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T25 tdi conversion
Posted: 25 Aug 2009, 20:39
by 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
Re: T25 tdi conversion
Posted: 25 Aug 2009, 21:07
by andysimpson
jayc wrote: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.
Re: T25 tdi conversion
Posted: 25 Aug 2009, 21:46
by jayc
Bigger job than other 1.9tdi's?
Re: T25 tdi conversion
Posted: 25 Aug 2009, 23:34
by andysimpson
jayc wrote: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.
Re: T25 tdi conversion
Posted: 26 Aug 2009, 06:19
by 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.
Re: T25 tdi conversion
Posted: 26 Aug 2009, 18:06
by andysimpson
jayc wrote: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
Re: T25 tdi conversion
Posted: 29 Sep 2009, 21:20
by T3 Ben
what are the benefits of using a mechanical pump as oppose the the standard tdi system?
Re: T25 tdi conversion
Posted: 30 Sep 2009, 20:57
by andysimpson
T3 Ben wrote: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
Re: T25 tdi conversion
Posted: 02 Oct 2009, 20:33
by 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.
Re: T25 tdi conversion
Posted: 03 Oct 2009, 21:01
by andysimpson
poshbuggers wrote: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