MustangForums.com

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Underdrive Pulleys

Thread Tools
 
Search this Thread
 
Old 11-07-2007, 03:44 PM
  #1  
midnight50blues
Thread Starter
 
midnight50blues's Avatar
 
Join Date: Mar 2007
Location:
Posts: 47
Default Underdrive Pulleys
What isthe difference betweenaluminumand steelunderdrive pulleys? Which one is better?
midnight50blues is offline  
Reply
Old 11-07-2007, 03:47 PM
  #2  
65coupe88hatch
4th Gear Member
 
65coupe88hatch's Avatar
 
Join Date: May 2006
Location: Pennsylvania
Posts: 1,597
Default RE: Underdrive Pulleys
I would have to go ahead and guess weight, everyone i know bought aluminum dont really know which is better.
65coupe88hatch is offline  
Reply
Old 11-07-2007, 07:01 PM
  #3  
Alero99
3rd Gear Member
 
Alero99's Avatar
 
Join Date: Oct 2006
Location:
Posts: 905
Default RE: Underdrive Pulleys
think both are gains over stock pulleys, but aluminum being light less rotational inertia (is that the right word?) hence the belt drive spins easier and less hp is taken up by it...
Alero99 is offline  
Reply
Old 11-07-2007, 08:08 PM
  #4  
dimebag
6th Gear Member
 
dimebag's Avatar
 
Join Date: May 2006
Location: earleville md
Posts: 10,357
Default RE: Underdrive Pulleys
both are trash, and a waste of money

my new(used) motor had udp's on it... i took them off
dimebag is offline  
Reply
Old 11-07-2007, 08:10 PM
  #5  
white93pony
3rd Gear Member
 
white93pony's Avatar
 
Join Date: Jun 2006
Location: oklahoma
Posts: 643
Default RE: Underdrive Pulleys
agreed^^^^^ dont waste money on them
white93pony is offline  
Reply
Old 11-07-2007, 08:12 PM
  #6  
URLACHER54
2nd Gear Member
 
URLACHER54's Avatar
 
Join Date: Jun 2007
Location: Gambrills, MD
Posts: 328
Default RE: Underdrive Pulleys
yea thats why i sold mine before i put them on, my mechanic said you wont notice the increase in HP plus it will make you car run a little hotter.
URLACHER54 is offline  
Reply
Old 11-07-2007, 08:17 PM
  #7  
stang8689
6th Gear Member
 
stang8689's Avatar
 
Join Date: Jan 2007
Location: Milford, Delaware
Posts: 5,464
Default RE: Underdrive Pulleys
The crand pulley is what gives you the most
stang8689 is offline  
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4 Valve Head questions
GimpyHSHS
4.6L (1996-2004 Modular) Mustang
19
12-19-2023 01:12 PM
Crankshaft pulley
spdeplayer2
4.0L V6 Technical Discussions
5
10-24-2015 09:45 AM
High Pitch Whine. Help?
FivePointToTheOh
2005-2014 Mustangs
9
09-29-2015 12:53 PM
need traction
mikesr4565
Suspension
5
09-21-2015 10:26 AM
Rear Suspension 2001 GT
GimpyHSHS
4.6L (1996-2004 Modular) Mustang
3
09-18-2015 12:27 PM
Tags
Back to Subforum
5.0L (1979-1995) Mustang
View Next Unread
throttle body and maf??




Advanced Search
Quick Reply: Underdrive Pulleys


Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 03:34 PM.