Quote:
Originally Posted by ECONORAM
I'd like to know how I missed this thread! I am curious about the same thing.
I think the key phrase is CHANGE in speed. F=ma, so this wheel weight will have the most affect during accel/decel, I think.
You should see the specs on my wheels. 42# each, and 43# tires. I made a thread about wanting to get some Centerline forged replacements, but I did the math for payback, assuming a 1mpg gain and it'd take me 168,000 miles to recoup. http://ecomodder.com/forum/showthrea...ate-24491.html But there is another thread from a Prius owner that shows some FE gains... http://ecomodder.com/forum/showthrea...els-23509.html |
The main reason for the gain associated with the Prius in that thread is due to tire design changes and less to do with weight. 15" tires are just better for FE than 17" tires. We have many members who have tried to use lightweight wheels and the FE change was negligible.
in stop and go driving, lightweight is still better.
Acceleration and braking should be much better.