Non-Turbo Headers

[Hamster]

I've noticed that most people don't seem to be using forward swept headers for their set up. How do you pipe something like that? Wouldn't the 180* turn create un-wanted back pressure?
Also, going over the front axel or under it; would it be in the way of the suspension compression if you went over the axel? ...axle...axel...acktchul...akroid, dan

[DegrezzE]

Re: Non-Turbo Headers

Most people who dont have foward facing headers have the Under K setup, short for under the K-member. Under the K setups from force feb fabrications are said to be reliable to 500hp range (someone correct me if im wrong). Just dont hit any potholes or drive on ****ed up roads. I think with a new tubular K, you dont have to go under becuase you get another 3" of clearance.

[Kidcamaro98]

Re: Non-Turbo Headers

I have Under the K member. You want to have back pressure before the turbo and less after the turbo. The back pressure is what keeps that turbine and exhaust fumes flowing like they do

as far as dont rid on bumpy roads....thats very true lol....exspecially when your wastegate is under there too...but a new suspension setup thats stiffer then stock will fix the problem

[Hamster]

Flatnin'

What if you flattened the pipe a little where it goes under the K member?
Same total circumference, just flatter. Seeing as how back pressure isn't going to be a big problem. (As long as it's not FLAT flat.)
You could flatten it in a vise.

Intercoolers do it.

Then you'd have more clearance.

More Ovaly. um, oval like.

[T-Punk]

Re: Flatnin'

they sell oval tubing and yes it would be acceptable to do this. Forward swept headers are just that they face the front of the engine there is no 180* turn they just head right off the head towards the front of the engine instead of the back. The turbo is placed in front of the engine in these types of setups. The exhaust is either run open down pipe or the AC is removed allowing room for the exhaust to head towards the back of the car like stock. It is the better way to go but it requires more custom parts so most don't do it.

[slow6]

Re: Flatnin'

Ffh Ftw
Fff Ftl

[Hamster]

The old Cut n' Flip

I could have made that clearer I suppose. I meant how do you pipe a system without forward swept headers since there would be a 180* turn.

What I have been thinking about so far is to buy headers and cut them off an inch or so above the flange,
(So I wont warp it when I weld them back on)
flip them around and weld them back again.
The only reservations I have about that are concerning clearance and the ceramic coating.
Will they hit anything when I try to install them in reverse like that?

As for the ceramic coating, it will flake off inside when I weld the tubing back together, and end up crunching around in my turbo.

The only non-ceramic coated headers I can find are 16 gauge mild steel,
or overly expensive Cear Image headers. There's no middle ground.

[T-Punk]

Re: The old Cut n' Flip

You will not be able to do it that easily. There will be all kinds of interference and will require a ton of work. Your best bet would be to get the header flanges from clear image and custom fabing the pipes off of them to go forward, even a log style manifold design would be acceptable for this rather than an actual header.