Motorcyclists have always sought the right blend of sound and performance from their motorcycles. With the development of aftermarket exhaust pipes motorcyclists gained horsepower and performance but had less sound. When they removed the baffles they sacrificed performance to gain sound. No one has previously been successful in attaining sound and performance from straight pipe type design aftermarket exhaust pipes. The exhaust enhancer focuses on lessening reversion which increases horsepower, allows for a deeper more appealing sound and helps lessen the throttle hesitation that can develop when baffles are removed. This is the first product that has been able to consistently address the above issues and remedy them.
The present invention relates to an exhaust enhancement device for motorcycle exhaust pipes, and is especially applicable to aftermarket motorcycle exhaust pipes with a straight pipe design and with an inside diameter from 1.875 inch and larger. The exhaust enhancement device, when used with its internal additions, allows motorcyclists to essentially tune the motorcycle to the sound and the power band that they are wanting by selecting one or more internal additions, referred to herein as the ThunderBolt and the Thunder Probe, or a combination of the two, to achieve the desired result. While obtaining the desired enhanced sound and power, the user will have the additional benefit of better throttle response and the rpm's will not drop off as radically between shifts.
Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
The present inventions now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, these inventions may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.
As shown in
One of the baffling/anti-reversion pieces is the ThunderBolt 15 (see
The other baffling/anti-reversion piece is the Thunder Probe 16 (see
A baffling/anti-reversion piece 15 or 16 is mounted by threading the threaded shaft of the piece into one of the weld nuts 13 on the inside of the cylindrical body and is held tightly in place by tightening a lock nut 18 against the weld nut 13.
The baffling/anti-reversion pieces 15, 16 located in the enhancer 10 act to create a vortex which allows the exhaust gases to exit the pipe more efficiently and helps lessen reversion which is what lessens horsepower in a motorcycle engine, due to the diluting of the charge entering the combustion chamber which is caused by valve overlap. By reducing the amount of reversion that occurs, the rider will experience improved throttle response, a deeper sound, more midrange power, and more torque than with no baffling device in the exhaust pipe. Dyno testing has shown that the enhancer 10 with the ThunderBolt 15 installed can produce 12 midrange horsepower when installed in an exhaust pipe that had not had any baffling device previously installed. When installed in place of a stock baffle using the enhancer with a ThunderBolt installed it will produce the same horsepower and torque as the baffle.
To install the enhancer 10, the existing baffles in the exhaust pipe 20 must be removed. For safety they should be removed when the pipes are cool. Using an Alan wrench, remove the button head bolt holding the baffle in place and pull the baffle out the exit end of the pipe. Once out, the enhancer 10 can be slid in the pipe and located using the existing hole in the exhaust pipe 20. Once located, insert the new button head bolt 17 (see
Using the ThunderBolts 15 and Thunder Probes 16 in various combinations or singly, as shown in
If the enhancer is installed on a motorcycle with fuel injection, the bike should be run for a few minutes to allow it to read and readjust to the new exhaust flow.
Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these inventions pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the inventions are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
This application is a continuation-in-part of U.S. application Ser. No. 10/408,860 filed Apr. 7, 2003, which, in turn, claims domestic priority from U.S. Provisional Application No. 60/387,005 filed Jun. 6, 2002.
Number | Date | Country | |
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60387005 | Jun 2002 | US |
Number | Date | Country | |
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Parent | 10408860 | Apr 2003 | US |
Child | 11005655 | Dec 2004 | US |