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Thread: New Trick flow Underdrive Pulleys

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  1. #1
    Join Date
    May 2008
    Location
    Round Rock, TX
    Posts
    3,069
    I knocked off .2 tenths when I installed mine, that was one friday to the next on the track outings...Definately worth it IMO I only did the UD pulley, Alt is stock and I don't have any charging issues.

  2. #2
    Join Date
    Apr 2008
    Location
    newburgh, NY
    Posts
    512
    Quote Originally Posted by chuyr View Post
    im thinking about gettin sum which should i go for lol ill wait 2 c if anyone buys these n trys them out first
    I just got mine they are sitting n the the garage floor. I just need some time to put them on.
    Step 1. crus at it.
    Step 2. get a hammer.
    Step 3. torch it.

  3. #3
    Join Date
    May 2008
    Location
    Southern WI
    Posts
    460
    I'm glad to see this thread up again, I still want to buy a set, but wanted to read some feedback first.

    Tyler and Jon, what brand did you guys use? Thanks.
    Mike
    2000 RCSB
    '05 LS2 11.5:1 C.R. l K&N l LT's l Torquer V2 l PAC Springs l Manley 7.4's l 92mm TB l LS7 Lifters l Circle-D 3200 l P&P TB l ARP Rod Bolts l LS1 E-fans l Nelson 93 Tune l Brand-X 100 Shot l Walbro 255 l Duals w/ X and Magnapacks l Vette Servo l Transgo S.K. l 30K Cooler l Detroit Tru-Trac l Motive 4.30's l ARP Cap Studs l TA Girdle

  4. #4
    Join Date
    Nov 2006
    Location
    Elk Grove, CA
    Posts
    211
    You can really gain as much as 10hp just from and underdrive??

  5. #5
    Join Date
    Nov 2008
    Location
    Spring, TX
    Posts
    2,228
    Yes you can. I have searched online dyno results and i think hot rod did an article about it. 10 hp to the wheels. Pretty impressive. i did the search a while ago so idk if i can find it again.
    '02 Silvy: Z71 EC Step Side 5.3L Nelson tuned
    2013 GMC Acadia: SLT1 Carbon Black
    1976 Corvette Stingray: Trying to save it, progress is slow.

    ^Ricky's Sweet PS Skilz
    09/21/2010 02:31 <danger_ranger83> I'm not really worried about the looks...I want it to be fast and ugly...bc no one wants to get outrun by something ugly

  6. #6
    Join Date
    Nov 2006
    Location
    Elk Grove, CA
    Posts
    211
    Thats outstanding! Well theres another item to my build list lol

  7. #7
    Join Date
    Nov 2008
    Location
    Spring, TX
    Posts
    2,228
    '02 Silvy: Z71 EC Step Side 5.3L Nelson tuned
    2013 GMC Acadia: SLT1 Carbon Black
    1976 Corvette Stingray: Trying to save it, progress is slow.

    ^Ricky's Sweet PS Skilz
    09/21/2010 02:31 <danger_ranger83> I'm not really worried about the looks...I want it to be fast and ugly...bc no one wants to get outrun by something ugly

  8. #8
    Join Date
    May 2009
    Location
    Plainfield, IL
    Posts
    2,036
    slp has dyno sheets online. They show a stock 6.0, it gained like 8 or something. Since most of our motors are not stock, 10 is about right.
    blown transmissions are about as useful as 97% of the guys on this forum

  9. #9
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    Mike--I purchased the ASP pulleys. I have had them for years and they are great. I got the UD harmonic balancer and the UD alt pulley. At idle, my alt charges a few volts higher than stock. Never had a charging issue, even running my efans and amp + subs...

    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

  10. #10
    Join Date
    May 2008
    Location
    Round Rock, TX
    Posts
    3,069
    I just have the powerbond crank pulley, alt pulley is still stock. I have a system and compressors for Air ride also and haven't had any charging issues.

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