The theory of cold air on any intake system of a motorcycle will make it run healthier and even providing overall efficiency of the motor but, the question is? Not everyday the air is cold. During summer season, the temperature is hot and so does the air being sucked by our intake system, thus giving us sluggish throttle response and sometime bad fuel efficiency. Post Air/Fuel mixture adjustment might not come in handy for again not everyday we have same ambient temperature during run.
Mostly carburetor engines suffer from this air temperature changes. There is no electronic computers that adjust itself on how much fuel to give just like Electronic Fuel Injection (EFI) system does.
Facts: Only a true motorcycle rider will feel the effectiveness and the downside of travelling on lower ground then going uphill to the mountains where altitude differs that the motorcycle will be pulling hard on some cases due to the fact that if the mixture adjustment was prior to lower altitude, will be different when at higher altitude. Density of Air is a greater factor for carburetor type engine. and vice versa.
And so why we not try to utilize the cold air that will enter the intake system, in an absolute control, irregardless of the temperature outside.
Introducing the THERMOELECTRIC MODULE based cold air intake that will provide relatively specific temperature of air being sucked by the intake system of our motorcycle. And with the help of a thermostat module that will control the air temperature inside the air box. Actually this is an Air box modification that will allow for the placement of the cold air drawn by the intake during run.
The idea is to put the cold side of the module with an aid of a small finned heat sink that will act as evaporator inside the air box with temperature sensor also fitted inside, while as the heat side of the module is drawn out again fitted with a larger heat sink now with a controlled fan that act as your radiator fan to dissipate the heat of the module on the heat side to prevent it from breaking down and collapse.
Cold Air Intake Modification for Motorcycle
1/08/2019
cold air intake
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fuel efficiency modification
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intake modification
,
motorcycle airbox
,
motorcycle efficiency
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throttle response
Nice idea. Probably, you intend to use a peltier unit. I would love to see how it works. By the way, what is the idea temperature of the air for intake?
ReplyDeleteI dont think Peltier will be effective. They are Inefficient. Too much power draw. Hardly any cooling.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteOk, this post was actually drafted as the date was posted, someone messes up with the site. I been trying the PELTIER unit. It has the ups and down so I immediately stop the test. At first start up, it works, but then since the current drawn by the peltier was 6amps. Yes it was 6 amps, my motorcycle battery is draining and that is where it fails. The hot side produces too much heat and even putting a very large blower fan is not helping at all. Regards.
ReplyDeleteSo, what is the next option?
ReplyDeleteWe have dry summers and we use water -based room coolers, they throw humid cold air. I don't know if that air would be suitable for the project.
ReplyDeleteAnother idea is to use a specially designed coolant radiators, in which finned heat-sink could be attached to the cold side and then used as you have proposed.
Been playing around so many times with this PELTIERS, the logic was pretty simple. It can produce the cold in a tight area, that is, as long as the HOT side is being cooled efficiently. The colder side will remain constant. But when the power has been cut off, the hot side easily transferred to the cold side heating it up very fast, and there goes away the cold air. I also did try the cooling fins, and a radiator type. Still as of now, It never worked the way I planned it.
DeleteStill thinking of the possibility to make it work. We all know how cold intake will likely run the motorcycle smoothly and powerful with just a blip of less gas.
What is your target temperature of cold air in Celsius?
DeleteI have a temperature monitoring the air going into the airbox. When the reading is above 30 degrees, the engine runs roughlyas if you have a passenger but when it reads 26-28 degrees inside like riding at night. well, it runs very smooth, just little twisting of the throttle responses great, so I guess my target is 26 degrees whether riding it on broad daylight and sunshine must stay on that 26. Sounds weird? that is how temperature affects carburated engine. FI do not care they are self adjusting.
DeleteHere is my idea
Deletehttps://www.dropbox.com/s/b4efyx1u33vwixg/Radiator.png?dl=0
You can use a suitable sized radiator with DC fan and use the heatsink to cool down the air going in.