|
| Author |
Message |
g1_teg_lover
|
| Wed Jun 25, 2008 10:20 pm Finally Got It To Work!!! |
|
|
After having some time to work on my scoot, and not my job I finally got the blower idea working. I still have to find my camera to get pics of the setup, but I got good results off of a stock restricted airbox and filter. Only mods that have been done were a 72cc kit and a #90 jet in the carb.
Results of GPS testing Done with A Nokia N91, Using GTx and a bluetooth GPS receiver.
06/25/2008 5:39 PM
0-25 mph: 7.2 s
0-330 ft: 9.9 s
0-330 ft: 27.0 mph
0-10 mph: 0.9 s
0-20 mph: 3.9 s
0-30 mph: 13.2 s
0-60 ft: 2.7 s
0-330 ft: 9.9 s
0-10 mph: 20 ft
0-20 mph: 97 ft
0-30 mph: 483 ft
0-60 ft: 17.1 mph
0-330 ft: 27.0 mph
Peak: 31 mph
0-100 m: 9.9 s
0-100 m: 27.0 mph
0-100 m: 43.5 km/h |
|
|
|
g1_teg_lover
|
| Thu Jun 26, 2008 1:20 am |
|
|
Pics of the setup:
I took these pics after taking the scoot for a good run to check for any issues, so it was kinda dark out.
Routing From Airbox
Stock Airbox and hookup
Routing around motor
Into Blower Shroud
|
|
|
|
thebiggreenie
|
| Thu Jun 26, 2008 12:34 pm |
|
|
| Looks good... what does this blower do? |
|
|
|
timtheenchanteruk
|
| Thu Jun 26, 2008 12:49 pm |
|
|
thebiggreenie wrote: Looks good... what does this blower do?
its the air blower that pushes the air over the cooling fins on an air cooled machine |
|
|
|
1fixitman
|
| Thu Jun 26, 2008 1:08 pm |
|
|
| It is a really good idea if you locate the discharge side of the hot air that comes from the cooling fins and direct it to your airbox for fuel economy purposes. If you want more POWER you need to direct air from the atmosphere directly to your airbox as cold air rather than warmer air from the cooling fins. if you can find a small heat exchanger and a DC fan you can make an electric blower of sorts that forces cooler air to the intake. |
|
|
|
g1_teg_lover
|
| Thu Jun 26, 2008 7:46 pm |
|
|
| actually that's what this does, the air is taken from the blower on the blower side, before it this the cooling fins. There is still plenty of air to cool the motor with this still. The airbox also has the stock restricter installed to limit airflow into the airbox. I'm currently taking more pics of the setup. |
|
|
|
Aerostudent
|
| Thu Jun 26, 2008 10:10 pm |
|
|
How much of an improvement did you see? I know you posted numbers, but that means little to me, because I do not know the previous/stock numbers as well.
Aero |
|
|
|
g1_teg_lover
|
| Thu Jun 26, 2008 10:38 pm |
|
|
well considering that I could only get to maybe 25/30mph without the cover on the airbox, much less a filter, a lot better then stock. I have a video of it running (center-stand, can't really think of a way to video it it action yet.
Some more pics of setup:
Hose Routing
Diaphram, what diaphram?? (Yes it was removed for running porposes)
Have to re-restrict the airbox....too much air blown in
I'll unhook the hose, and GPS it to get more numbers to show. |
|
|
|
g1_teg_lover
|
| Fri Jun 27, 2008 3:44 am |
|
|
Here's the numbers from just a 72cc kit, #90jet, and freeflow. I found them saved on my phone's mem card after going through and getting ready to reformat it.....
05/26/2008 5:04 PM
0-25 mph: 9.3 s
0-330 ft: 11.6 s
0-330 ft: 27.7 mph
0-10 mph: 2.1 s
0-20 mph: 5.3 s
0-30 mph: 15.3 s
0-60 ft: 3.8 s
0-330 ft: 11.6 s
0-1/8 mi: 19.1 s
0-1000 ft: 26.2 s
0-10 mph: 22 ft
0-20 mph: 103 ft
0-30 mph: 491 ft
0-60 ft: 16.7 mph
0-330 ft: 27.7 mph
0-1/8 mi: 30.9 mph
0-1000 ft: 33.2 mph
Peak: 33 mph
0-100 m: 11.5 s
0-100 m: 27.6 mph
0-100 m: 44.4 km/h
And here's the stock numbers
06/26/2008 5:43 PM
0-25 mph: 16.2 s
0-330 ft: 17.3 s
0-330 ft: 24.7 mph
0-10 mph: 8.8 s
0-20 mph: 14.5 s
0-60 ft: 8.5 s
0-330 ft: 17.3 s
0-10 mph: 96 ft
0-20 mph: 269 ft
0-60 ft: 9.4 mph
0-330 ft: 24.7 mph
Peak: 25 mph
0-100 m: 17.3 s
0-100 m: 24.6 mph
0-100 m: 39.6 km/h |
|
|
|
Aerostudent
|
| Fri Jun 27, 2008 5:41 am |
|
|
Nice! Looks lke you shaved a good 2 seconds off your 0-30 over BBkit only, and even more than that over stock. Nice! I may have to try something like this to my 150, but I already have a HP air intake/filter on it, so I would have to set it up a bit differently
Aero |
|
|
|
g1_teg_lover
|
| Fri Jun 27, 2008 3:31 pm |
|
|
I managed to reach a new top speed today, 58mph, however I didn't have my GPS setup to log the data, I was using it for navigation (I gotta love my cellphone....) 58mph @ 10350rpm, I didn't notice I was going that fast until the scooter felt like it was going to fall apart.
I might just go back to the 72cc kit and keep it on a free flow, until I can figure out how to fix two problems.
First, the scooter doesn't seem to like anything under 1/2 throttle. Anything under 1/2 throttle causes the scoot to buck and run as if it's not getting fuel. I'm assuming switching from a CVK to a slide carb will fix that.
Second, the scooter's motor runs more on the hot side then I would like it to. Before the mod, a good 2 hour run in 95F weather would bring the engine temp to about 155F-160F. Now a one hour run has the engine temp over 200F with in 15min. However after 1 hour, the engine temp didn't seem to go higher then 240F, but that's still too hot for this scoot. Only possible fix that I can see for that is to fab up a water cooling setup, similar to a car's. |
|
|
|
Yellow Scooter
|
| Fri Jun 27, 2008 4:04 pm |
|
|
Unless it's a 2stroke, converting it over to watercooled is gonna be an engineering marvel that's gonna run you some serious bucks! If it's even possible.
Did you get a free flow exhaust? If your running it with the stock pipe then that explains why you are running hot. With the bore kit, your motor is pushing almost twice the air it did when it was stock. The stock exhaust is rather restrictive for a stock 49cc let alone a motor 2x larger.
Get an MRP pipe and straight flow muffler, and you'll run much cooler, and your motor and hard work will last a lot longer for it. ;) |
|
|
|
g1_teg_lover
|
| Fri Jun 27, 2008 7:07 pm |
|
|
| no I don't have a freeflow exhaust, however with just the 72cc kit on, the motor never got nearly as hot as now. And where would I find a pipe that fits a 50/80cc scooter, only thing I can find is a 150cc |
|
|
|
Stanislavs1
|
| Fri Jun 27, 2008 7:12 pm |
|
|
| I assume it's getting hot because your mixture is too lean. You should get a bigger jet to counter that. Your power will also increase from that. |
|
|
|
g1_teg_lover
|
| Fri Jun 27, 2008 8:23 pm |
|
|
| actually a #90jet without the needle is plenty of fuel, the issue with heat was the valves were set wrong (I used a english feeler gauge and should have used metric. I set the exhaust to .011 instead of .005. after resetting the valves, the motor seemed to have a better time running under 1/2 throttle and was running cooler. |
|
|
|
| |
