Under Drive pulleys?

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08-18-2012, 11:59 PM

#11

baddog671

6th Gear Member

Join Date: May 2005

Location: MD/WV

Posts: 5,736

Quote:

Originally Posted by jthorn9

I've done a lot of research on these and several people have done independent dyno runs and before/after UD pullies showed little to no dyno gains. Take it for what it's worth but I trust independent dynos more than dynos sposored by a brand.

https://mustangforums.com/forum/must...ml#post8026156

08-19-2012, 06:09 AM

#12

wcgman

5th Gear Member

Join Date: Mar 2006

Location: Colorado

Posts: 2,652

Here's what baffles me...if UDP's can create these gains with no perceptible loss in anything, then why doesnt Ford (and other manufacturers...) include these on every vehicle? We've only heard after market companies talk about UDP as a no-loss scenario, so what gives?

08-20-2012, 07:24 PM

#13

tj@steeda

3rd Gear Member

Join Date: Jul 2011

Location: Florida

Posts: 732

https://mustangforums.com/forum/must...k-numbers.html

Some real world testing!

08-21-2012, 03:03 AM

#14

drewsky

3rd Gear Member

Join Date: Oct 2004

Location: Arizona

Posts: 887

The best example i could give after installing them is this. It basically feels like I turned my AC off when it was already off. Thats almost exactly what it feels like. The AC also drags less power when it is on Ive noticed as well