RS2 Exhaust Manifold

[orsum]

I have all the parts I need for my S2 to RS2 conversion.

But I have one concern! Can anybody help??????

My exhaust manifold has been welded. It looks good but I am just worried it will fail.

What should I do use it or find some thing else?

What about heat treatment to de-stress it using heating cooling cycles, is it worth trying. e.g. heat to red hot and slow cool several times.

I am worried some thing may break off under real working conditions and come through the turbine and damage my original RS2 Turbo. Took me quite a few years to get the turbo I would kill myself if I damage a very very good RS2 turbo.

Worried please advise.

orsum

[Error404]

Welded cast manifolds rarely last long, even if they have been repaired using best practice.
Personally, if you want it 100%, find another.

[UrS4boy]

Took me quite a few years to get the turbo I would kill myself if I damage a very very good RS2 turbo. orsum

IF that is all it's going to take, I strongly suggest that you sell the S2 now and buy a Toyota, for sanity/health reasons.

[Rikki Kitto]

IF that is all it's going to take, I strongly suggest that you sell the S2 now and buy a Toyota, for sanity/health reasons.

[orsum]

Thanks I will risk death

OMG let the S2 go I would have to be or is it I am because I have an S2.

orsum

[K Simmonds]

The manifold will have been welded from outside, well I assume that's the case, so there's very little chance of internal pieces breaking away and causing damage to the hot side. Inspect the inside of the EM closely to ensure there's no little snobs of weld that could come away or other contamination left over from the repair.

I wouldn't let it bother me too much though I'd only use a welded manifold unless I had no other option.

[Majorcina]

wrong chat

[orsum]

I have another option. Make my own casting.

My friend works in a foundry and is willing to make a pattern off my original manifold and he said he can also test the manifold to see what is was made from and cast a replacement.

All the machining I would have to have done at a engineering company.

The material I think presently used is

EN-GJSA-XNiSiCr35-5-2 (EN-JS3061)
Equiverlants
Warning! Only for reference
USA D5S
France FGS-Ni35Si5Cr2
England S5S
Inter ISO Ni-ResistD-5S

Any comments

orsum

[pwadjo]

If you actually can make a casting then you stand to make a few quid I would say.
Also, if you could make it flow better at the same time that would be good.

[Vorsprung durch Technik]

Join in on the group buy and buy a nice Wagner/Cartec manifold.

[Rusty]

Stopgap could be the STR log manifold, which should be OK for RS2 power. Other than that, you need to get in on the Wagner Evo group buy.

Swapping a manifold is an afternoon's work, so to get things up and running and assuming what you have is in working order, you can run that and save up...

[orsum]

The group buy looks good

orsum