I got an Exhaust Manifold made a while back for my 20b Single turbo.

At the Time for ease i got them to make a None Divided one as i thought with the Size of the engine etc i would'nt have a problem Spooling it up (which i didn't)

Now i wish to go for a huge Turbo and to save as much of my Responce as possable i wish to make a Fully Divided one.

My problem is with there being three Exhaust Runners how do i make it Devided whilst still being ballanced?, is it as simple as running 2 together then keeping the dubble one and the single devided? But would'nt that be defeating the Object?

This is somthing that's been bugging me for a while, Any Idea's?

Thanks.

Chris

 

No One?

 

I don't think that will work. The whole purpose of the divided manifold and turbine housing is to separate the exhaust pulses.

I guess you could make a custom 3-way divided manifold and turbine housing. The main problem with this is that while nozzle #2 would hit the turbine at a nice 90deg angle, nozzles #1 and #3 would hit it at more acute angles, depending on your AR ratio. A radially divided setup would solve this issue, but then reversion would be a problem.

I think you are better off just using a nice low-inertia BB turbo, or going to a twin or triple turbo setup.

 

Ok, I was not sure if there was a way of doing it but with three runners its always going to be Unbalanced.

Cheers.

Chris

 

your turbo is too big if you have that much lag on a 20b. try going to a smaller turbo, and maybe get a bb one. all your problems will be solved.

 

oh and maybe your ports are too big, making the motor a pig down low. did you get a huge street port or the like?

 

Run 3 smaller turbos...

-Ted