Dump/front Pipes

[Baz]

Are split dump pipes any sort of advantage over the belmouth style pipes?

The way I see it is that the split pipe system is trying to retain the same effects as an external wastegated turbo in there design. But the way I see it, the only thing they do is cause further restriction by first off having a seperating bracket across the face of the flange which seperates it into its different piping which rejoins later on. In design having an open flowing tube would flow exhaust gases far easier.

So why would I spend another $100 buying a split dump system when a belmouth design seems far better? Prove me wrong.

Cheers,

Edited August 21, 2005 by Baz

[RANDY]

I don't have any proof on hand, but I've heard from several sources that the split system is better. The face of the flange already has two holes, so the other two on the dump pipe should line up and not create any additional resistance.

Come to think of it... someone is selling these in the "for sale" section. He put up figures of power output comparing the two systems, and some dyno sheets... have a look around there!

[xRHETTx]

Split is heaps better, provides a smoother path for the exhasust gases and means there isnt a massive amount of turbulence when the wastegate opens.

BATMBL sells them.

Get one, it'll be worth it.

Maybe do a search on this topic, it has been covered a few times, in a fair bit of detail.

[paulr33]

i went from a stock dump and stock front pipe to a batmbl 3" split dump and front pipe combo. i noticed a big difference in turbo spool up and also overall rsponse when on full song. it sounds a bit wooshier and your power brand gets bigger as it doesn't flood itself at the exhaust outlet