Author Topic: Hello all - advice required 1Z engine MTDi into T4 van...... (Read 3489 times)

T4TD · « **on:** January 27, 2009, 10:54:00 am »

Hi everyone.

Having trashed my old TD engine one last time (bust piston), I decided it was time for a TDi conversion for my T4 Transporter van.

I have a 1Z engine (now in bits) ready to build up, but wanted to replace the pistons with something stronger. I am aiming to get around 120-150bhp when all sorted. The van already has a huge intercooler fitted, and a new GT15 turbo was fitted about 15,000 miles ago.

I am looking for advice on pistons, as have been advised to try ALH pistons, but interested in other peoples views..... Also looking at aftermarket pistons, such as Mahle.

I have gathered a few pump bits, but need some advice there also. I have an old AFN pump that had a bearing fail, and also have a good set of AFN injectors to use.

Any advice/hints appreciated.

Thanks in advance

Rob
T4TD

rallydiesel · « **Reply #1 on:** January 27, 2009, 11:05:04 am »

I'm planning on ALH pistons on my 1Z/AHU mtdi. If you want some extra insurance you could get the tops ceramic coated. Kolbenschmidts are a high quality brand. I don't think Mahle is too bad either but I could be mistaken.

myke_w · « **Reply #2 on:** March 16, 2009, 06:03:17 am »

If you are looking for maximum strength go for the oil cooled dome version.

I'm going to be ordering several sets soon and could put your name on the list. I have to warn you they aren't cheap.

I also have TDI ALH pistons in Nural brand which are quite good, in stock in stock and .5mm over

PM me if you are interested.

subsonic · « **Reply #3 on:** March 19, 2009, 08:36:45 pm »

Are you located in England?