Quote:
Originally Posted by racprops
Nice BUT what did all that do in MPG improvements, from start to converted.
Like from say 15MPG stock to??
Or the VW transporter or the Toyota T100. What was the changes, not drag effects...but MPG?
Rich
|
At the time, we had the 55-MPH National Speed Limit. And engineers said that an 10% drag reduction would translate to a 5% improvement in MPG.
Some Universities continued to use this relationship into 2012.
My Volkswagen went from an average 23.795-MPG, to 26.136-MPG with the addition of all-season radials and a full belly pan.
Adding 18-inches of boat-tail and cardboard and duct tape rear skirts pushed mileage to 30.187-MPG, average.
Highest observed fuel economy was 35.6-MPG.
The HONDA CRX HF went from 52-MPG to 65-MPG and a high of 82-MPG.
The Toyota pickup went from 25.14-MPG @ 65-MPH, to as high as 39.9-MPG at the same speed, on Regular Unleaded.