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Author
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Topic: Underdrive Pulleys are they worth it?????
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shakalaka916
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Member # 6057
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posted
 
 
Looking at maybe getting some underdrive pulleys.How much of a increase in coolant temp will there be is it a big increase 5 degress 10?? voltage?? how much are they to istall..
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1996 Red Gt-
K&N FIPK2
Bbk Off Road X-pipe
Slp loudmouth Exhaust
Posts: 88 | From: SaCtOwN 916 | Registered: Sep 2005
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92stangLX
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Member # 3252
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posted
You should pickup some HP by installing pulleys. They shouldn't affect your water temp (mine didn't) if your cooling system is in good shape.
I never had a charging problem with mine. However, other people have. You should be able to install the pulleys yourself in an afternoon.
Good luck ![[patriot]](graemlins/patriot.gif)
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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SmokinLX
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Member # 1684
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posted
Noticed a good increase with My 5.0. Keep Your original's then if You have a problem with cooling or alternator just swap back! Also with My car had to switch back to stock with supercharger install.
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Dont claim power if ya cant mile per hour. 10 second AOD
Posts: 4388 | From: East Bay | Registered: Aug 2002
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six 5.0
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Member # 3153
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posted
I think thier on of the best mods for the $$$$$. You can fell an increse of power right away. You can install em in 10/20 min.
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IwishIwasan03COBRA!
Posts: 4425 | From: SAN MATEO | Registered: Aug 2003
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Stangs R Us
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Member # 4495
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posted
yeah do the pulleys, i would say dont do the alternator pulley tho,
Posts: 3100 | From: sacramento | Registered: Aug 2005
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Blind
2.3L
CAFords OG
Member # 3052
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posted
on most "underdrive" kits the alternator pulley is actually an "overdrive" so that you dont have charging problems.
so I would say DEFINATELY do the alternator if you do the others.
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89 LX Notchback ex 4cyl, 14psi
02 Harley F150, 15psi
Posts: 8521 | From: Fairfield | Registered: Jul 2003
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Wildfire532FB
CAFords OG
Member # 1482
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posted
quote:
Originally posted by red GT black rallyes:
yeah do the pulleys, i would say dont do the alternator pulley tho,
if he leaves the bigger pulley on the alternator the alternator will spin slower and he will have charging issues.
I have underdrive pulleys and during the summer i seemed to have a cooling problem but it might have been caused by air in the system not sure cause now it stays at the temp i want it to and never gets hot.
Also when i come to stops at night my headlights will dim down but its cool cause when i rev it it seems like the car is coming alive haha.
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17580 | From: 530 | Registered: Jun 2002
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2coupe
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Member # 2991
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posted
I have the BBK aluminum ones on my fox. I haven't had a problem since and I changed all 3 (water, crank, and alternator). Definetely worth the money.
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87 NX powered coupe
Full suspension and now working on a motor recipe.
Posts: 165 | Registered: Jun 2003
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PWR HNGRY 302
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Member # 6000
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posted
I did it in about 30 min. It was a noticable diff. Iam happy with them. ![[dance]](graemlins/dance.gif)
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87 Fox- Restoration in progress
2014 Tacoma DCLB MGM
2017 Prius Prime (The Daily)
Posts: 2655 | From: SF Bay Area | Registered: Sep 2005
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94gt
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Member # 3060
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posted
quote:
Originally posted by Cobra5.0Jeep:
quote:
Originally posted by red GT black rallyes:
yeah do the pulleys, i would say dont do the alternator pulley tho,
if he leaves the bigger pulley on the alternator the alternator will spin slower and he will have charging issues.
I have underdrive pulleys and during the summer i seemed to have a cooling problem but it might have been caused by air in the system not sure cause now it stays at the temp i want it to and never gets hot.
Also when i come to stops at night my headlights will dim down but its cool cause when i rev it it seems like the car is coming alive haha.
lol, my 94gt did that SAME thing... I liked it.
FWIW, I know there are several guys on the Mach1reg that have had oil pumps fail on them after installing pullies. I believe it only affects the mach1/maurader engines, since its been proven ford went to a cheaper oil pump shaft.
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2020 Explorer ST
2011 Silver Raptor 'Screw
Posts: 5777 | From: Beavercreek, OH | Registered: Jul 2003
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TRIXSNK
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Member # 2844
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posted
Sorry to jump in but if anyone is in need of a set for a 5.0 lmk
I have a set of March pullies never installed (polished)
Posts: 3740 | From: Bay Area | Registered: May 2003
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uh0h50
CAFords OG
Member # 3125
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posted
how much for the march pullies trixsnk? you pm box is full
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AP1 S2000
Posts: 2926 | From: Bay Area 510 | Registered: Jul 2003
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twisted54
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Member # 1981
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posted
No problems with my ASP water, alt and crank U/Ds...
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2013 Black on Black 5.0 with Boost N Things - CORN FED 🌽
Posts: 3422 | From: ebay | Registered: Oct 2002
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Luke87GT
Lay'n more stripes
than Caltrans
Member # 21
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posted
They were worth a solid tenth at the track for me...
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Stangless
Posts: 7802 | From: San Mateo | Registered: Jul 2000
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TRIXSNK
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Member # 2844
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posted
quote:
Originally posted by uh0h50:
how much for the march pullies trixsnk? you pm box is full
box is clear and i pm'd ya
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9 Sec EVO 9 is GONE!
New project in the works.......
Posts: 3740 | From: Bay Area | Registered: May 2003
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