I mean earlier shifts, yes. On my D2 it's around 20 to go to 2nd, 40th to go to 3rd and 60 for 4th. Or something like that. Getting those shift points altered would be first prize, like 15, 30 and 50 for instance.Quote:
Originally Posted by shack
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I mean earlier shifts, yes. On my D2 it's around 20 to go to 2nd, 40th to go to 3rd and 60 for 4th. Or something like that. Getting those shift points altered would be first prize, like 15, 30 and 50 for instance.Quote:
Originally Posted by shack
But why would you want that?
It would have no effect on the operation of the car at all.
Those speeds are on light throttle and really who cares what it does just poodling around?
Regards PhilipA
PS I would like to have 3rd lockup at say 68 kmh instead of 70 and 4 lock at say 78 as then I wouldn’t have exceed common speed limits to lock.
BUT there are already some circumstances when It locks early in 3 like going up a hill.
I think the subject is complex and the outcomes may be unpredictable.
Yeah it does.. in a big way too.Quote:
Originally Posted by PhilipA
As I mentioned earlier, and mind you this is on a mapped TD5 ... locking 3rd in the low 40s(~ 42-43ish) is so much more relaxed when light throttling. This can be around town, or even on a rough track.
It stays locked 'appropriately', in that just a small amount of boot gets you accelerating well using the greater torque that the mapping offers, without the additional 500-1000extra RPM and hence relying on the torque converter to do the work.
But a short sharp jab on the right pedal can unlock the torque converter easily enough if you need more revs too.
The other side of the point I make with regards to the brothers' TD5, it has a horrid exhaust system that just makes noise .. no rear muffler. So it sounds(feels) even more fussed I reckon than std.
I'm hoping in the next few weeks(work allowing) I'll get onto the exhaust fixing it needs.
Yes, there is a number of them. Listed in order of earliest version to latest that supersedes that part number:Quote:
Originally Posted by johnp38
For low compression traction control:
UHC100230
UHC100350
UHC000020
IGG000050
For high compression traction control:
UHC100260
IGG100020
IGG000010
IGG000040
UHC100240
UHC100360
UHC000010
For high compression - not sure why 'traction control' not mentioned with:
UHC500010
No description - Td5 perhaps?
UHC100250
IGG100010
IGG000060
IGG000070
It might be worth you trying IGG000050 the updated version of that one...Quote:
Originally Posted by johnp38
looks to be the third revision of For high compression traction control. Was replaced by IGG000040.Quote:
Originally Posted by johnp38
Also For high compression traction control. I believe this to be the version that superseded your IGG 000 010 unit.Quote:
Originally Posted by johnp38
I found this Question re D2 ECU for auto V8 - or TD5? old thread on it. Reading through it would seem that I purchased and tried UHC500010 which is for high compression with no mention of traction control (Shack has it now). I'll keep an eye out for a low compression unit (there is none currently listed on eBay) and consider trying again someday soon...
In an e-mail to Shack I made the following complaint about it:
Quote:
It was last November/December that I tried out the V8 Auto Controller ECU. I don’t really remember the details but I went back over the previous e-mail that I sent you on it and it looks like the vehicle ran sluggish and seemed to need the accelerator pedal pushed more in order to get up to or hold speed. I removed it pretty quick after originally fitting it due to how much worse the vehicle drove.
No more playing around with v8 tcu until i get off my butt and put the V8 torque converter in.
Won't be buying any more either , I think between ak83 and mylesaway and others it's been a case of low comp bit better around town but they are all too touchy on the highway or hard acceleration (too quick to kick down and hold on too long)
So...
Been doing further work on TCU remapping for the D2.
And it's got me wondering, what changes would owners like to see?
Different TCC lockup speeds?
Different shift points?
At this stage I'm open to suggestions which will help my own fine tuning, and hopefully settle on a reasonably happy "stock" setup.
Cheers
James
Hi James.Quote:
Originally Posted by shack
My long term bugbear is having to get to 80 to engage 4th lockup. I do a fair bit of 70kmph quiet cruising on relatively flat sand dunes (Perth) and the revs in 3rd can be just high enough to annoy. I did purchase one of wholesale automatics (Vic) lockup kits a few years ago, but my local auto trans guru then said whatever you do, don't fit it! (anyone want one going cheap). If I could engage 4th lockup at about 68, I'd be a happy vegemite, assuming I still have accelerator and/or manual over-ride control to flick back down a gear.
Not going to comment on power/torque issues - too many experts on that already.
68 can be done, I guess the issue is the torque produced at that RPM.
I'm thinking that would be too low for a stock tuned engine.
I might have to try it here.
I guess if it is too low you've always got kickback to use.
I have been back on a stock tune for months (too much of a temptation to drag with other 4x4 with my experimental power tune), with the V8 TCU in it locks up at 60 on mild throttle flat road doing about 1350 rpm, and moves nicely when putting foot down mildly (to reduce the oversensitive kickdowns) so I honestly believe there are too many untested/unqualified assumptions that HD torque converters need a tune because since mine is pulling ok with converter locked it is no different than being loaded with a lower stall converter.Quote:
Originally Posted by shack
Since I assume you have got into the actual TCU settings I would (for a Td5) blend the early upshifts of the V8 controller with the better suited kickdown settings of the Td5 controller to stop the oversensitive kickdowns and hanging in gear revving out but retain the early upshifts. If you can do it that would mean you should be able to load up any TCU (V8 or Td5) with the same tables and both do the same shifting.
Jeez, I might even pay you to do my TCU instead of putting in the time to do it myself (pffft.. as if I could)
I'm getting there...
Does anyone have any ideas for re appropriating sport mode?
Cheers