Miata intake mani

[bhearts]

My buddy just invested in a flow bench I can get you his contact info if your looking to see gain.

I am curious to figure out how much each runner can suck over a factory b6t manifold. But, since it's going to be a turbo manifold now, there's really no need for that information. Sucking cfm doesn't really equate to blowing cfm.

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[Hot_Wheels]

My buddy just invested in a flow bench I can get you his contact info if your looking to see gain.

[Advancedynamix]

That all depends on where your turbo will sit.

[bhearts]

I'm turning this project into a integrated air water intercooler system. Should the inlet face trans side or accessory belt side. ?

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[bhearts]

it lived a short life

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[bhearts]

Can I get someone interested in this at 250. I need to get the throttle plate cut out for a specific throttle and if someone can commit I can ensure it can be factory or aftermarket of your liking. Can also do sexi fuel rail with mounting tabs if you're interested in that too. Pm for working out details.

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[Advancedynamix]

The rough finish thoery is to avoid pooling in a carbureted situation. With F.I. you'll want a smooth finish. Like ZephTheChef said, there is no noticeable flow difference, but rough finishes hold oil and tend carbon up faster.

[bhearts]

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[bhearts]

I have seen plenty of flow bench experiments over the years with anything from dimples to rough ground surfaces to mirror polished ports. The general consensus is that flow wise, any flow bench changes due to surface texture are within such a small margin as to not be reliably measured. For that reason, I am of the school of thought that a rough surface with plenty of fuel-vaporizing surface area is best for ports. But ultimately it doesn't matter one bit. Granted, flow bench data does not always line up with real world...But I don't think any particular surface is better enough than any other to even be worried about.

We're not talking head ports though. I smoothed everything that is not in direct contact with the fuel.

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[ZephTheChef]

You don't want smooth. If it's already smoother than factory leave it alone.

I have seen plenty of flow bench experiments over the years with anything from dimples to rough ground surfaces to mirror polished ports. The general consensus is that flow wise, any flow bench changes due to surface texture are within such a small margin as to not be reliably measured. For that reason, I am of the school of thought that a rough surface with plenty of fuel-vaporizing surface area is best for ports. But ultimately it doesn't matter one bit. Granted, flow bench data does not always line up with real world...But I don't think any particular surface is better enough than any other to even be worried about.

[sketchman]

You don't want smooth. If it's already smoother than factory leave it alone.

[bravekozak]

Let your finger be the judge of that.

[bhearts]

It's noticeably smoother than the factory casting. Should I take it past 60 grit rolls?

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[bhearts]

porting

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[bhearts]

I hope to get this wrapped up this weekend. How should the throttle body attachment be, studded x 4?

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