Trust T78/t88 Gtr Manifolds, Twin Scroll?

[ido09s]

Morning all

I feel so dumb asking this question as i did 4 years working with these things but is the Trust T78/T88 manifold actually a twin scroll manifold?

We are upgrading the T78 turbo to a Precision Turbo 6766 and want to make sure i get the right housing

The manifold and turbo appears to be split pulse/twin scroll as it is divided, but i had this idea in my head that it needed to have separated, twin wastegates to be a twin scroll manifold

Help would be greatly appreciated as i am about to put a deposit on the new turbo any day now

Thanks in advance

Brad

[Joshbigt62r]

Does not have to have twin gates to be a twin scroll. Just needs the single gate located in the right position. At work can't full explain.

All the t78/88 manifolds I've seen are twin scrolls.

Josh

[ido09s]

Thanks Josh

I have neevr actually looked at, or thought about, twin versus single scroll turbo's and now that we are going to swap the T78 for a 6766 its something that has been asked

I nitially just said an open turbo, but glad i looked as i would have made quite a costly mistake

[wolverine]

You can still use an open housing on TS manifold.

[ido09s]

I dont believe they are as affective though are they?

[wolverine]

If you have a TS manifold and can get a suitable TS turbine housing then you should have gains low down.

At the top end the divider might cost you a little.

I would go for the TS housing since you have a suitable manifold and enjoy the better response.

[ido09s]

Pretty obvious flow would be restricted given the chunk of metal in the way.

All sweet though, lets hope they have the TS in stock now

Thanks heaps for the quick responses guys