Nearly finished off the carbon airbox tonight should keep cold air being pulled in even when stationary or in traffic.

Ok so its not fancy or particularly pretty, but its light and should do the job


Air box 1


Air box 2


Air box 3

Cold air is drawn in the vents in the side of the bonnet

[Edited on 5/5/10 by flak monkey]

Looking good mate...

U2U2U...

ye looks ok to me from here

What does the hole/scoop in the bonnet lok like? Im planning something similar but havent decided where to pick up the cold air. Ps sorry if ive missed it in a previous post

Like this


Side close 1

Thats nice and tidy, is there a minimum size it needs to be? I was worried about my idea not being big enough!

I dont suppose there is as long as it will flow the CFM required easily....

If I get problems I will make some bigger vents

Good old trial and error

Yep, the slots are fairly big anyway - 20mm wide and 100, 75 and 50mm long.

Probably doesn't make a lot of difference, but aren't those slots in a fairly low pressure area? NACA duct might be quite effective?

[Edited on 5/5/10 by MikeRJ]

David
That's a very good solution for the limited space you have under bonnet.

Would a NACA duct on the top of the bonnet not give you a slight ram air effect which might improve the airflow...

that looks spot on david, should work a treat

very impressive installation

- colin.

Thanks chaps

I was looking at the Naca Ducts at Stoneleigh, but didnt have enough money to get one at the time.

Maybe an addition for next winter