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Thread: BadAss SRT-Z - 2.4L / A568 - Update!!!

  1. #2501
    Garrett booster
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Hells yeah. Take the Shadow to the RSDs with the "Boom" nitrous kit... I'll bring the CSX and we can leave the motors there

  2. #2502
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    LOL... No RSD this week, too much stuff to do before the gathering this weekend.

    As for the next trans... I have a couple A568's, anyone got some good selection criteria?

    No, I do not want to take them all apart, so it will be from the outside. When I select one, yes it will come apart. They all were runners when pulled, none of them have particularly low miles, think one from Jackson has really high miles but he said it was one of the nicest shifting he's driven... Thinking about looking at:

    -Input shaft spline wear
    -Input shaft end play
    -rotational torue
    -rotate in each gear, listen for noise

    JT
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  3. #2503
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    I'd take them both apart and use the best pieces of each.

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
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    88 Shelby Z 13.5 - been in storage for 7+ years
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  4. #2504
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    just put in a automatic and go really fast

  5. #2505
    turbo addict Pat's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by 16valvecharger View Post
    just put in a automatic and go really fast
    Or accept that calling it an unlightened street car with busted transmission is less fun than lightening it, going faster and calling it a race car that works. :-)

  6. #2506
    turbo addict Turbo Mopar Contributor
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Pat View Post
    Or accept that calling it an unlightened street car with busted transmission is less fun than lightening it, going faster and calling it a race car that works. :-)
    Oh no you di'en't!

  7. #2507
    turbo addict Pat's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Shadow View Post
    Oh no you di'en't!
    Couldn't resist! LOL!

  8. #2508
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Reeves View Post
    I'd take them both apart and use the best pieces of each.
    Thought about that...

    Quote Originally Posted by 16valvecharger View Post
    just put in a automatic and go really fast
    I'm sure it would go faster, but I like rowing... would be bored driving an auto unless it was Slowe-Fast™ (yes, just TM'ed that )

    Quote Originally Posted by Pat View Post
    Or accept that calling it an unlightened street car with busted transmission is less fun than lightening it, going faster and calling it a race car that works. :-)
    Ouch! LOL... Yeah, this coming from the guy that called me out before SDAC-22 like he was gonna dish it out and even tho my heavy street car only made one pass, it was still quicker than his race car

    JT
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  9. #2509
    turbo addict Pat's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by BadAssPerformance View Post
    Ouch! LOL... Yeah, this coming from the guy that called me out before SDAC-22 like he was gonna dish it out and even tho my heavy street car only made one pass, it was still quicker than his race car
    Ha ha...I admit, you were screaming your first pass but I was definitely quicker on the 2nd pass!

  10. #2510
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Pat View Post
    Ha ha...I admit, you were screaming your first pass but I was definitely quicker on the 2nd pass!
    LOL, yeah, if we raced heads up, you MAY have one unless some bits from my drivetrain hit you or your car

    JT
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  11. #2511
    turbo addict Pat's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Joking aside, did you tear apart the most recent trans failure? Any idea on what gave out? At the rate your popping transmissions, I fear that the weight/torque has found the useable limit of our manuals and that without identifying the failure point and strengthening it, you'll be doing the same thing next run on a sticky track.

  12. #2512
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Yeah, it would be good to know what broke...

    Ya know, this thing was noisy evertime I drove it anywhere, had a stright cut gear kinda whine to it and having been apart so many times, I'm surprized it lasted this long.

    JT
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  13. #2513
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    I think this is like Reeves, when he cracked the case in half. (maybe more than half even) Everyone was thinking this was "the limit" I was just thinking he wore out the trans. lol

    JT, when you pulled the trans apart where you just fixing what you saw and back together, or were you checking all tolerences ect every time it was apart?

  14. #2514
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Shadow View Post
    I think this is like Reeves, when he cracked the case in half. (maybe more than half even) Everyone was thinking this was "the limit" I was just thinking he wore out the trans. lol
    Which time? when the gear teeth fell off the 525 gears (root cause) or the time before that?

    JT, when you pulled the trans apart where you just fixing what you saw and back together, or were you checking all tolerences ect every time it was apart?
    Nope... LOL no tolerances or torques measured. Running on hopes and dreams!

    This last time with reverse, pulled it all out the end (in the car) emptied 2 cans of brake cleaner to clean it out and till I saw clear come out the drain hole.

    Put in different input shaft, reverse idler, reverse/3/4 slider, bearing plate (with used bearings that were in it), bearing back up plate and bolts. Input shaft felt tighter than one that came out...

    Swapped my original bronze fork pads out and Lengel's new ones in.

    Sight unseen, my thought on a potential root causes... input shaft fragged, or didnt get all the teeth out of it from reverse, one got sucked into the wrong spot

    JT
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  15. #2515
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    Pull the top off and look at the dog teeth.
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  16. #2516
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by BadAssPerformance View Post

    Nope... LOL no tolerances or torques measured. Running on hopes and dreams!

    This last time with reverse, pulled it all out the end (in the car) emptied 2 cans of brake cleaner to clean it out and till I saw clear come out the drain hole.

    Put in different input shaft, reverse idler, reverse/3/4 slider, bearing plate (with used bearings that were in it), bearing back up plate and bolts. Input shaft felt tighter than one that came out...

    Swapped my original bronze fork pads out and Lengel's new ones in.

    Sight unseen, my thought on a potential root causes... input shaft fragged, or didnt get all the teeth out of it from reverse, one got sucked into the wrong spot
    Right, so I'm thinking just well used tranny. Not saying the heavier Tona isn't wearing them out faster, I'm sure it is, just don't think they're done yet (more hoping than thinking as always)

    Gotta say I'm blown away by how well these trannies stand up so far, specially the input shafts! (knock on wood)

  17. #2517
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by pat View Post
    or accept that calling it an unlightened street car with busted transmission is less fun than lightening it, going faster and calling it a race car that works. :-)
    oh snap!

  18. #2518
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by Shadow View Post
    Right, so I'm thinking just well used tranny. Not saying the heavier Tona isn't wearing them out faster, I'm sure it is, just don't think they're done yet (more hoping than thinking as always)

    Gotta say I'm blown away by how well these trannies stand up so far, specially the input shafts! (knock on wood)
    Yeah, I'm hoping they are not done yet either!

    JT
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  19. #2519
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    I should be able to add something to the pot next year as I expect the power to jump up quite a bit with the new snail. I would be interested to see what broke JT. From most of the failures I've seen I've come to the conclusion the most damaging part of the tranny are the helical gears trying to move the gear set axially. I've been thinking of some possible ways to make a "girdle" so to speak and stiffen up the outer bearing plate but it's still early. As for mine, small spline and missing half the synchro teeth but no where near the passes you have.

  20. #2520
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: BadAss SRT-Z - 2.4L / A568 - Update!!!

    Quote Originally Posted by turboshad View Post
    From most of the failures I've seen I've come to the conclusion the most damaging part of the tranny are the helical gears trying to move the gear set axially. I've been thinking of some possible ways to make a "girdle" so to speak and stiffen up the outer bearing plate but it's still early.
    Totally agree. I'm bending the bearing retainer plate at the end of my 555 because of this helical gear unwind. It's bending it enough that it actually is causing it to have a memory. I can set my input shaft preload, race a few times, take it out and the input shaft will need .010" to .020" or more shims to set the pre-load again. At first, I was straigtening the plate and re-installing, but now I decided to leave it bent.



    I'm trying to source a 40 rockwell plate or so to try out. Something less bendable, but hopefully not too hard that it breaks.

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

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