Feeds:
Posts
Comments

Posts Tagged ‘Softail Springer’

Twin Cam 96

Twin Cam 96

UPDATED: April 24, 2017Added a tab “Engine History” on the blog home page with updated V-Twin engine history including the Milwaukee Eight.

A little over a year ago I wrote about the history of the Harley-Davidson engines.  It’s one of the articles that gets a lot of attention/views from across the blogosphere so I thought it might be appropriate to update the post with some newer information.

The Twin Cam 96 was released for the 2007 model year in August 2006. Although the engine was the successor to the Evolution engine (“Evo”), they share a number of characteristics with nearly all previous HD engines. Both engines are a V-twin configuration at 45 degrees, are air-cooled, and control valve timing with push-rods. The crankshafts have a single pin with a tongue and fork arrangement for the connection rods. These are sandwiched between a pair of flywheels.  The HD Twin Cam 96B engine was released at the same time and is currently used on all softail models.  The TC96 is approximately 1584cc. The motor company has released Screamin’ Eagle models named TC103, a 103-cubic-inch (1,688cc) which is used in the 2009 Tri-Glide Ultra Classic (Trike) and the TC110, a 110-cubic-inch (1,803cc) in the 2009 CVO models (Fat Bob; Softail Springer; Road Glide; Ultra Classic Electra Glide).  The TC110 comes in an upgrade kit for the TC96.

It’s been speculated that the Motor Co. moved to the Twin Cam not because the Evo had reached its power limits as a design, but because HD could not prevent other manufacturers from making clones of the design. With the Twin Cam, HD was able to preempt cloning via the U.S. Patent Office, thereby making it a lot more difficult and expensive for the aftermarket vendors to compete with the Motor Co. in the development and sale of upgrades or complete motors.

In order to comply with the increasingly-stricter EPA standards, all TC96 equipped Harleys come from the factory tuned very lean, which in turn creates a great deal of heat.  All ‘07 and later Big Twins are equipped with Electronic Fuel Injection (EFI) and 02 sensors for closed-loop operation, allowing an extremely lean tune to be safely, and consistently achieved. This has been a topic of much discussion in the Harley world, as many have commented that the excessive heat makes the TC96 too uncomfortable to ride in stop and go traffic, or in the heat of the summer. There are also concerns about heat’s impact on the longevity of the engine. To help combat this many owners re-tune their engines, run synthetic oil or add an oil cooler; and HD developed a “Parade” mode in which one cylinder shuts down on the Twin Cam to prevent damage to the engine.

Sources: Answers; Harley-Davidson; Wikikpedia; Shop Manuals

Photo courtesy AnimatedPiston.

All Rights Reserved © Northwest Harley Blog

Read Full Post »

You see it all the time…companies involved in cross-promotion or product placement deals for television and/or films.  High-tech companies are the worst in pushing products including Apple Computers, which must have a warehouse full of MacBooks for their “hired-out-for-loan” program in exchange for exposure.  From the first Tom Cruise “Mission Impossible to Fox’s “24″, Apple must outspend all other PC companies in product placement and is perhaps more active in this area than any other technology company.  Product placement has become a significant source of revenue for media companies and I would assume that manufactures compensate the producers in some manner.

I think my first exposure to product placement (that I remember) was while watching Steve McQueen steal a Triumph from the Nazis and chasing himself around the fields of Germany in The Great Escape, the finest motorcycle sequence ever filmed, in my humble viewpoint and I didn’t know for years that Bud Ekins made the big jump.

However, after recently seeing “Indiana Jones and the Kingdom of Crystal Skull it would seem that Harley-Davidson is joining the product placement cult.  Just like in the movie “Wild Hogs” which had both “product placement” for a physical product as well as self-promotion for a media property (Extreme Makeover – Home Edition),  when Mutt (Shia LaBeouf) speeds through the college campus with Harrison Ford riding “bitch”, it was on a Harley.  By the way I think stunt rider Lee Morrison is one of the best motorcycle riders on the planet! 

But what type motorcycles were they using?  The two-wheeled star of the movie is a 2007 Softail Springer Classic that was modified to look “period correct” — from 50 years ago.  Harley supplied Lucasfilm with the bikes and requested that they be recognizable as a Harley, however, the bike’s builder, Justin Kell, stated that he modeled them to be a postwar Knucklehead and did a lot more than just put 1955-56 tank badges on them.  Modern improvements were necessarily left intact on the motorcycles because the bikes were used to do high-speed stunts in the film.

Because of product placement deals the film had to use new bikes.  A total of five bikes were built for the film, one of which was an effects bike that was destroyed in the course of filming and two of the remaining bikes will be returned to Harley-Davidson, which plans to display them in the new motorcycle museum, opening July 12th in Milwaukee. The remaining two others were purchased by the production company.

The chase scenes move rather fast and many people won’t notice, but astute bikers likely noticed the belt drive in the campus chase scene.  Also the not-so “period correct” bikes had a disc brake on the front wheel, dual throttle cables, a “Twin Cam” engine along with modern grip/hand controls, including a starter button when it was seen being kick-started earlier in the movie.

I wonder where we’ll see Harley placement next?  To me, Wild Hogs and now Indiana Jones is a new high (or new low, depending on your perspective) in marketing strategy. I checked out the movie web site and there are plenty of games, promotions and activities to satisfy the interactive mind – expected for a film such as this. What I was surprised not to find was a tie-in to Harley-Davidson for a ‘Wreck a Hog’ simulation game, since they blatantly promote the destruction of the motorcycle in the film.   

Harley did sink rather low…I found a “Motor Wheels Mutt” licensing deal for a toy tie-in back to Harley on the Burger King site.

 

Train photo courtesy of Lucasfilms.

Motor Wheels Mutt courtesy of Burger King

Read Full Post »

%d bloggers like this: