Topic: | Fuel Efficiency | |
Posted by: | Richard Hodges | |
Date/Time: | 10/09/10 12:21:00 |
Then you'd be wrong. I spent far too much of my youth first learning engine efficiency theory and then poring over engine & drivetrain charts to choose ratios. All engines have a zone of maximum efficiency (based on rpm and throttle position), broadly centred on peak torque. For several reasons the majority of vehicles (from cars to vans to trucks) will be geared such that they are more efficient at a constant 30mph than a constant 20 mph. They will also produce less CO2, and are likely to produce less noxious emissions (CO/HC/NOx). One might also question how likely drivers are to maintain a constant 20 or 30mph, particularly if there are any speed humps or other physical restraints in the road. Not that I'm against such limits in selected residential zones in the town, but let's stick to the right reasons. |
Topic | Date Posted | Posted By |
West Putney Speed Cushions | 06/09/10 17:39:00 | Guy Sunda |
Re:West Putney Speed Cushions | 07/09/10 09:12:00 | Leonard S. Gore |
Re:Re:West Putney Speed Cushions | 07/09/10 12:59:00 | Richard Carter |
Agreed | 07/09/10 14:12:00 | Dan Bratton |
Re:Agreed | 07/09/10 15:17:00 | Alan Sherman |
Re:Re:Agreed | 07/09/10 16:37:00 | Jonathan Callaway |
Re:Re:Re:Agreed | 07/09/10 16:59:00 | Jean Gilmore |
Re:Re:Re:Re:Agreed | 07/09/10 18:48:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:Agreed | 08/09/10 13:05:00 | Mark Smith |
Re:Re:Re:Re:Agreed | 07/09/10 19:11:00 | Dan Bratton |
Re:Re:Re:Re:Re:Agreed | 07/09/10 19:17:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:Re:Agreed | 07/09/10 19:28:00 | Richard Carter |
Re:Re:Re:Re:Re:Re:Agreed | 07/09/10 19:31:00 | Dan Bratton |
Re:Re:Re:Agreed | 07/09/10 17:21:00 | Leonard S. Gore |
Re:Re:Re:Re:Agreed | 07/09/10 18:40:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:Agreed | 08/09/10 11:21:00 | Leonard S. Gore |
Re:Re:Re:Re:Re:Re:Agreed | 08/09/10 12:22:00 | Richard Carter |
Stop Start B Smart | 08/09/10 13:52:00 | Guy Sunda |
Re:Stop Start B Smart | 08/09/10 15:25:00 | Peter Savage |
Re:Re:Stop Start B Smart | 08/09/10 16:21:00 | Suzanne Taylor |
Re:Re:Re:Stop Start B Smart | 08/09/10 17:53:00 | Jonathan Callaway |
Re:Re:Re:Stop Start B Smart | 08/09/10 18:15:00 | Mark Smith |
Re:Re:Re:Re:Stop Start B Smart | 08/09/10 18:29:00 | Suzanne Taylor |
Re:Re:Re:Re:Re:Re:Agreed | 08/09/10 17:38:00 | Jonathan Callaway |
Damage caused by speed humps | 08/09/10 22:35:00 | Ian Scott |
Re:Damage caused by speed humps | 09/09/10 09:50:00 | Jonathan Callaway |
Re:Re:Damage caused by speed humps | 09/09/10 10:01:00 | Mark Smith |
Re:Re:Re:Damage caused by speed humps | 09/09/10 17:53:00 | Jonathan Callaway |
Speed humps - cause more harm than good | 10/09/10 11:31:00 | Adam Bailey |
Re:Speed humps - cause more harm than good | 10/09/10 13:10:00 | Jonathan Callaway |
Re:Re:Speed humps - cause more harm than good | 21/09/10 13:53:00 | Adam Bailey |
Fuel Efficiency | 10/09/10 12:21:00 | Richard Hodges |
Re:West Putney Speed Cushions | 10/09/10 12:44:00 | Nicki King |
Re:Re:West Putney Speed Cushions | 11/09/10 12:27:00 | Jonathan Callaway |
Re:Re:Re:West Putney Speed Cushions | 11/09/10 14:52:00 | Caroline Whitehead |
Re:Re:Re:Re:West Putney Speed Cushions | 11/09/10 15:46:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:West Putney Speed Cushions | 11/09/10 16:12:00 | Simon Knight |
Re:West Putney Speed Cushions | 11/09/10 16:17:00 | Richard Hodges |
Re:Re:West Putney Speed Cushions | 11/09/10 16:29:00 | Martine Guy |
Re:Re:Re:West Putney Speed Cushions | 11/09/10 16:45:00 | Simon Knight |
Re:Re:Re:Re:West Putney Speed Cushions | 11/09/10 20:18:00 | Suzanne Taylor |
Re:Re:Re:West Putney Speed Cushions | 11/09/10 21:17:00 | Nicki King |
Re:Re:Re:Re:West Putney Speed Cushions | 12/09/10 21:28:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:West Putney Speed Cushions | 12/09/10 23:15:00 | Alan Thomson |
Re:Re:Re:Re:Re:Re:West Putney Speed Cushions | 13/09/10 10:05:00 | Richard Carter |
Re:Re:Re:Re:Re:Re:West Putney Speed Cushions | 13/09/10 18:40:00 | Jonathan Callaway |
Re:Re:Re:Re:Re:Re:Re:West Putney Speed Cushions | 14/09/10 13:18:00 | Bryony Evens |
Re:West Putney Speed Cushions | 14/09/10 14:26:00 | Nicki King |