Biggest WG turbo I can run?

[rallydiesel]

I'm looking for a common (ie: cheap junkyard type) turbo I can run on a 1.9 TDI. I want something that will spool quite late. Anybody have any tips? I think the merc 300d turbos may spool a little too early but they are a dime a dozen. What Holset turbos would be good, hy35?

Thanks for any insight.

[jtanguay]

why do you want something to spool late? the TDI torque is at around 1500 rpm or so.

i'm currently running the K24 on my mTDI and i think its a bit too big... the TDI doesn't rev like the 1.6 so you lose a bit of the top end, which the turbo works beautifully at.  i wouldn't dare go anything bigger on mine unless i had a lot of custom work done to make it work.  the TDI's don't seem to rev more than 4500-ish, while i could get my 1.6 up to about 5500 easily.  and it didn't sound quite as harsh as the TDI going at around 4k rpm.  (sounds real mean... lots of advance  :lol:)

the torque of the motor is extremely impressive.  i'm glad i chose to go 1.9TDI instead of rebuilding my 1.6TD  :twisted:

i would say go either K14, or if you must, K24.  what exactly are your plans?

[rallydiesel]

Well, I have a k14 coming. My plan is the mythical compound set-up with the k14 as the small turbo. Hmmm, maybe the merc 300d wouldn't be so bad then?