View Single Post
Old 08-17-2009, 06:51 AM   #8
JFP in PA
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Sorry, but I still don’t buy it for multiple reasons. Interestingly, he ran his tests on a hub design dyno that is well known for always giving considerably higher readings (10-12% are not uncommon) than conventional roller units in side by side runs. I know the manufacturer claims this is because it’s unique design which “eliminates the “roller effect”, but at the end of the day, the rollers are in much wider use. In any case, while I am not going to challenge the veracity of his test; I can tell you that two different cars that I watched being tested showed a slight, but measurable drop in HP and Torque when tested on the rollers. When combined with consistent comments that multiple cars saw lower gas mileage with it out, but recovered the mileage when it was reinstalled; I think you are “tilting at windmills” here……………
JFP in PA is offline   Reply With Quote