Under Drive pulleys?

Reply Subscribe

Thread Tools

Search this Thread

Aug 18, 2012 | 11:59 PM

#11

baddog671

6th Gear Member

Joined: May 2005

Posts: 5,736

From: MD/WV

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

Aug 19, 2012 | 06:09 AM

#12

wcgman

5th Gear Member

Joined: Mar 2006

Posts: 2,652

From: Colorado

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?

Aug 20, 2012 | 07:24 PM

#13

tj@steeda

3rd Gear Member

Joined: Jul 2011

Posts: 732

From: Florida

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

Some real world testing!

Aug 21, 2012 | 03:03 AM

#14

drewsky

3rd Gear Member

Joined: Oct 2004

Posts: 887

From: Arizona

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