Ridiculous or Brilliant?

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pos

pos

Well-Known Member
Posts
3,685
Location
West Yorkshire
Hello,

This is another one of my typical questions, and I'm asking out of interest!
Would a 200 or 300 tdi head fit onto an N/A block?

Thanks
-Pos
 
the block is essentially the same but would probably cost more than a reasonable 200 out of a disco! Just do it, no point ****in about, get the ****er in there mate!!!
 
Summer's fully booked I'm afraid which is why I'm looking for alternative solutions to taking the whole engine out. In theory I can change the pistons in half a day, but why would a direct injection head crack my block?
 
Nothing is wrong with it but if I can get a cheap reconditioned 200 tdi head, stick it on and paint it black no ones any the wiser are they!?
 
I think the Blocks are the same casting, but strengthened etc. Dnt be fooled by the colour.

Fitting a DI head would not give you much power benefit i don't think, as you would need the turbo etc. The IP also won't like the DI injectors - DI injectors have a much higher opening pressure, and so your poor lucas pump will struggle, if work at all.

It takes about 3 full days to do a TDi swap... you sure your that fully booked? how about easter? :)
 
boydy1989 said:
I think the Blocks are the same casting, but strengthened etc. Dnt be fooled by the colour.

Fitting a DI head would not give you much power benefit i don't think, as you would need the turbo etc. The IP also won't like the DI injectors - DI injectors have a much higher opening pressure, and so your poor lucas pump will struggle, if work at all.

It takes about 3 full days to do a TDi swap... you sure your that fully booked? how about easter? :)
Click to expand...

I'd change the pumps around too. It's just to avoid insurance hastles thats all! I am absolutely fully booked I'm afraid. Any half term is spent with my girlfriend and she's up here in Easter and we're off up to the lakes not long afterwards. Hmmm!
 
pos said:
I'd change the pumps around too. It's just to avoid insurance hastles thats all! I am absolutely fully booked I'm afraid. Any half term is spent with my girlfriend and she's up here in Easter and we're off up to the lakes not long afterwards. Hmmm!
Click to expand...

What insurance Hassles. it's still a 2.5ltr diesel engine. If you change the head over It's a mod. and therefore has to be reported to your insurance anyway.
 
Well, if you are swapping the pumps then you would have to get custom injector pipes made up, cos tdi and NA pumps mount differently.

you would also have to adjust the pump to run with no turbo, cos they are linked together to adjust how much fuel is injected, timing etc. I don't think it would work properly if you just blanked off the link.

And, i still dnt think you would get much if any power difference!
 
Sorting the manifolds out could be fun. I think you'll end up with more work that a straight engine swap, partly because there is so much you will have to work out for yourself.
If it worked and was easy people would have have been doing it for years!
 
I don't understand why you'd do this. No point chopping and changing engines and heads you'll never get it to run right. You'd spend less time lifting the whole lump out than taking a head off, just stick a tdi in and be done with it. You could find a rusty MOT failure Disco tdi for a couple of hundred quid without much trouble.
 
I'm just asking purely out of interest that's all! I'm not going to go and do it but I was just wondering if a 200 head would make a bit of difference. My N/A is running better than ever!
 
Yep, I just put a new head gasket on and torqued it down properly. There is still and always will be some blow by with these engines though. They're old, over revved high mileage machines but they will run and run and run!
 
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