Project twin scroll

[Boosted P]

This is something I have been meaning to try for a while now, and finally got a bit of spare time so I went for it. There are a few benefits to a twin scroll over open, but that is the long boring explanation. If you wish to read up on it, Google is your friend.

The idea here was to make it a very easy/simple to install/remove. The other very important thing is that the exhaust banks are separated all the way, and the exhaust piping length from header to turbo is the same (within 1/2").

Now on to the good stuff..

Passenger side section:













There is still a lot of room here:






All new 66mm turbine wheel:







I will be able to use the all new Precision 6266 or 6766 T4 turbs, with the following a/r housing options: .84, 1.0, 1.15 and 1.32.

[Boosted P]

Then I moved on to the downpipe:

I managed to get the down pipe tacked up, looks very good IMO:

[Boosted P]

Port matching: perfect..and everything gets back purged (the proper way to weld tubing) with argon to ensure very smooth joints
on the inside. No back purge= "sugaring" on the inside



Any time two solid exhaust banks are joined together a flex pipe is a MUST, so the passenger side looks like so:



Random shot..



All welded up on the outside:



Passenger side wastegate location:




Driver side wastegate location:



The whole thing comes off by removing 6 header bolts and one V-band clamp







The two wastegates will join on the driver side where the transmission ends. Then the single 2" dump tube will be routed in to the down pipe.

[Boosted P]

Open dumps:





And then recirculated:



Angle of entry it to the down pipe:







Couple of welds :icon38::





Very happy with the clearance, you can see a bit of the 3" down pipe but that is about it. Nothing stick below the skid plates:

[Boosted P]

Some last shots before boxing up:






The charge pipe that houses the BOV and MAF sensor is not in the picture. I have to polish it still.


And just the hot pipes:

[dyethor]

Nice work. That's some money in SS and fittings. What car is this on?

[sportbike]

Very nice. Always like to see the boosted applications.

[zoama]

Very nice work.. It would be awesome if you could do a video or two on welding 304 exhaust.

[Boosted P]

Nice work. That's some money in SS and fittings. What car is this on?

Depends on how much you buy at once..

The kit will fit 03-06 Nissan 350z or Infinity G35.

[Mike J]

Nice welds!! What is the tubing thickness, and what amperage did you use for the tubing to flange?

cheers,

Mike

[brad3579]

You really do some amazing work.
How many hours do you have tied up in a project like that?
Brad

[Boosted P]

Nice welds!! What is the tubing thickness, and what amperage did you use for the tubing to flange?

cheers,

Mike

Thanks Mike, the tubing is standard .065 wall. Tubing to flange amperage is usually set to about 90 amps, but feathered with the foot pedal. The key is to keep the heat on the flange, and only make short/quick movements towards the tubing. I can weld the flange to the tubing, and never burn through on the tubins side.

You really do some amazing work.
How many hours do you have tied up in a project like that?
Brad

Thanks Brad...a project like this will probably be about 25 hours, if I was to duplicate it (and will) it would be 10-15.

[jerky]

what would you charge for somethign like that if you dont mind me asking.

[Boosted P]

what would you charge for somethign like that if you dont mind me asking.

It depends on the complexity. The stainless exhaust pipes pictured below would probably be in the $2200 range.

Where in Alberta are you? I im in Edmonton...

[jerky]

red deer. just wondering cause im about to build my exhaust. 2.5" x .065" 304L for my lancer, and want to start doing more stuff like that as well for other people/

[tt ws6]

Awesome fab work. I'm curious which model Everlast welder you're using? I plan on doing my hotside on my Trans Am here soon. Also, where or how do you get that polished look on the stainless? Is that something you do, or does it come like that?

[Cocao]

Nice work!

[brad3579]

Depends on how much you buy at once..

The kit will fit 03-06 Nissan 350z or Infinity G35.

I am looking for some V Band clamps and flexes, do you know of a good supplier in the US.
Thanks
Brad

[sportbike]

I am looking for some V Band clamps and flexes, do you know of a good supplier in the US.
Thanks
Brad

I get my stuff from John Kerr at Race Parts Solutions. I'm not sure if he carries Flex exhaust pieces though.

http://www.racepartssolutions.com/index.asp

[jerky]

http://www.vibrantperformance.com/main.php... little pricy, but quality is there