Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: mowerman71 on 21 February 2010, 20:06:31

Title: ecu change???
Post by: mowerman71 on 21 February 2010, 20:06:31

been offered a ECU from a 3litre v6 is it worth fitting to my 2.5 v6 and will it make any difference in performance , car running fine at the mo , but was wondering about changing it , any advice please , cheers , jon

Title: Re: ecu change???
Post by: biggriffin on 21 February 2010, 20:23:34

cant change ecu on omega. as they are matched to the car and imobilizer. etc.

Title: Re: ecu change???
Post by: Kevin Wood on 21 February 2010, 20:27:25

..and 2.5 and 3.0 ECUs have the same map in anyway, IIRC.

3.0 cams are a useful upgrade but the ECU won't make any difference.

Kevin

Title: Re: ecu change???
Post by: biggriffin on 21 February 2010, 20:31:52

Cant beat cubes. put a 3.2 in it.

Title: Re: ecu change???
Post by: TheBoy on 21 February 2010, 21:03:17

same ecu, not worth it

Title: Re: ecu change???
Post by: The Red Baron on 21 February 2010, 21:09:11

Quote

same ecu, not worth it

so, are the chips the same for the 2.5 & 3.0 then :-?

Title: Re: ecu change???
Post by: Kevin Wood on 21 February 2010, 21:20:50

Quote

Quote

same ecu, not worth it

so, are the chips the same for the 2.5 & 3.0 then :-?

I believe so.

Kevin

Title: Re: ecu change???
Post by: The Red Baron on 21 February 2010, 21:25:43

Quote

Quote

Quote

same ecu, not worth it

so, are the chips the same for the 2.5 & 3.0 then :-?

I believe so.

Kevin

ummm. thanks.

Title: Re: ecu change???
Post by: biggriffin on 21 February 2010, 22:28:51

the 3.0l chip has slightly more fuelling at the top end.

Title: Re: ecu change???
Post by: mowerman71 on 22 February 2010, 08:07:39

thanks all for the advice , think it will stay as it is , was just an idea , yep i like the idea of the cams being changed, cheers . jon

Title: Re: ecu change???
Post by: TheBoy on 22 February 2010, 08:42:37

Quote

the 3.0l chip has slightly more fuelling at the top end.

Don't believe it does - the ECU 'learns' the fuelling required.

Title: Re: ecu change???
Post by: Kevin Wood on 22 February 2010, 10:29:21

Quote

Quote

the 3.0l chip has slightly more fuelling at the top end.

Don't believe it does - the ECU 'learns' the fuelling required.

The MAF sensor tells it how much air is entering the engine and it calculates required fuel from that. The map can therefore remain the same. It's just that a 2.5 won't be pulling as much air due to the smaller cylinder displacement.

Kevin

Title: Re: ecu change???
Post by: Seth on 22 February 2010, 10:36:29

Quote

Quote

Quote

the 3.0l chip has slightly more fuelling at the top end.

Don't believe it does - the ECU 'learns' the fuelling required.

The MAF sensor tells it how much air is entering the engine and it calculates required fuel from that. The map can therefore remain the same. It's just that a 2.5 won't be pulling as much air due to the smaller cylinder displacement.

Kevin

Took the words out of my mouth Mr Wood!

Title: Re: ecu change???
Post by: 2woody on 22 February 2010, 11:33:38

I've just taken 3.0 cams out of my 2.6 and put the originals back in  - gained 4 HP

Title: Re: ecu change???
Post by: Marks DTM Calib on 22 February 2010, 11:43:09

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I've just taken 3.0 cams out of my 2.6 and put the originals back in  - gained 4 HP

You did something wrong then or have another issue.....when fitted to Mick Dundess, they gave around 17-18bhp with a buggered exhaust!