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Thread: 7" crank belt length..and Gains?

  1. #1
    Senior SCH Member
    Join Date
    May 2003
    Posts
    251

    7" crank belt length..and Gains?

    Hey guys I'm stepping up to a 7" crank.
    I'm running a 2.95/6.87 right now and see 11-12psi @ 6k. I'm hoping to pickup a solid 1-2psi and get some more belt grip.

    Also any one run this setup on a 94-95? I know its underdrive also so I'll need a diff length serp. belt...yah i can figure it out, but maybe asking will save me some time.

    Thanks

    Chris
    Stock Blocks are Unbreakable

  2. #2
    Senior SCH Member
    Join Date
    Nov 2003
    Location
    Fort Worth/TX
    Posts
    327
    I run a 3.5/7in and I see around 11-12. So with a 2.95 I would say around 14-15 you will see if the belt doesn't slip.
    89 GT - old combo -AOD, S-trimed, 302, stock short block - 6.67@106 with a 1.60 60ft, 4.10 gears. dyno 474rwhp, best in 1/4 3.55 gears 10.83@128 1.67
    Damn them stock cranks :(
    new comb in the works Dart 331 turbo :D

    98 GT - its a turd, but I like it ;)
    00 F-250 CC PSD 2WD- chip, converter

  3. #3
    Senior SCH Member frdfandc's Avatar
    Join Date
    May 2003
    Location
    Elkton,MD
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    306
    If you are not running a Powerpipe, install one. You will see a solid 2-3 psi increase.

  4. #4
    Senior SCH Member
    Join Date
    May 2003
    Posts
    251
    Thanks guys..ya i have a pp already.
    Stock Blocks are Unbreakable

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