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The mkiv Supra Owners Club

Single manifolds...Single or divided entry T4?


Andy-No-Knee

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Looking at getting a new single manifold as I may be going for a larger single turbo. The maniflod I currently use is an HKS T3 undivided mount.

 

Lots of the manifolds I am seeing show either a divided T4 mount or a single large undivided T4 mount. And I have read that the divider is used when the pulses from cylinders interfer with the flow from other cylinders.

 

My question is does the 1JZ/2JZ GTE engine require a divided mount or a non divided mount.

 

 

Thanks!

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Huh!?!?!

 

I would think (with my increadably limited knowledge on the subject) that the question of division is if the engine cylinder firing order is sutch that it sends conflicting pulses to the manifold and turbo, that would then dictate if you need a divided manifold and turbo or not.

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Divided housings are more useful for 4 cylinder engines due to less exhaust pules for a given RPM. Apparently it's not so much use on 6 cylinder ones but I doubt it'd hurt getting a divided manifold and housing though. You might see and improvement, or it might be too small to notice.

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  • 3 weeks later...
It is possible, but the divide will be burnt and eroded away by the exhaust gasses, covering your turbine in nice motlen metal bits :D Hence why I said its cool to run an undivided housing on a divided manifold but not vce versa.

 

:yeahthat:

 

Ive been running a divided housing tubby on my undivided cast manifold for as long as I can remember, it hasnt turned it to molten metal but when I removed the turbo it was certainly cracked on the divide, this didnt stop it working just fine though but its not ideal :D

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