UDPs
Miss 'em yet? And thanks for the good deal too!
6th Gear Member
Joined: Jun 2007
Posts: 16,182
From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
From the HowTo's in the stickies, once again kudos to TacoBill...
https://mustangforums.com/forum/2005...with-pics.html
https://mustangforums.com/forum/2005...with-pics.html
3rd Gear Member
Joined: Nov 2008
Posts: 656
From: Louisiana
From the HowTo's in the stickies, once again kudos to TacoBill...
https://mustangforums.com/forum/2005...with-pics.html
https://mustangforums.com/forum/2005...with-pics.html
6th Gear Member
Joined: May 2005
Posts: 5,736
From: MD/WV
2nd Gear Member
Joined: Nov 2008
Posts: 199
From: texas
UDP's will supposedly free-up about 3-5 RWHP. The average driver won't notice that with the Butt Dyno.
I highly doubt that UDP's will make ANY difference in your mileage. Since I've driven the exact same 420 mile run, stopping at the same gas stations, driving with cruise control at the same speeds almost every 2 weeks for almost 2 years I can tell you that you can do NOTHING to the car and still see swings of 4 MPG or more difference from trip to trip. There are so many variables I'd be out of breath. The 4 MPG that ronniegibson1978 is referring to is NOT UDP related.
I highly doubt that UDP's will make ANY difference in your mileage. Since I've driven the exact same 420 mile run, stopping at the same gas stations, driving with cruise control at the same speeds almost every 2 weeks for almost 2 years I can tell you that you can do NOTHING to the car and still see swings of 4 MPG or more difference from trip to trip. There are so many variables I'd be out of breath. The 4 MPG that ronniegibson1978 is referring to is NOT UDP related.
6th Gear Member
Joined: Jun 2007
Posts: 16,182
From: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
From a pile of forum members here and other Mustang forums. Most HP free-up mods are minor in nature since it simply involves either a reduction in rotating mass or lightening the accessory loads on the crank, none of which have any technical basis for anything beyond fractionional impact on fuel mileage. Do you think the #'s are otherwise?
Last edited by Nuke; Sep 1, 2010 at 07:20 AM.
3rd Gear Member
Joined: Nov 2008
Posts: 656
From: Louisiana
These pullies that I put on my car ARE NOT THE CORRECT APPLICATION! The crankshaft pulley is for a '99-04 Mustang and NOT for the '05-10 Mustang GT like the pic at Brenspeed shows. This was verified through Tony at Saleen Performance Vehicle. I bought mine used and the seller did not know this and we've come to a resolution but again, to those looking for UDP's and want the Saleen 3-piece set, you need THESE:
Hope this helps avoid the same mistake I made because the tech guy at Brenspeed named Chandler is a complete idiot and a RA-TARD that didn't even know this even after 3 calls to this tool BEFORE I bought these Red Anodized Saleen pulleys.
Last edited by UltraKla$$ic; Sep 5, 2010 at 11:55 AM.