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Engine Specific Info and Questions => IDI Engine => Topic started by: quietmission on November 25, 2007, 03:08:31 pm

Title: Just bought a Garrett VNT 15 from ebay
Post by: quietmission on November 25, 2007, 03:08:31 pm

I am looking for decent power low to mid range power for a 1.6td setup.  Should i upgrade to a VNT 17 or will the VNT 15 get up to 20psi efficiently?
It has the tdi manifold attached, will i need the 1.6td manifold to make it work?  Please advise.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=220173967161

Title: Just bought a Garrett VNT 15 from ebay
Post by: Slave2School on November 25, 2007, 03:23:30 pm

The exhaust housing is part of that tdi manifold.

The vnt-15 loses much efficiency above 18.5ish and may not live long if it sees 20psi all the time, or depending on what altitude it makes that pressure.

there are lots of good posts on this :)

Title: Just bought a Garrett VNT 15 from ebay
Post by: quietmission on November 25, 2007, 03:30:03 pm

I probably will not take it to 20psi all the time since i hardly drive on the freeway.  I figure that the tdi manifold will bolt to the 1.6td and what are the options on downpipe for that turbo?  Will i be better off with a t3 with a 3' PP downpipe or a VNT 17 instead of the VNT 15?

Title: Just bought a Garrett VNT 15 from ebay
Post by: rallydiesel on November 25, 2007, 03:48:21 pm

You should be happy with 15 PSI. It spools way faster than a K24 etc and makes the low end much more usable. 15 psi with a VNT turbo vs 15 psi in a wastegate turbo are two different things. You can't compare just the numbers.

Title: Just bought a Garrett VNT 15 from ebay
Post by: sju on November 25, 2007, 04:58:08 pm

whats it going on?

ive got the same turbo.. and to use it on an older 1.6td setup you have to make a vane control system. libbybapa, jimfoo, and named tintin all have setups and tons of useful info if you end up having to make one.

Title: Just bought a Garrett VNT 15 from ebay
Post by: quietmission on November 25, 2007, 06:58:53 pm

First i want to throw a diesel into a MK2 golf GTI for a daily driver (I still want it to be zippy...120whp would be ideal)  I am also curious about doing the franken 1.9/1.6td for that or maybe an azz.  I just want to wait and see the result of some others doing it.
My second project would be to throw a regular 1.6td in a tracker or a sidekick. :D

Title: Just bought a Garrett VNT 15 from ebay
Post by: jtanguay on November 25, 2007, 07:20:06 pm

there's plenty of useful information about this type of setup.

have you read this?

http://vwdiesel.net/phpBB/viewtopic.php?t=1306&highlight=project+potential+variable+vane

it would be a good idea for you to disassemble the exhaust portion to clean the vanes too.

Title: Just bought a Garrett VNT 15 from ebay
Post by: quietmission on November 25, 2007, 07:28:38 pm

I am on here all the time.  I just wanted to know the difference between a regular T3/k24 setup with a downpipe vs. the vnt 15 which i just bought.
I am going to read this right now.  Thanks!