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Thread: Possible A413/31TH Billet Input Shaft Group Buy

  1. #181
    Supporting Member Turbo Mopar Contributor A.J.'s Avatar
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by Ondonti View Post
    Since you gave up the lockup, I guess your next converter could be smaller

    Were you only using it on the freeway?
    Yes it could be but I stuck with the bigger converter. It has a bullet cover and billet is better, right? I took the larger one out to have it modified so in the mean time I was driving around with the smaller one. The smaller one had a slightly higher stall to it. Just accelerating like I did with the larger converter my RPMs were higher and it sounded like I was trying to race everybody. I was glad I got my larger one back in because it has a lower stall. I don't know why the smaller one has a higher stall now, I had the larger one built based off of the smaller one. Maybe it was always higher but I haven't used it for awhile so I didn't notice before.

    In Megasquirt I had the lock-up come on at 45 mph and shut off at anything above 0"HG or in boost. Most streets here in AZ are 45 mph and I tend to drive above that so my lock-up was usually on, in the city or on the highway.
    <a href=http://s42.photobucket.com/user/thebest4/media/SRT-4/IMG_3442_zps1ebchuzf.jpg.html target=_blank rel=nofollow><a href=http://i42.photobucket.com/albums/e301/thebest4/SRT-4/IMG_3442_zps1ebchuzf.jpg target=_blank rel=nofollow>http://i42.photobucket.com/albums/e3...ps1ebchuzf.jpg</a></a>

  2. #182
    Supporting Member Turbo Mopar Contributor Ondonti's Avatar
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by A.J. View Post
    Yes it could be but I stuck with the bigger converter. It has a bullet cover and billet is better, right? I took the larger one out to have it modified so in the mean time I was driving around with the smaller one. The smaller one had a slightly higher stall to it. Just accelerating like I did with the larger converter my RPMs were higher and it sounded like I was trying to race everybody. I was glad I got my larger one back in because it has a lower stall. I don't know why the smaller one has a higher stall now, I had the larger one built based off of the smaller one. Maybe it was always higher but I haven't used it for awhile so I didn't notice before.

    In Megasquirt I had the lock-up come on at 45 mph and shut off at anything above 0"HG or in boost. Most streets here in AZ are 45 mph and I tend to drive above that so my lock-up was usually on, in the city or on the highway.
    Would be nice to keep that lockup. My 6bt 47re locks at 45...and is annoying in 40-50mph traffic. I do appreciate lockup because often the truck would instead be stalling at 1950rpms whenever under decent load. A gas engine at 3500-4000 all the time up mild hills, yuck.
    Brent
    GREAT DEPRESSION RACING
    1992 Duster 3.0 The Junkyard- Now - Megasquirt II/Extra. OEM 10:1 3.0 n/a.
    - Old - 11.5@125 22psi $90 Stock 3.0 Junk Motor - 516whp 519wtq 20psi 91 oct built 3.0 stock n/a computer
    1994 Spirit 3.0 - 12.3@113 15 psi - Daily Holset He341 280whp 304ft/lb @10psi
    1994 Spirit 3.0 a670 - Wife's - Disassembled
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    1993 Spirit 3.0 E.S. 41TE
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    1990 Lebaron Coupe 2.5 T1 31TH
    1981 Starlet KP61 Potential driver, 1981 Starlet KP61 Parts, 1983 Starlet KP61 Drag
    1998 Dodge 12v Cummins 47re 4x4 4dr longbed

  3. #183
    Supporting Member Turbo Mopar Contributor A.J.'s Avatar
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by Ondonti View Post
    My 6bt 47re locks at 45...and is annoying in 40-50mph traffic.
    I ran into that problem too. So I have a three-way switch on my vehicles with lock-up. One position is the computer control on or off, next position is it's off all the time, and third position is I turn it on and it's on all the time. That way depending upon the situation I can have it on or off.
    <a href=http://s42.photobucket.com/user/thebest4/media/SRT-4/IMG_3442_zps1ebchuzf.jpg.html target=_blank rel=nofollow><a href=http://i42.photobucket.com/albums/e301/thebest4/SRT-4/IMG_3442_zps1ebchuzf.jpg target=_blank rel=nofollow>http://i42.photobucket.com/albums/e3...ps1ebchuzf.jpg</a></a>

  4. #184
    Garrett booster
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by Ondonti View Post
    I would like to express my concern over how different these two shafts are.
    The shorter shafts from Dakota/boots were made by a different person, not from Donato, according to Dakota.

    I couldn't fit 2 roto-clips on the shaft after installing either. I settled on using 1 and a half clips. A half clip will still not come off and will take up the extra space, if push out is a concern. Mine from Dakota is such a tight heat/press fit, I doubt it'll move in the first place, but still feel better with the thicker 1.5 clips.

  5. #185
    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by guhfluh View Post
    The shorter shafts from Dakota/boots were made by a different person, not from Donato, according to Dakota.

    I couldn't fit 2 roto-clips on the shaft after installing either. I settled on using 1 and a half clips. A half clip will still not come off and will take up the extra space, if push out is a concern. Mine from Dakota is such a tight heat/press fit, I doubt it'll move in the first place, but still feel better with the thicker 1.5 clips.
    Thank you for sharing this info.
    Wayne H.

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  6. #186
    Hybrid booster
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    Re: Possible A413/31TH Billet Input Shaft Group Buy


  7. #187
    Garrett booster
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    Quote Originally Posted by A.J. View Post
    I am running the 31TH mated to a 2.4 in the van. I'm running a A413 mated to a 2.5 in my wagon. I'm going to discuss the 31TH in my van.

    The converter in the van is actually a 10.5" converter out of a 3.3/3.8 Caravan with a 41TE. I had to go 10.5" because I was blowing the lock-up out of the 9.5" converter. I was not boosting in lock-up. The converter flexes too much and would blow out the seal in it. They don't make a billet cover for the 9.5" so I had to go 10.5" I had to drill new holes in my flex plate to use the 10.5" because the bolt pattern is wider. Suncoast in Florida built my 10.5" converter and it's a 3500 stall speed. I love it. I didn't want to pay an extra $100 in round-trip shipping so I had Hughes in Phoenix modify my converter to accept the new billet inputs shafts and told them to eliminate the lock-up. I haven't installed it yet so I don't know how good of a job they did. I only know my shaft spines into it fine.
    I used to have a 8" or so billet lockup converter, Kia based I believe, built at Pat's Transmission in PA. Steve Lockett had it made back then. It supposedly held for him at around 500hp. I never got it to work correctly. I wish we could still get them, and a billet lockup shaft would be great. Just saying that a billet cover and billet piston converter can be had, I guess.

  8. #188
    Hybrid booster
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    Re: Possible A413/31TH Billet Input Shaft Group Buy

    if anyone that bought one of these or bought an extra is looking to sell, let me know, i hooked up a friend with the one i got with the thought that i'd be able to dig one up to replace it since he is moving along quite a bit faster with his automatic than i am with mine

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