Omega Owners Forum

Chat Area => General Car Chat => Topic started by: The Red Baron on 31 December 2012, 19:02:33

Title: 2.0l auto diplomat to 3.0l auto
Post by: The Red Baron on 31 December 2012, 19:02:33
heres a little project i may be thinking about. dropping a v6 auto into a 2.0l auto dippy. what would peeps think of that.
what sort of problems would i be looking at here?.  :)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: VXL V6 on 31 December 2012, 19:46:53
Diplomats are nice cars but it seems a lot of work plumbing in a V6 when you could just put a gold top or 24V in and be able to source most parts to do so easily enough.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: The Red Baron on 31 December 2012, 19:53:06
Diplomats are nice cars but it seems a lot of work plumbing in a V6 when you could just put a gold top or 24V in and be able to source most parts to do so easily enough.
i understand what your saying andy, as i will have all the running gear from my mv6 saloon spare i was thinking. ;)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: biggriffin on 31 December 2012, 23:26:42
hardest part will be the ignition, v6 is coil pack carlton is dizzy, might need to talk to the LC boys on ABS, there was a chap in the manta owners who put a 2.5 in a manta a few years back.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: omega3000 on 01 January 2013, 11:26:57
heres a little project i may be thinking about. dropping a v6 auto into a 2.0l auto dippy. what would peeps think of that.
what sort of problems would i be looking at here?.  :)

Sounds good to me  ;)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Auto Addict on 01 January 2013, 11:29:47
heres a little project i may be thinking about. dropping a v6 auto into a 2.0l auto dippy. what would peeps think of that.
what sort of problems would i be looking at here?.  :)

Sounds good to me  ;)

Sounds headache stuff to me ;D
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: 05omegav6 on 01 January 2013, 12:24:50
If you search German Ebay with the words Opel Omega Irmscher there's quite a selection of 4.0 straight six engines/parts 8) if you're to do summat, might as well do it properly :y
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Murph on 01 January 2013, 16:21:22
It's been done but it has it's difficulties.
The engine will drop onto the standard 2.0 subframe but will rub a little on the bulkhead.
The looms can be spliced in but the fuel computer will not work.  It's likely though that the 2.0 loom will not have the pickup for the speedo, so you will either need to use the 2.0 box and cable speedo or use a dash loom and clocks from a six cylinder carlton.

The brakes and front struts will bolt straight in so no probs there.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: omega3000 on 01 January 2013, 17:36:49
Straight 6 in an omega is the other option  :y
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: The Red Baron on 01 January 2013, 17:45:32
It's been done but it has it's difficulties.
The engine will drop onto the standard 2.0 subframe but will rub a little on the bulkhead.
The looms can be spliced in but the fuel computer will not work.  It's likely though that the 2.0 loom will not have the pickup for the speedo, so you will either need to use the 2.0 box and cable speedo or use a dash loom and clocks from a six cylinder carlton.

The brakes and front struts will bolt straight in so no probs there.
mmm interesting, dont spose you know who did it per chance murph?.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Murph on 01 January 2013, 18:23:54
It was this one.
(http://www.mantacentral.co.uk/carlton/0069.jpg)

The chap that built it goes by the name of 'Mantaray' on a few forums, and has posted a link to CRC Classics in Coventry (www.crclassics.co.uk). Apparently it was built using parts from a previous V6 Manta conversion so probably the same as the one mentioned above.

(http://www.mantacentral.co.uk/carlton/0096.jpg)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: 05omegav6 on 01 January 2013, 18:33:50
Looking at the space in front of that engine I would be thinking at least 3 litres and two cylinders bigger :y
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Murph on 01 January 2013, 18:39:06
That's been done too!   :y

(http://www.engelund-racing.com/bilder/omegav12/omegav12_3.jpg)

That's a BMW 5 litre V12 in a Carlton estate!
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: 05omegav6 on 01 January 2013, 18:46:21
 8)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: The Red Baron on 01 January 2013, 18:46:54
cheers murph.  ;)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: omega3000 on 01 January 2013, 21:54:53
That's been done too!   :y

(http://www.engelund-racing.com/bilder/omegav12/omegav12_3.jpg)

That's a BMW 5 litre V12 in a Carlton estate!

Very nice  :)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Kevin Wood on 01 January 2013, 22:07:46
The 3.0 V6 engine management system doesn't rely on that many connections into the main body loom, so I would transfer engine, engine loom and ECU with all ancillaries as one. You then need 12v feeds, immobiliser, diagnostic connection, fuel pump wiring mated with the car's loom, which shouldn't be too hard.

Engine ECU might miss the speed signal from the ABS and perhaps the torque reduce signal from the TC/Autobox but as long as that's wired in the inactive state it shouldn't cause a problem.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: bigegg on 01 January 2013, 22:55:57
you'll need to swap the ar25 gearbox in the dippy to an ar35, cos otherwise you'll break it.

My 24V diamond had an ar25 fitted, and it only lasted about 5,000 miles :.(
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: 2woody on 01 January 2013, 23:43:33
this is all reasonable easy.

you'll need to replicate the Omega inside the Carlton if you get whta I mean.

this means that the engine, engine controls, auto box and controls and the ABS must be transferred. But as long as you make sure you carry across all of the parts then you'll be fine.
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: Kevin Wood on 02 January 2013, 00:59:23
you'll need to swap the ar25 gearbox in the dippy to an ar35, cos otherwise you'll break it.

My 24V diamond had an ar25 fitted, and it only lasted about 5,000 miles :.(

Oh, no driver involvement? Seems like an ideal opportunity to add that. ::)
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: 05omegav6 on 02 January 2013, 02:11:02
you'll need to swap the ar25 gearbox in the dippy to an ar35, cos otherwise you'll break it.

My 24V diamond had an ar25 fitted, and it only lasted about 5,000 miles :.(

Oh, no driver involvement? Seems like an ideal opportunity to add that. ::)

If you're to do summat, then you might as well do the whole job ;D
Title: Re: 2.0l auto diplomat to 3.0l auto
Post by: The Red Baron on 03 January 2013, 11:15:26
this is all reasonable easy.

you'll need to replicate the Omega inside the Carlton if you get whta I mean.

this means that the engine, engine controls, auto box and controls and the ABS must be transferred. But as long as you make sure you carry across all of the parts then you'll be fine.
cheers woody, i will look into this.  :)