What's the general consensus on this one?

My engine (V8) is mid-mounted and there's a central-scoop on the bodywork to facilitate air-flow to the area of the throttle body trumpets.

The easiest route would to be fabricate 2 simple back plates for each set of throttle bodies and use a 'sausage' style airfilter on both.

I'm a little concerned however that the air from the 'scoop' will just get lost under the rear bodywork and that the engine will suck up warm air rising from the block below.

Am I over-worrying... or should I use something like the the Pipercross Viper / BDA systems to direct filtered air into an airbox?

i recon the suction will be sucking at the air coming in from the scoop anyway, but if the air isnt directed over the trumpets enclosed like, then the warm air is going to mingle, as there isnt anything cordoning off the cold air from the warm. so if you need ultimate cold air, fashion an airbox/catch box that will catch the air and funnel it straight to the trumpets, and stop the warm air from mingling with it (ie box is airtight to the engine bay)
thats what i recons
al

Good 'reckon' Al... I was thinking about making something like this for each cylinder bank... HERE (not paying £200 each!).

I'd say it depends very much on how much space there is. A small airbox will strangle the engine horribly. I'd be tempted to put some baffles to "guide" the cool air towards the trumpets (with sausages as they're easy to fit) but I'm not sure I'd be bothered enough to make a hermetically sealed airbox!

Personally I'd go for whatever is simplest. Recently I've been busy with my homebrew beer and there's an interesting difference in attitude between LB and the homebrew forum.
On LB, you ask a question and you get 10-20 different technically clever answers. The answer on the homebrew forum is usually "stop bothering about it and get on with making some beer"....
Trouble is I like pedantic problem solving and trying to squeeze the last % of efficiency out of a situation Then again, this year I've probably spent 50 hours fettling and 5 hours driving. Perhaps the answer is to go for the best easy option and avoid the just-a-little-bit-better-but-horribly-complicated options....

How about something like this:-





Carbon or glass sir?? Your choice!!!!!

Very nice!

If it's any help, cars with airboxes sound much better.

It focuses all the intake roar and points it forward of the car rather than an unfocused din coming out the side.

I vote for an airbox - for no ther reason.
Oh yeah, cold air is good too.

You can never tell which way air is likely to flow into (out of) scoops.
All depends on bodyshape, aerodynamics relative pressures and who knows what else!

quote:

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Originally posted by minitici
You can never tell which way air is likely to flow into (out of) scoops.
All depends on bodyshape, aerodynamics relative pressures and who knows what else!

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