Silvertc

iTrader: (1)

I am trying to get a hold of a ram horn. But the thing is the one im lookin at doenst have a divided flange. But the Holset turbo is a divided house, would this hurt it? or will it be ok

96 GSR-T

It cancels out the benefits of the divided housing but it will work, my friend is running a 42R on a non divided manifold.

AdamB18C1EK

i have a divided housing t4/t67 on an inline pro log manifold. the manifold is not divided and my car spools/makes power just fine

90blackcrx

It will work but why not get a ram horn made with a divided t3 flange ? We can do it for you.

91jdmhatchback

Because that would be pointless and stupid, divided manifolds were made for a reason. Just slapping on a divided flange is just plain retarded.

think about it?

t57b18

it will be fine with out a divided manifold i have never ran one and most of the turbos i have had was a divided housing ..

Mr. Em1

iTrader: (1)

its fine, still work great u just wont get the benefits from a divided manifold

90blackcrx

I'm not talking about just slapping on a flange, I'm talking about making a manifold with a divided collector and flange.

HiProfile

Even if he was, he'd have had a point. Divided t3 flange inlets are wider from one volute edge to the other, 62.5mm overall as per Garrett. A normal undivided t3 flange is 57.2mm wide. The extra .3mm height for the divided is negligable, IMO.

A divided housing on an undivided manifold won't loose any noticable power over an undivided housing, given the same AR, as long as you knive-edge the divider. However, a fully divided manifold can usually help decrease spool time by 500-1000 rpm, AND make more power - given the same AR size. The key in power is there is better scavenging, as you don't get adjacent cylinders' exhaust pulses pushing exhaust back into another cylinder during the overlap period.


Cliffs: no losses, but you have lots to gain if you get a divided manifold. It would spool like a smaller housing, and make power like a larger unit.

90blackcrx

I don't consider it being pointless if you can improve the overall setup. Really should depend on his overall setup and goals.

HiProfile

Sorry, I meant YOU had a good point, I just didn't quote/clairify well. You you were right regardless of it being just a flange or the whole manifold.

Just a little bit more info about a divided setup - its more resistant to reversion-related detonation. I've seen people pay for more and get less for other parts (ex. 90mm throttle body) when compairing cost-vs-benifit of a divided manifold.

90blackcrx

You fail at qouting

Silvertc

iTrader: (1)

wow thanks for the responses guys! This is the first time people have actually been helpful, usually people act like no it all's. I'm still learning and will admit. I will run this for now until i can get my hands on a divided manifiold!