Author Topic: my cheap 2.5" downpipe for T3  (Read 3173 times)

February 10, 2008, 09:21:47 pm

flapjack

  • Veteran

  • Offline
  • ***

  • 283
my cheap 2.5" downpipe for T3
« on: February 10, 2008, 09:21:47 pm »
My turbo is mounted on an 8v gas exhaust manifold, lower than the vw.
I got a T3 off of a Saab.  Luckily got the downpipe as well.  The first elbow is about 2.5" dia and pretty tight radius, so I cut it off and welded it to another elbow to fit the vw.
The flange on the saab downpipe spins and presses the flared end of the elbow against the male part on the turbo.  You can turn that elbow any way you want, so it really made it easy to fab the thing.

signature

Reply #1February 11, 2008, 04:37:09 am

dillenger1

  • Veteran

  • Offline
  • ***

  • 777
my cheap 2.5" downpipe for T3
« Reply #1 on: February 11, 2008, 04:37:09 am »
This is very interesting.Have you tried to fit it to the car yet?I would like to start making my downpipe,but i dont have a body for my engine yet. :( Those dimensionsions you gave,those are correct?
Cummins 4bta- 85 dodge prospector short bed
28 mpg!!and i can pull down a house!
1.6td in toyota pickup
10mm head ,t3 intercooled.

Reply #2February 11, 2008, 06:31:03 am

flapjack

  • Veteran

  • Offline
  • ***

  • 283
my cheap 2.5" downpipe for T3
« Reply #2 on: February 11, 2008, 06:31:03 am »
I have some pictures of it on the car I'll post up tonite. Dimensions aren't super precise, but I did use a tape measure.  Also when you're looking at it from above the turbo, you have to turn the bottom elbow clockwise about 20 deg. I think, maybe more.
  I bolted the top elbow to the turbo and held the bottom one to see what I had to cut. Cut a little at a time till you get what you need. Tack it together and test before fully welding it.
signature

Reply #3February 11, 2008, 07:04:02 am

spencebm

  • Veteran

  • Offline
  • ***

  • 686
my cheap 2.5" downpipe for T3
« Reply #3 on: February 11, 2008, 07:04:02 am »
nice
Ben Spencer

Reply #4February 13, 2008, 12:26:41 pm

dillenger1

  • Veteran

  • Offline
  • ***

  • 777
my cheap 2.5" downpipe for T3
« Reply #4 on: February 13, 2008, 12:26:41 pm »
Gosh ,this gets me excited!I need an old stock down pipe to copy.We have a bunch of stainless 2.5"in the pole barn that needs used.Ive got a bunch of 90 deg. elbows and id say 100 feet of straight,thats just the 2.5,weve got 2" as well.It sucks not having a body and trying to put this engine together.Im waiting for the perfect deal :D
Cummins 4bta- 85 dodge prospector short bed
28 mpg!!and i can pull down a house!
1.6td in toyota pickup
10mm head ,t3 intercooled.

Reply #5February 14, 2008, 05:16:09 am

flapjack

  • Veteran

  • Offline
  • ***

  • 283
my cheap 2.5" downpipe for T3
« Reply #5 on: February 14, 2008, 05:16:09 am »
on the car



signature

Reply #6February 14, 2008, 07:13:36 am

lord_verminaard

  • Veteran

  • Offline
  • ***

  • 1080
my cheap 2.5" downpipe for T3
« Reply #6 on: February 14, 2008, 07:13:36 am »
Looks like it works!  What kind of intake manifold is that?

Brendan
81 Scirocco 'S -->Soon to be m-TDI
93 Corrado SLC VR6
'86 Golf N/A Diesel  -->Wife's car
1990 Audi CQ
05 New Beetle PD TDI


"I am a man, I can change... if I have to.... I guess....."

-Red Green

Reply #7February 14, 2008, 11:01:18 am

flapjack

  • Veteran

  • Offline
  • ***

  • 283
my cheap 2.5" downpipe for T3
« Reply #7 on: February 14, 2008, 11:01:18 am »
Intake is from a g60. I'm hoping it will bring awesomeness and benefits beyond my wildest expectations! :)   :shock:
signature