Discovery 2 transmission remap

Originally Posted by shack

I'll look up a wiring diagram later when I get 5 to double check.

This < Truspeed speedo correction installation - www.slunnie.com > is the guide that I followed for installation. Originally I fitted a Truspeed, but when that failed they were no longer available so a Hunter Di unit replaced it but in the same position.
Reading the comments on there it's on the SLABS output so the corrected signal should be received by all systems other than SLABS.

The unit was suggested to be placed by the manufacturer next to the speedo wire on the dash, which would result in only the speed being corrected, and not the other systems within the truck. Like Mark, I did not do this, and placed the unit directly after the SLABS computer before the speed signal branched off to the other systems such as the ECU and ACE computers.

Originally Posted by shack

So nothing can really be done about that other than a trans overhaul.

Is the converter locked when the MS lights come on?

Thinking about that question and the answer is probably no. The times it has come on is hard acceleration such as overtaking and here the trans kicks down, or, the very infrequent putting the welly in when taking off.

Drive with a moderate foot to ensure it does not happen with less aggressive throttle application due to not wanting it to happen such as driving up the steeper dunes last trip. AM still able to overtake safely and quickly, just have to moderate the foot more than I would like rather than getting past and then having to stop and restart...

Hi all,

As far as I’m aware, the sport mode is useful off road to maintain the selected gear, so it might not be entirely beneficial to nix it. Happy to be corrected though.

Wayne.

Originally Posted by super56r

Hi all,

As far as I’m aware, the sport mode is useful off road to maintain the selected gear, so it might not be entirely beneficial to nix it. Happy to be corrected though.

Wayne.

When in low range "sport" mode becomes "manual" mode, that wouldn't get changed as it works quite well I think.

I'm not really planning to change much low range stuff at all as I think it works well as is.

Originally Posted by RRT

Thinking about that question and the answer is probably no. The times it has come on is hard acceleration such as overtaking and here the trans kicks down, or, the very infrequent putting the welly in when taking off.

Drive with a moderate foot to ensure it does not happen with less aggressive throttle application due to not wanting it to happen such as driving up the steeper dunes last trip. AM still able to overtake safely and quickly, just have to moderate the foot more than I would like rather than getting past and then having to stop and restart...

I get this exact same thing with mine. Even with a rebuilt auto.

Originally Posted by super56r

Hi all,

As far as I’m aware, the sport mode is useful off road to maintain the selected gear, so it might not be entirely beneficial to nix it. Happy to be corrected though.

Wayne.

Have to say that the M mode in low range is fantastic. Spent a lot of time in M during the recent desert trip, frustrated more when the average speed was a bit too high for M 4th and having to change to Hi Range and the gear box 'slipping' in low gears.

An easy way to see how effective it is is when going down hill and having better engine braking, foot off the accelerator with the locked convertor in low range. This especially up in the high country down the steeper tracks, M1 and M2 barely require a touch on the brakes and maintain controlled progress.

Originally Posted by RRT

Have to say that the M mode in low range is fantastic. Spent a lot of time in M during the recent desert trip, frustrated more when the average speed was a bit too high for M 4th and having to change to Hi Range and the gear box 'slipping' in low gears.

An easy way to see how effective it is is when going down hill and having better engine braking, foot off the accelerator with the locked convertor in low range. This especially up in the high country down the steeper tracks, M1 and M2 barely require a touch on the brakes and maintain controlled progress.

X2 for M1 & M2 - that’s how I drive in the Victorian High Country, provides more control than Hill Descent Control and gives the brakes a rest.

Can anyone confirm if the converter locks in low range on acceleration?

I don't think it does from what I can see, but it will lock on decel if decel occurs over 2000rpm, but unlocks again at 1300-1500rpm.

As I said earlier, I can't see any reason to change low range.