Archive for the 'Engines' Category



Exclusive. S&S Launching the KN-Kone Engine. Vintage Vibe With Modern Muscle And Reliability.

In July 2007, I was the first to  inform you of the acquisition by S&S Cycle of Flathead Power, a Swedish Company that moved to Louisiana to service classic/vintage engine lines and components dating back to 1936. It was a perfect complement for the S&S brand and products line. Since 2008 the acquisition of Flathead Power’s […]

Glad That You Asked. Why Do motorcycles Backfire?

A backfire is caused by the buildup of un-burned gasoline in the exhaust header and pipe system. Once the gas has built up to the right mixture with air, it explodes, making a loud bang. A visible flame may momentarily shoot out of the exhaust pipe. It can happen when you start your motorcycle, for […]

Formula One Engine Break-In. Music To My Ears.

If you didn’t know, I am a big Formula One fan. Watch to the end this video of an F1 engine break-in. It’s music to my ears, especially at 18,000 rpm (idle at 6000 rpm). Several times had the opportunity to be a spectator of the F1 Monte-Carlo Grand Prix (it was last weekend). What […]

Blue Face Engine Oil Pressure Check

Monitor your engine vital sign with the new Digital Oil Pressure Gauge from Harley-Davidson Genuine Motor Accessories. Gauge mounts with a bracket to the rear-cylinder rocker box cover, and reads oil pressure in PSI or BAR with a brilliant blue digital display that appears through mirror-coated glass when the ignition is on. The read-out is […]

Glad That You Asked. Why Do Harley Davidson Motorcycle Shake More Than Other Brands.

Harley-Davidson uses a common crank pin, meaning that both pistons travel up and down together at the same time. So all the weight is being thrown back and forth causing vibrations and the very particular “proprietary” sound or rumble. The Twin Cam engine has a chain driven counter balancer creating less vibrations. As far as […]

Custom Motorcycle Frame Builder And Beyond.

You know that a motorcycle frame is the first critical part on which to never sacrifice quality and integrity. Better work with experts who work on frame tables, use professional jigs, know about tubing bends, cross members and braces, and have the welding know-how to get a straight frame with a safe geometry. After that, […]

Motorcycle Parts Website

New 2010 Zippers Performance Digital Catalog

From street legal to race only, from high power engines to user friendly Auto Tune Systems, from EFI Performance Components to Air Cleaners, and for 29 years Zippers Performance (also under the ThunderMax brand name) has been on the cutting edge of improving the performance of Harley-Davidson® motorcycles. Not many companies in our industry carry […]

SS Trike Now In Production With S&S Cycle X-Wedge Engine

All year 2010 SS Trikes currently in production and next year models are now running the EPA certified 117″ X-Wedge engine rom S&S Cycles. Engine is coupled with an automatic 2-speed with lock up torque converter 2-speed automatic transmission.

A Pinup For Every Biker

Metric and American bikes customizerJohn “Baron” Vaughan-Chaldy just launched an air cleaner cover bringing to life pinup model Dani Doll. The exceptional photo quality imagery is achieved using an amazing new powder coat technology. This beautiful two-piece cover is wrapped in a billet aluminum ring, fits the original Big Air Kit from Baron Custom Accessories available […]

Brickyard Killer. A 1800 CC Knucklehead Ready To Race Bonneville.

Started 3 years ago and still unfinished business (until it is raced) at the time of this writing, this custom motorcycle may be in Bonneville in September to prove to the world that a 1800 cc Knucklehead fitted with a customized M45 compressor can beat a land speed record. The story of this bike began […]

Glad That You Asked. What Does CC Mean For A Motorcycle Engine?

CC or cubic centimeters refers to engine capacity. Specifically it refers to the amount of air/fuel mixture able to fit into the cylinders (where combustion occurs) at full expansion. 1 cc is equivalent to 1 gram of water aka 1 ml. An example: 1340 cc engine means the cylinders with pistons at full expansion can […]

Harley-Davidson Touring Models Are Hot. Too Hot.

One day, riding a Harley FL to test his company 7-speed transmission Bert Baker noticed how hot it was running, especially in traffic. Then he found out that the 4-quart oil capacity was unchanged on touring models since 1993 at a time when the bikes were equipped with only a 80 cubic inch motor. Taking […]

ThunderMax® TBW Now Available For All 2008-2010 Harley-Davidson Touring Models

It’s an industry first from Thundermax. The only stand-alone Performance EFI Engine Management System developed specifically to meet the tuning needs of Throttle-By-Wire H-D® motorcycle owners. Thanks to the new ThunderMax® with AutoTune for Throttle-by-Wire Bikes, immediate benefits like quicker throttle response, increased power and cooler operating temperatures are now available for all Harley-Davidson models […]

I Bet You Never Changed Your Motorcycle Engine Oil.

I mean 100% of your engine oil. We all change our oil by draining and refilling the oil tank and change the oil filter. But we never get 100% of the oil out of the engine. We pretend like it’s an insignificant amount or it’s not even there. Yet there is more than 24oz. left […]

A New Motorcycle Taking Shape. The Confederate C3, X132 Hellcat.

Today at the New York International Auto Show Confederate Motors is announcing  the launch of the new C3, X132 Hellcat.Confederate Motors state that the new C3 X 132  will be the lightest, fastest, toughest, smoothest, most beautiful Hellcat ever produced. The company is already selling a 1st version of the Hellcat and 2 other models, […]

Engine, Transmission And Primary Drive Oil Change. Drip, Drip, Drip No More.

It’s ok to do your oil changes in the garage, but the lady in your life hates that you mess up the garage floor. Here comes Harley saving your personal life with 2 new funnels each specifically shaped to make it easier and more convenient to service your motorcycle without dripping oil all over the […]

New Wimmer Ultra Sucker Air Cleaner

Wimmer Custom Cycle specialty is intakes and this “Ultra Sucker” air cleaner is the latest addition. It is designed to work with all American V-Twin motors, both with carburetors and fuel injection systems including DBW. Wimmer states that it provides better airflow, so increasing engine performance. CNC machined in the US and offered either in […]

Vintage Air Cleaners Breathing A New Life

When you have been working in the motorcycle business during 40 years as a painter, certified mechanic, parts designer, custom builder, Harley-Davidson dealer and more, you have seen the best and the worst of everything. So, you know what works or not. And when you look at what has worked before you can’t avoid to […]

Nostalgia Velocity Stack

Engines are bigger and performance motors require a lot of air flow to create serious power. The purpose of a velocity stack is to increase it into the throttle body/ carb’s throat for optimized fuel delivery. Roland Sands state that his Nostalgia Velocity Stack even smooths this air flow. CNC-Machined From Billet Aluminum  with a […]

Daytona Bike Week. Save Fuel. Thundermax AutoTune Installation.

During large biker events, some big names of the industry will do your product installation. Your opportunity to save a lot of money, time and in this case…fuel when riding your way back home. If you go or are already in Daytona for Bike week, and if your bike is a 2001-2010 Harley Big Twin, […]

S&S Cycle X-Wedge Powered Custom Harley-Davidson FXR

All part manufacturers will tell you that custom bikes sell their parts. And on the show tour, when visiting a booth people will always stop first to check the custom bikes even before looking at the parts. And it’s true even for the most well known after-market manufacturers like engine maker S&S Cycle.

Paughco New Solid Brass Harley-Davidson Panhead Engine Covers

You hear it over and over. Black is the new Chrome. And now Brass is the new Black… So Paughco is introducing solid brass Panhead rocker boxes to be an exact bolt-on replacement for the Harley-Davidson originals. They are manufactured from start to finish at  Paughco  facility in Carson City, NV. They use the stock […]

Bennett’s Performance Celebrates Its 10-Year Anniversary

I am not going to post about all anniversaries in the industry, but the guys at Bennett’s Performance deserve a plug. The reason? Well,  in 10 years the small repair shop has turned into one of the top Harley-Davidson performance shops in the country. Beginning in 2001 Bennett’s performance was put in the national spotlight […]

First Run For The New Ilmor Viper Motorcycle 152″ V-Twin Engine

Ilmor announced that they have successfully run the first prototype Ilmor Viper Motorcycle Company engine on the dyno ahead of schedule and are already seeing promising results. Ilmor have been working on the design and development of the updated Viper Motorcycle 152 cubic inch V-Twin engine since October 2009, as part of the manufacturing agreement […]

1/8 Scale Harley Knucklehead Engine. Complete Running Model Coming soon…

His name is Jerry Kieffer. He is not a professional machinist, but a retired field representative for a Wisconsin power company who turned his home shop into the finest and smallest examples of model engineering to be found anywhere in the world. He has been building a number of incredible projects, including two miniature Harley […]

Desktop V-Twin Engine

A V-Twin engine running on your desk? Why not. Sure to impress your visitors at the office. No risk to attract the attention of EPA or CARB. This one runs using butane and a full load of it will make it run during 10 minutes during which time I promise you will not be able […]



Cyril Huze