Help & FAQs    Search BCF    Members    Groups    Events Calendar
Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


Advances in horse power over the years?

 Reply to topic
Bike Chat Forums Index -> Random Banter
View previous topic : View next topic  
Author Message
Dr. Quack This post is not being displayed because the poster has bad karma. Unhide this post / all posts.

WildGoose
White Van Man



Joined: 21 Mar 2002
Karma :
PostPosted: 19:30 - 27 Mar 2011    Post subject: Reply with quote
The Flip flop.

Invented in 1915, by Bradbury + Co.

Fuckers.
____________________
So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976
 Back to top
View user's profile Send private message You must be logged in to rate posts
Dr. Quack This post is not being displayed because the poster has bad karma. Unhide this post / all posts.
Wilson12345 This post is not being displayed because the poster has bad karma. Unhide this post / all posts.
Dr. Quack This post is not being displayed because the poster has bad karma. Unhide this post / all posts.
Wilson12345 This post is not being displayed because the poster has bad karma. Unhide this post / all posts.
Dr. Quack This post is not being displayed because the poster has bad karma. Unhide this post / all posts.

MinhDinh
World Chat Champion



Joined: 01 Jan 2005
Karma :
PostPosted: 21:50 - 27 Mar 2011    Post subject: Reply with quote
4 horses back then really meant 4 horses most likely.
____________________
Hit the G spot. Wink
 Back to top
View user's profile Send private message You must be logged in to rate posts

Shaft
World Chat Champion



Joined: 27 Dec 2010
Karma :
PostPosted: 01:49 - 28 Mar 2011    Post subject: Reply with quote
MinhDinh wrote:
4 horses back then really meant 4 horses most likely.


Not necessarily.

Back then, motors were taxed by their HP ratings, so the lower the HP, the lower the overall cost.

The HP ratings were based on the RAC standard, which multiplied bore size by the number of cylinders, nothing to do with swept volume; this lead to lots of undersquare engines, featuring tiny bores and massive strokes.

Granted, the engines of the day weren't hugely powerful (compared to what we can achieve today) but they weren't as poor as their HP ratings would lead us to believe, if you used more modern calculations.

What they were was very torquey, which is why they could pull very tall gearing and often had only two or three speed gearing, or just a single speed direct drive.
____________________
Things get better with age; I'm close to being magnificent........
20 RE Interceptor, 83 Z1100A3, 83 GS650 Katana
WooHoo, I'm a Man Point Millionaire! https://www.bikechatforums.com/viewtopic.php?t=234035
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts
warped one This post is not being displayed because the poster is banned. Unhide this post / all posts.

Robby
Dirty Old Man



Joined: 16 May 2002
Karma :
PostPosted: 06:27 - 28 Mar 2011    Post subject: Reply with quote
As shaft said, horsepower was measured differently so is not directly comparable with the current measurement of brake horsepower, and a 4hp bike from then would be expected to have more horsepower then a 4 bhp bike today - at a guess more like 8-10 on a modern dyno.

It would feel far more powerful to ride than a modern 4bhp moped. Probably not much more top speed, I wouldn't expect much over 45mph, but more flexibility. It is after all a long stroke low revving 500cc single, so you get plenty of torque from that heavy crank and flywheel.
 Back to top
View user's profile Send private message You must be logged in to rate posts
Old Thread Alert!

The last post was made 15 years, 190 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> Random Banter All times are GMT + 1 Hour
Page 1 of 1

 
 You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 
Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.08 Sec - Server Load: 0.98 - MySQL Queries: 13 - Page Size: 70.24 Kb