Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

Can you use some other materials? thanks in advance

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

HHH

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

You don't need either gasket if the surfaces being mated together are flat.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

I dont use gaskets period. Way ------- over rated.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

Thats good to know. Do you guys have any leaks?
Do you use Silcone?

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

We dont use gaskets and jago just told you if the surfaces are flat you dont need one. It actually helps the flow a little better somehow. The reason behind gaskets is a heat precaution. For instance, if your car is hot as hell then the head gasket will burn and save your engine from overheating. You dont have to run ANY gaskets, period!! You just have to put your fan on a manual switch though.. Chevron 91 with techron is almost like racegas, use it.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

Between turbo and manifold, I would always use a gasket.

All the used turbos I see have a warped turbine inlet flange which is normal considering the thermo cycles this cast iron part sees in operation. On this pressurized portion of the exhaust system, the smallest gap between the flanges will cause an exhaust leak and once it started leaking, it will get worse, the exhaust stream gouging into the flange rapidly with major impacts on spool up and power. I would definitely recommend a good gasket there at all times!! For the downpipe, different story, exhaust gases are no longer pressurized. A slight crack won't tend to leak as bad and mostly, won't impede spool up and power as much, that's probably why a downpipe gasket is rarely used on factory turbos.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

Yeah just use a gasket from the manifold to the turbo. Like Blaast said, they can warp from the heat cycles, and the gases are pressurized.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

Machined flange and a little copper spray.

Re: Do you need the gasket from the manifold to turbo? or the turbo to dp?
 

100% 8)