• Welcome to SVTPerformance!

Anyone install a t56 magnum?

Discussion in 'Drivetrain Modification/Discussion' started by liter of cola, May 6, 2016.

  1. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    Wondering what the total cost of throwing in a magnum is with all supporting mods ie clutch, driveshaft, shifter, clutch line plus install.
     
  2. blackbeast12

    blackbeast12 Dr. Frankenstang Established Member

    Messages:
    3,926
    Joined:
    Apr 30, 2012
    Location:
    Delaware
    About $5500 if you do it $7500 if you have it installed, thats not including changing the rear end gears to compensate for the mt-82's lower gear ratios compared to the magnum xl!
     
  3. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    would the stock performance pack 3.73's be good for the t56? The car has a 2.9 whipple putting down 714rwhp and 543rwtq.
     
    Last edited: May 7, 2016
  4. blackbeast12

    blackbeast12 Dr. Frankenstang Established Member

    Messages:
    3,926
    Joined:
    Apr 30, 2012
    Location:
    Delaware
    Yeah 3:73's are good i have 4:10's with a paxton....
     
  5. Flcracker

    Flcracker Member Established Member

    Messages:
    278
    Joined:
    Apr 7, 2012
    Location:
    Miami, FL
    It depends on which T56 Magnum. I have the T56 Magnum XL 2.97 in my 2011 with 3.31 gears, and the setup was perfect until I lost some low end torque with the x pipe. I think that the 2.66 Magnum is better for turbos. Anyway.... I've been thinking about going with a 3.55 gear just to give me a little more pep when putting around. There's no way I would hook with 3.73 gears with my Roush blower. Not sure if any of this helps,given that u have a newer mustang. Anyway... I think 3.31 gears are better with a positive displacement blower like you got. 3.73 or 4.10 for Paxton, Vortec, or Pro Charger.
     
    Last edited: May 7, 2016
  6. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    So would the lower geared t56 be best for the 3.73's? I think its a 2.6. Also unfortunatly its not my car, its my friends car. it's a freakin beast.
     
    Last edited: May 8, 2016
  7. Flcracker

    Flcracker Member Established Member

    Messages:
    278
    Joined:
    Apr 7, 2012
    Location:
    Miami, FL
    I'm pretty certain I remember reading that guys with the 266 magnum end up going with 373 or 410 gears. However, I don't think they had Whipples on top. I think these were centrifugal guys. Search it out more.
     
    Last edited: May 7, 2016
  8. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    Got it, thanks.
     
  9. blackbeast12

    blackbeast12 Dr. Frankenstang Established Member

    Messages:
    3,926
    Joined:
    Apr 30, 2012
    Location:
    Delaware
    I have the 2:97 1st gear with 4:10's which is the equivalent of having 3:31's with the mt-82! Car pulls really hard through all the gears!
     
    Last edited: May 7, 2016
  10. Flcracker

    Flcracker Member Established Member

    Messages:
    278
    Joined:
    Apr 7, 2012
    Location:
    Miami, FL
    I thought it was the 2.66 Magnum with 4.10 gears that equal the mt 82 with 3.31. I'm going to call Tremic on Monday to find out for sure.

    What you're saying doesn't gel with my experience. I have the stock 3.31 gears with my T56 Magnum XL 2.97 and the car accelerates just like it did with the MT – 82 and the same 3.31 gears.
     
    Last edited: May 7, 2016
  11. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    interesting... definitely let me know what you find out. I may call tremec myself as well.
     
  12. blackbeast12

    blackbeast12 Dr. Frankenstang Established Member

    Messages:
    3,926
    Joined:
    Apr 30, 2012
    Location:
    Delaware
    Here is gear ratio comparison between a Tremec With 4:10's vs an mt-82 with 3:31's

    Tremec ratio. Final drive ratio. [email protected] 7500 rpm. [email protected] 80mph.
    1st. 2.97. 12.18. 50.2. 11949.
    2nd. 2.10. 8.61. 71.0. 8448.
    3rd. 1.48. 5.99. 102.2. 5874.
    4th. 1.00. 4.10. 149.1. 4023.
    5th. 0.80. 3.28. 186.4. 3218.
    6th. 063. 2.58. 236.7. 2535.

    Mt-82:
    1st. 3.66. 12.11. 50.5. 11887.
    2nd. 2.43. 8.04. 76.0. 7892.
    3rd. 1.69. 5.59. 109.3. 5489.
    4th. 1.32. 4.37. 140.0. 4287.
    5th. 1.00. 3.31. 184.7. 3248.
    6th. 065. 2.15. 284.2. 2111.

    3:31's are the perfect ratio for a boosted car with an mt-82 and 4:10's are the perfect ratio for a boosted car with a tremec!
     
  13. Flcracker

    Flcracker Member Established Member

    Messages:
    278
    Joined:
    Apr 7, 2012
    Location:
    Miami, FL
    If you have a 2.97 T56 Magnum with a positive displacement blower like the Kenne Bell, Whipple, or Roush and you go 4.10 gears you will not have any traction.
     
  14. kcobra

    kcobra MUSTANG MANIAC Established Member

    Messages:
    1,847
    Joined:
    Aug 13, 2001
    Location:
    Madawaska
    3.73's with 2.97 T56 is perfect. Had 3 cars with this set-up from centri - twin screw. Great gearing and tranny.
     
  15. liter of cola

    liter of cola Member Established Member

    Messages:
    886
    Joined:
    Mar 19, 2015
    Location:
    NYC
    I figured running it with the 3.73's would prolly be best. it may be able to handle 4.10's cuz the front fed whipples have lower torque than most other blowers, but he's gonna try it out with the 3.73's first.

    what about 4.10's with the 2.66 magnum?
     
  16. Flcracker

    Flcracker Member Established Member

    Messages:
    278
    Joined:
    Apr 7, 2012
    Location:
    Miami, FL
    3.31 with the MT82 is not a great drag racing set up for high horse power.
     
  17. whatsup62

    whatsup62 Member Established Member

    Messages:
    110
    Joined:
    Sep 9, 2015
    Location:
    Iowa
    It absolutely is if you are boosted.
     
  18. freddy302

    freddy302 Member Established Member

    Messages:
    38
    Joined:
    Nov 2, 2004
    Location:
    CT
    How much power does the stock 6 speed hold?
     
  19. burke985

    burke985 Active Member Established Member

    Messages:
    1,580
    Joined:
    Oct 5, 2012
    Location:
    Slidell
    What about NA, would 3.73 gears replicate close enough to the stock MT82 gearing on the 2018?
     

Share This Page