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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: nkb on July 12, 2006, 09:53:51 am

Title: a/r 1.15 too big?
Post by: nkb on July 12, 2006, 09:53:51 am

i have a garrett turbo with an exhaust a/r of 1.15 that i want to use for a secondary turbo in a sequential setup on my M-TDI. too big?

Title: a/r 1.15 too big?
Post by: vwmike on July 12, 2006, 12:28:38 pm

Just a tad. The 1.6TD uses a .36 which is the smallest I know of. Typical T3's use a .48 or .63.

Title: a/r 1.15 too big?
Post by: nkb on July 12, 2006, 04:25:05 pm

yeah and those are a single turbo setup, i was gonna use a smaller turbo for low end and the bigger one for the upper end.. its still too big isn't it... i was just hoping some one would say it was all good heheh, this thing is HUGE

Title: a/r 1.15 too big?
Post by: DVST8R on July 12, 2006, 04:40:12 pm

I would run it as a med to big single on a cummins or a duramax.  :wink:

Title: a/r 1.15 too big?
Post by: nkb on July 12, 2006, 06:32:23 pm

hahah yeah, it makes a good center piece. maybe i could bolt it onto my motor somewheres to make it look like im running a big turbo  :P

Title: a/r 1.15 too big?
Post by: nkb on July 13, 2006, 05:41:25 am

Quote from: DVST8R

I would run it as a med to big single on a cummins or a duramax.  :wink:

i fund out that this thing is the factory turbo off of a powerstroke, its a tp38

Title: a/r 1.15 too big?
Post by: 935racer on July 13, 2006, 04:40:48 pm

Too big for even your low pressure turbo. For basic headwork, crappy stock manifolds shoot for about .48-.63 for your low pressure turbine.