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Thread: Recommendations for Stall Speed on Torque Converter

  1. #1
    Road Warrior Kodachrome Wolf's Avatar
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    Default Recommendations for Stall Speed on Torque Converter

    Essentially as the title states, whatís roughly the best estimate for a regularly driven car with the HO setup? Iíve seen numbers as high as 3000, which sounds like itíll hurt economy even more than normal.

    I know the factory AOD converter stalls around 1600-1800, and makes the car feel numb, but I expected that. Since mine has to come out, now is a good time to try and rectify that.

    Does a 2200-2500 stall converter sound adequate in a car our weight, or do I need to shoot a touch higher? Iíd like to keep a lock up converter for fuel economy, but I donít want to also wind up in a situation where the shift from 2-3 breaks the direct input shaft under WOT conditions.

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    P31 Pursuit Car Brown_Muscle's Avatar
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    The HO cam gets started around 2500rpm, so i think you are right in the ballpark with a 2200-2500 stall converter. Since it's not just a race car, i personally wouldn't go above that. Unless you got stuck with the short straw, your input shaft should be just fine with a stock HO motor.
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

  3. #3
    I'm an air-conditioned gypsy gadget73's Avatar
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    2500 is about right for an HO cam. No point in making it much higher, you'd just be wasting power.

    Something that I found really made a difference to extend the low rpm torque was a ported lower intake. I used a Holley SystemMax 1 but its basically the same as a ported stock lower. Uses the stock upper intake. It evens out the airflow into the cylinders and made a much bigger difference on an otherwise dead stock HO than I'd have ever believed. You may get similar results out of a stock Explorer intake, I don't know.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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    Road Warrior Kodachrome Wolf's Avatar
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    Thanks y'all for confirming on that.

    Now I see there's plenty of options out there. Obviously I'm not gonna shoot for some eBay special to figure out how quick it doesn't work.

    Any thoughts on this? https://www.transdepot.net/tdaod2500lu

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    P31 Pursuit Car Brown_Muscle's Avatar
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    That was one i was looking at too. The transdepo in general doesnt have good reviews on its transmissions...however IDK how that compares to the quality of its parts. It is nice that it is brazed (i see a lot of B&M's are not)
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

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    P31 Pursuit Car Brown_Muscle's Avatar
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    Also, keep in mind that the HO motor doesn’t make a ton of power, so you will probably be at the lower end of the stall for that
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

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    Road Warrior Kodachrome Wolf's Avatar
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    Quote Originally Posted by Brown_Muscle View Post
    That was one i was looking at too. The transdepo in general doesnt have good reviews on its transmissions...however IDK how that compares to the quality of its parts. It is nice that it is brazed (i see a lot of B&M's are not)
    Yeah, it took some hunting to get some info on the people themselves, but couldn’t find much on their converters.

    Someone on the CVN Discord pointed me towards Roadrunner Converters. I picked up their 2200-2600 Stall Converter instead. Seems they have pretty favorable reviews all around. They also have higher stall 10” models for AOD, but I figure I’ll be okay with one that’s getting onto the power band, even if it’s at the threshold.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 + September 2019 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (222K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  8. #8
    I'm an air-conditioned gypsy gadget73's Avatar
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    just make sure you match it with your input shaft config. Need the 2 shaft setup unless the trans has been modified. If you're going to a non-lockup type you'll want more trans cooler too. That page doesn't give quite enough info to know exactly what it is, but if you talk to the guys that sell it they ought to know what you're talking about. For a street / DD type car I'd probably retain the lockup.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  9. #9
    P31 Pursuit Car Brown_Muscle's Avatar
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    Quote Originally Posted by Kodachrome Wolf View Post
    Yeah, it took some hunting to get some info on the people themselves, but couldn’t find much on their converters.

    Someone on the CVN Discord pointed me towards Roadrunner Converters. I picked up their 2200-2600 Stall Converter instead. Seems they have pretty favorable reviews all around. They also have higher stall 10” models for AOD, but I figure I’ll be okay with one that’s getting onto the power band, even if it’s at the threshold.
    The Roadrunner is certainly affordable- but almost no info included with it. If you are able to find anything more about it, it would certainly help
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

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    Road Warrior Kodachrome Wolf's Avatar
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    I guess I'll know whenever it shows up. I'll look and see if it has the three splined sections inside compared to the non-locker two spline ones.

    Either I have made a timely (and costly) ordering mistake, or the correct option I'm needing.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 + September 2019 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (222K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

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    P31 Pursuit Car Brown_Muscle's Avatar
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    Yeah if it comes with all the info on a paper, and you can post it up, i'd greatly appreciate it! I'm currently leaning towards this converter: http://www.edgeracingconverters.com/...d-aod-p-1.html
    -Phil



    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

  12. #12
    Road Warrior Kodachrome Wolf's Avatar
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    Quote Originally Posted by Brown_Muscle View Post
    Yeah if it comes with all the info on a paper, and you can post it up, i'd greatly appreciate it! I'm currently leaning towards this converter: http://www.edgeracingconverters.com/...d-aod-p-1.html
    Well the converter arrived today. Outside of arriving with my invoice and a sticker, there was no specification paperwork.

    I count three splined sections, so I assume it to be a lockup unit:

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 + September 2019 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (222K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  13. #13
    I'm an air-conditioned gypsy gadget73's Avatar
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    Not neccesarily. Its designed to work with the stock shaft, but it could have both sets of splines connected to the turbine rather than the outer to the turbine and the inner to the shell like stock. If you poke the inner shaft in there it should be easy enough to figure it out. The turbine you would be able to rotate without turning the whole shell, if its connected to the shell you won't be able to do that.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  14. #14
    Road Warrior Kodachrome Wolf's Avatar
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    Quote Originally Posted by gadget73 View Post
    Not neccesarily. Its designed to work with the stock shaft, but it could have both sets of splines connected to the turbine rather than the outer to the turbine and the inner to the shell like stock. If you poke the inner shaft in there it should be easy enough to figure it out. The turbine you would be able to rotate without turning the whole shell, if its connected to the shell you won't be able to do that.
    I really couldn't "turn" anything as it sits, however I could prod the large outer splined area, and it moved a little, same with the middle section. The small splined area wouldn't move and seemed to be separate from the middle section.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 + September 2019 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (222K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  15. #15
    I'm an air-conditioned gypsy gadget73's Avatar
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    sounds like a lockup then.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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