Omega Owners Forum - 2.5 TD auto question

saintnick Junior Member Offline Posts: 63 Portsmouth Hampshire Gender: Drives: 2001 3.0 V6 Elite	2.5 TD auto question 27. Sep 2007 at 14:08 does anyone know if the torque converter and flex plate from the TD omega was used in any other car? eg the 325 or 525 BMW or similar. i need to source one but am having trouble, and was wondering if another car is an option. cheers peeps
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tunnie Over Active Poster Offline Posts: 22520 London, W3 Gender: Drives: 2.2 CD (LPG'd) & BMW R1200 GS	Re: 2.5 TD auto question Reply #1 - 27. Sep 2007 at 14:11 in the Omega TD auto, the AR25 box was used. This is fitted in all 2.5V6 Omega's..... Not sure whats in the 2.0 Omega. So any parts sourced from a V6 Omega will be fine. The torque converter from the AR35 (Omega 3.0/3.2's) should also be fine.... Actually, sod it, just fit an AR35....
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saintnick Junior Member Offline Posts: 63 Portsmouth Hampshire Gender: Drives: 2001 3.0 V6 Elite	Re: 2.5 TD auto question Reply #2 - 27. Sep 2007 at 17:14 Is the diesel torque converter the same as the petrol one then?? i have an AR35 box with a 3.0 petrol torque converter will this go on the 2.5 TD engine??? it would be great if it did. cheers people
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IrmscherKris BANNED Offline banned due to bad trader references Posts: 1 Manchester Gender: Drives: Elite TD	Re: 2.5 TD auto question Reply #3 - 27. Sep 2007 at 17:17 Yes it works. I think it needs reprogramming though.
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saintnick Junior Member Offline Posts: 63 Portsmouth Hampshire Gender: Drives: 2001 3.0 V6 Elite	Re: 2.5 TD auto question Reply #4 - 27. Sep 2007 at 17:36 what if i got the gearbox ecu from a TD ??? anyone on here that can redo ecu for me?? i love this site
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sassanach Senior Member Offline Posts: 805 trowbridge Gender:	Re: 2.5 TD auto question Reply #5 - 27. Sep 2007 at 17:42 the diesal tc and the petrol tc are different.
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IrmscherKris BANNED Offline banned due to bad trader references Posts: 1 Manchester Gender: Drives: Elite TD	Re: 2.5 TD auto question Reply #6 - 27. Sep 2007 at 17:43 saintnick wrote on 27. Sep 2007 at 17:36: what if i got the gearbox ecu from a TD ??? anyone on here that can redo ecu for me?? i love this site Pull yer tongue out son I think The Boy isnt too far from you - maybe he can do it?
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IrmscherKris BANNED Offline banned due to bad trader references Posts: 1 Manchester Gender: Drives: Elite TD	Re: 2.5 TD auto question Reply #7 - 27. Sep 2007 at 17:45 http://www.omegaowners.com/forum/YaBB.pl?num=1152775772 HTH. Hows it comming along now?
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saintnick Junior Member Offline Posts: 63 Portsmouth Hampshire Gender: Drives: 2001 3.0 V6 Elite	Re: 2.5 TD auto question Reply #8 - 27. Sep 2007 at 17:48 so to clarify. i need a t/c from a TD, if anyone sees one or knows of one PLEASE let me know!! sorry for all the questions. and many thanks for all replies belive me, if this conversion works i will be posting one mother of a how 2!!!
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saintnick Junior Member Offline Posts: 63 Portsmouth Hampshire Gender: Drives: 2001 3.0 V6 Elite	Re: 2.5 TD auto question Reply #9 - 27. Sep 2007 at 17:48 IrmscherKris wrote on 27. Sep 2007 at 17:45: http://www.omegaowners.com/forum/YaBB.pl?num=1152775772 HTH. Hows it comming along now? update coming soon mate, we are getting there!! just need a t/c and flex plate!!!
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sassanach Senior Member Offline Posts: 805 trowbridge Gender:	Re: 2.5 TD auto question Reply #10 - 27. Sep 2007 at 17:53 the diesel torque converter has 3 bolts holding it to the flex plate, the petrol version has 6. they will both physically fit the gearbox but you cant make the petrol flexplate fit the diesel
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sassanach Senior Member Offline Posts: 805 trowbridge Gender:	Re: 2.5 TD auto question Reply #11 - 27. Sep 2007 at 17:55 i would also imagine they have different "stall"characteristics
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Kevin Wood

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Re: 2.5 TD auto question
Reply #12 - 27. Sep 2007 at 19:23

sassanach wrote on 27. Sep 2007 at 17:55:

i would also imagine they have different "stall"characteristics

Absolutely. It's the TC stall speed that defines the character of an auto box and it's matched to the torque curve of the engine, so likely to be radically different on a TD.

It'll take off like the proverbial off a shovel with a petrol TC stall speed, but road manners and economy would be appauling!

Kevin

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Re: 2.5 TD auto question
Reply #13 - 27. Sep 2007 at 19:38

tunnie wrote on 27. Sep 2007 at 14:11:

in the Omega TD auto, the AR25 box was used.

This is fitted in all 2.5V6 Omega's.....

Not sure whats in the 2.0 Omega.

So any parts sourced from a V6 Omega will be fine. The torque converter from the AR35 (Omega 3.0/3.2's) should also be fine....

Actually, sod it, just fit an AR35....

Cobblers

TD Torque converter is unique to the TD in the Omega range.

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Re: 2.5 TD auto question
Reply #14 - 27. Sep 2007 at 19:42

Just to clarify some things in this thread....

The gearbox (ideally AR35, but AR25 OK) can come from any other Omega.

The TC and the bellhousing on the gearbox MUST come from a TD car.

On earlier gearbox ECUs (pre 98), I believe the ECU is unique to TD (but would need to confirm), but later ECUs are the same as petrols, but run a different 'map' which can be put on via Tech2.

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