T25 tdi conversion

[jayc]

Hi all has anyone fitted a 1.9tdi atd engine to a T25? Ive just not heard this engine code mentioned before. Found in 99/2000 onwards audi a3 mk4 golf and skodas etc. Just want to be sure before I purchase.
Cheers all

[andysimpson]

Hi all has anyone fitted a 1.9tdi atd engine to a T25? Ive just not heard this engine code mentioned before. Found in 99/2000 onwards audi a3 mk4 golf and skodas etc. Just want to be sure before I purchase.
Cheers all

Yes its been done but its a BIG job but does not suit the gearing at all.

[jayc]

Bigger job than other 1.9tdi's?

[andysimpson]

Bigger job than other 1.9tdi's?

Yes much bigger job with not as good results due to gearing, a normal tdi have ok ish power at high revs but can be greatly improved with a mechaincal pump, PD tdi's simply hate revs but are fantastic at low revs which you will never achieve with any modifed t25 gearbox.

[jayc]

Thanks for info, Tdi with mechanical pump or tuned aaz then. One day I will make the decision. Im gonna check round vanfest and see if I can get some recomendations.

[andysimpson]

Thanks for info, Tdi with mechanical pump or tuned aaz then. One day I will make the decision. Im gonna check round vanfest and see if I can get some recomendations.

Tdi mechanical pump

[T3 Ben]

what are the benefits of using a mechanical pump as oppose the the standard tdi system?

[andysimpson]

what are the benefits of using a mechanical pump as oppose the the standard tdi system?

good points are:
Much better economy than electronic tdi
No wires all over the place
More upper rpm power

bad points are:
slightly noiser
no idle speed correction

[poshbuggers]

Just been offered a Passat TDi engine (need to check code tomorrow). It's just the engine as far as I know. Is this suitable for a M-TDi conversion or do I need more from the actual Passat?

I'm soon to have a new gearbox built up by Aidan so ratios to suit can be done then.

Just a couple of questions before I take up the offer:

# How much is an M-TDi pump and who supplies them (Russell?) ?

# My van is a 1.6D and I have a running 1.6TD in another van.
What do I need from them and are there any additional parts that are worthwhile getting to do a tidier/more professional job (e.g. Simon's AAZ bits) ?

Thanks in advance.

[andysimpson]

Just been offered a Passat TDi engine (need to check code tomorrow). It's just the engine as far as I know. Is this suitable for a M-TDi conversion or do I need more from the actual Passat?

I'm soon to have a new gearbox built up by Aidan so ratios to suit can be done then.

Just a couple of questions before I take up the offer:

# How much is an M-TDi pump and who supplies them (Russell?) ?

# My van is a 1.6D and I have a running 1.6TD in another van.
What do I need from them and are there any additional parts that are worthwhile getting to do a tidier/more professional job (e.g. Simon's AAZ bits) ?

Thanks in advance.

Depends on year of passat upto 97 is the easiest one to fit the later ones need new engines mounts making up
£900 i heard fitted and set up