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[lenny]

hello there.right then.i have just bought 2.5 estate.of which is a manuel.i have a 30 ltr  auto.i want to put that engine in the estate.the engine in that is had it.will the 2.5 flywheel fit the 30ltr.will the prop and rear axel be ok for the 30ltr.will the engine management be ok too.is it a good idea to prop from my 30ltr onto the estate.i be thankful if you would help me on this matter and put me right .before i start

[ngrainqey]

hello there.right then.i have just bought 2.5 estate.of which is a manuel.i have a 30 ltr  auto.i want to put that engine in the estate.the engine in that is had it.will the 2.5 flywheel fit the 30ltr.will the prop and rear axel be ok for the 30ltr.will the engine management be ok too.is it a good idea to prop from my 30ltr onto the estate.i be thankful if you would help me on this matter and put me right .before i start

to be sure i'd ask "markey mark" as he knows both 2.5 and 3.0's
or somebody else that does.
the prop should be fine as should the gearbox but you'll need the ecu from the 3.0 and also you'll need the spigot bush thing for the gearbox. a thing to consider-i dont know to be fair but you could ask about it. the 3.0 has about 60nm of torque more than the 2.5 so you might well need a 3.0 clutch
 

[lenny]

yeah i forgot about the clutch. well thankyou for coming back to me

[ballcock50]

That 30 ltr sounds a little large for the omega engine bay, there's a guy in one of my mags got a 27 ltr in rover, would love to see it once it's in. on a more serious note I was led to believe that an auto block has a different casting than a manual but cannot be sure. Tom

[lenny]

ok tom thanks for that.but the 2.5 and the 30ltr look the same

[JamesV6CDX]

Mechanically it will fit, but you'll need to fit a spigot bearing and bush if the donor is an auto, going into a manual. You'll also need to use the flywheel from the manual.

You may also need to transfer the ECU etc as the values are likely to be different

[lenny]

o right thankyou. well i am scraping my 30ltr to do this project.is the ecu different from a auto to a manuel

[ngrainqey]

you'll need to swap the ecu but wont need a gearbox ecu if the one your keeping is the manual (manuals dont have them) whats the bodywork like on the 3.0?
both manual and auto ecu's are the same

[ballcock50]

I thought just swapping the ecu's will cause the immobiliser to lock out, you also need to swap the other parts from the immobiliser if I'm correct

[lenny]

well the three doors are rusting from the windows and a fair of flaking rust inside the doors.my car is a saloon. always wanted an estate.but the bodywork is in fair nick

[iainb]

I seem to remember a guy in Germany selling  an ECU chip for the 3litre conversion of a 2.5 but that was  auto to auto or manual to manual.
 Checkout fleebay Germany for Opel Omega tuning chips

[lenny]

ok thankyou for help

[ballcock50]

I bought a chip from germany for a 3.0 ltr off ebay to run in my 2.5 after fitting 3.0 ltr cams I find it great. it also seems to cure the problem of coding the engine management as I run it in two different cars when the immobiliser flashes the EM. light and won't start.

[ngrainqey]

I thought just swapping the ecu's will cause the immobiliser to lock out, you also need to swap the other parts from the immobiliser if I'm correct

if you get your carpass off vauxhall then you can get somebody with tech2 (like some people on vxon) and reprogram it that way  

[lenny]

alright its not that straight forward then.just thought everything i need would be in the 30ltr apart from the clutch.