From four to three
     Follow us on 
BS Motoring Web  
  Monday, May 21, 2012
 
HomeCarsBikesTravelGalleryBlogsMagazineWeb TVAbout us
 
 
Home Blog
From four to three
By : Rohin Nagrani | Published : February 16, 2011
Email Print [2] Comment   Facebook Facebook   Add to Favorites Twitter  
More Photos | Video
The world is getting smaller. Eight cylinder cars are being replaced by six-cylinder, forced induction motors. Six-cylinder models are being replaced by forced induction four-cylinder models. But four-cylinder models are being replaced by three-cylinder, naturally aspirated cars. And that is where I have a problem.

You see, I have been driving quite a few three-cylinder cars off-late. The Maruti Wagon R, the Alto and VW Polo all from our long-term fleet. The triumvirate boast of three pistons going about doing their vertical motions, distorting reality and my patience. Inherently unbalanced they have this nagging tendency to shake your temples and pupils out and leave you in a state of pendulum motion long after you've parked the car. Manufacturers insist that three-cylinder engines are more efficient and are generally cleaner for the environment. My experience with all three has been otherwise.

Because they are imbalanced, it means there are certain 'flat spots' in the powerband. Effectively your right foot goes further down and into the firewall before you 'taste the powerband'. All in all, I end up shifting later because momentum is an issue and that means shifting into fifth much later. Conclusion? An inefficient way of driving because of inherent motor design issues that have long damaged the environment as well. Am I to blame? Okay, so I will shoulder some part of it because I have very little patience. But does that mean three-cylinder engines have to continue to be this way? I think not.

To cut a long story short, some manufacturer (can't recall who) has designed a new counter balancer that negates the 'imbalance' issues of a three-cylinder. If that's so (and assuming said manufacturer does achieve it), then I hope for chrissakes that the others are allowed to adopt it. Quickly!

Pages :| 1 
Advertisements
The Best Seller is Also the No. 1 in Mileage. Click here
Invest in Real Estate. Villas in Bangalore starting @ Rs.66 lacs
One of the leading business schools in the world.Know More
Email Print [2] Comment   Facebook Facebook   Add to Favorites Twitter    
blog comments powered by Disqus
  Posted by arun at 17th February,2011
I dont understand what you mean by unbalanced. A three cylinder is perfectly balanced mechanically, whereas a four cylinder is not. But sadly they dont produce balanced power strokes. Thats why we still have idle vibrations. Vibrations are generally worked out using counter-balancer, where there is weight running the opposite direction at each power stroke. Also note that dropping once cylinder means, the size of each cylinder goes up. So they can have about 12% larger crankshafts than a four cylinder car and thus produce more torque at any given RPM. The problem with three cylinders is more about the engineering required to keep it as good as it four cylinder equivalent. Nissan Micra is a standing example of how good an three cylinder engine can be. Unlike all its rivals, its peppy, without being short geared or over sized. The Alto is a three cylinder car and its known to be the most fuel efficient and still be drivable.
  Posted by Amaan at 16th February,2011
I believe you are referring to Nissan. It is they who have introduced a new counter-balancer to address the imbalance issues with the 3-pot motor of the Micra (or am I wrong?)
Twitter
Follow BSMotoring on Twitter
Read Emailed Commented
Other Manufacturers Other Models
 
Explore BSMOTORING.COM
  Home   Cars   Bikes   Gallery   General   Resources   Explore Group Network
 Quick Comparisons
 Road Tests
 Motofocus
 Motorsports
 Destinations
 Tests
 Reviews
 News
 Features
 Motorsports
 Motor shows
 Classics
 Quick Comparisons
 Tests
 Reviews
 News
 Features
 Motorsports
 Motor shows
 Classics
 Quick Comparisons
 Photo Gallery
 Video Gallery
 Wallpaper
 Travel
 Blogs
 Magazine
 About us
 Archives
 Register
 Feedback
 Archives
 Subscribe to Magazine
 Advertise with us
 Contact Us
 Business-standard.com
 bshindi.com
 Archives
 Livemarkets
 smartportfolio II