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Fuel saver

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Old Jul 14, 2008 | 01:29 PM
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Default Fuel saver

Okay okay flame me if you want , this looks like a bag o shit but whats the principle behind it?, dare i say does it work?

I dont like the idea of sticking in between the air filter and TB

http://cgi.ebay.co.uk/Fuel-Intake-Gas-Save...tem160261146147
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Old Jul 14, 2008 | 01:49 PM
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Absolute and utter gash! I am shocked you asked

You have to insert it and bend the fins.

I think it just restricts the amount of air which can be drawn into the engine - so basically will mean you lose a lot of power. Any restriction would be picked up by the MAP or MAF and therefore would reduce fuelling accordingly. Even though it's after the MAP, the restriction means the engine cant pull as much air.

They have made it a fancy shape to make it look better

Might be fun to ask them some technical questions.
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Old Jul 14, 2008 | 01:56 PM
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Originally Posted by MB,Jul 14 2008, 09:49 PM
Absolute and utter gash! I am shocked you asked

You have to insert it and bend the fins.

I think it just restricts the amount of air which can be drawn into the engine - so basically will mean you lose a lot of power. Any restriction would be picked up by the MAP or MAF and therefore would reduce fuelling accordingly. Even though it's after the MAP, the restriction means the engine cant pull as much air.

They have made it a fancy shape to make it look better

Might be fun to ask them some technical questions.
Ha , I was hoping i would get some zany replys and comments

Seems like the vortex effect hmmmm!
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Old Jul 14, 2008 | 02:04 PM
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You need the "turbonator!!!"

400 extra bhp for
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Old Jul 14, 2008 | 02:12 PM
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[QUOTE=MB,Jul 14 2008, 10:04 PM] You need the "turbonator!!!"

400 extra bhp for
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Old Jul 14, 2008 | 11:25 PM
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There is a lot to be said for turbulent flow. By creating vortices at the wall of the intake pipe, you energise the boundary layer and reduce drag in the pipe.

Equally, by having a turbulent flow at the point at which it mixes with the fuel will indeed ensure maximum mixing of the fuel/air mixture.

BUT

this PoS will not do either of these, or rather, may do, but the additional drag caused by putting a dirty great lump of metal into the flow will negate any gains to be had with vortices.

What you need to do is to design the intake tract such that the interior surface finish and the shape of the pipe encourages a mainly laminar flow, with a few small vortex generators along the wall to reduce losses due to drag. You would also need to design it to make the corners as flow efficient as possible. This will required a test rig or a piece of CFD Software and run-time on a supercomputer.

I would respectfully suggest that the "designers" of the item have not done this. I would further venture that the nice people at Honda probably have...

Remember, in Aerodynamics, as in divorce, it's not about making gains, it's about minimising losses!
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Old Jul 14, 2008 | 11:57 PM
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But but but it says I can get extra 35+ horsepower.....

Oh, hang on, maybe that means I can actually only get 35 horsepower?
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Old Jul 15, 2008 | 12:58 AM
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I will buy one and take it to my before and after dyno for my exhaust.

Puppy " Myth buster " North
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Old Jul 15, 2008 | 01:20 AM
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You better hope a bit of it doesn't pop off and end up in your engine then.

Wouldn't put that in if you paid me.
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Old Jul 15, 2008 | 06:13 AM
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Car Talk or Muppet Forum
It's a hard decision!
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