• Welcome to SVTPerformance!

Soo happy!! 3.90's are on!

Discussion in 'Driveline' started by combatstang, Dec 21, 2004.

  1. combatstang

    combatstang BoOsTaHoLiC Established Member

    Messages:
    1,299
    Joined:
    Mar 7, 2004
    Location:
    So Cal
    all i have to say.. is It feels like i put on a lower pulley and gained 100X's of Torque..

    car pulls soo hard.. im getting wheel hop in 2nd now.. with the nittos


    well it was 11oclock at nite and cold as hell...

    I was a big spectic when it came down to this... but u know what i said why not.. and did it.. and made a awesome descion..


    dont knock it till u try it.. dont hate it till you drive a car with it!!!

    driving a car with gears and being in a car with gears(projectzero's) made me think twice about keeping it stock.. his car pulls really hard with the 410s..

    Lovin it!!

    MArc
     
  2. SWEET03COBRA

    SWEET03COBRA damn this wheel hop! Established Member

    Messages:
    3,001
    Joined:
    Dec 24, 2003
    Location:
    Great Falls, Mt
    that is awesome!! When do you think you will have some track times to see if it helped?
     
  3. combatstang

    combatstang BoOsTaHoLiC Established Member

    Messages:
    1,299
    Joined:
    Mar 7, 2004
    Location:
    So Cal
    soon.. very soon.. i plan on going next saturday... i know my car will trap higher and my et will be lower... as long as the conditions are good.. i have no dought..

    all i need is traction.. and with my nittos hot.. i will get it..


    Marc
     
  4. 03DOHC

    03DOHC Moderator Established Member

    Messages:
    26,790
    Joined:
    Jul 7, 2002
    Location:
    SF Bay Area
    Did you stay with the factory trac-lok?
     
  5. SWEET03COBRA

    SWEET03COBRA damn this wheel hop! Established Member

    Messages:
    3,001
    Joined:
    Dec 24, 2003
    Location:
    Great Falls, Mt
    Hell yeah, let me know if you would please. I'm think of doing that myself. Good luck brother, how does she roll on the freeway still? I got ET Streets so traction isn't a issue for me.
     
  6. HawkMech

    HawkMech Wildhorses Rule!!! Established Member

    Messages:
    222
    Joined:
    Dec 19, 2004
    Location:
    Clarksville, TN
    I've been thinkng about putting 3.73's in mine, but now after reading your post a couple of others, I'm thinking that I might end up using 3.90's.
     
  7. SWEET03COBRA

    SWEET03COBRA damn this wheel hop! Established Member

    Messages:
    3,001
    Joined:
    Dec 24, 2003
    Location:
    Great Falls, Mt
    What kind of rpms do you pull cruising at 75 in 6th?
     
  8. Juiced-03

    Juiced-03 Active Member Established Member

    Messages:
    8,885
    Joined:
    May 22, 2003
    Location:
    Cali
    where did you get them installed?
     
  9. combatstang

    combatstang BoOsTaHoLiC Established Member

    Messages:
    1,299
    Joined:
    Mar 7, 2004
    Location:
    So Cal
    installed at X2c motorsports..

    my highway rpms doesnt feel anydifferent and i cant tell for sure because my speedo is off.. but i was going about 80mph the whole way home, and didnt seem like it changed much..


    Marc
     
  10. 7168548

    7168548 New Member Established Member

    Messages:
    643
    Joined:
    Dec 3, 2003
    Location:
    SO CAL
    Marc you *ucker. You need to let me drive your car. I think I'll still win in a race though. :D
     
  11. Dunn

    Dunn Active Member Established Member

    Messages:
    285
    Joined:
    Nov 20, 2004
    Location:
    Raleigh, NC
    Now, I have heard else where. 4.10's aren't optimal for these cars? I know in Fbodies, they are unreal, and help the car past the traps right at redline in 4th...what about these cars?
     
  12. primo

    primo New Member

    Messages:
    1,902
    Joined:
    Feb 21, 2004
    Location:
    BFE
    I hate how I just shift into 4th before the traps. Thats ghey. 3.90's here I come!
     
  13. primo

    primo New Member

    Messages:
    1,902
    Joined:
    Feb 21, 2004
    Location:
    BFE
    Also, it might sound funny, but since gears are a torque multiplier, it's similar to adding a lower pulley without the extra strain on the eaton. Granted, you are not making any more power, but your wheels will feel the gobs of torque. I think of it like this. Get on a 10 speed and try to pedal in 10th gear. Hard right? now try to pedal in 5th. It's much easier on you, less strain, and less calories are consumed. Senario #2. Put Lance Armstrong on the line in 10th gear. Then put string bean billy in 5th gear. The starting gun fires, I bet string bean billy pulls a couple "bike lengths" on Lance off the line. Thats what a gear change does, puts you in 5th gear on a 10 speed so to speak.
     
  14. WS6JJP

    WS6JJP Corn juice powered Established Member

    Messages:
    1,603
    Joined:
    Sep 7, 2003
    Location:
    Ohio
    how about when you're hoping not to hit the rev limiter in 4th and almost having to shift into 5th before the traps....that sucks too
     
  15. sambandit

    sambandit SVT God Established Member

    Messages:
    6,552
    Joined:
    Mar 11, 2003
    Location:
    Castle Rock, CO
    Cool man, let us know about those track results! I think that would be a great mod for me at elevation since I trap under 120 here anyway.
     
  16. Black2003Cobra

    Black2003Cobra New Member Established Member

    Messages:
    2,218
    Joined:
    Mar 12, 2002
    Location:
    NY
    Yup. 3.90's increase the torque at the rear wheels by almost 10% compared to the stock gear! (4.10's take it up by a little over 15%) With stock height tires, top speed (at 6500 rpm) should be around 127 mph w/ the 3.90's. Enjoy!
     
  17. JTSVT

    JTSVT Equal Opportunity AzzKker Established Member

    Messages:
    567
    Joined:
    Aug 21, 2004
    Location:
    TX
    Hmmm I had contemplated 373's but now 390 sound nice....Id like to see how 410's feel in our cars......Good luck at the track cant wait to see your #'s----JT
     
  18. primo

    primo New Member

    Messages:
    1,902
    Joined:
    Feb 21, 2004
    Location:
    BFE
    Easy fix, run a taller tire! :rockon:
     
  19. BADASS03SVT

    BADASS03SVT Well-Known Member Established Member

    Messages:
    12,988
    Joined:
    Oct 25, 2003
    Location:
    MA
    see....have fun! :rockon:
     
  20. BADASS03SVT

    BADASS03SVT Well-Known Member Established Member

    Messages:
    12,988
    Joined:
    Oct 25, 2003
    Location:
    MA
    like someone already said (i think) u need ot be trapping over 125 before u lose gear with the 3.90's...AWESOME gear..had mine in almost a year now
     

Share This Page