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marcoos_1
November 13th, 2006, 03:36 PM
Does anyone have airscoops fitted that work? I want to fit something that will ram cold air into my filter/throttle body. I'm sure I've seen a pic of a car with two scoops on the roof to get cold air to the filter. Has anyone made anything up that works? I was considering making scoops up for the triangular side vents on the rear clam, then making up some ducting to carry the cold air to the filter.

If anyone has a set of fibreglass scoops then I'd be interested. I've never really done any fibreglass work like this myself, so I don't really know where to start!

guy mayers
November 13th, 2006, 03:54 PM
Group 4 cars had huge airboxes on them that were connected to the side vents with a tube. The louvre panel was hinged at the top and located with pins and R clips at the bottom to allow the connection to be made between the ducts from the side vents to the airbox. There are pictures posted by Tryphon somewhere on the site showing this airbox.
Hope that helps!
Guy

pimms
November 13th, 2006, 10:16 PM
I posted this one in the buy sell section but there are some pics of hte air scoops and air box.

http://www.fa-automobile.com/detail_vente.php?id=24&v=688&PHPSESSID=906a47e0cab5fe0be769c8b31910bb77

I have also seen ,on Abingdon 2005, a red car with a scoop between the roof and roof spoiler. You can see a part of it on the attached picture. Of course this will block youre vieuw to the rear completely.

marcoos_1
November 13th, 2006, 11:49 PM
Yeah, this is the sort of thing I was considering. Major mods to the car I guess. Is there any downside to cutting away the bottom deck? Strength, water ingress etc? My initial idea was to try and come up with an airbox at each side that 'seals as it lands' when you close the rear clam, therefore no need to have access through the louvre. All I would need is a moulding that fits the back of the triangular panel.

Any better pics would help. I'll try a search on Tryphons pics.

Is everyone else just drawing air from the engine bay?

Thx guys.

tryphon
November 14th, 2006, 12:47 AM
This setup was used only in hot/dusty environments like the Safari or Acropolis. Too complex elsewhere with little/no added value.

This is what you need:

GaryFitz
November 14th, 2006, 02:31 AM
Trypon is correct, I have an airbox which is fed from to flexible pipes from either side of the car. Beside being of dubious benefit, they are a pain in the neck to re-connect when you lift the engine cover. I will attach the only photo I have which shows the airbox and the obvious connection points which lead to the outside vents.

Note, tried to attach but I have no idea how to make the photo small enough so that it can be attached. But anyway, imagine an airbox with pipes at either end that connect via flexible pipes to teh vents on the side. Cheers Gary

chris.richard
November 14th, 2006, 03:01 AM
On the Lancia and hawk the small oblique strut from the frame to the roll cage gets in the way doesn't it?

marcoos_1
November 14th, 2006, 03:01 AM
Tryphon/Gary,

are you saying that it's not worth trying the set-up shown in Tryphons pic, or is that the type of thing that is worth trying?

There doesn't seem to be many other options for ducting cold air to the filter......

right now my filter sits here.....not ideal........

tryphon
November 14th, 2006, 03:14 AM
The benefits of this setup must be weighed against the disadvantages.
The effort of fitting it is only worth if there's added value in using it.
In your case I do not think the benefits quite balance the disadvantages, don't use it.

Remove the cone filter and fit a proper air box. You will see much more benefits for a lesser effort and cost.

pimms
November 14th, 2006, 08:31 AM
Maybe these will help?

SUSIT
November 14th, 2006, 11:11 AM
Is the exhaust system got heat wrap to try and reduce under bonnet temp?
I think I would have some attempt at ducting although my understanding of supercharging makes me think that as you compress air it gets hot so would that make it less important unless you can really lower the intake temp?
Sando any thoughts on this one?

strat6v
November 14th, 2006, 12:27 PM
'Pre-heated air for the supercharger would be no good. The cooler that charge can be the better. Roll up an ally can to go round that cone filter and put a large bore duct to it from the near side opening.

If you are running higher boost then have a look at water injection, cools the charge and would close the tolerance on the blower lobes too.

John.

Sando
November 14th, 2006, 12:33 PM
Beat me to it John !

It makes it more important really...if you want to take advantage of the extra power you could get if set up correctly. Yes Charger will heat up the air so the cooler you can get it befor it gets compressed the better.
Get some flexible 2" tube up to the side vent from the filter and see if it makes any difference? (it gets squashed a bit over the chassis rail but it can be done) You'd have to box the filter in to make a real difference though. I tried it but didn't notice anything. It was mainly for my own confidence in the intake air not getting too hot and starting to get detonation that I did this with my Vx.

cheers
Bobster

strat6v
November 14th, 2006, 12:40 PM
Regarding the little tube by the body opening, instead of squashing a pipe behind it, shape some more ally sheet and incorporate that tube in the scoop. If your handy with a bit of sheet metalwork then it would be a worthwhile job over winter. The cooler the charge then the less chance of detonation.

Bobster, remember the square to round tinwork job? :)

John.

Sando
November 16th, 2006, 12:26 AM
Bobster, remember the square to round tinwork job? :)
John.

Yes mate :cool:
Mind you a chap in Chesterfield did once tell me you were a reet bender :eek: :D

Bobster


PS Mark, I have a pair of Vx modified pullies for over gearing sitting in my Garage. Larger crank pulley and smaller Blower pulley. Shaun has first dabs but you really only need one or the other, both would be too much and over rev it. They came with my original engine (which Brent now has) I had one one made mid way between the two in the end, so never used them.

marcoos_1
November 16th, 2006, 09:04 AM
Interesting.....

pm for you.

chris.richard
November 18th, 2006, 04:06 AM
Trypon is correct, I have an airbox which is fed from to flexible pipes from either side of the car. Beside being of dubious benefit, they are a pain in the neck to re-connect when you lift the engine cover. I will attach the only photo I have which shows the airbox and the obvious connection points which lead to the outside vents.

Note, tried to attach but I have no idea how to make the photo small enough so that it can be attached. But anyway, imagine an airbox with pipes at either end that connect via flexible pipes to teh vents on the side. Cheers Gary

Here's the pictures from Gary