Luillo's 2013 Shelby Build thread

Discussion in '2007+ Mustang GT500 Tech' started by luillo, Dec 12, 2020.

  1. luillo

    luillo forum member

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    This car is a beast now. I just played a little bit with a Hellcat and completely SMOKED his ass in 2nd gear pull and 3rd next. The guy and his girlfriend slowed down and pulled their other set of keys saying that he wasn't riding with the red key. I told my wife to shout that we only have ONE key and is all out 100% or non. We all laughed but I think he knew the extra 200 HP might of not been enough. I pulled like 2-3 cars by the time i was shifting into 3rd gear on street tires.

    I cant not imagine once i finish my rear end with 3.73 instead of the 4.10s i was planning and put some good wide sticky tires.
     
    crjackson2134 likes this.
  2. LarryJM

    LarryJM forum member

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    I test drove a black key Hellcat and they are no different then a 4500 lbs Scat Pack. Roadkill had one with the 1320 wide body version. It was doing mid 13's Demon parts and all. I like Roadkill as those guys remind me of me when I was 16 and my first car.
     
  3. luillo

    luillo forum member

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    Yeah, I’m not too familiar with Mopar but I can’t wait to have my car ready for some 1/8 mile fun and test against any of those cars available at the track. Almost all the owners I have meet they hype the car too much but non of them want to play when possible.

    Once I have the rear end, transmission, wheels and tires I will see how they stand against mine


    Sent from my iPhone using Tapatalk
     
  4. Pentalab

    Pentalab forum member

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    What do you mean by 8.8 built rear end, yet using a 9" housing ?
    The Eaton 8.8" Tru-trac LSD comes in 2 x versions, normal, and HD. The normal version comes with 3 x PINION side gears ( 3 per side). Normal version uses 31 spline axles.

    The HD version uses 4 x (FOUR) PINION side gears (4 x per side). The LSD box is also heavier duty. The HD version is used when the 60' times are down around 1.4 seconds. The HD version HAS to use 33 spline axles..and you can only get those from either Moser...or Strange Engineering. The story I got was the Strange Engineering 33 spline axles are slightly stronger..and also slightly cheaper.

    VMP in Florida sells both versions of the tru-trac.
    https://www.vmpperformance.com/Eaton-31-Spline-TrueTrac-Differential-for-05-14-8.8-solid-axle

    https://www.vmpperformance.com/Eaton-33-Spline-TrueTrac-Differential-for-05-14-8.8-BUILT-solid-axle

    (oem axles are 31 spline)
     
  5. luillo

    luillo forum member

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    Thanks for that info. I have always been confused because it looked like there was 2 trutracs with different prices but I never could find in-depth info.

    My 8.8 housing has 9” ends welded.


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  6. Pentalab

    Pentalab forum member

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    Considering your power dif
    For your drag race application, and the amount of rwhp / tq you have, and sticky tires, the meager price difference between the 2 x versions of the tru-trac is a bargain. $729.00 - $584.93 = $144.07

    That will probably be the best $144.07 you will have spent.

    Just remember, with either version, use 75W-140 dino oil... like Lucas etc. NO synthetic, and NO friction modifiers.

    Another item worth having is a catch can for the rear axle. Without it, you will be puking oil out the overflow vent.

    I used one of these on my 2010 GT. https://bobsmachine.com/product/mustang-2005-14-axle-reservoir-kr-style/

    On a 2 post lift, with all 4 x wheels dangling down, there is plenty of slack on the supplied interconnecting hose. Expensive, but it's built like a tank, and all heliarc welded.
     
  7. luillo

    luillo forum member

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    That’s the tank I am planing to buy. Currently I bought the 31 spline kit lethal sell with the 9” ends. I got the rear end with the 9” welded already and the axels from a friend. I thought about upgrading but I guess I will once I blow this set of axles, lol.


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