2.25 diesel turbo

[SMASH]

Hi everyone i have recently bought a series 2a 109 2.25 diesel. the engine needs a rear main seal and i am going to rebuild the engine. i am considering doing a turbo upgrade on the engine. has anyone done this or heard of it done? or know what required?

[djam1]

I suspect that you might need a pile of crankshafts
I maybe wrong but I thought they changed the design of the 2.5 litre engine to make it strong enough for the turbo and it was still a disaster.
Not sure a 2a 2.25 would be up to a turbo

[Series3 GT]

I've seen a few around on the net over in England and heard of a few. I considered getting a 2.25 Diesel and putting a turbo on it, intercooler and a straight through exhaust but I'm looking at going down the Holden motor path now cause it's cheaper than a diesel or rebuilding the 2.25 petrol in my IIA when it let's go. Certainly be a great project and would have a bit more go with a turbo, intercooler and straight through exhaust.

[debruiser]

SMASH, you have my attention. I was thinking of pulling the 186 from mine to put in a 2.25TD :D I need all the technical gizmos though....

[chazza]

I agree with djam1 - Land Rover tried what you are proposing to do and it was a failure.

If you desperately want a trubo-diesel use a 200tdi, or 300tdi, which are very easy conversions and old cheap Discos are plentiful,

Cheers Charlie

[SMASH]

Thanks guys well definitely given me somthing to think about i like the idea of having the 2.25 with a diesel as something different. i have looked at getting a 200 or 300 tdi and are a little out of my price range i know that may sound silly with the amount of money that i would have to put into the original engine but i can space it out

[chazza]

Do a search of Isuzurover's posts or PM him; he has a 2.25 (I think) diesel in his car which has been tuned to give good performance,

Cheers Charlie

[Dinty]

I remember many years ago, a chap called Brian Hunter turbo charged his 4 cyl engine, AFAIK it went well. Also Murray R from Modern motors Dungog also turbo charged his 4 cylinder petrol engine it also went well from what I remember.
I reckon Murray's 88" went faster uphill than my 109 did going downhill, at the time I had a S2A 109 with 186 Yella terra head X2 headers, 186S carb, high ratio diffs + overdrive, anyway that was a long time ago cheers Dennis:angel:

[JDNSW]

The 2.25 n/a is quite durable, but it was considered necessary to go to a five bearing crankshaft, as broken crankshafts did happen. Five bearing 2.25s are vanishingly rare in Australia, so you are almost certainly looking at a three bearing engine if you do this. Rover enlarged the engine to 2.5l and later turbocharged it, with less than satisfactory results.

You could probably get away with turbocharging a 2.25 five bearing engine, provided you were careful about both the amount of boost and how you drove it. To do this with a three bearing engine is probably asking a bit much. You need to remember that the original design diesel was 2.0l, and enlarging it to 2.25 was considered a crankshaft risk.

John