another
the yellow is just a reflection, not rust.

 

( Looks Good ) with the acception of wastegate plumbing which could be a challenge

 

Looks awesome! Looks like you have room to tie in your wastegate tubing on top or bottom of the runners (maybe be a bit unique and stagger them with one top and one bottom).

Is there any advantage to dual wastegates to keep those exhaust pulses separated?

 

I'm sure there is but I don't know if I have the room for it. I did plan on using a pair of audi wastegates that had a valve diameter of ~35mm (can't remember the exact size) but they were huge together. Anyone have pic's of dual wastegate setups?
-Cam

 

I see your point. I'm not trying to be a bitch (the crowd gasps in mock horror) but I know you've got a ton of time and effort and not a little cash in this car and I'd hate to see you have one of those dumb little problems that could have been fixed cheaply early on BEFORE lots of other custom work is done.

 

I'm ******* impressed! Can't wait to hear how it runs

 

peejay- no problem here Always good to have people keep you on your toes. When I first came up with that design on the work bench I was like "kick *** this is going to work awsome" then I put the mocked up manifold in the car to have it hit the frame rail. So I chopped ~ a inch off to what it is now.

banzai- thanks, I just hope I got a "good" j-spec engine.

 

rebuild it. . .

paul

 

Anymore progress on this to this date?

I was reading Maximum boost and there is a pic of the wastegate welded in on the turbine housing or something and he seemed to like that... (I think someone mentioned doing this earlier as well) I was gonna scan the pic and post it here, but after looking at your pics, I dont see how you could possibly get the wastegate in on the turbine housin unless the turbo was up infront of the strut wall there but then you wont have room for the intake and such.

Ah well... update please I want to do something like this this winter for my car, so Im curious as to how it all turns out

 

Sure there would be room for intake and such. Lots of guy mount their larger single turbos forward, so that the turbine side is about even, or completely infront of the strut tower.

 

321 is available in schedule pipe, we use a lot of it at work ( Alstom Gas turbines) , but its being phased out for 316l stainless instead as 321 is a little hard and that can cause sulphide stress cracking in atmospheres that contain hydrogen sulphide

 

I know people usually do that, but didnt he say that this is in an FB so there isnt much room and that he measured it and that if he did move it forward then he wouldnt have enough room for the filter because the rad would be in the way?
Thats what I thought I read, and I was speaking for this application only too

I want updates! lol

 

Two Tial 35 mm in an FD. Pictures don't show much detail, but they fit!
Dual Wastegates in FD

 

Snufelupogus- I haven't made much progress in the last few weeks on it I'm still tring to figure out what wastegate to use (thinking 46mm tial). I thought about incorporating the WG into the turbine housing some how but coulden't figure out how I could do it with my turbo/manifold combo. Were you referring to the pic on page 125 or 130?

Bridgeported- I didn't want to move the turbo forward because as snufelupogus said the compressor housing gets close ot the radiator in a hurry in my little FB

Tyson- I folowed the link and looked at all 3 pages, coulden't get the pic's to load

What I am thinking now is doing like maxthe7man did with his wastegate plumbing. It looks great and like he told me once it keeps the diaphragm of the WG cooler by having it upsidedown. If I end up doing it this way I will probably try to "Y" the wasegate pipes out of the main runners a little more than he did just to make me feel better But I am still considering two 35mm Tials, anyone have physical dimensions on them? Maybe I can fit one on the top of each runner in between the engine and the turbo...hmm..



-Cam

 

Strange, they don't work for me now either. I will try to get some with the turbo and manifold out of the car. Might take a couple weeks though

 

cool, Ill be waiting to see them!

 

Here is a pic of how much room I have to work with.

 

This is what the engine bay looks like now.

 

Lots of room for a air filter/shroud

 

Do you plan on routing them back into the downpipe? If not, you could flange them onto each runner with about 1" of pipe. Arrainge the wastegates so the outlets point straight down. Add another couple inches of pipe and voila, done In other words, have one in front of the manifold, below the compressor, and the other behind the manifold, below the downpipe.

 

If you do go with the dual, I was gonna suggest that too
Regarding this setup:

It looks good, but the angle of the pipe for the wastegate that comes out of the manifold is on or looks to be on a 90 degree angle to the manifold pipe. This will work, obviously, but if you put the pipes from the manifold to the wastegate, kinda like a Y junction, then the air transition will be smoother and it will be more effective than the exhaust trying to make a 90 degree turn up to get to the wastegate. What Im talking aboot is explained (kinda) in Maximum Boost on page 125.

 

I said basically the same thing you typed here a few replies up .

Max said his setup works good but I figured I could possibly make it a little better by "Y" ing it into the main runners more than what he did.

I think I'm going to go with a single WG, if I were to go with two it would just add that much more time onto my 6-month long project manifold. It would also make it even more complicated to route back into the exhaust.

 

My bad
oo and that diagram I was talkin aboot with the air flow and that jazz is on page 145, not 125 of the book again... my bad

I cant believe it has taken you 6 months to make a manifold nutz

 

Well if I had all the tools in my garage and had the energy I bet I could have done it in 2 weeks. It was pretty easy to physically make, just takes me a while to decide what I want to do.

Oh yeah.... it also doesn't help that I'm addicted to this damn forum! It takes away from my "garage time" too much. Oh well, the more I browse the forum the more I learn.

 

ah yes... sounds like me! hehe

are you at least gonna have it all done and your car workin for spring?