Turbo Manifold / Dump Pipe Brace

[SiR_RB]

I got a Greddy/trust stainless manifold which had a custom manifold brace made from the T4 flange to the block to support the weight of the turbo, now Soon I'm ready to start fabricating the dump pipe and have herd some mixed opinions about solid mounting it and using a flexi joint.

I have herd to use flat bar to solid mount the dump pipe to the top bellhousing bolt then running a flexi joint after that to allow movement of the exhaust

Then ive herd people say to never solid mount the manifold or dump pipe just run the standard gearbox rubber hanger

What would be the best way to support and brace the dump to keep the weight off the turbo and manifold ?

[SMiTHBRo]

It should be fine to have the manifold and dump braced as you're suggesting. Just make sure there is a flex somewhere in the exhaust otherwise shocks to the system result in breakages of studs or worst case the manifold/dump.

[Roy]

Personally i wouldnt he constraining the manifold to the box. Sure support the weight off the head but if you constrain the dump then when e erything gets hot you woll be forcing it to grow in the opposite direction. Best support the weight then give it freedom to grow in whatever direction it chooses

[R31 drift pig]

I just had a look at mine, Im using the same manifold etc you are, with a TD06. My dump pipe has neither bracing NOR a flex joint. Manifold is not braced to block either. Manifold does however have small braces to prevent cracking etc

This exact turbo kit has been on my car for 2+ years, and has been on 2 cars previous to mine (R32 GTR and Driftsquid's S13 with RB25) plus whatever else before it. And before someone points it out, manifold flange was modded with 2 extra sets of holes, so fits RB25 and RB26.

Not one single issue whatsoever. No broken studs, no issues with dump pipe etc, I do however use new rubber exhaust hangers, and put new studs and gaskets in when turbo kit went on, but thats it.

[boostn0199]

The setup ive run on my track car with good sucess steam pipe mani no brace, flex joint in dump when it comes off turbo going down then a support for the dump at the flange to exhuast but not completly solid alowing play just enough to hold its weight.

[Ben C34]

When you brace stuff keep in mind which way it will expand with heat.

[SiR_RB]

I was also thinking about thermal expansion when you brace too much, which may cause more issues as it cannot expand

The brace from manifold to block is free to move as the manifold expands, I was just wondering about bracing the dump,

I may make the the dump pipe with a flexi joint and just run the factory gearbox rubber mount, should be good enough

[Piggaz]

I was also thinking about thermal expansion when you brace too much, which may cause more issues as it cannot expand

The brace from manifold to block is free to move as the manifold expands, I was just wondering about bracing the dump,

I may make the the dump pipe with a flexi joint and just run the factory gearbox rubber mount, should be good enough

One of these!

[SiR_RB]

Yep just got one ! 4" stainless flexi joint for the dump

Would take a lot of stress off the manifold as the exhaust shakes and Carrys on during driving

You still running the gearbox exhaust mount which bolt to the cat flange (decat lol) ?

[Piggaz]

I will. Micko will make something up.

Single cell cat