Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-18-2008, 12:56 AM   #11 (permalink)
MechE
 
Join Date: Dec 2007
Location: Bay Area
Posts: 1,151

The Miata - '01 Mazda MX-5 Miata
Thanks: 0
Thanked 18 Times in 15 Posts
Quote:
Originally Posted by Duffman View Post
Like I said earlier though, most of the basic tech and theory was available a long time ago, its largely more implemented now though because we have better manufacturing tools to implement it.
I had a materials professor a few years ago that said something interesting..... He said that ~80% of the steels used in cars today hadn't even been invented 5 years prior... Now, I haven't checked on how valid that actual numbers are - but he did write the textbook we were using


Quote:
Originally Posted by Duffman View Post
edit: I forgot to add as well, changes in fuel formulation have also had a big effect on the cleanliness of cars, and thatís really an external to the idea you are putting forward.
I totally never considered that.... I wonder if there's a time line of fuel formulation standards somewhere... I agree it could very well have a big effect - but I'm trying to make sure claims are substantiated.

__________________
Cars have not created a new problem. They merely made more urgent the necessity to solve existing ones.
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-18-2008, 01:15 AM   #12 (permalink)
Master EcoModder
 
Join Date: Mar 2008
Location: Edmonton, AB, Canada
Posts: 531
Thanks: 11
Thanked 12 Times in 11 Posts
I don’t know about his claim, they still use cheap steel, but HSLA really is just our same basic steels with less impurities to make them better. Personally I feel it is the manufacturers ability to mold intricate plastic shapes now, CNC equipment is a dime a dozen in the manufacturing sector, we can do things with cylinder heads now that had to be hand ported before. The repeatability from part to part would be inconceivable 25 years ago. This gives designers the ability to better optimize their designs. This has really been possible for 100 years but you were buying a hand crafted Ferrari to get it.

As to the fuels, it might be hard to pin down but the big leaps are easily visible; Lead removed in 1975. The switch from 5000+ ppm S to LSD to ULSD. The adoption of oxygenated gasolines. Adoption of top tier gasoline helps an engine maintain its ability to meet emissions standards.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Aerodynamic Heavy-Duty Truck Trailer Cuts Fuel Consumption and Emissions By Up to 15% SVOboy Aerodynamics 11 12-27-2011 07:18 AM
Pick Your Poison - Whose gas to buy? SVOboy General Efficiency Discussion 84 11-22-2010 10:19 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com