steve m
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| posted on 8/6/11 at 10:50 AM |
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Does a carburetter need an airbox?
I really need to stick some type of filtering on my carb, yet the way it is situated in the hump on the bonnet it is to close to have a filter or even
a box, so my my idea is to fit two right angled elbows in to the two 38mm holes, and from there run hoses to a suitable box filter arrangment
The carb is a 28/36 dcd, but both holes for the venturi are 38mm wide,
the type of elbow would be like this ebay link
90 degree Stainless Steel Mandrel Bend 38mm 1.5inch | eBay UK
should i ??
will i lose anything
regards
steve
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smart51
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| posted on 8/6/11 at 11:16 AM |
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airbox not needed, strictly speaking, but filtration is a good idea. A foam "sock" filter would do the job. Air boxes do have their
uses, though.
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deezee
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| posted on 8/6/11 at 11:23 AM |
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It sounds like you'd be increasing the intake length of the engine. Its on par with fitting enormous trumpets onto the carb body. I think
you'd make a bit of a mess of the engine doing it this way.
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zilspeed
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| posted on 8/6/11 at 12:24 PM |
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Some non scientific stuff here.
1) I have run a low powered engine with and without a dedicated cold feed to the front of the nosecone. The difference is signifacntly large that you
can feel the difference.
2) Way back in the days of Clubmans A cars running 1700 xflows, some used to run without airboxes and some with. The ones with the airboxes sound far
far sharper and crisper than the ones with just a bucketfull of Webers hanging off the side.
Airboxes.
I'm a fan.
See, no science, I just like them.
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dhutch
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| posted on 8/6/11 at 12:42 PM |
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Yeah, without some sort of air box i cant see it being other then very ugly.
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Bare
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| posted on 8/6/11 at 03:44 PM |
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Actually Airbox's DO add performance. Carburation / tbs' really do work better with clean still air to inhale.
Best provided by a decent plenum.
As example; removing the airbox on a Moto really messes up the power output and smooth running.
Yes... it can be worked around IF a factory Race team with serious knowledge and resources.
But the average Shmuck owner just screws it all up by simply removing the airbox.
So yes.. Fit one, it will help :-)
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