All great things have a beginning

[Mr Spiller]

I now own some cosmo plates

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Oush
Happy man


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[Grant Monkhouse]

As you  can see one face of the centre iron needs lapping, these plates have never been lapped before so should be just fine and not require re nitriding.

Carl was going to get them done but I said I would just take the plates now and we can get them done when we need it doing and prepping the parts to get stacked together.

Getting some rotors from him but haven't got the pennies just now

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[Grant Monkhouse]

Here's a comparison of stock cosmo plates versus the stock fd lower intake, I'm trying to work out the percentage difference in surface area but my brain is failing me on how to do it but so far I have determined the fd port is close to 30% smaller in surface area compared to the cosmo plates

Thats like starting with a street ported motor and then mega street porting the street port

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[Mr Spiller]

As you  can see one face of the centre iron needs lapping, these plates have never been lapped before so should be just fine and not require re nitriding.

Carl was going to get them done but I said I would just take the plates now and we can get them done when we need it doing and prepping the parts to get stacked together.

Getting some rotors from him but haven't got the pennies just now

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Nice big ports


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[Grant Monkhouse]

This is a stock fd inlet port on the centre

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[Mr Spiller]

Here's a comparison of stock cosmo plates versus the stock fd lower intake, I'm trying to work out the percentage difference in surface area but my brain is failing me on how to do it but so far I have determined the fd port is close to 30% smaller in surface area compared to the cosmo plates

Thats like starting with a street ported motor and then mega street porting the street port

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Just difference in height yeah ?
About 15mm ain't it ?


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[Grant Monkhouse]

Quick crap maths and rough measurements of the port circumference

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[Grant Monkhouse]

Here's a comparison of stock cosmo plates versus the stock fd lower intake, I'm trying to work out the percentage difference in surface area but my brain is failing me on how to do it but so far I have determined the fd port is close to 30% smaller in surface area compared to the cosmo plates

Thats like starting with a street ported motor and then mega street porting the street port

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Just difference in height yeah ?
About 15mm ain't it ?


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Yeh the width is the same give or take a mm.

They can't make them any wider as the width of the plate would effect the length of the engine and everything else etc

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[Grant Monkhouse]

So if I have worked it out correctly the cosmo port area has an increase of 43. 3%!!

That is just rediculous.

Does that translate to a 43.3% in increased "flow" or total Volume available for the engine to injest?

Simplest way to make your "stock" fd make more power than everyone else si. Ply get some cosmo plates

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[Grant Monkhouse]

Would you just look at that, built my engine already, decided to use see through housings etc to speed up the process

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[Mr Spiller]

So if I have worked it out correctly the cosmo port area has an increase of 43. 3%!!

That is just rediculous.

Does that translate to a 43.3% in increased "flow" or total Volume available for the engine to injest?

Simplest way to make your "stock" fd make more power than everyone else si. Ply get some cosmo plates

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Sounds  about right 
I'm only decent with maths until they started adding letters lol
If port is 50 mm and new is 65 that 30% bigger . Dismiss the curves on each corners from the original size
Yep sounds about right
Best tee my Cosmo engine up then
Will This 8474 work on that


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[Mr Spiller]

Would you just look at that, built my engine already, decided to use see through housings etc to speed up the process

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Need a bigger intake now


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[Grant Monkhouse]

Would you just look at that, built my engine already, decided to use see through housings etc to speed up the process

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Need a bigger intake now


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Already got my eye on what I'm going to use, I shall get a picture

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[Grant Monkhouse]

So if I have worked it out correctly the cosmo port area has an increase of 43. 3%!!

That is just rediculous.

Does that translate to a 43.3% in increased "flow" or total Volume available for the engine to injest?

Simplest way to make your "stock" fd make more power than everyone else si. Ply get some cosmo plates

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Sounds  about right 
I'm only decent with maths until they started adding letters lol
If port is 50 mm and new is 65 that 30% bigger . Dismiss the curves on each corners from the original size
Yep sounds about right
Best tee my Cosmo engine up then
Will This 8474 work on that


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Yeh it will work for sure, if I think right with the larger port you should make more power with same boost due to there being more denser air going into the engine.

I thinks its similar to a smaller turbo compared to a larger one. The same psi will achieve different hp simply because a larger turbo is moving a higher cfm of air just simply because of its physical size.

We won't even try to work out what happens when you throw air density into the mix lol.

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[Grant Monkhouse]

Lower inlet fanimold and throttle body. Not sure if I need the 12 Injector one though probably get the 8 injector one maybe

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