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High Mount Or Low Mount ?

The Bogan

By The Bogan,
in Engines & Forced Induction

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tridentt150v Grand Master

tridentt150v

Posted
Posted

Best flowing manifold is/was the HKS cast low mount, the only true low mount. But you'd likely not notice the advantage, I don't. A high flow makes it easier access for the turbo, but increases scrutiny from the porkers.

I'd save your $$$ and use the std manifold, get it extrude honed if you want.

BTW, to me a std manifold is a side mount.

BHDave Grand Master

BHDave

Posted
Posted

it's either for looks or because there isn't enough space to fit it low mount.

from a performance point of view you want it low and as far back as possible (ie COG and weight distribution concerns) but for 99.9% of people it makes no difference.

(OO)SKYLINE(OO) Grand Master

(OO)SKYLINE(OO)

Posted
Posted

I find twin low mounts more responsive. (Street / Track / Circut)

Then again twin high mounts will get you even further. (Track / Circut)

Big single high mount is more laggy but can achieve a ot higher in at the top end. (I suggest for Drag Racing).

The Bogan Grand Master

The Bogan

Posted
  • Author
Posted

OK now im loaded with enough info to make my desicion even harder, going low mount, single, just not sure which way to go in the material used, maybe mild steel steam pipe, maybe standard manifold.

What i need is some unobtanium.

Hmmm, Ive seen some pipes lying around that old government research facility. :P;)

GeeTR Grand Master

GeeTR

Posted
Posted

You've neglected to mention desired power, drivabilty goals / turbo choice, thats where the answer is I'd say.

From what i can see/hear, theres not enough room for the low mount m.fold required if response from your larger framed turbo is needed.

If your needs are T3 hot side based, then you could save a lot of hassles, $ and time by using teh stocker.

(OO)SKYLINE(OO) Grand Master

(OO)SKYLINE(OO)

Posted
Posted
OK now im loaded with enough info to make my desicion even harder, going low mount, single, just not sure which way to go in the material used, maybe mild steel steam pipe, maybe standard manifold.

What i need is some unobtanium.

Hmmm, Ive seen some pipes lying around that old government research facility. :happy:;)

All depends on what you want to use the car for, Daily, Street, Track (Circut / Drag)?

How much power you want to achieve?

Then work out whats the best set up.

Kranker Collaborator

Kranker

Posted
Posted

High or low mount tends the be directly caused by the need to have more room.

i.e. a large turbo physically wont fit as a low mount.

Low mount = shorter exhaust manilfold pipes, shorter induction pipes, so better response (usualls also a smaller turbo)

High mount = longer exhaust manilfold pipes, longer/more induction piping, less response, but you can fit a much larger turbo

Basically decide on what the goals are for your engine, decide on what turbo (and manifold) and that will tell you if you need to go high mount, or if you can keep the low mount configuration.

W0rp3D Grand Master

W0rp3D

Posted
Posted

you need to answer some questions:

1) what do you want to use the car for?

2) how much power do you want (will be partly answered by question 1)?

3) do you want the wank factor of a high mount (take into consideration that if you only want 250rwkw then a high flow is going to look dicky as a top mount)?

4) and most impotantly (for some) how much do you want to spend?

Answer these and you will have your decision made for you.

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