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Thread: are underdrive pullys worth it

  1. #1
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    are underdrive pullys worth it

    are underdrive pullys worth it, will they kill my battery cause it wont charge right, and how much of a gain will i see any info is great

  2. #2
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    They wont do anything to the battery, typical gains are seen around 11-15rwhp.
    Only thing is dont run the A/C with these pullies at really high RPMs. Its ok for normal driving though. So, yes they are worth it!
    2012 F-250 XLT/FX4 RCLB 6.7 Powerstroke
    H&S XRT Pro Race(550hp/1100tq)/ 4" flopro exhaust/H&S EGT kit/SPE Full diff unlock/S&B CAI/H&S motorsports upcharge pipe kit/ DPF,CAT,EGR,UREA Deleted/Icon 3.5" Lift-Vs 2.0 shocks/PMF DSS w' Bilstein 5100s/Icon Adj Track Bar-upgraded steel bearing/RIGID LEDs/Kenwood DNX570HD w/idatalink maestro/Hertz5x7s/Memphis 12" slim/500.1 JL slash amp/Recon f250 led emblems

  3. #3
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    They are worth it--just make sure to get the crank and alternator pulley as a set.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  4. #4
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    hey hillbilly...what part of ri are ya from? i grew up in providence...

  5. #5
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    ive been looking around but i cant seem to find any kits that say crank and alternator...where did you get yours?

  6. #6
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    Hitman X on this site sells them for I believe 225$ Shipped which is a good price in the for sale section. Search the forum for ASP Underdrive Pulleys and PM Hitman X for more info. Thats who I got mine from.
    2012 F-250 XLT/FX4 RCLB 6.7 Powerstroke
    H&S XRT Pro Race(550hp/1100tq)/ 4" flopro exhaust/H&S EGT kit/SPE Full diff unlock/S&B CAI/H&S motorsports upcharge pipe kit/ DPF,CAT,EGR,UREA Deleted/Icon 3.5" Lift-Vs 2.0 shocks/PMF DSS w' Bilstein 5100s/Icon Adj Track Bar-upgraded steel bearing/RIGID LEDs/Kenwood DNX570HD w/idatalink maestro/Hertz5x7s/Memphis 12" slim/500.1 JL slash amp/Recon f250 led emblems

  7. #7
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    foster we were the kids who always had no school when it snowed
    Last edited by hillbilly6.0; 01-14-2009 at 10:01 AM.

  8. #8
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    yeah i remember waking up early before school started to watch the news for closings...i was always disappointed though

  9. #9
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    Dec 2007
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    thanks man i appreciate the info...i might have to decide between headers and a pulley though...ima go with headers if i cant get both

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