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Engine Specific Info and Questions => IDI Engine => Topic started by: zaprzal on December 29, 2005, 02:11:03 am

Title: Downpipe again
Post by: zaprzal on December 29, 2005, 02:11:03 am

I have golf A2 GTD with SB engine (intercooled and 80HP), will 1.9 TD AAZ engine downpipe fit my engine? What diameter it has? Can I fit something else? Do you have any photos?

Title: Downpipe again
Post by: Maarten on December 29, 2005, 02:27:41 am

The downpipe will fit... but you'll have to adapt your exhaust to the different pipe. I suggest you stick with the 1.6GTD pipe (or go to a larger diameter if you need one)

Title: Downpipe again
Post by: zaprzal on December 29, 2005, 03:10:03 am

What diameter is 1.9 TD AAZ downpipe? Will 1.9 TDI 1Z (90hp) also fit me?

Title: Downpipe again
Post by: Maarten on December 29, 2005, 03:57:41 am

Ik don't know the diameter of the original 1.9 DP, I know the 1.6TD pipes are VERY restrictive (45mm internal diameter) so I swapped mine for a custom freeflow 70mm.

The turbo on a TDI is positioned different than a 1.6/1.9TD so that won't fit.

Title: Downpipe again
Post by: Maarten on December 29, 2005, 05:06:51 am

(http://www.cats-direct-shop.co.uk/bmimages/70215.jpg)

this is a 1.9 downpipe...

Title: Downpipe again
Post by: zaprzal on December 29, 2005, 05:53:18 am

Ok, thanks. :) Is 1.9 td dp less restrictive than 1.6 dp? Is it worth to swap 1.6 dp for 1.9? Will it fit without any modyfications as I marked on picture? Only cut somewhere where I marked on picture and stick with rest of exhaust? Thanks for help

(http://zaprzal.neostrada.pl/aazdp.jpg)

Title: Downpipe again
Post by: Maarten on December 29, 2005, 06:07:29 am

it looks less restrictive but I don't know the diameter of the pipe.. could be somewhere between 45 and 55 I think... If you cut it before the flex it could fit with some ghetto-welding ;) so I suggest a real upgrade  8)

This is my pipe:

(http://morninglight.nl/a3/dp1.jpg)
(http://morninglight.nl/a3/dp2.jpg)

on a K24 turbo (behind the pipe on the 2nd photo is the original dp)

Title: Downpipe again
Post by: zaprzal on December 29, 2005, 07:30:48 am

Last question: flange which I marked on picture is this same in 1.9 and 1.6 dp? (http://zaprzal.neostrada.pl/aazdp.jpg)

Title: Downpipe again
Post by: Maarten on December 29, 2005, 07:34:54 am

Yes it will fit.. on all IDI (1.6/1.9TD) turbos the outlets are the same...

Title: Downpipe again
Post by: andy2 on December 29, 2005, 07:39:48 am

Quote from: "zaprzal"

Ok, thanks. :) Is 1.9 td dp less restrictive than 1.6 dp? Is it worth to swap 1.6 dp for 1.9? Will it fit without any modyfications as I marked on picture? Only cut somewhere where I marked on picture and stick with rest of exhaust? Thanks for help

That downpipe pictured has a different flange used for the k03 turbo used on 1.9's from 95-97 I think.I have modified that pipe to fit on my 1.6td,the only thing you need to do is relocate the 2 bottom holes and cut the flange a little on the bottom.

If you can get a downpipe from a 93 and I think some 94's it will be a direct bolt on as those years used a k14 turbo which has the same bolt pattern as our 1.6 flange.

Other than that you'll have cut that flange off the exiting end and weld a peice of pipe onto it inorder to get the angle right underneath the car.

Title: Downpipe again
Post by: zaprzal on December 29, 2005, 08:21:01 am

I've got garrett T2

Title: Downpipe again
Post by: andy2 on December 29, 2005, 10:02:36 am

I believe that the T2 has the same outlet flange as the K14,K24 and T3.Mabye someone else could confirm this?

Title: Downpipe again
Post by: 935racer on December 29, 2005, 11:34:21 am

I've got a t2 on  a 1.9 in the shop right now, just checked, flange is the same as k14, k24, t3 etc

Title: Downpipe again
Post by: Maarten on December 29, 2005, 02:49:47 pm

Quote

 on all IDI (1.6/1.9TD) turbos the outlets are the same...

 :wink: