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Author
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Topic: Are underdrive pullies worth it?
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The Nick
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Member # 2244
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posted
 
 
I've been thinking about getting a set of pullies but I don't know if it is worth the money.
This is my current set up:
'88 LX HB 5.0 (speed density)
Trick Flow TW Heads
Trick Flow Stage 1 cam
Trick Flow Street Heat intake
BBK 70mm TB and EGR
I did some research on old posts and saw that some people have problems with the batter/alternator.
Also, I need to spend some money first on an adjustable f/p regulator and guage, and then convert the car to mass air. After that, I don't know. Would pullies be a good buy and how much power should they free up?
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Fast, Cheap or Reliable. Pick two and live with it.
Posts: 1215 | From: The Delta | Registered: Dec 2002
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Stimson
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Member # 51
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posted
They're a great bang for the buck mod. They'll free up an easy 8-12 rwhp. If you have charging problems, upgrade to a 3G alternator. Many cars do not have a charging problem with pullies though.
Posts: 2373 | Registered: Jun 2000
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Quick 88LX
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Member # 1950
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posted
I have pullies on my beast and a 3g alternator and she runs smooth as silk. No charging problems here.
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1785 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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The Nick
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Member # 2244
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posted
If you guys don't mind me asking, which brand did you go with? March, FRPP, BBK? I've heard good things about March pullies, I'm just looking for more info.
EDIT:
It looks like the FRPP set comes with the belt, which could save some hassle. Are the March pullies that much better though?
[ March 13, 2003, 05:03 PM: Message edited by: The Nick ]
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Fast, Cheap or Reliable. Pick two and live with it.
Posts: 1215 | From: The Delta | Registered: Dec 2002
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Gear Head
JARED
Member # 779
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posted
Pullies made a big differnce in my car. I have the BBK underdrives and I havent had any problems with them at all. I just have the crank and water pump pulleys on though.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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Stimson
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Member # 51
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posted
80,000 happy miles on my Auto Specailties pullies ![[patriot]](graemlins/patriot.gif)
Posts: 2373 | Registered: Jun 2000
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Sicc98GT
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Member # 1862
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posted
If you leave the altanator pulley off do you still see good gain in hp?
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Black 98 GT - sold
05 trd off road tacoma
Posts: 485 | From: San Ramon | Registered: Sep 2002
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Stimson
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Member # 51
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posted
The alternator pulley thing is an internet yth that just won't die. Its been YEARS since underdrive pully kits were sold with a larger diameter alternator pullies. These days, the alternator pullies in the kit are exactly the same diameter as your existing pulley. You only install it so the colors of all your pullies match and your engine bay looks pretty ![[Smile]](smile.gif)
Posts: 2373 | Registered: Jun 2000
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Sicc98GT
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Member # 1862
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posted
Thanx for the info
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Black 98 GT - sold
05 trd off road tacoma
Posts: 485 | From: San Ramon | Registered: Sep 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by st5150:
The alternator pulley thing is an internet yth that just won't die. Its been YEARS since underdrive pully kits were sold with a larger diameter alternator pullies. These days, the alternator pullies in the kit are exactly the same diameter as your existing pulley. You only install it so the colors of all your pullies match and your engine bay looks pretty
i think mine is bigger, but i took my pulleys off cause it did hell with my alternator and i hated seeing the volts drop when i'd come to a stop.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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DropTopFox
drama
Member # 1689
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posted
As much as you know and I value your knowledge you're wrong on that one Sawson. I just got my pullies during this past christmas and the Alt. pulley is definately bigger. Mine are FRPP. and yes if you do put the stock alternator pulley your alternator won't spin so slow anymore and it will go back to making it's top charge at a stop. Trust me here, I just did it. Go ahead and say I'm an idiot but I know this one for a fact. Pullies were definately worth the money though, I felt a sweet improvement when I stomped on the gas. ![[worship]](graemlins/worship.gif)
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Go out and do something for yourself today everyone, quit depending on others
-Me
http://www.CaliforniaFords.com/cgi-bin/album.pl?album=00001689
Posts: 4003 | From: San Bruno | Registered: Aug 2002
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Stimson
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Member # 51
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posted
I was talking about fox body 5.O's like the poster has Pulley makers realized the 5.O's weak factory alternator couldn't be underdriven anymore and quit shipping a larger underdrive pulley for them.
Posts: 2373 | Registered: Jun 2000
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Quick 88LX
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Member # 1950
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posted
quote:
Originally posted by st5150:
The alternator pulley thing is an internet yth that just won't die. Its been YEARS since underdrive pully kits were sold with a larger diameter alternator pullies. These days, the alternator pullies in the kit are exactly the same diameter as your existing pulley. You only install it so the colors of all your pullies match and your engine bay looks pretty
Uhhhhh... No. When was the last time you actually looked at the two side by side? The pulley on my 3g that came with it was smaller than the pulley I put on it now. I wonder why that is??? Maybe because they DO sell you a bigger pulley!
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1785 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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Quick 88LX
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Member # 1950
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posted
Oh yeah, and you don't need the new belt from FRPP unless your old one is worn out. The belt tensioner makes up for whatever new slack is produced from the different sizes in pulleys now. I HAVE DONE THIS 3 TIMES ON 3 MUSTANGS so I know it works. This ain't no hearsay bullshit.
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1785 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by st5150:
I was talking about fox body 5.O's like the poster has Pulley makers realized the 5.O's weak factory alternator couldn't be underdriven anymore and quit shipping a larger underdrive pulley for them.
i got a big one for my Jeep's 5.0 when i got my BBK Underdrive pulleys. How much are 3G alternators? i wanna put my pulleys back on and i need a new alternator it wasn't charging on the freeway coming home today ![[Frown]](frown.gif) Damn regulator.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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JoeT
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Member # 298
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posted
I bought an underdrive set (aluminum, who knows what brand),my '93 fox has a factory 3G alternator and the 'underdrive' alternator pulley is *exactly* the same size.
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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Quick 88LX
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Member # 1950
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posted
quote:
Originally posted by shade-tree:
I bought an underdrive set (aluminum, who knows what brand),my '93 fox has a factory 3G alternator and the 'underdrive' alternator pulley is *exactly* the same size.
That is odd, mine was from 3g and it wasn't. Did yours come from an SN-95 car such as a 96+ 4.6? If so, they already have the underdrive pulley on it and that is why a few companies sell just the crank and water pump. I don't have 4.6 obviously, but my neighbor does and he bought the pulleys from Steeda and they sent all 3. Yes, the alternator pulley was a waste in that case. But how many near stock FOX people have 3G alternators?
[ March 13, 2003, 10:01 PM: Message edited by: Quick 88LX ]
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1785 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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Stimson
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Member # 51
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posted
quick88 and cobrajeep- read my last post on this topic, I was talking about the alternator the orginal poster has... a stock '88 GT alternator, again I was not talking about factory 3G cars, but rather factory '87-93 5.O alternators.
Posts: 2373 | Registered: Jun 2000
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Wildfire532FB
CAFords OG
Member # 1482
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posted
3G alternators give out how many amps? is the peak amp at low or high rpm?
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./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by st5150:
quick88 and cobrajeep- read my last post on this topic, I was talking about the alternator the orginal poster has... a stock '88 GT alternator, again I was not talking about factory 3G cars, but rather factory '87-93 5.O alternators.
my alternator sucks what a disappointment. I can't even find my stock alternator in the garage i took too much car parts in there
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./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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Quick 88LX
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Member # 1950
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posted
I believe that 3g sells three different types of alternators that have different amps for each. I could be wrong but I think they are 80,140, and 160 high output (like for huge stereos) I am not sure on the numbers so don't quote me. But cobrajeep: they have some NICE alternators that your setup would work perfectly with.
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"Men are Made, Not Born"
Car Picture : http://www.angelfire.com/theforce/quick88lx/
Original Member #495. Can I get my number back?
Posts: 1785 | From: Fairfield, CA/Okinawa, Japan | Registered: Oct 2002
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Wildfire532FB
CAFords OG
Member # 1482
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posted
i think i'd go with a 160. where can i get one? local autoparts place? or thru summit?
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./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17578 | From: 530 | Registered: Jun 2002
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JoeT
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Member # 298
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posted
quote:
Originally posted by Quick 88LX:
That is odd, mine was from 3g and it wasn't. Did yours come from an SN-95 car such as a 96+ 4.6? If so, they already have the underdrive pulley on it
like any fox police car, my coupe came with a 3G alternator...
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1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
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Gear Head
JARED
Member # 779
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posted
I need to get a new 3g alternator and paint it black and put that on my car so I can put my alternator underdrive pulley back on.
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Support our troops!
Posts: 5685 | From: EASTBAY | Registered: Jan 2002
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87mustang
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Member # 2496
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posted
THE NICK - i have a used set i will sell u 4 $40 if u want! ![[burnout]](graemlins/burnout.gif)
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BEAT YA
Posts: 159 | From: 831 | Registered: Feb 2003
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