Retrobike Forum Index

It is currently Sun Oct 21, 2018 8:18 am

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 34 posts ]  Go to page Previous  1, 2, 3, 4
Author Message
 Post subject:
PostPosted: Fri May 01, 2009 5:25 pm 
King of the Skip Monkeys
King of the Skip Monkeys

Joined: Wed Nov 07, 2007 4:34 pm
Posts: 29473
1970 ford 'BDB' engine 1700cc = 200 bhp

1968 'BDA' 1601cc = 120 bhp

Obviously drank fuel but thats why RS twin cam Mk1 Escorts are so much fun...


Top
 Profile  
 
 Post subject:
PostPosted: Fri May 01, 2009 6:45 pm 
North Wales AEC / OWMTBC 2010 Champion
North Wales AEC / OWMTBC 2010 Champion
User avatar

Joined: Sun May 11, 2008 10:13 pm
Posts: 6125
Location: Chester
legrandefromage wrote:
Anyway - bored now. Cars are a crap waste of money , unless its one of these:



I was watching this on ePoo, :roll: if i had the spare cash

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0310267911


cherrybomb wrote:
Petrol engine design was set back decades by the American big three (Ford GM & Chrysler) when they forced the adoption of catalytic converters to reduce emissions because they refused to invest in the development of engines using lean burn technology.


Lean burn engines are a much better bet for reduced emissions and improved fuel efficiency than the engines we are still stuck with, but since it is now written into legislation that catalytic converters must be fitted to all vehicles with petrol engines the technology is dead in the water. Exhaust gasses from lean burn engines would destroy a catalytic converter because they run too hot.


Quite interesting and worth further investigation. I didn't think catalytic converters were a must, just the emission output has to be within the given values :?


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 02, 2009 6:57 am 
retrobike rider
retrobike rider
User avatar

Joined: Sun Aug 03, 2008 6:03 pm
Posts: 1645
Location: Prestwick
yea thats whai i thought, its not mandatory to have a cat, but it would be impossible to meet emission regulations without one (unless some serious ahem tinkering with the fueling that would render the car undrivable on the road).


Top
 Profile  
 
 Post subject:
PostPosted: Sat May 02, 2009 7:08 pm 
Old School Grand Master
User avatar

Joined: Tue Oct 09, 2007 3:12 pm
Posts: 4750
Location: The Shire
Easy_Rider wrote:
I didn't think catalytic converters were a must, just the emission output has to be within the given values :?


You may well be right. It's been a while since I looked into it.
The crux of it is though (from memory) that the big manufacturers pushed for catalytic converters which enabled them to meet emission limits (that they fought to have raised) while still using old inefficient (in terms of economy) engines that had been in production for decades.
Cats have a very limited lifespan and use some very environmentally unfriendly materials in their production. Lean burn technology had the potential to give us petrol engines with much lower emissions without the need for a Cat which would also give mpg comparable to, or better than, modern diesel vehicles but with Cats now a cheap way to meet emissions the development halted.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 34 posts ]  Go to page Previous  1, 2, 3, 4

All times are UTC [ DST ]


Who is online

Users browsing this forum: Graham_hkr, RobMac and 13 guests


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 post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group