I asked Chris @ MNR if I would have any cooling problems when driving The Ring in 30 deg.
Nooo problem he says.
But it runs warm.
So I cut a little alu to block some of the air around it.
Cooling is much better now.
Especially when standing still.

Soren S2
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Nice mod. I imagine it's not doing aerodynamics any favour being in that orientation (the ali plates) but on a 7 roadster, I think that's a drop in the ocean as far as drag is concerned!

nice mod, something i've been thinking about doing to my indy for some time now so the air actually goes through the rad rather than around it!

i very much doubt it'll make any difference to the aerodynamics of the car as it's not like any air entering the engine bay has a clear route back out anyway.

ducted my V8 mnr to make sire as much went through the rad as possible ( rather than round )

regards

Agriv8

Nice mod. I also would have been tempted to angle the side plates to "force" air into the rad rather than just preventing it from going round the sides but as said, from an aero point of view its a drop in the ocean of badness

There was a thread on the WSCC a while back about a similar modification, which sparked a lot of debate as to its effectiveness. It made interesting reading, but I can't find it anywhere though!

hmmm. not the way I would do it.

Admittedly all the air entering the nose cone must pass through the radiator but when the air hits the solid part, it does what? Does it help air flowing into the radiator or disrupts its flow?

A better way would be to have angled plates from the nose cone opening to the sides of the radiator to funnel the air through it.

I've used angled bits into the radiator, and it was effective.
I also opened up some air entrances (using naca ducts) so the is some cool air circulation arounf the engine...

quote:

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Originally posted by JoaoCaldeira
I've used angled bits into the radiator, and it was effective.
I also opened up some air entrances (using naca ducts) so the is some cool air circulation arounf the engine...

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That is the way air is channeled in aircooled aircraft engines. There is an orange coloured rubber or silicone product used for the purpose that is riveted to the ali, probably lighter than what you have used. Good work.

i like it. Oddly, I have noticed that my engine runs cooler with the nosecone on, so it can't hurt to add that, can it!?

Well......

I drove it on the Ring 2 weeks ago in 28 deg. Sun.
It ran hot. 105-110 deg. driving the Ring.
When I parked in the queue out from the Ring it ran above 110 deg.

With this mod it stays under 100 deg. driving and under 95 deg. in queue. Weather beeing 32 deg. Sunny.

So it works.

If you funnel it into the radiator, you make a high pressure area in front af the radiator.
This makes a hoovercraft effect in front of the nosecone.
Meaning that the air slows down and very little coes into the nose.
That is in some cases.

I did make small holes so some air vents the enginebay.

Soren S2
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And I guess that as the entire enginebay is open downwards some air will flow trough the bay.

Soren S2

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Think i'll do this mod asap after running a bit hotter than i wanted @ Abingdon trackday

any chance you could put the photos up again just so i can copy the design

i dont get how it has a 10 deg benefit in standstill traffic as there is no flow to channel?

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Originally posted by Kriss
i dont get how it has a 10 deg benefit in standstill traffic as there is no flow to channel?

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Exactly.

Soren S2