C4 vs. C6

Discussion in 'Fox 5.0 Talk' started by 7upstang91, Sep 10, 2009.

  1. 7upstang91 Member

    Member Since:
    May 30, 2008
    Message Count:
    742
    Likes Received:
    0
    Trophy Points:
    16
    I have heard that the C6 can handle more power. But also loses 60rwhp over the C4. Not an automatic guy but my step-brother has a C6 and we wanted to know. The car came with it.
    7upstang91, Sep 10, 2009
    #1

  2. tannerc91gt Advanced Member

    Member Since:
    Mar 29, 2009
    Message Count:
    3,831
    Likes Received:
    8
    Trophy Points:
    68
    Power loss through drivetrain Is percentage based, the c6 tranny is a more stout built trans but im not sure where your getting the 60hp loss info from
    tannerc91gt, Sep 10, 2009
    #2

  3. faststang90 New Member

    Member Since:
    Nov 6, 2007
    Message Count:
    509
    Likes Received:
    0
    Trophy Points:
    0
    yeah i think 60 hp is to hi over the c4 power loss. i was told before that a glide is 18% loss and a 3 speed tranny is about a little more and a aod tranny is 27% loss.
    faststang90, Sep 10, 2009
    #3

  4. Darkwriter77 Resident Ranting Negative Nancy

    Member Since:
    Jul 1, 2005
    Message Count:
    3,483
    Likes Received:
    0
    Trophy Points:
    0
    Damn ... if that's true, then that means my '84 only has about ... 110.5 RWHP. :cry:
    Darkwriter77, Sep 10, 2009
    #4

  5. white 89 GT Member

    Member Since:
    Apr 4, 2003
    Message Count:
    282
    Likes Received:
    0
    Trophy Points:
    16
    Yeah my aod must be killing me, time for a C4. 27% thats a bunch what could I do with that extra 8-10%
    white 89 GT, Sep 11, 2009
    #5

  6. bentley429isBAC Member

    Member Since:
    Jul 24, 2009
    Message Count:
    431
    Likes Received:
    2
    Trophy Points:
    18
    C4's suck.
    bentley429isBAC, Sep 11, 2009
    #6

  7. 90lxcoupe Active Member

    Member Since:
    Oct 8, 2003
    Message Count:
    2,837
    Likes Received:
    6
    Trophy Points:
    48
    27% seems awful high, whered that number come from?
    90lxcoupe, Sep 11, 2009
    #7

  8. white 89 GT Member

    Member Since:
    Apr 4, 2003
    Message Count:
    282
    Likes Received:
    0
    Trophy Points:
    16
    I think 27% is high for a fully rollerized trans, but the AOD does suck up much more hp than most autos.
    I don`t think c4`s suck, I think built correctly they perform very well.
    white 89 GT, Sep 11, 2009
    #8

  9. tannerc91gt Advanced Member

    Member Since:
    Mar 29, 2009
    Message Count:
    3,831
    Likes Received:
    8
    Trophy Points:
    68
    15%-20% seems to be about the generally accepted amount of loss
    tannerc91gt, Sep 11, 2009
    #9

  10. Darkwriter77 Resident Ranting Negative Nancy

    Member Since:
    Jul 1, 2005
    Message Count:
    3,483
    Likes Received:
    0
    Trophy Points:
    0
    Well, if a stock '87-'93 5.0 is rated at 225 HP at the flywheel, what are most folks showing for RWHP on a dyno with an AOD car? (I seem to remember around 190 HP being the norm for stock setup Foxes, but I think those were mostly on T-5 cars... :scratch: )
    Darkwriter77, Sep 11, 2009
    #10

  11. faststang90 New Member

    Member Since:
    Nov 6, 2007
    Message Count:
    509
    Likes Received:
    0
    Trophy Points:
    0
    i dont remember where i got told that. i want to say it was from j&w.
    faststang90, Sep 11, 2009
    #11

  12. bentley429isBAC Member

    Member Since:
    Jul 24, 2009
    Message Count:
    431
    Likes Received:
    2
    Trophy Points:
    18
    They sure do perform great. Then they break all the time. Anyways what are you doing with the trans whats in front of it, and do you want a brake?
    bentley429isBAC, Sep 11, 2009
    #12

  13. white 89 GT Member

    Member Since:
    Apr 4, 2003
    Message Count:
    282
    Likes Received:
    0
    Trophy Points:
    16
    If built right it will last, some upgrades are a must like the #9 bearing needs to be converted to roller and I want to use the broader trans 2.92 first gear planet.
    No brake for me, I just foot brake it @ 1500 rpm and stab it. As for the AOD thats in my car now a buddy in texas wants it.
    white 89 GT, Sep 12, 2009
    #13

  14. 7upstang91 Member

    Member Since:
    May 30, 2008
    Message Count:
    742
    Likes Received:
    0
    Trophy Points:
    16
    So the C6 is better than the C4?
    7upstang91, Sep 13, 2009
    #14

  15. bentley429isBAC Member

    Member Since:
    Jul 24, 2009
    Message Count:
    431
    Likes Received:
    2
    Trophy Points:
    18
    YES. Put a TH400 in it.
    bentley429isBAC, Sep 14, 2009
    #15

  16. ChromdOutDubs New Member

    Member Since:
    Sep 2, 2005
    Message Count:
    275
    Likes Received:
    0
    Trophy Points:
    0
    I hated my C6, fully built with a custom Brake from JW. Broke it three times in a row, three different parts... I end up spending big money on my Mighty Mite C4 from Dynamic and haven't had a problem with their C4. Iv heard that the C6 pulls about 5-8% more drive train loss than the C4. After swapping from the C6 to the C4 it seemed like the C6 weighed 30lbs. more too.

    Just my 2 cents...

    -AJ
    ChromdOutDubs, Sep 16, 2009
    #16

Share This Page