Single turbo downpipes

[Swampy442]

What have owners done to get new downpipes, have them manufactured? Bought from a supplier?

Basically I had the one on my Aristo fitted with a V band flange and had a second boss fitted for an O2 sensor, the V band was fitted at the wrong angle and now when offered up theres a gap between the turbo and the down pipe because the bottom of it hits the chassis. Oh, and the sensor boss was put in the wrong place making it useless.

 

So the options are find a way to recover the original pipe or get a new one.

[johnd-mkiv]

Are you able to cut it and segment it until the angles are right then tape the joins and have it welded?

[Andy-No-Knee]

I have done a bit of both...as per the post above. I bought an off the shelf cheapo down pipe. Cut the new angle, placed in the new bits, drew lines and taped. Now waiting for it to be welded. The quoted price for a bespoke one was £300!

[Luxluc]

You can do some welding to get them fit, or ask a garage like SRD or Whifbitz to get a new combo.

 

My 4" DP and MP were custom made ... and weren't that expensive.

 

Luc

[Nic]

Powerhouse Racing use to sell 3", 3.5" and 4" V-band single turbo down pipes and mid pipes (these were available to fit either HKS or GReddy exhaust manifolds). I used PHR 4" pipes with an

HKS manifold and Garrett GT35R. Pics here: http://www.mkivsupra.net/vbb/showthread.php?90717-My-Single-Kit&p=1155472&viewfull=1#post1155472

Edited December 9, 2013 by Nic (see edit history)

[Swampy442]

Are you able to cut it and segment it until the angles are right then tape the joins and have it welded?

 

 

That could work, I hadn't thought of that. What do you mean tape the joins?

[Andy-No-Knee]

So it stays all lined up after you remove it prior to welding if you don't have a kit to tac the pieces in place...prior to fully welding.

[Chris Wilson]

This is one of the things that makes custom single turbo installations either expensive or Heath Robinson. Correct way is trailer the semi finished installation to the pipe benders and let them work off the actual canvas. Doing it any other way, unless you are a really good fabricator and welder, with plenty of experience it will end up a bodge. You need tight, gap free butts in the pipe sections, a decent welder is not going to be impressed filling voids and making parts of bends from weld runs. Primary Design are the best in the business, and now do road car stuff. not cheap, but Pat Barratt is a perfectionist and his men the best in the UK.

 

http://www.gatesgarth.com/4age/primary/primary.html

 

They make it look easy, but it ain't.