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Post by sk8rman412005 on May 14, 2007 21:56:40 GMT -5
has anyone here fabricated their own cooled air intake? Just curious as to see if anyone has had sucess or failure and how it works out.
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Post by earlwb on May 18, 2007 16:31:40 GMT -5
Do you mean an air intake that has some sort of a cooler or chiller (maybe ram effect) for the air coming in, in order to make the air more dense?
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Post by ryan_ott on May 18, 2007 20:19:13 GMT -5
Go to your home improvement store (Homedepot, Lowes, etc) go to the plumbing section that is your best friend. Any kind of intake can be made for just pennys.
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Post by sk8rman412005 on May 23, 2007 21:51:05 GMT -5
earl if you look at the roketa bermuda i was going to hook tubing up run it under the body and through a condenser and air filter and replace my air box upjet my carb and tune it.
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Post by earlwb on May 24, 2007 11:24:54 GMT -5
Sounds interesting and cool too, post some pics.
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Post by demon on May 24, 2007 18:14:57 GMT -5
i am actually working on a ram air kit atm... its still in the design phase. i am looking at pulling air from underneath but water is an issue, the other idea (looses the ram air) is cold air induction. pulling air from outside the engine compartment from the plastic cover near your feet shown below  The only conquest i'd need to do here is the intake to the carb is in the rear.. thats long travel through a warm engine compartment and a 180 deg bend... not looking too promising  I though about some side intakes as well. May not be astheticaly pleasing though... ho hum...  A wild thought is something like a verlosity stack, where the intake is up front and as it funnels to the carb it drops in diameter drops a few %. Same mass of air moving through a smaller space yeilds increased verlocity... im not a rocket scientist so i really have no idea if it or any of my projects would work or improve power.. Feel free to encourage or shoot holes in it for me  |
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Post by earlwb on May 25, 2007 21:09:51 GMT -5
I was thinking about getting air from the front of the scoot above the front wheel and fender, where there would be the most air pressure as you ride along. Sort of like the old muscle cars in the past with the big reverse air scoops, designed to take advantage of the pressure increase near the windsheild.
Humm on the wild imaginary side, I had a crazy thought about a gas engine powered leaf blower connected to the carb. That might be interesting. You might be able to link up both throttles too.
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Post by airnerd on May 25, 2007 22:50:23 GMT -5
Earl...i fly R/C air planes and they are electric...we have duckted fans...would be fairly easy to rig it so you could indeed have throtle curve. 12- 15 volts is ideal for the brushless motors we use. www.hobby-lobby.com/ductfan.htmwould that be a realistic mod??? i could fabricate this posibly...like a supercharger! |
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Post by simsim44 on May 26, 2007 14:25:18 GMT -5
airnerd, what kind of cfm's do these produce, my friends and I have been looking for alternatives for the IHI RHB-3 turbo, as the set ups for these are in the 1200 dollar range, when all said and done. I would be concerned with the set screw coming loose, there is allways locktite.
demon, as for the water concern how about a pre filter , these seperate water from entering the intake, so it is written, a lot of my bud's use'em, and being that far from the head I think you would be ok.
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Post by demon on May 26, 2007 14:36:57 GMT -5
sim
thats not a bad idea.. just dont want to reduce airflow since it already has a bit of traveling to do..
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Post by simsim44 on May 26, 2007 15:37:57 GMT -5
the prefilters are pretty coarse., K&N,Uni, thats what the guy's are running, we run in the dirt & mud, I hear they work well, my filter is in a box, so I don't run one at the moment, but looking to get out of the box for better flow
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Post by airnerd on May 26, 2007 16:47:58 GMT -5
simsim...they can fly a two pound jet at 100 mph no prob..they have different sizes.
But pounds of thrust availiable easy.
Very lightweight.
goto you tube and type in EDF and or electric ducted fan jet
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Post by airnerd on May 26, 2007 16:52:06 GMT -5
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Post by surfbum96818 on Jun 13, 2007 13:09:13 GMT -5
I removed my stock air box used the rubber hose and ran it to the outside of the body by turning it. I then had to find a a filter to fit the three or four inch end ( I didn't want to cut it incase I needed to return it to stock. I bought a thirty dollar filter from an autoparts store ( the kind guys put on thier tuner cars ) and held it all in place with a bunji cord It was all chromed out LOOKED CRAZY!!!! and worked well THEN I tried cutting the hose and running a smaller filter just under the body work. DIDN'T work I didn't have time to adjust my fuel air mix ( I think that is the prob ) so I have been running without a filter few a week! I am going to work on it this weekend!
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Post by Tony on Jun 15, 2007 12:42:15 GMT -5
I have a roketa cayman 150. I took off my air box and cut off the front part of the air box where the hoses connect from the valve cover. Put it back on so it can vent then bolted it back on the bike it looks factory, Then I bought a aftermarket air filter went down to our local muffler shop and had them bend a 2" piece of pipe at the right angle then used the rubber connection from the old air box connected it to the air filter used a small piece of metal connected it to the frame then the pipe to hold it in place. Its amazing how much more power I have now better low end great mid range and my top end not much more but I get their alot quicker ![]() i206.photobucket.com/albums/bb165/rascboise/P6150282. |
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Post by earlwb on Jun 20, 2007 16:06:37 GMT -5
airnerd, yeah I have thought about the electric ducted fan units. I used to fly the gas engined versions for years. Lots of fun and little engines turning incredible RPMs.
But one problem is whether the electic motor would be able to run for a long period of time without overheating and buring up on you. Electric RC airplanes usually have a limited run time because of the battery, so overheating the motor isn't as big a problem as you have to stop and recharge or change out the battery to go again.
I have a couple of .020 sized ducted fan uints I was going to use on something but I never got around to it. Even that small unit developed a lot of wind blowing out the back.
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Post by Aerostudent on Jul 6, 2007 2:09:52 GMT -5
"A wild thought is something like a verlosity stack, where the intake is up front and as it funnels to the carb it drops in diameter drops a few %. Same mass of air moving through a smaller space yeilds increased verlocity... im not a rocket scientist so i really have no idea if it or any of my projects would work or improve power.."
I think that might work. You could even (depending on type of scoot) put the intake portion somewhere that looks ok and that has a high wind velocity already for a sort of mini-ram effect (might have to up-jet, due to higher-density air). Check areas like where the exhaust pipe is (only other side, less heat) , maybe the floor board on the again non-exhaust side, or even up behind the seat/by the trunk area. Check the mentioned areas for high windflow, and chose whichever pleases you.
As for the Supercharger, if it doesn't overheat, that would be so awesome!!! A 10 sec quarter mile on a GY6 scooter, woot, woot!! Ok, maybe not, but still cool nontheless.
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Post by talont1978 on Jul 7, 2007 14:09:28 GMT -5
Just posted some pics of my new cold air system in the 150cc forum. It's in the Strada rx150i cronical and rewiew thread.
Not a ram air system, just getting cold air to the filter which is directly on the carb.
Take a look, Tell me what you think.
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Post by Andi on Jul 7, 2007 19:33:04 GMT -5
Just posted some pics of my new cold air system in the 150cc forum. It's in the Strada rx150i cronical and rewiew thread. Not a ram air system, just getting cold air to the filter which is directly on the carb. Take a look, Tell me what you think. Link please. Andi |
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Post by Aerostudent on Jul 9, 2007 1:38:27 GMT -5
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