Sophomore Rider
Currently Offline
Posts: 121
Likes: 1
Joined: Jun 1, 2013 7:55:05 GMT -5
|
Post by Z0M8I3 on Jun 20, 2013 7:43:14 GMT -5
Does anyone have a video of one of these running on their personal 4t? I'm thinking of getting one and hearing that it's really quiet is what I'm looking for!  Thanks -Tim |
|
Sophomore Rider
Currently Offline
Use the force, if it breaks,it nedded to be fixed anyway!
Posts: 124
Likes: 0
Joined: May 16, 2013 22:26:39 GMT -5
|
Post by Tripper on Jun 20, 2013 7:50:49 GMT -5
If you find one, put up a link, I think I bought the last one on the web!
Ill try to put up a vid tomoro...
|
|
Sophomore Rider
Currently Offline
Posts: 121
Likes: 1
Joined: Jun 1, 2013 7:55:05 GMT -5
|
Post by Z0M8I3 on Jun 20, 2013 8:13:02 GMT -5
|
|
|
|
Post by oldchopperguy on Jun 20, 2013 12:11:53 GMT -5
The sound on a video is not going to be too good a reference. Something always gets lost between the outdoors sound and the speakers on your PC... LOL!
I can pretty well describe how it sounds on my Xingyue 150. At idle, and up to about 4K rpm it sounds exactly like the original factory muffler, only slightly quieter. From mid-range, to WOT it still sounds similar to the factory muffler, but slightly louder. At high rpm, it has a little more "crack" to it, but certainly not objectionable. I can still hear my UNI-sock air-filter over the exhaust note.
Across the entire rpm band, it sounds very much "factory" with maybe a hint of "high-performance" at WOT. It won't bother the neighbors, either starting up, or coming home late at night for sure! It's hard to believe a totally straight-through system without a single baffle can offer wide-open exhaust performance with quiet, factory-muffler sound level, but it seems to be the case.
If you find it's STILL louder than you want, I'll bet the little "stinger" glass-pack after-muffler could be replaced with a stationary-engine (Briggs & Stratton type) of small muffler without robbing too much performance. That should make it "whisper-quiet" at ANY speed.
Hope this may help...
Leo (ridin' sneaky-quiet) in Texas
|
|
|
|
Post by oldchopperguy on Jun 20, 2013 12:46:39 GMT -5
Leo, so when you bent the straps and put them on, you couldn't use a a socket wrench could you? The headder is in the way. I guess you probably used a crows foot or the like? My individual scooter used 2 clamps, bolted at the bottom, to two mounting "studs" with nuts welded in the ends. I simply cut a piece of 1/4" thick aluminum bar-stock, drilled to fit the original mounting-stubs on the swing-arm, and, to fit where the clamps best-fit the tapered expansion chamber. Duplicating the original mounting system allowed clear access to the mounting nuts and bolts with sockets. If yours has the mounts hidden behind the can, you'll have to use a crow's-foot or something similar.That also allowed me to adjust the angle of the exhaust (you can see the mount-holes are drilled "off-center") to angle the pipe right. It's a whole lot easier to do, than to describe... LOL!Here's a picture from my original post, showing the pipe and simple mount... This angle may make it a little easier to visualize... The mounting-bar looks black, because I didn't like the look of the big aluminum bar, so I covered it with automotive "blackout-tape". I was too lazy to take it all apart and paint it. Shame on me! I found that any "off-kilter" of the pipe could be adjusted by simply adding washers behind the mount to tilt it toward, or away from the scooter. Your original mounting may be different from mine. If so, you may have to rig up some stubs, or extensions, whatever to offer a solid base to attach to. Actually, you're just about there already, with your strap-metal strips. You could probably even use the original muffler rubber insulators with those, to damp vibration. Hope this helps you out...Leo PS: I just looked at your photo, and I can't see where your original mounts fastened to the scoot. I'm not familiar with the single-side suspension like yours, but your original muffler must have mounted to something on the swing-arm. I'd try to make the simplest possible metal piece to re-connect your new system to the old mounting tabs, stubs, holes, etc. whatever the factory provided. You might even be able to use large "U-bolts" around the can, with the flat-bars of the U-bolts then bolted to the factory mounting provisions... Just a thought. |
|
Sophomore Rider
Currently Offline
Posts: 121
Likes: 1
Joined: Jun 1, 2013 7:55:05 GMT -5
|
Post by Z0M8I3 on Jun 20, 2013 13:23:25 GMT -5
The sound on a video is not going to be too good a reference. Something always gets lost between the outdoors sound and the speakers on your PC... LOL! I can pretty well describe how it sounds on my Xingyue 150. At idle, and up to about 4K rpm it sounds exactly like the original factory muffler, only slightly quieter. From mid-range, to WOT it still sounds similar to the factory muffler, but slightly louder. At high rpm, it has a little more "crack" to it, but certainly not objectionable. I can still hear my UNI-sock air-filter over the exhaust note. Across the entire rpm band, it sounds very much "factory" with maybe a hint of "high-performance" at WOT. It won't bother the neighbors, either starting up, or coming home late at night for sure! It's hard to believe a totally straight-through system without a single baffle can offer wide-open exhaust performance with quiet, factory-muffler sound level, but it seems to be the case. If you find it's STILL louder than you want, I'll bet the little "stinger" glass-pack after-muffler could be replaced with a stationary-engine (Briggs & Stratton type) of small muffler without robbing too much performance. That should make it "whisper-quiet" at ANY speed.Hope this may help...Leo (ridin' sneaky-quiet) in Texas Thank you very much for the info, Now I know I'm going to pick one up soon |
|
|
|
Post by oldchopperguy on Jun 21, 2013 0:15:26 GMT -5
[/quote] Thank you very much for the info, Now I know I'm going to pick one up soon  [/quote] You're most welcome! When I come across something good, I'm always happy to share with the sites! I truly hope yours works out as well as mine has! There is at least one other rider here using one, and his also is working well. Ride safe!Leo |
|
Sophomore Rider
Currently Offline
Use the force, if it breaks,it nedded to be fixed anyway!
Posts: 124
Likes: 0
Joined: May 16, 2013 22:26:39 GMT -5
|
Post by Tripper on Jun 21, 2013 8:52:39 GMT -5
That exhaust in the picture is the exhaust on my bike, doesn't just look like it, that's THE exhaust! Idk why its still on their site. If you order it and they send you a brand new one, me and Eagle are going to have a lil chat!  I want you to call em or just try to order it. If they send you a new one, em and |
|
Sophomore Rider
Currently Offline
Use the force, if it breaks,it nedded to be fixed anyway!
Posts: 124
Likes: 0
Joined: May 16, 2013 22:26:39 GMT -5
|
Post by Tripper on Jun 21, 2013 8:59:39 GMT -5
Thanks Leo! I didn't think about U bolts. I may could bend my hardwear and use a crows foot. That's for a nother day tho. The ghetto straps are doing the job atm tho.
|
|
|
|
Post by oldchopperguy on Jun 21, 2013 13:54:44 GMT -5
150cc or 50cc?
With several riders showing interest in adapting these systems to 4-strokes, it should be mentioned that exhausts made for the 50's will NOT just bolt onto a 150. The header flanges are narrower between stud-holes, and the angle of the flange is wrong for the 150 heads.
To put a 50cc system on a 150, you'll need to cut the head-pipe off the 50cc exhaust and graft the remainder onto a header that fits your 150. Fortunately, that isn't very hard, AND it gives you the opportunity to replace the stock under-sized 150 header with a full 1-inch inside-diameter header.
If you opt to keep the factory 150 header, I would take a ball-grinder in a drill, and chamfer the inside edge of the header to ease as much as possible, the exhaust transition from the 1-inch exhaust-port into the 3/4-inch I.D. header. The WAY undersized headers on these is a truly bad idea. And a 1" I.D. header really wakes these engines up.
Just mentioning this to remind folks that some minor hacking is needed to get 50cc exhaust mated to a 150cc engine.
There ARE systems like this, made for the 150's but they are fairly rare. I have one made for the Vento Phantom 150, but the header-flange is at a DIFFERENT angle than my head, and it won't bolt up. It would angle the exhaust a foot outside where it belongs... It's also BIG, VERY HEAVY and has mounts welded all over which don't come even close to any mounting points on my Xingyue.
Considering the fact that some GY6 150's have different angles to their exhaust ports, and factory exhaust systems seldom will bolt onto any given scooter anyway... It's just a whole lot easier to find a lightweight, trim, 50cc system, and make a simple header and mounting modification.
Leo (cleanin' off the old disc-grinder) in Texas
|
|
