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loud and fast
Discussion at Motorized Bicycle Engine Kit Forum in the High Performance Bicycle Engine Tips forum. Originally Posted by Andyinchville1
HI,
For quiet you can do this.....Large volume muffler means zilch back pressure for all ...  | | 
11-19-2008, 03:00 PM
| | Motorized Bicycle Elite Member | | Join Date: Oct 2008 Location: austin tx
Posts: 163
| |  Re: loud and fast
Quote:
Originally Posted by Andyinchville1  HI,
For quiet you can do this.....Large volume muffler means zilch back pressure for all practical purposes....Quiet too!
Andrew | holy crap, I have never seen anything like that before. That's crazy. |
10-14-2009, 12:30 AM
| | Motorized Bicycle Senior Member | | Join Date: Oct 2009 Location: Winnipeg
Posts: 66
| | Re: loud and fast
I've wonder how it would sound with a glass back cherry bomb it's possible and a perfect fit need a wielder and pipe and it would look sick just mount on the side of the wheel. |
10-14-2009, 09:05 AM
|  | Motorized Bicycle Member | | Join Date: Oct 2009 Location: australia
Posts: 20
| | Re: loud and fast
Quote:
Originally Posted by VENICE BOY I ran my "Bomber" Bike like this!!!
They are really fast & powerful without the baffle!!!!
It won't hurt it running it like that.
The best compromise is to drill a few 3/8" holes in the end of the baffle. (A little more power, a little more noise!) | its all good to do this but the engine will still need back pressure otherwise it will probably seaze, a good way of doing a performance mod would be to rip the guts out of the muffler and drill holes in the end cap, or make a new end cap |
10-14-2009, 09:25 AM
|  | Motorized Bicycle Senior Member | | Join Date: May 2009 Location: East Wenatchee, Wa
Posts: 95
| | Re: loud and fast
The bike will be fine. Gas back pressure isn't much needed it's the back wall to reflect the sonic wave and a front wall to compress it to supercharge the cylinder so ride on man and have fun!  |
10-14-2009, 11:20 AM
|  | Custom Builder / Dealer | | Join Date: Mar 2008 Location: Los Angeles, CA.
Posts: 1,435
| | Re: loud and fast
Quote:
Originally Posted by TorqinDirty a good way of doing a performance mod would be to rip the guts out of the muffler and drill holes in the end cap, or make a new end cap | Isn't that what I said????? |
10-16-2009, 10:48 PM
| | Motorized Bicycle Elite Member | | Join Date: Jun 2009 Location: Toronto, Ontario
Posts: 153
| | Re: loud and fast
im running mine with a gutted pipe. when i first took it out i couldn't believe how much more power it gives, i've had a couple times when taking off from a stop that it would do a little wheelie as i pop the clutch. and the sound too, its got that badass rumble at low rpms and when throttling down, i love it. my engine was too rich even with the needle on the top clip, after i took out the baffle, it was just lean enough, i could probably go a touch leaner but i dont want to risk it. ive been riding it like that since late july and its still going strong. i care more about going fast than going far, if i fry the motor, ill just get another one for a hundred bucks. |
10-17-2009, 08:29 PM
| | Motorized Bicycle Member | | Join Date: Oct 2009 Location: australia
Posts: 20
| | Re: loud and fast
Quote:
Originally Posted by Bikedad1 The bike will be fine. Gas back pressure isn't much needed it's the back wall to reflect the sonic wave and a front wall to compress it to supercharge the cylinder so ride on man and have fun! |
yeah your right about that, but i realalised something. were talking about mass produced, coppied mufflers, there not tuned or anything like that im just saying that anything remotly tuned is going to be better than that. so lets have a new approach, these mufflers arent the best for your engine
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10-28-2009, 01:29 PM
| | Motorized Bicycle Member | | Join Date: Oct 2009 Location: orlando
Posts: 25
| | Re: loud and fast
i goa duel pipe on one of my bikes and made the baffels romoveable so i can make it quiet or loud |
11-02-2009, 11:03 PM
| | Motorized Bicycle Newbie | | Join Date: Oct 2009 Location: socal
Posts: 16
| | Re: loud and fast
Quote:
Originally Posted by Bikeguy Joe It doesn't remove all backpressure. A two stroke will run without a muffler, it's just hard to get good throttle response from off idle to upper midrange.. | is there anyway to get the sound and the speed while still keeping the throttle response?
also if the endcap of the muffler can be taken off is it better to jsut remove the cap and the baffle or should you gut the muffler then drill holes in the cap?
Last edited by xmikex : 11-02-2009 at 11:34 PM.
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11-03-2009, 02:38 AM
|  | Motorized Bicycle Elite Member | | Join Date: Apr 2008 Location: Albuquerque
Posts: 1,086
| | Re: loud and fast
Quote:
Originally Posted by Bikeguy Joe When I removed the baffle from my first engine I could hardly tell any difference when run side by side with a "stock" muffler. | I was looking at one of these stock mufflers The other day. When you removed the baffle do you mean all the internal guts? I want to completely remove all the inside of one thats going on the end of the tuned pipe on my Morini motor. Last repack the cavity with steel Brillo padding for Quieter noise pollution. Just wondering what is termed as the baffle? I am baffled by all the baffling I see inside? If so how did you get the guts out?
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Last edited by goat herder : 11-03-2009 at 02:52 AM.
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