Modifying Factory Exhaust Manifold..?

[brother_david]

I was thinking the other day at work, since im probably going to upgrade the turbo and will probably be needing an external wastegate, wouldnt it be possible to modify the factory manifold on my R33 gtst-94 and TIG-weld a fitting for the ex. WG?

I've got a MIG-welder, but ive heard that the manifold 'easily' cracks using that so ill have to look up someone around my town who can TIG it for me.

Cheers!

[SteveL]

Factory exhaust manifold is cast iron which needs special handling for welding otherwise it _will_ crack. Find a welder in your area that specialises in cast iron welding/repairs (yellow pages).

[R31Nismoid]

Depending on what turbo, might be better to have it come of the exh housing directly

[Turbine]

You could try this setup for an external wastegate.

http://www.skylinesaustralia.com/photopost...00/ppuser/19114

If you are in Melbourne, I can put you on to the guys that welded this up for me.

Cheers,

Turbine

[teazn_r33]

i have one already done if you want it

[brother_david]

Thx for all your answers, to bad i live on the other side of mother earth, Sweden, so it would be a bit to far to go just to get my manifold welded

Anyway, hopefully theres some firms that do the same in my town!