|
|
Post by geh3333 on Jul 29, 2013 14:28:27 GMT -5
well first off my scoot fell over while warming up the other day , funny funny i know. but myhomade scoop broke off taking some of the shroud with it. i didnt hav time to fix the scoop but i did piece the shroud back together with superglue and yes ducktape again lol. the fan was workink good but my temp was about 30 to 40 degrees higher without the scoop !!! . so today i removed the ductape and used bondo to repai the shroud and then i reinstalled the scoop . its blowing double the air out of the bottom with the scoop on and the suction from the scoop is great. as iwas messin with the shroud i noticed that the left side of the shroud was pretty much right against the cylynder and head fins which dosent leave much if anny room for the air to circulate around it . the air more or less flows under and oit the bottom of the shroud leaving plenty of hot air just sitting on the top of the cylinder and head. so on the oposite side of the cooling fan on the shroud i installed a 3 and a half inch 12 volt fan . i drilled holes in the shroud right against the cylinder an head fins before i installed the fan . the fan sucks air out from around the cylinder and head fins .ill be testing the temp difference tommorrow morn and ill post the results. i hooked the fan to a switch so i can manually turn it on and off.
|
|
New Rider
Currently Offline
Posts: 37
Likes: 0
Joined: Apr 18, 2013 3:58:22 GMT -5
|
Post by robrun on Jul 29, 2013 19:38:50 GMT -5
post pics bruddah!
|
|
|
|
Post by jerseyboy on Jul 29, 2013 20:52:48 GMT -5
Love to see tinkering like this,,keep it up bro!!
|
|
|
|
Post by oldchopperguy on Jul 30, 2013 0:13:45 GMT -5
Geh3333,
You may be onto something here. Lots of riders "dis" these scoop mods, but like you, I found a scoop lowered my operating temp (oil-temp check) considerably. I found this to be ESPECIALLY true in temps above 100 degrees. And we get PLENTY of that heat here in Texas... Racing scoots use them, so they MUST be of value. Racers don't hang ANYTHING on a competition ride unless it works. While giving my own scoot a major "refreshing" a few months back, I altered my own scoop to place it FARTHER out into the wind, and past the exhaust and the vortex from the plastics that truly do put a "hole" in the air, RIGHT WHERE THE FAN TAKES IN AIR. I replaced my fan-cover with a chrome one, and took pix of the extension and scoop on the original black one just for reference. Please see pix below... 20mb image hosting image upload no limit uploading pictures image url uploadSimple mods to the cooling fan setup really DO make a difference, at least at speed, in HOT weather. I'm seeing a slight improvement here with the scoop extended, even standing still. This leads me to believe it's pulling air from "clean air" rather than from directly above the exhaust header where the air is already red-hot. I did buy my scoop (5-years ago!) but made the extension from a PVC coupler, covered with chrome wrap and painted black inside. I made the purple stand-offs (couldn't find RED ones... LOL) from a knitting-needle to prevent cracking the fan cover from stress, (and to hide the long screws...) These aftermarket chrome fan-shrouds are NOT the durable soft-plastic like the black factory ones. They are BRITTLE styrene, so they require more careful handling... Please do keep us posted on how your mod works! Ride safe, ride cool!Leo in Texas
|
|
|
|
Post by geh3333 on Jul 30, 2013 3:17:25 GMT -5
.ill post some pics whdn i get back from walmart.
|
|
|
|
Post by geh3333 on Jul 30, 2013 6:23:28 GMT -5
some results : it was 55 degrees saturday morn, and i went on a 30 mile round trip. i kept the rpms between 7 and 8000 most of th way . o didnt have the scoop on and my oil temp went up to aboit 265 degrees. normal with scoop and withoit the electric fan it would run between 200 and 220 degrees at those rpms. this morn it was 57 degrees for the first 15 miles i ran the scoot hard aroind 8000 rpms with the scoop and new electric fan on. the oil temp mever went over200 degrees
on the way back i kept the rpms between 6000 and 7000 rpms and the temp stayed near 185 degrees . i estimate the electric fan cooling an extra 10 to 15 degrees. the fan only draws 0.25 amps so no worries about killing the battery. im gonn take a few pics and post them within the hr.
|
|
|
|
Post by geh3333 on Jul 30, 2013 7:19:00 GMT -5
|
|
|
|
Post by geh3333 on Jul 30, 2013 7:21:07 GMT -5
the fan is probbly not a good idea if you ride in the rain.
|
|
|
|
Post by geh3333 on Jul 30, 2013 7:30:45 GMT -5
sounds crazy but with the scoop and fan there is 65 degree difference !
|
|
|
|
Post by scooterelements on Jul 30, 2013 7:41:49 GMT -5
Geh3333,
You may be onto something here. Lots of riders "dis" these scoop mods, but like you, I found a scoop lowered my operating temp (oil-temp check) considerably. I found this to be ESPECIALLY true in temps above 100 degrees. And we get PLENTY of that heat here in Texas... Racing scoots use them, so they MUST be of value. Racers don't hang ANYTHING on a competition ride unless it works. While giving my own scoot a major "refreshing" a few months back, I altered my own scoop to place it FARTHER out into the wind, and past the exhaust and the vortex from the plastics that truly do put a "hole" in the air, RIGHT WHERE THE FAN TAKES IN AIR. I replaced my fan-cover with a chrome one, and took pix of the extension and scoop on the original black one just for reference. Please see pix below...20mb image hostingimage upload no limituploading picturesimage url uploadSimple mods to the cooling fan setup really DO make a difference, at least at speed, in HOT weather. I'm seeing a slight improvement here with the scoop extended, even standing still. This leads me to believe it's pulling air from "clean air" rather than from directly above the exhaust header where the air is already red-hot. I did buy my scoop (5-years ago!) but made the extension from a PVC coupler, covered with chrome wrap and painted black inside. I made the purple stand-offs (couldn't find RED ones... LOL) from a knitting-needle to prevent cracking the fan cover from stress, (and to hide the long screws...) These aftermarket chrome fan-shrouds are NOT the durable soft-plastic like the black factory ones. They are BRITTLE styrene, so they require more careful handling... Please do keep us posted on how your mod works! Ride safe, ride cool!Leo in Texas That is something i would be very very very interested in selling. Looks awesome! |
|
Sophomore Rider
Currently Offline
Posts: 111
Likes: 1
Joined: Jul 20, 2013 15:21:16 GMT -5
|
Post by paulgendek on Jul 30, 2013 9:33:05 GMT -5
I would buy it...
|
|
|
|
Post by jerseyboy on Jul 30, 2013 10:37:23 GMT -5
[replyingto=paulgendek]paulgendek[/replyingto]So would I...
|
|
|
|
Post by oldchopperguy on Jul 30, 2013 13:40:52 GMT -5
Whew, I guess I started something here...I wrote Jerseyboy about it, as I'm not only getting OLD, tired and the hand-eye coordination is going south, but I'm in the middle of fixing my house from storm damage so the housing code Nazis won't throw me into the street... LO not so L... So my free time is about zero for a while. If you look closely at my pix, you can see it's not very difficult to make your own. No rocket-science here... I already had the scoop on for five years, so all I had to make was the extension. I used a PVC female-to-female coupler rather than PVC pipe, since it was slightly larger and fit the scoop and fan-cover better than the pipe would have. I cut it to length and beveled the edges to self-center in the scoop and cover. I cut LONG stainless screws to length, and tapered the ends to make them self-tapping. The standoffs made from a knitting needle may not be absolutely necessary. I made them to allow the screws to be tightened snug without stress-cracking the fragile scoop tabs, or the fragile hard-styrene chrome replacement fan cover. I guess I have about $15 in the scoop, $5 in the PVC coupler, $2 in screws, $2 in knitting needles and a couple of bucks in the "O" rings. You guys with a shop could have an apprentice making these in the back room instead of watching porn... LOL! You probably couldn't sell them for too much more than they cost to make, but who knows? You're certainly free to use my design... NO patents here! You could also cut the cost by making the entire setup from PVC pieces and painting them black, or other finish. My experience has shown the device does work, but my area has BRUTAL-hot weather. I don't see the major benefit when the temps get below  or so. But when it gets HOT, the oil stays a lot cooler, and the setup LOOKS cool, too. I truly wish I could make some of these for you, but age and time constraints prevent that. Check out my pix, and you'll find you can make your own version pretty easily... Sincerely, Leo in Texas PS: Sounds like the electric fan mod may be something good, too. Keeping the oil cool adds a LOT of life to it, and adds a safety measure to the engine parts.
|
|
|
|
Post by oldchopperguy on Jul 30, 2013 13:53:54 GMT -5
Doggone if you didn't come up with something here! NICE WORK!You may want to order up a replacement fan-cover too... The plastic these are made from doesn't seem to be conducive to Bondo (or anything else) sticking to it for the long-haul. You can actually get the chrome ones cheaper than the factory-black ones, BUT... The chrome ones are BRITTLE hard plastic, NOT the flexible plastic like the black ones. So they require careful handling. Once again, NICE WORK! And good thinking!Leo in Texas
|
|
|
|
Post by scoots on Jul 30, 2013 14:17:59 GMT -5
sweet i was thinking about haing 2 fans?
inn and out?
|
|
main jet
or so. But when it gets HOT, the oil stays a lot cooler, and the setup LOOKS cool, too.
