Thread: TD5 Manifold Modification

That's a logical fix.

Thanks

Very good.
I will put it on my to do list!!!!
Andrew

But it is the expansion of the manifold that applies shear load to the studs and snaps them, thats why we enlarge all but the centre holes to allow the slight expansion without contacting the studs. I understood that the warp sets in after the studs have sheared allowing the manifold to lift (curl)

The webbing was actually put in there to try and stop the expansion. to avoid the actual manifolds cracking like in days gone bye (series landys, early valiants, etc).

But hey if it works , there go's more theory

We could always go like the Ricer boys do...
and get a custom tuned length exhaust manifold fabricated.
Now that would look sweet

.

Originally Posted by Sandtoyz

We could always go like the Ricer boys do...
and get a custom tuned length exhaust manifold fabricated.
Now that would look sweet

I'd be concerned that without the webbing the expansion/contraction process will actually cause the outlets to flex where they all join and cause cracking at that point. It is a casting after all and not designed to be flexible as it would be if it was fabricated.

Russell

Did the later discos two td5s have larger studs or have some just been modified?
Dave

Originally Posted by Sandtoyz

We could always go like the Ricer boys do...
and get a custom tuned length exhaust manifold fabricated.
Now that would look sweet

Been done by a guy in Germany who also owns a 2.8L stroker version of a TD5 that he built himself.