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The Official Centrifugal Pulley/Boost Combo Thread!!!

Discussion in 'The Blower Bistro' started by 98 Saleen Cobra, Mar 21, 2012.

  1. JetmechF16

    JetmechF16 Under Pressure Established Member

    Messages:
    3,778
    Joined:
    Sep 14, 2006
    Location:
    Huffman, TX
    Photo Jan 12, 14 04 10.jpg
     
    1998SVTCOBRA and DSG2003Mach1 like this.
  2. 04YellowGT

    04YellowGT Active Member Established Member

    Messages:
    617
    Joined:
    Sep 29, 2005
    Location:
    Indiana
    2011 Mustang GT
    1. 4V Stock
    2. ProCharger P1X Stage II Intercooled
    3. Stock bore and stroke, 11:1 compression
    4. Stock Heads
    5. Stock Cams
    6. Stock
    7. Intercooled Air/Air
    8. MBRP LT Headers, MBRP Catted H, MBRP Axle Back
    9. 4.00" pulley, Stock 7.65" Crank Pulley
    10. 11lbs @ 7200RPM
    11. N/A
    12. 644 RWHP / 466 RWTQ @ 7200 rpm
     
    rpmchi86 likes this.
  3. mcobra01

    mcobra01 Member Established Member

    Messages:
    293
    Joined:
    Dec 15, 2002
    Location:
    los angeles
    2001 cobra


    1. 4V
    2. D1sc
    3. Stock compression
    4. Stage 2 C heads
    5. Stock
    6. Stock intake
    7. Stage 1 prochager a/a
    8. Jba headers, 2.5 Magnaflow xpipe and mufflers
    9. 3.2 pulley stock crank
    10. 11 lbs
    11. Power pipe
    12. 512hp 446 torque 91 octane
     
  4. mcobra01

    mcobra01 Member Established Member

    Messages:
    293
    Joined:
    Dec 15, 2002
    Location:
    los angeles
    2001 Cobra new combo


    1. 4V
    2. F1a
    3. Stock
    4. Stage 2 C heads
    5. Stock
    6. Stock intake w/spacer
    7. Prochager race intercooler
    8. Jba headers, 2.5 full magnaflow exhaust
    9. 4” pulley and 3.4 pulley
    10. 20 lbs and 24 lbs
    11. Powerpipe
    12. 646hp 555 torque & 712hp 630 torque both on e85

    Tuner mentioned my powerpipe is a restriction on the 3.4 pulley
     
  5. JetmechF16

    JetmechF16 Under Pressure Established Member

    Messages:
    3,778
    Joined:
    Sep 14, 2006
    Location:
    Huffman, TX
    1. 4V, stock Cobra C-heads with Brian Tooley springs
    2. Procharger F-1A-94
    3. 5.3 Boss big bore stroker 9.8-1 cr
    4. Stock C-heads
    5. Stock 2004 Cobra cams
    6. Sullivan lower, HPP custom forward-facing upper
    7. A/A Treadstone TRST9 intercooler
    8. JBA 1-5/8 midlengths, JBA 3'' h-pipe w/resonators, JBA 3'' catback w/4'' tips
    9. Stock diameter ATI damper w/HOB 7.65" 8-rib crank pulley, 3.875'' blower pulley
    10. 18 psi @ 6400 rpm
    11. Custom fabbed piping
    12. 775/680 at 21 degrees timing

    I really need cams, the stockers are holding it back in the upper rpms.
     
    Last edited: Jul 19, 2020
    sur_real1 and mysteed like this.
  6. therealshocker

    therealshocker Member Established Member

    Messages:
    108
    Joined:
    Jan 18, 2007
    Location:
    Memphis, TN
    99 Cobra

    1. 4V stock displacement
    2. F1A
    3. 9.7:1
    4. Stock heads
    5. Bullet Racing custom blower cams, PAC springs/retainers
    6. Stock intake
    7. Treadstone 1245-28 Air to Air intercooler
    8. American Racing 1 3/4" long tubes, 3" x-pipe, 3" Magnapack catback
    9. Using House of Boost renegade bracket setup (Stock diameter ATI damper, 8" crank pulley for blower), 4.385'' 8-rib Griptec blower pulley
    10. Seeing 20-21psi boost
    11. Custom fabbed 3.5" piping
    12. 902/810 at 16.5* timing on E85 (Perfect dyno weather, started with a negative DA, and stayed around 0)

    Ran out of injector (FIC1000 as I was planning to be on 93 oct when build started) and started going lean around 6500rpm, stopped pulls at 6800. Switching to FIC1300 and will try again.

    Engine-Bay.jpg
    Dyno-Sheet.jpg
     
  7. milktasd2

    milktasd2 Active Member Established Member

    Messages:
    928
    Joined:
    May 2, 2004
    Location:
    Jackson,Ms
    Your numbers are giving me goose bumps. I’m so ready to see what mine will do if it will ever get finished.
     
    therealshocker likes this.
  8. 98 Saleen Cobra

    98 Saleen Cobra Authorized Vendor Authorized Vendor

    Messages:
    19,017
    Joined:
    Feb 28, 2007
    Well I won't have updated number for a dyno, but I did throw a 2.90" pulley on the car.. It was going 124's in the 1/8th with a 3.33" upper and 19psi.. See what it'll do on the 2.90"
     
    JetmechF16 likes this.
  9. 01yellercobra

    01yellercobra AKA slo984now Established Member

    Messages:
    16,278
    Joined:
    Oct 5, 2005
    Location:
    San Diego
    This really makes me wish I had my 01 dynoed. I had my F1A at 19psi with similar timing. But I had a ported intake and a big bore stroker.
     
  10. 96dreamer

    96dreamer Well-Known Member Established Member

    Messages:
    1,578
    Joined:
    Feb 22, 2007
    Location:
    St.Louis
    1. 4V c heads
    2. novi2000
    3. Stock stroke, Flat top .010 [email protected] 10.65:1
    4. Hand ported, BTR springs
    5. Stock 96 cobra
    6. Ported mach1 lower, C lower to B upper adapter and stock B upper
    7. TR1245 A/A 3.0" piping
    8. BBK 1-5/8 to 2.5" collector, o/r x pipe Borla catback
    9. 3.25 blower pulley, IW 10% od(7.25" crank), 114.5" Dayco gold belt
    10. 13.8lbs at 6000 rpm
    11. 4" to fender well
    12. ?? never been on the Dyno. Made 325 NA, Thinking around 600hp.

    Still running the stock hard lines from the tank to regulator. Fuel pressure starts dropping off ~5500 rpm and by 6k AFR's get uncomfortable high.
     

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