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[fuelwiseno.1]

my 2.6v6 had the oil cooler problem a few years ago and although very reliable since, i feel it is in need of a good rebuild. the car is a manual. question is--- could i fit a 3.2 onto this gearbox? if so, what donor vehicles could the engine be sourced from. i would have the new engine fully overhauled before fitting. what else would need changing? has any of you done this? thanks tom

[05omegav6]

Should be a straight forward engine swap

RobseyMV6 has done this conversion, sure others have also

[Kevin Wood]

You'd probably want to change the diff ratio too.

IIRC the 3.2 will run fine on a 2.6 ECU but if you want to swap to a 3.2 one you'll need the immobiliser and key transponders to match the ECU.

[Greeny18]

Hi Guys,
       Would it be "restricted" on the 2.6 ecu or would the differences be minimal that you would not notice?

[Andy H]

Which gearbox?

Manual should already have the R28 which is tough enough to cope with the 3.2.

Auto will have the AR25 & a torque converter matched to the 2.6 V6.

The AR25 is considered a bit fragile by those who have 'chipped' their 2.5 diesel engines. Depending on your driving style you may be OK Also not sure whether there is a different gearbox map that should be loaded into the gearbox ECU 

[RobG]

Manual should already have the R28

OP has a 2.6 so should have the R25 fitted

[Kevin Wood]

Manual should already have the R28

OP has a 2.6 so should have the R25 fitted

R25 should be fine with a 3.2 though. It's the auto boxes where there will be problems.

[05omegav6]

What would the 2.6 do if it were plugged into a 3.2 ecu 

[Kevin Wood]

What would the 2.6 do if it were plugged into a 3.2 ecu 

Pretty much work as normal, I think. The ECU fuels according to MAF so the smaller engine will just draw a little less air, and a little less fuel will be delivered.