IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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was thinking before if you were to build a mantzel type inlet but with a throttle on each end would it work well or would there be too much air going in?  
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Matt L
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Registered: 17th Apr 06
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(dont know what matzels do tbh) but why would you want two throttles?
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Colin
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Registered: 4th Apr 02
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Id expect you would need the fueling to match & a bloody clever ECU to make it all work 
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IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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more air into the block
like throttle bodies but instead of 1 throttle on each bore is 1 for 2 bores
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Colin
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Registered: 4th Apr 02
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Thinking about it, I dont think it would have much effect over just 1 inlet part. (if im getting what your saying correct) as the air will still be restricted over the inlet still as its just as its just at atmospheric pressure. Que fourced induction to solve all problems.
[Edited on 11-04-2008 by Colin]
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James_H
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Registered: 16th Sep 07
Location: Slough, Berkshire
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sounds like a good idea, 2 induction kits 
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Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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The X14/16 have a MAP sensor?
If so, it may not be as complex as it seems, if you just had one TPS sensor working. I'm not sure if airflow would be 'confused' by having 2 different inlets into the manztle if they are on opposite ends. Air may possibly have to change direction inside the box part
Disclaimer: This may be complete rubbish
[Edited on 11-04-2008 by Mike B]
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IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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if it was section off half way through?
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Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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That'd just be like a normal Mantzel. It'd back to having just one inlet realistically
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IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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not really twice as much air
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Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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How when it'd only have 1 inlet? It'd be 1 inlet into a smaller box so it'd only have the same flow, only advantage I could see to that is slightly shorter route for the air too cylinders 3 & 4
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IvIarkgraham
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Registered: 27th Mar 04
Location: Ellesmere Port, Cheshire
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well 2 throttles so twice as much air
each throttle going into a smaller box
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richc
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Registered: 24th Mar 07
Location: Ilkeston
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yer take twice as much air but it would need fuel to match. And then it would just be too much for the engine to handle. Wouldnt go any quicker, use loads of fuel and die!
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Mike
Organiser: North West and North Wales
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Registered: 20th May 06
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Sounds like his current engine
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ShEp
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Registered: 9th Aug 05
Location: Dingwall, Highland
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quote:
Originally posted by IvIarkgraham
well 2 throttles so twice as much air
each throttle going into a smaller box
not twice as much air 
think about it
the inlet is a certain size so you can stick 5millionty throttles on it and it wouldnt make a difference, as its still just filling up the manifold
the 1 throttle provides plenty enought air, evrn when the engine is breathing more, a slightly larger throttle body would have much the same affect as your idea with a lot less work
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allza
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Registered: 14th Jun 04
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Yep cant see it making any difference really. Wont be twice as much air. Can only suck as much air in as the cylinders can draw in.
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BluKoo
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Registered: 8th Apr 02
Location: Stonehaven (Scotland)
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It would have to be very well engineered to get an even air flow.
I'm not that clued up, but if one side was sucking in more air than the other, or quicker than the other then there would be a wierd turbulence when the air flows met in the middle. Propbably wouldn't have any gains.
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Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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quote:
Originally posted by BluKoo
It would have to be very well engineered to get an even air flow.
I'm not that clued up, but if one side was sucking in more air than the other, or quicker than the other then there would be a wierd turbulence when the air flows met in the middle. Propbably wouldn't have any gains.
That's what I meant earlier, just he explained it better
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