Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Hani A. on 06 March 2014, 12:43:30

Title: Upgrading Engine
Post by: Hani A. on 06 March 2014, 12:43:30
Hello to all:
I'm considering uprgading the Engine of my Omega (2003 2.2i Automatic)
Which is easier: to replace it with 2.5 V6 OR to 2.6 V6 ...  ??? what about wiring & ECU
Regarding the Gearbox: should it be replaced?
Title: Re: Upgrading Engine
Post by: zirk on 06 March 2014, 12:57:40
TBH, with all the work involved, would be easier to buy another Omega.

Edit:. Hmm, maybe not just seen your in Jordan.  ::)
Title: Re: Upgrading Engine
Post by: ted_one on 06 March 2014, 13:19:19
You beat me too it Chris,and co-incidently I've got a couple of nice 3.2's that could be in a container too Jordan in a very short time :y ;D
Title: Re: Upgrading Engine
Post by: 05omegav6 on 06 March 2014, 13:23:22
Could supercharge it with the minimum of fuss :-\ . Gm sold several models with a supercharged 2.2...

Might be easier to source the parts for instead of the traditional v6 route :-\
Title: Re: Upgrading Engine
Post by: chrisgixer on 06 March 2014, 15:18:52
If changing engines, fit a cheve v8 ls1, Ls2 or Ls3 out of a caprice/lumina/Holden comadore.

Should be a few in the scrap yards out there?
Title: Re: Upgrading Engine
Post by: tunnie on 06 March 2014, 15:29:31
Must be a good source of V8's out there? As above, if going to the hassle of engine changing, might as well make it worth it and go V8  :y
Title: Re: Upgrading Engine
Post by: chrisgixer on 06 March 2014, 15:35:26
It's easier on left hand drive cars as the left bank is offset forward. Just gives that extra bit of room between the headers and steering box.  :)
Title: Re: Upgrading Engine
Post by: cem_devecioglu on 06 March 2014, 16:07:26
TBH, with all the work involved, would be easier to buy another Omega.


definitely.. agreed..
Title: Re: Upgrading Engine
Post by: tunnie on 06 March 2014, 16:10:38
TBH, with all the work involved, would be easier to buy another Omega.


definitely.. agreed..

I suspect in Jordan, that is easier said than done  :)
Title: Re: Upgrading Engine
Post by: cem_devecioglu on 06 March 2014, 17:36:12
TBH, with all the work involved, would be easier to buy another Omega.


definitely.. agreed..

I suspect in Jordan, that is easier said than done  :)


iirc fuel is not that expensive in jordan so plenty of cheap v6-v8 must be around.. waste of time all that mechanical and electrical  work imo..
Title: Re: Upgrading Engine
Post by: cem_devecioglu on 06 March 2014, 17:38:29
http://jordan.hatla2ee.com/en/car/opel/omega

they dont care about engine size so its not mentioned ;D ;D ;D
Title: Re: Upgrading Engine
Post by: Hani A. on 06 March 2014, 22:20:16
Ok Guys I'll answer you all in on reply:
1) Fuel is not cheap in Jordan (1 Liter of Octane 95: 1.015 JOD= 1.035 EUR= 0.86 GBP)
2) The V6 Omega's are very few in Jordan & not known (except for Omega people like me..that's why Engine size is not mentioned in: Omega for sale Sir.. it is assumed to be L4), and it is hard to find one for sale in good conditions.
3) For me I prefer multi-cylinders & big capacity engines on supercharged or turbocharged 4-cylinders engines .. because I believe that in Multi-cylinders & big capacity Engine the performance is real while in small turbocharged Engine the performance is fake..
4) Believe or not upgrading & modifying different cars in Jordan is an ordinary & easy thing .. why??? easily because cars are very expensive in Jordan so it is cheaper to upgrade your car than buying originally & modern high performance car ... for example I bought my car recently with: 10,500 JOD (8,863 GBP,  10,706 EUR), upgrading it to V6 will cost me more or less 1000 JOD (850 GBP, 1000 EUR) ... in fact my mechanic (Opel specialist) have done this upgrading for Omega several times without any problems.
5)I don't like another car Engine on my car ... I want an Opel Omega Engine on my car.
6)I love to have a 3.0 or 3.2 V6 Engine on my Car but unfortunately I can't .. Jordan regulations allow me to increase the Capacity by only 30% of original capacity .. so the options are 2.5 & 2.6 engines.
7)I prefer 2.5 V6 Engine because according to Jordan regulations my car is in the category: 2001cc - 2500cc so if I install a 2.6 Engine the car will be moved to category: 2501cc - 3000cc & accordingly the yearly registration fees will increase (which is already high) ... but the problem is the 2003 Omega was produced with 2.6 Engine not with 2.5 Engine so I thought maybe it is easier to install the 2.6 engine.

So again my friends:
Which is easier: to replace it with 2.5 V6 OR to 2.6 V6 ...  ??? what about wiring & ECU
Regarding the Gearbox: should it be replaced?

Title: Re: Upgrading Engine
Post by: Andy B on 06 March 2014, 22:34:50
Ok Guys I'll answer you all in on reply:
1) Fuel is not cheap in Jordan (1 Liter of Octane 95: 1.015 JOD= 1.035 EUR= 0.86 GBP)......

That is cheap  ::)
1 litre of petrol here is around £1.35   :(

Sorry, can't really answer you conversion question though  :-\
Title: Re: Upgrading Engine
Post by: 05omegav6 on 06 March 2014, 23:09:45
Given the choice, go with the 2.6 :y
No secondary injection/idle control valve/egr valve.
Better exhaust manifolds against the 2.5, a smidgen more torque and power

As for gearbox, either manual or an AR35 to replace the AR25 fitted to the 2.2 :y
Title: Re: Upgrading Engine
Post by: shadi on 07 March 2014, 20:18:42
I am Shadi alomari from Irbid-Jordan.
The reason for engine upgrading that you need more powerful car....which is understood.
But  as you said you are not allowed to do that due to shit regulation.
I am facing the same problem with my omega 2.2.
So the best choice for you is the super charger if you can get one from GM.
Title: Re: Upgrading Engine
Post by: Hani A. on 07 March 2014, 20:31:03
I am Shadi alomari from Irbid-Jordan.
The reason for engine upgrading that you need more powerful car....which is understood.
But  as you said you are not allowed to do that due to shit regulation.
I am facing the same problem with my omega 2.2.
So the best choice for you is the super charger if you can get one from GM.

Hello Shadi welcome Eben 3ammi
You know you can as I said install a 2.5 or 2.6 V6 Engine without braking the regulations .. it is a nice powerful engine and it is available in Amman & Irbid with its Gearbox & price is reasonable ... but my question was which is easier for 2003 Omega: 2.5 or 2.6