Thread: Does the turbo wastegate pipe need to route under the car?

I'm trying to eliminate a really annoying rattle when the wastegate pipe and exhaust pipe get together.

I was thinking about whacking off the pipe, but, that would cause it to dump in the engine compartment.

The car is running well, but the rattle is ANNOYING.......

Originally Posted by GMR Badass

Loosen up crossover and down pipe and wg perch then adjust and retighten. I assume you have a Z3 kit by the looks of it.

I wish I knew WTH I had....trying to learn slowly but surely.

Why does it look like one turbo charger is hooked to another?

Originally Posted by indygrandprix

It's just one. The rust colored part is the exhaust side and the shiny part is the air intake side.

Got ya, Thanks. So, If I loosen the clamp on the exhaust side, I can move the pipe? It appears to be just hanging off of the exhaust side.

Originally Posted by GMR Badass

What you have is the Z3 kit which has an open waste gate dump tube to atmosphere. I would only mess with the perch that is attached to the rear exhaust manifold which connects to the waste gate and then to the dump tube. With those three connection points you should be able to have enough play to make proper adjustments.

Thanks. I'm gonna give it a go in a few.

is it safe to loosen the 2 clamps so I can move the pipe around a bit?

So, here's the pipe causing the problem. I've looked at it from all angles and can't see how I could move it to eliminate the rattle.

Still thinking on it............

Originally Posted by GMR Badass

IF you do want to try and adjust lossen the one that's closest to the top...you'll be able to move that pipe towards font/back (bumper to bumper).

Did that. The pipe won't move enough to clear the exhaust union.

http://shop.zzperformance.com/store/...ate-Perch.aspx
This piece (it's the piece that the wastegate is sitting on top of) is going to be the one where you ill be able to make the most adjustments with. From the top of the motor it's about impossible to get to it with the WG right in the way. You should be able to get to the 2 bolts from the bottom. Loosen both bolts and push the pipe to one side and tighten back down.

Trying this now. Dam it's tight under there........

I wonder how hot the wastegate pipe gets?

I give up! The bolts to the perch are so rusted I'm no going to attempt to loosen them. If I had a car lift, maybe.

Thanks for all of the suggestions. I think the pipe needs to be removed and bent or cut.......

How hot does the exhaust get? That's how hot that pipe can get. You can probably shorten it, but I wouldn't just let it dump in the engine compartment. Or you can have an exhaust shop who knows turbo system's re-route the dump tube into the downpipe.

If I could just get it away from the exhaust union. Whack it off just above.......

Yes that should work, based on the pic you have above.

That pipe only dumps exhaust when the waste gate opens, correct?

I don't want to smell exhaust when I'm idling at a stop.

Well, I got her whacked off, just above the exhaust union......but not enough to clear the bolt head..........You can see in the pic where it was hitting the union.