Author Topic: SuperTrapp  (Read 715 times)

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Offline SpeedyCoop

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SuperTrapp
« on: February 13, 2018, 04:55:55 pm »
I have a SuperTrapp muffler not being used. Thinking of putting it on my C14 any thoughts good, bad, or indifferent? I would get a stock mid-pipe so I would have my stock exhaust to fall back on if the SuperTrapp was too loud. 

Offline AmphibSailor

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Re: SuperTrapp
« Reply #1 on: February 13, 2018, 05:04:52 pm »
Sounds interesting.  I had a Supertrapp header on another bike with diffuser disks that could be added or subtracted to tune back pressure. 
09 Concours aka 'The Cruncher:' Corbin Canyon Dual Sport (Laam for longer trips, Laam modded Corbin Modular with Smuggler for mid-length trips), Top Blocks, Penske 8983, Traxxion AK20s, Helibars Horizon ST bars w/Galfer SS +6 cables, MRA Vario Touring Windscreen/Madstad brackets (Copper Dawg sport screen for summer), Area P full system, throttle tamer, Steve's Flash.  

Offline SpeedyCoop

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Re: SuperTrapp
« Reply #2 on: February 13, 2018, 05:44:57 pm »
I have the disc setup like you have in the top picture. How do you know when you have the right amount of discs? The bottom picture would basically make the muffler a straight thru glass-pack (loud?).

Offline AmphibSailor

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Re: SuperTrapp
« Reply #3 on: February 14, 2018, 08:30:23 am »
Had mine setup when the bike was dynotuned?  The number of discs (IIRC) adjusted how much back pressure the engine saw.  Torque and sound were affected.  Pretty good write on the supertrap web site.
From the FAQs section, there:

Q. How do the diffuser discs work?
SuperTrapp is the original tunable muffler. The SuperTrapp exhaust system allows you to adjust, or “fine tune,” the sound level, powerband and performance. SuperTrapp’s exhaust outlet is formed by a precise gap between a series of individual discs. Adding discs increases the size of the exhaust outlet, increases exhaust flow and exhaust tone while reducing backpressure. More discs move the power band up to give you more top-end power, and lean out the carbureted fuel mixture. Removing discs decreases the size of the exhaust outlet, decreases exhaust tone, and exhaust flow while backpressure is increased. Fewer discs tend to increase low-end torque and richen the carbureted fuel mixture. Diffuser discs allow you to compensate for changes in altitude and air temperature without re-jetting or changing your air intake. And, besides reducing noise, our discs function as United States Forest Service-approved spark arrestors (USFS T-102), making them a safer choice for off-road motorcycles and ATVs.


-----------------------------------------------------------------------------------------------------------------------------
Q. How many diffuser discs should I run?
The answer depends on your displacement: disc diameter, power band, and noise level. Fewer discs reduce sound levels, more discs increase sound levels. Fewer discs increase low-end torque and richen the carbureted fuel mixture. More discs increase sound levels, increase top-end power and lean out the carbureted fuel mixture. NOTE: When tuning an exhaust system, start with fewer discs and add. Never start with a lot of discs and subtract. Generally on a stock set up (no engine modifications, and stock carb and air filter), you can start with six to eight discs on dirt bikes and ATVs. On V-twin, metric and cruiser bikes, start with twelve discs. A popular misconception: The more free-flowing an exhaust system is, the more power it will make. This is not true. Some backpressure (2-3 PSI) is necessary to achieve maximum power. This is why it is necessary to use the discs that come with your tunable SuperTrapp exhaust. The number of discs to use will depend on your application, displacement, disc diameter and power band. To assess the performance of any product that affects horsepower and torque, lap times and Dyno- runs are your best indicators. However, since most enthusiasts usually only have a “seat-of-the-pants” Dyno, running condition is the most obvious indicator. Pay attention to the coloration of the discs. Little or no disc coloration indicates a possible lean condition (remove one or two discs). Black or sooty discs are indicative of a rich, or oil burning condition (add one or two discs). Discs that turn a tan or golden color indicate an acceptable balance of fuel mixture and exhaust flow. Reading a spark plug is the quickest way to check if everything in the engine is working as it should. And, it will tell if the SuperTrapp has been tuned properly. A rust-brown spark plug color indicates that the plug is operating smoothly (exhaust is tuned correctly). A whitish look indicates that the burn is too lean (remove one or two discs). A blackish deposit on the plug electrodes (left by oil or fuel traces) indicates that the burn is too rich (add one or two discs).

FAQs

09 Concours aka 'The Cruncher:' Corbin Canyon Dual Sport (Laam for longer trips, Laam modded Corbin Modular with Smuggler for mid-length trips), Top Blocks, Penske 8983, Traxxion AK20s, Helibars Horizon ST bars w/Galfer SS +6 cables, MRA Vario Touring Windscreen/Madstad brackets (Copper Dawg sport screen for summer), Area P full system, throttle tamer, Steve's Flash.  

Offline SpeedyCoop

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Re: SuperTrapp
« Reply #4 on: February 14, 2018, 10:44:44 am »
Thanks for the info. I will be looking for a mid-pipe and give the SuperTrapp a try.

Offline Steve in Sunny Fla

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Re: SuperTrapp
« Reply #5 on: February 14, 2018, 12:25:06 pm »
Wow - that write up -Straight out of the 70's  :-X  Steve
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Offline AmphibSailor

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Re: SuperTrapp
« Reply #6 on: February 14, 2018, 03:32:20 pm »
Wow - that write up -Straight out of the 70's  :-X  Steve

Yup.  The bike I used it on had a carb, ported/polished heads, high torque cam, etc.
09 Concours aka 'The Cruncher:' Corbin Canyon Dual Sport (Laam for longer trips, Laam modded Corbin Modular with Smuggler for mid-length trips), Top Blocks, Penske 8983, Traxxion AK20s, Helibars Horizon ST bars w/Galfer SS +6 cables, MRA Vario Touring Windscreen/Madstad brackets (Copper Dawg sport screen for summer), Area P full system, throttle tamer, Steve's Flash.  

Offline lather

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Re: SuperTrapp
« Reply #7 on: February 14, 2018, 04:32:23 pm »
I had one on my 84 Ninja. Seemed to work well and was not tooo loud

Offline connie_rider

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Re: SuperTrapp
« Reply #8 on: February 14, 2018, 07:14:15 pm »
I had a spare {stock} mid pipe, and a (I forget the brand) slip-on lying around.
I built adapters to make it all fit.
Was definitely do-able.. But it was difficult to do and my version was ugly as heck.

Reason: The stock mid pipe is has an inner and an outer layer, and you have to adapt the slip-on to align to the inner pipe..

Ride safe, Ted

PS: Everyone knows I love to tinker and I'm not saying, don't do it.
      Just offering info.
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Offline connie_rider

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Re: SuperTrapp
« Reply #9 on: February 16, 2018, 02:14:38 am »
Wow, small world.   :-\

Was playing on Ebay and found a (x2) Super-Trapp set up w/ZX-14 headers that should fit a Connie..

https://www.ebay.com/itm/2009-08-11-KAWASAKI-ZX14R-ZX1400-ZX14-NINJA-EXHAUST-HEADERS-PIPES-HEAD-MANIFOLD/332509972838?hash=item4d6b238966:g:ar0AAOSwJRZaTzY1&vxp=mtr

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Offline Colt45

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Re: SuperTrapp
« Reply #10 on: February 19, 2018, 03:12:26 am »
Wow - that write up -Straight out of the 70's  :-X  Steve

Yeah, with cats, the exhaust doesn't do that anymore. 
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