Ep. 5 Torque Converters 101: What Is Stall Speed?

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  • เผยแพร่เมื่อ 20 มิ.ย. 2024
  • In this weeks episode, we're discussing stall speed and what that means exactly! We hope this video will dispel many myths and confusion surrounding stall speed and torque converter function. Please be sure to subscribe to our channel, like, and share our videos. Enjoy!!
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ความคิดเห็น • 213

  • @PatrickBaptist
    @PatrickBaptist 4 ปีที่แล้ว +56

    Very good video! Thanks for not having lame music or a bunch of other theatrics, just straight to the education.

    • @automaticosdovale-cambioautoma
      @automaticosdovale-cambioautoma 4 ปีที่แล้ว

      Yes!

    • @jamesfrench7299
      @jamesfrench7299 2 ปีที่แล้ว

      But..but..but you've got to be a crowd pleaser at all costs because the dum dums make the rules!!

    • @savage22bolt32
      @savage22bolt32 2 ปีที่แล้ว +2

      Thanks for the great educational video, and a huge thanks for not ruining it with crappy background music while you're talking. I don't know why some people are compelled to add annoying background music throughout the video.

    • @joshuagibson2520
      @joshuagibson2520 ปีที่แล้ว

      Fuckin Aye

  • @herseem
    @herseem ปีที่แล้ว +5

    This is a great video. Years ago I had a Rover 800 2.0 litre with ZF HP14 4-speed automatic gearbox. They were sold as Sterling in the US and I expect they had the 2.7 litre Honda engine over there. As I was having the engine and gearbox rebuilt I took the opportunity to have a custom-made torque converter. I told the torque converter company that I wanted the lowest stall speed possible. They said they could do it, but it wouldn't work as the engine would stall as soon as it was put in gear. I went away to think about it, and the maths involved, and I concluded that they were wrong, so I asked them to go ahead and build it that way. They supplied it to the mechanic who was putting the gearbox back together, and after having supplied it, someone higher up in the company rang him up and said, "We're sure it isn't going to work, so if you return it now before it's fitted, we'll put it back to normal at no extra cost". Clearly, the discussion about it had filtered up and someone more senior had eventually taken a look at the spec after it had already been despatched. I went away and thought about it again and simulated it in my head, and I concluded that I was simply going outside their normal envelope of experience, and that they were extrapolating linearly outside of their experience instead of in proportion to the cube root, which is indicated by the maths. Plus, I'd reached the point where I had to know if I was right or not. So I told the mechanic to go ahead and fit it.
    I've got to say that it was almost perfectly how I expected it to be, in that there was a bit of an extra 'kerthunk' when it went into Drive, and the engine vibrated a little more on tickover when stationary, as the torque converter was pulling harder at tickover, but it didn't even come close to stalling the engine. Driving through traffic was lovely, because a lot of the time I only needed to take my foot off the brake to keep up with slow traffic as it would creep at a much higher speed than normal. To make decent progress I only had to breathe on the accelerator and the first to second gear change was extra silky because then engine was revving so slowly when it happened. Commuting right across London at the time I managed to average 35mpg over a tankful, which is pretty good considering that it was a 2-litre, long and relatively heavy car, driving through one of the heaviest traffic areas of the UK for most of my journey each day. But I was especially delighted that my experiment had worked, and the experienced, qualified professionals were wrong. The downside is that at the traffic lights Grand Prix it was definitely slower, because the torque converter was holding the engine speed down to a lower speed all the way through each gear, but if you use a car for normal commuter driving and not racing, then a lower-stall-speed torque converter is much nicer to drive with.

  • @troyrice7813
    @troyrice7813 9 หลายเดือนก่อน +10

    Let me simplify this for everyone....the front spinny thing uses fluid to make the back spinny thing go around and around. The engine speed required for the front spinny thing to spin the back spinny thing when you mash the accelerator thingy as fast as you can is called the stall speed. I don't know why they call it stall speed because it doesn't stall when its spinning.

    • @kenchorney2724
      @kenchorney2724 6 หลายเดือนก่อน +3

      The turbine is stalled.

    • @Mad-productions.Jay.
      @Mad-productions.Jay. 3 หลายเดือนก่อน +1

      It does stall out tho the fluid starts to move backwards actually

  • @savage22bolt32
    @savage22bolt32 2 ปีที่แล้ว +8

    When my dad explained a torque converter to me in 1964, I was amazed. Now almost 60 yrs L8R, I see this vid & I'm still amazed!
    Thanks so much for making & posting this.

    • @pcno2832
      @pcno2832 ปีที่แล้ว

      I read a number of explanations over the years from 1979 to maybe 2005 and none of them mentioned the one-way clutch. But it never made sense the way the stator was said to divert the fluid and add to the torque unless there was also something to stop it from spinning backward. Finally, in 2005, I just added "one-way clutch" to a Google search on the subject and found a more complete explanation than I'd ever seen before. I guess I could have just asked a transmission shop, but the few I'd had reason to visit seemed too busy for educational questions.

  • @francfurian8215
    @francfurian8215 4 ปีที่แล้ว +13

    That was the best in-depth explanation on torque converters I have ever heard.
    Cheers😊

  • @TameToothSGA
    @TameToothSGA 2 ปีที่แล้ว +5

    Thank you for getting right to the point here and being actually educational. I know very little about how automatic transmissions work and i want to understand more so i’m gonna binge this whole series

  • @zgreen6604
    @zgreen6604 4 ปีที่แล้ว +7

    This was exactly what I was looking for. Thanks 👍

  • @codymontano8581
    @codymontano8581 4 ปีที่แล้ว +2

    Excellent video. I get it now. Thank you.

  • @Chuckmeister200
    @Chuckmeister200 4 ปีที่แล้ว +2

    amazing video...thanks...it's a generous amount of info to freely give to the car community.

  • @davidparker9676
    @davidparker9676 4 ปีที่แล้ว +2

    Excellent explanation. Great information-packed video.

  • @arthurrose6473
    @arthurrose6473 2 ปีที่แล้ว +3

    Once again, excellent, concise with some impeller/stator/turbine design details and stall speed clarification.

  • @rohitsvs1
    @rohitsvs1 4 ปีที่แล้ว +3

    Every word is informative!❤️
    Thank you so much. 🙂

  • @UhhChriss
    @UhhChriss 4 ปีที่แล้ว +6

    love the channels. filled with great info 🤟🏾

  • @travispeoples
    @travispeoples 4 ปีที่แล้ว +7

    Learned a lot, thank you.

  • @chrisjohner4307
    @chrisjohner4307 ปีที่แล้ว +1

    I watched several other videos on stall speed and was nothing but disappointed. All of those people need to come and watch this and get an education from you professor. Fantastic video and 100% convinced me of who I need to go to for parts.

  • @trevorplaysguitar
    @trevorplaysguitar ปีที่แล้ว +1

    Well what a shock to pull up a video done by none other than PETE! Wow that caught me off guard.

  • @tptrsn
    @tptrsn 4 ปีที่แล้ว +2

    Fantastic video, thanks!!

  • @elopez4225
    @elopez4225 2 ปีที่แล้ว

    I watched two of your explanation videos and knew right away to subscribe. Excellent and very helpful!

  • @bdjm8595
    @bdjm8595 3 ปีที่แล้ว +1

    Great video, thanks for the info!!!

  • @jh5881
    @jh5881 3 ปีที่แล้ว

    Very well done, thank you

  • @michaelclanton1152
    @michaelclanton1152 4 ปีที่แล้ว +2

    Nice job with good tech.TY!

  • @infamousdjnoxzeit1250
    @infamousdjnoxzeit1250 4 ปีที่แล้ว +2

    i really appreciate this video, in short the more you slow down the fluid coupling from happening/ efficiency the higher the stall speed/ the more torque can be output by engine without overriding torque converter, trans, etc. Thank you so much finally understandable. :)

  • @dendens8188
    @dendens8188 4 ปีที่แล้ว +1

    Excellent video

  • @mikef-gi2dg
    @mikef-gi2dg 4 ปีที่แล้ว +3

    Oh baby, this video packed a punch, I learned a lot, especially that I should call for recommendations even on a mils street combo, I finally get it. Excellent.

  • @user-fr2lm7cs4x
    @user-fr2lm7cs4x 2 ปีที่แล้ว +1

    man, you are the best :) so nice for understanding about, thanks so much

  • @charlestackett7137
    @charlestackett7137 4 ปีที่แล้ว +26

    As a student, I appreciate information that I can understand. This video helped me understand stall speed and the factors that influence its variability. Thank you.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +2

      Thanks for your kind words and your support!

    • @Rekuzan
      @Rekuzan 2 ปีที่แล้ว +1

      I went through several other videos myself before finding this one!

  • @b-17wingman37
    @b-17wingman37 ปีที่แล้ว

    Great video .Thank`s.

  • @marshallsanders5672
    @marshallsanders5672 ปีที่แล้ว

    Great Video ! Thank You

  • @mericafreedomland3583
    @mericafreedomland3583 4 ปีที่แล้ว +6

    Nice to know TH-cam listens to or watches my text messages..... 5 hours ago I had this exact discussion with my buddy about stalls and tq converters lol

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +1

      Google says, "you're welcome" 😂😂😂

    • @mericafreedomland3583
      @mericafreedomland3583 4 ปีที่แล้ว +1

      Hughes Performance lol!! Definitely got me subbed buddy!!

  • @brandonwoods9866
    @brandonwoods9866 2 ปีที่แล้ว

    Awsome video....very informative 👍

  • @gilliam355
    @gilliam355 2 ปีที่แล้ว

    This video really help me with my concern

  • @garyrobinson3735
    @garyrobinson3735 4 ปีที่แล้ว +1

    great video!

  • @laytonlance1741
    @laytonlance1741 4 ปีที่แล้ว +4

    Great video, thanks for taking some of the mystery out converters.

  • @countryprepper4719
    @countryprepper4719 4 ปีที่แล้ว +5

    I am getting started on my 1971 Nova build. Just got my 383 stoker built, I was thinking in my mind I need a 2,500 stall. I wake up this morning and this is the first video on my recommend list. LMAO 😂

  • @HeliMicky
    @HeliMicky 5 ปีที่แล้ว +2

    Thanks again love these videos

    • @HughesPerformance
      @HughesPerformance  5 ปีที่แล้ว +1

      Thanks for your kind words and your support! We really appreciate you!!

  • @johnfrese4851
    @johnfrese4851 4 ปีที่แล้ว +1

    I actually had a couple sent to me when I talked and said this is what the gearing is this is what the trans is set up as hp rating and what my customer is looking for. getting the right torque converter to every set up is always a good thing when dealing with the final set up no one wants to take back out the trans just to fix a issue

  • @nissandet1
    @nissandet1 4 ปีที่แล้ว +4

    Can’t wait to get my 408 sbm with twins together to start building the A999 to go behind it. You’ll be hearing from me.

  • @daymianhayes2493
    @daymianhayes2493 2 หลายเดือนก่อน

    Best stall speed video on TH-cam 👍

  • @colehara
    @colehara 2 ปีที่แล้ว

    Very interesting.
    Previous to this I was pretty much in the dark as to how torque converters function.
    👍

  • @samurai1833
    @samurai1833 ปีที่แล้ว

    Great lesson, if I get into the market for a custom design I'm calling you! Thanks.

  • @mrglock2313
    @mrglock2313 4 ปีที่แล้ว +2

    I just purchased a Hughes converter. Works great 👍👍

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +2

      Thank you!!

    • @mrglock2313
      @mrglock2313 4 ปีที่แล้ว +2

      @@HughesPerformance NO, thank you for building quality parts. That's something we lost in this country over the years is quality, but you guys understand quality. I inspected the 2500 converter and it's great! Keep up the good work. 👍

  • @r1son
    @r1son 4 ปีที่แล้ว +1

    Great video on understanding converters. Some shops i have spoken to ask specific engine build details is this really needed. Also is converter diameter a big factor in achieving what is needed as in smaller engines need smaller diameter for it to work. Thanks ray

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +2

      Yes, when we provide a torque converter recommendation we want to know as many engine specifics as possible as well as vehicle weight, rear gear ratio, rear tire size, how the vehicle will be used, etc.

  • @automaticosdovale-cambioautoma
    @automaticosdovale-cambioautoma 4 ปีที่แล้ว +2

    Very good! I tested a Dodge Dakota 3.9, V6 and I had 1600rpm. Is it right?

  • @elopez4225
    @elopez4225 2 ปีที่แล้ว

    I will definitely be calling.

  • @coolbreeze5561
    @coolbreeze5561 2 ปีที่แล้ว +2

    I was glad to hear that about the foot brake stall. I don't like power braking at all and don't do it. I've taught my sons it's an embarrassment. If the car won't spin the wheels on it's own free will then build a bigger engine.

    • @elijahscustom
      @elijahscustom 4 หลายเดือนก่อน

      Spining wheels at 60 mph it takes torque period!!!!! Engine gotta be on the money cant make the power if the engine not burning the fuel

  • @dalebourgeois9851
    @dalebourgeois9851 6 หลายเดือนก่อน

    Thankyou for sharing this video. I have a 02 silverado 1500, 5.3ls, 3.42 end, all stock. What stall would you recommend for towing, daily driver?

  • @jbstepchild
    @jbstepchild 11 หลายเดือนก่อน

    Amazing video you said it best trust in this gent he knows what he says

  • @uncletonysclaw1049
    @uncletonysclaw1049 ปีที่แล้ว +1

    Bro! The banshee in the back ground 😂

  • @johnhutsenpillerjr1785
    @johnhutsenpillerjr1785 4 ปีที่แล้ว +3

    Turbo hydramatic 425s had a variable pitch stator. VERY efficient. Shame they quit making them.
    Caterpillar hydrostatic transmissions had a unique torque converter design...
    Ever seen one ??
    Great video Sir.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +1

      We've rebuilt many variable pitch GM converters over the years, but not that particular Caterpillar unit you mentioned.

  • @sojuli1
    @sojuli1 2 ปีที่แล้ว

    Good afternoon, I have an edelbrock performer kit, for a 302, 81 of a bronco, they estimate 320 hp and 260 foot pounds of torque between 2000 and 4000 rpm (5500 rpm max). It has a 3-speed c6 box, standard differential and 33 wheels, I need to replace the torque converter, I appreciate your suggestion to choose the right one for these characteristics, the camshaft indicates, intake duration 204 degrees, exhaust duration 214 degrees, elevation intake .448", exhaust elevation .472", lobe separation 112 degrees, intake center line 107 degrees, vacuum 16", thank you very much and congratulations for the videos, they are of great help to incorporate knowledge.

  • @philchigges2955
    @philchigges2955 4 หลายเดือนก่อน

    didn't know it was so complicated wow!

  • @leovenegas9809
    @leovenegas9809 ปีที่แล้ว +1

    If I install a stage 2 cam kit, will I need a different tipe of torque converter for a stick 5.3L?

  • @MikkoRantalainen
    @MikkoRantalainen 5 หลายเดือนก่อน

    Great video! The only question I have is how much a typical car torque converter waster energy (in kW) when the transmission in on Drive, the engine idling and the car is hold on brakes? Does different stall speed affect this?

  • @evslays5392
    @evslays5392 4 ปีที่แล้ว

    Thank you for the video, I’m interested in buying a convertor from you, what would you recommend running with a 2016 Camaro SS 6.2 LT1 engine automatic 8 speed with stock gears, I’m looking to use a GPI track attack cam 237/255 duration .648/.630 111 LSA. On their website they recommend a circle d 4000 stall converter, but I’d like a second opinion seeing I do not want the extra stall if I do not need it. Stock weight 6 gen Camaro ss 3,685 curb weight 275/35/20 in rear and 245/40/20 in front. Thank you

  • @MoparMan-ff8fb
    @MoparMan-ff8fb ปีที่แล้ว

    what stall do you recomend ? I have a 1982 dodge d150 short bed with mildly built 318 with stock 30 over flat top pistions with factory 360 Hipo cam . 727 auto none lockup with racing shift kit and rear is 8-1/4 with 3:55 gears . the front 15 x 7 with 235 /75/15 and rear is 15x 8-1/2 with 255/75/15
    I was thinking 2000 stall ?????

  • @mojunk19
    @mojunk19 3 ปีที่แล้ว

    Ok what is a reinforced converter? When I had my 200 4R trans built the builder recommended I get one.

  • @off-roadingexplained8417
    @off-roadingexplained8417 2 ปีที่แล้ว

    do people upgrade torque converters to deal with larger mud tires ? Seems like a good idea to me. I know a lot regear. I don't hear many people talking about torque converters though which to me would make sense also.

  • @barrykilts4506
    @barrykilts4506 ปีที่แล้ว

    Can you tell us if more or less hp,torque or cam would effect the stall of the converter one buys,up or down?

  • @jasonfloyd1179
    @jasonfloyd1179 3 ปีที่แล้ว

    Now on that flash stall speed is that just before redline and then you can tell what your stall speed is by rpm or before the trans changes gears?

  • @DrivelineMaster
    @DrivelineMaster 4 ปีที่แล้ว

    One question. When talking about measured stall speed did you say "Flat" stall speed or "Flash" stall speed?

  • @ziggassedup
    @ziggassedup 5 ปีที่แล้ว +2

    I really appreciate the vid..My knowledge of "High stall" is to get the engine in the sweet spot when you stab it as well as be able to idle with a large cam(low manifold vac) but the actual size of the converter is much smaller as the stall speed increases (Factory V8 converter over 3500 rated converter)....I'd like to know is that a smaller oil volume thing...

    • @HughesPerformance
      @HughesPerformance  5 ปีที่แล้ว +2

      Great question!! Thanks for commenting here. Oil volume inside a torque converter does indeed play a significant role in the stall speed characteristics and coupling efficiency of a torque converter.
      As torque converter diameter decreases, oil volume obviously decreases as well. As oil volume decreases, there is less fluid available to offer resistance against the impeller as the engine is running as well as less leverage being generated from the impeller to the turbine due to the smaller, shorter impeller vanes. Consequently, as more engine torque is applied to the impeller, a corresponding rise in stall speed occurs.
      Additionally, most smaller diameter torque converter cores typically come from OEM applications that feature small engine displacement with relatively low torque output. As a result, the impeller designs commonly used with many smaller diameter torque converter cores feature more neutral or even negative impeller vane angles. As the impeller vane angle becomes more neutral or negative, stall speed increases due to the higher RPM required to create efficient fluid acceleration between the impeller and turbine.

  • @twomontess
    @twomontess 4 ปีที่แล้ว +2

    Can you talk about or make a video about convertor slip ?? I lost mph and et as my convertor aged. I still don’t understand why it happened and how to prevent it

  • @boden8138
    @boden8138 5 ปีที่แล้ว +6

    Thank you for making these videos. Curious about stall speed application. I’m guessing a high rpm hydraulic hookup would be used for drag racing where ya only care about 4-8k rpm. A slow hydraulic hookup, say 800 rpm for a Diesel tractor. Am I in the ballpark?

    • @HughesPerformance
      @HughesPerformance  5 ปีที่แล้ว +13

      Thanks for your support and for commenting! We really appreciate it!!
      You're definitely thinking along the right lines. The vast majority of torque converters that we build for dedicated drag racing applications will typically provide a flash RPM of anywhere from 4,500 RPM to as much as 7,000 RPM and beyond, depending on the application. We tailor the necessary stall speed characteristics and converter coupling point to each specific application when it comes to our custom converter builds.
      Modified street-driven diesel applications will typically utilize a torque converter that only provides around 1,000 - 1,500 RPM of flash stall speed. Due to the torque output of diesel engines and the relatively low RPM ceiling, diesel applications typically need a very low coupling point in the converter.
      Hope this helps!!

    • @rubenlopez6588
      @rubenlopez6588 ปีที่แล้ว

      I have a 2002 mustang gt stage 4 comp cams and 3200 stall converter do I need a tune again?

  • @sarahcrabtree720
    @sarahcrabtree720 ปีที่แล้ว

    Are there any markings/#s on torque converter to know if it's stock or performance ? (Part # ?) I bought a used C-4 with a converter. Was told it is 4,000 stall. Haven't found any #s to know if it's stock or performance.

  • @renaissanceman7145
    @renaissanceman7145 3 ปีที่แล้ว +2

    Great video, very informative, in depth explanation delivered in an easy to understand presentation.
    That said, I have to aak....what in the world is the guy with the air tool destroying? I'm no transmission expert but I find it impossible to believe any transmission requires 20 minutes of off and on grinding with an airtool.
    Thanks again for the video.
    All the best.

  • @jrsgarage3244
    @jrsgarage3244 3 ปีที่แล้ว +1

    Can you take t400 with 10" convertor stalls 3500rpm change to 2500rpm with dump valves? Charging fluid? Thankyou

  • @bidenstoletheelection9116
    @bidenstoletheelection9116 2 ปีที่แล้ว +3

    Last time I spoke with Jim Hughes he told me the Billet core halves cost less then having to source down OEM cores, So with that said even though I've always had great experience with your convertors I just recently went with a new FTI again as a $100 core fee you guys at Hughes have added to the cost of buying a new convertor is B.S

  • @tanishamaddox585
    @tanishamaddox585 2 ปีที่แล้ว

    Can you assist me in a torque converter question on the correct torque converter for my setup?

  • @irzoro
    @irzoro ปีที่แล้ว

    I've got a .060" over 427 12.5:1 CR, Single plane intake with a 800 cfm dbl pmp Holly. Solid lifter cam, Advertised Duration: 304
    Duration at .050" : 258
    Lobe Separation : 108 .615" lift, 400 THM 4:56 12-bolt posi in a 4000lb 72 C/10. Can you recommend what stall speed I need? This truck wont see much street, track truck mostly...Thanks!

  • @JoeIsCrazyWillman
    @JoeIsCrazyWillman 4 ปีที่แล้ว +1

    In my Dodge truck, I could foot-brake stall and get the same as static stall. I pressed foot down hard on the brakes, and also pulled the E-brake, and that was enough to keep the tires from spinning under a WOT punch. Got ~2200rpm

    • @lost1mp
      @lost1mp 4 ปีที่แล้ว +1

      JoeIsCrazyWillman my condolences to your trans.

    • @PatrickBaptist
      @PatrickBaptist 4 ปีที่แล้ว +1

      @@lost1mp Yeah really, in a dodge it won't put up with that long, sad when a company makes a worse slush box than GM does, but yet fiat dodge does LOL.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +1

      Some vehicles do have enough brake system holding power to achieve maximum converter stall speed. As engine torque output increases with modifications, that becomes much more difficult to achieve.

  • @Kastra707
    @Kastra707 หลายเดือนก่อน

    So if I have a LS swapped conversion and I feel that at idle the engine is over powering the brakes do I get a bigger converter? Or should I consider a different automatic transmission with a lower first gear ratio

  • @brucesauer3668
    @brucesauer3668 10 หลายเดือนก่อน

    I have a Hughes converter that I am running in my s10 pickup. Would Hughes have a record of my converter I purchased 6 years ago.

  • @barrykilts4506
    @barrykilts4506 ปีที่แล้ว

    Can you tell me if there is anything like more or less hp or cam than one thinks that would cause the stall to be effected,I mean more or less than advertised?

  • @yosammy1746
    @yosammy1746 ปีที่แล้ว

    So if I want to push more horsepower and torque on my 1999 CRV, would an aftermarket torque converter be ideal?

  • @chrisharrison9646
    @chrisharrison9646 2 ปีที่แล้ว

    so I have a 454 bored 030, 10.5:1CR, 280H comp cam, TH400, 3.42:1 posi rear and tires are 26" tall. what is the ideal torque converter?

  • @pwash474
    @pwash474 11 หลายเดือนก่อน

    I am confused. So, do higher rpm stalls above new specs indicate worn converters or do lower rpm stalls indicate worn fins or leak by?

  • @thedobermangang3503
    @thedobermangang3503 2 ปีที่แล้ว

    i got a question for u ..i got a 1990 k5 blazer 700r trans 2000 to 2400 torque converter in it and im thinking about buying this race motor it has 12.5 to 1 sbc 355 030 over with elgin e-1090p solid flat tappet cam with scorpion 1.6 rockers for total lift of 573 intake 594 exhust can i use the torque converter i have on this engine,,..i no i got alot of things to change because it is a tbi fuel injection

  • @pcno2832
    @pcno2832 ปีที่แล้ว

    Up to the end of the 1967 model year, GM made "switch pitch" torque converters, which increased the stall speed if the accelerator was depressed most of the way. It seemed like the best of both worlds, but I've heard it could be a reliability trouble spot. Do any aftermarket builders make switch-pitch converters today?

  • @jamest.5001
    @jamest.5001 4 ปีที่แล้ว +1

    You guys do anything with the new 6 & 8 speed Chevy trans stall converter .like camaro and trucks, About 2400 stall, something to handle a 1k idle, and lock for street, I want to swap one into a older car, with older engine,

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว

      We sure do! We have options available for the 6L80, 6L90, and 8L90.

  • @bobwilcox5775
    @bobwilcox5775 4 ปีที่แล้ว +1

    i have a 55 bel air with a ls3 and a brian tooley stage 2 cam, the cam is advertised to use the stock converter..... it has a 6l80e trans with 350 gears and its against the converter when i stop. What converter would you recommend for this application. Thanks, great video.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว

      The BTR LS3 Stage 2 camshaft really works better with a higher stall torque converter. It's a great cam, but it's barely tolerable with a stock torque converter. I recommend our part number 65-25L. This is our Street Master 6L80 model that will typically provide stall speed in the range of 2,400 - 2,600 RPM with a combo like yours, will provide more favorable idling characteristics in gear, and still maintain fantastic drivability.

    • @robertwilcox393
      @robertwilcox393 4 ปีที่แล้ว +1

      @@HughesPerformance Thanks for the response, i will be getting with you to order that converter.... Thanks

    • @bobwilcox5775
      @bobwilcox5775 4 ปีที่แล้ว +1

      @@robertwilcox393 Do you recommend a trans cooler, or is it necessary.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +1

      @@bobwilcox5775 an external transmission fluid cooler is always a sound investment.

  • @steveallen1340
    @steveallen1340 4 ปีที่แล้ว +2

    Thank you for this great explanation. I was wondering why does the slip ratio reduce as RPM increases, I.e.: if you have a flash stall of say 3,000 rpm then you have close to a 3,000 rpm difference in input shaft to output shaft speed, but once the engine reaches say 6,000 rpm the output shaft would be much closer to the input shaft speed. Thank you for explaining that centrifugal force enables the fluid to transfer more energy.

    • @ronnierandy8151
      @ronnierandy8151 2 ปีที่แล้ว

      Sorry to be offtopic but does anyone know of a method to log back into an Instagram account?
      I stupidly lost my password. I would love any help you can give me!

    • @jaycejaime3965
      @jaycejaime3965 2 ปีที่แล้ว

      @Ronnie Randy Instablaster :)

    • @ronnierandy8151
      @ronnierandy8151 2 ปีที่แล้ว

      @Jayce Jaime thanks so much for your reply. I found the site on google and im in the hacking process now.
      I see it takes quite some time so I will reply here later with my results.

    • @ronnierandy8151
      @ronnierandy8151 2 ปีที่แล้ว

      @Jayce Jaime It worked and I actually got access to my account again. I am so happy!
      Thanks so much, you saved my ass !

    • @jaycejaime3965
      @jaycejaime3965 2 ปีที่แล้ว

      @Ronnie Randy Happy to help :D

  • @jamielombardo5292
    @jamielombardo5292 ปีที่แล้ว

    I have a brand new Hughes 2500 torque converter in the box going in my S10.

  • @attitudeadjusted9027
    @attitudeadjusted9027 4 ปีที่แล้ว +6

    Used Vega convertors with turbo 400 with shift kit and manual valve body and big blocks on the street for years.

    • @sswcustomsewing4276
      @sswcustomsewing4276 3 ปีที่แล้ว

      I was thinking the same thing that worked yet they sure built some heat.

    • @redreedreed8
      @redreedreed8 ปีที่แล้ว +1

      @@sswcustomsewing4276 so if I had a six-cylinder with the same transmission and put it behind the big block it will make more torque with the big block

    • @redreedreed8
      @redreedreed8 ปีที่แล้ว +1

      I mean to say it would give it more stall

  • @cesarlaso356
    @cesarlaso356 4 ปีที่แล้ว +1

    Can you make a video dedicated to the Allison 1000 TC considerations and different applications. I want a truck that can do it all. Street, track, tow/haul. I'm at 454hHP de-torqued to 800 lbs. with a 120hp tune looking at getting a transmission built and throwing in a 250hp tune for my 68mm, 10mil.stroked CP3 and 60 over injectors. Goal of 750hHP/1300TQ.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว

      We don't get into Allison transmission builds here at Hughes, nor do we offer much for the diesel market apart from the typical billet triple disc converters and deep pans. If you're looking for hardcore diesel performance transmissions then you really need to be dealing with Suncoast.

  • @wyatttipton9957
    @wyatttipton9957 4 ปีที่แล้ว +2

    So my truck makes 265 full at 2000 rpm. (Ford 300) if I foot brake it it does about 1500 rpm. Is there anyway to determine how to determine my stall speed based on that?. Its totally stock E4OD transmission

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +1

      Maximum stall speed is determined by whatever RPM the engine will flash to upon initial acceleration under load whether that be from a stop or very slow roll. You can transition to wide open throttle immediately at the same time of releasing the foot brake at 1,500 RPM, observe the tachometer while doing so, and the initial flash RPM is the maximum stall speed of your converter. You'll probably only notice another 200 - 300 RPM of flash over your current footbrake stall speed with that combination.

  • @ar501dboy3
    @ar501dboy3 3 ปีที่แล้ว +2

    Does more vehicle weight require a higher or lower stall speed?

    • @antoniononame3037
      @antoniononame3037 ปีที่แล้ว

      Lower because they weight of the vehicle will allow for more

  • @elvislive1557
    @elvislive1557 4 ปีที่แล้ว +2

    Thanks for the great video! What is going on with a GM Switch Pitch / variable vane torque converter? How do they work and do they have any benefits?

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +5

      Switch pitch torque converters can alter the stator vane angle (or "pitch") when the switch pitch feature is activated. The stall speed will increase when the feature is activated which contributes to faster engine & vehicle acceleration from a stop or low speed.

    • @LgSutterby
      @LgSutterby 4 ปีที่แล้ว +2

      @@HughesPerformance Came to ask the same thing, I rebuilt an ST400 trans and stuck it behind a 472-inch Caddy in my rat rod but didn't fully understand how the switch-pitch function works. Thanks!

    • @guardiandogoargentinos1385
      @guardiandogoargentinos1385 2 ปีที่แล้ว +1

      @@HughesPerformance So, are you saying you can have a switch where you go from stock to high stall speed???!?

    • @pcno2832
      @pcno2832 ปีที่แล้ว

      @@guardiandogoargentinos1385 I believe the solenoid that controlled the pitch of the vanes was connected to a switch that detected the throttle position, but it could easily have been connected to a manual switch.

  • @davidvannorsdall2094
    @davidvannorsdall2094 3 ปีที่แล้ว

    This video is making my brain hurt but thank you for making his videos I'm not trying to build a race vehicle I'm trying to keep my old plow truck on the road and I'm trying to understand every system from bumper to bumper on a molecular level

  • @garywhitten9899
    @garywhitten9899 3 ปีที่แล้ว +2

    I have a 72 350 motor 4 Main with a turbo 400 miles it and I can’t get the torque converter with the torque transmission through a belt was a shift kit what do I need in the torque in the transmission it would work with that transmission

    • @sswcustomsewing4276
      @sswcustomsewing4276 3 ปีที่แล้ว

      Excellent engine and transmission combination right there. Hopefully you got everything figured out and have it running great.

  • @badass6.0powerstroke10
    @badass6.0powerstroke10 4 ปีที่แล้ว +1

    What's the advantage of going with a steel stator compared to a aluminum stator ? Is it just that it can handle more power ?

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +2

      A steel stator is ultimately stronger than an aluminum stator. That being said, modern billet aluminum stator designs are incredibly strong as well.
      What it really boils down to is selecting the right stator design that will provide the correct flash RPM, torque multiplication, and converter coupling characteristics for a given combination.
      Correctly designed steel stators will typically (though not always) offer increased flash RPM, less torque multiplication, and greater converter coupling ability when compared to similar aluminum stator models.

  • @keysautorepair6038
    @keysautorepair6038 4 ปีที่แล้ว +1

    Do u have any HP 2215 valve body replacement gaskets.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว

      Yes, you can order those under part number HP2216 which comes as a pair.

    • @keysautorepair6038
      @keysautorepair6038 4 ปีที่แล้ว +1

      @@HughesPerformance
      Thanks for the response been a great transbrake.

  • @33ordie
    @33ordie ปีที่แล้ว

    I have a Dodge Charger 5.7 AWD and find there's not enough stall which makes the engine not rev enough when hitting the gas fully to get the performance it should compared to a RWD... What can be done for this?

  • @un_civilized
    @un_civilized 4 ปีที่แล้ว +3

    Are there application for using both a torque converter and clutch at the same time?

    • @mikeford963
      @mikeford963 4 ปีที่แล้ว +2

      Not usually as an automatic transmissions clutches are internal. And the new "manumatic" type automatics simply allow to specifically select an individual gear. Actual manual transmissions do not use a torque converter, just a clutch. To have both would require a massive bell housing and a very complicated hydraulic system from the transmission.
      Also, why would you want both? The complexety of an automatic is enough for most people. Why add to that by throwing an additional fly wheel clutch to the mix.

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +4

      Lock-up torque converters first began use by US domestic manufacturers in 1978. A lock-up converter features a clutch inside the torque converter that applies at cruising speeds typically around 35 - 40 MPH depending on the application. This feature was originally incorporated by OEM's to help increase fuel efficiency and reduce engine emissions. The aftermarket has since adapted lock-up converter technology to some extreme high horsepower drag racing applications.

    • @pcno2832
      @pcno2832 ปีที่แล้ว +1

      In the early days of automatics, there were actually Chryslers with a pedal-operated clutch and a fluid coupling (a torque converter without the stator). Some shifted automatically between 2 speeds, but you had to use the clutch to switch between "ranges". They were probably less confusing to drive than to explain. The comments on this video explain it better than I ever could.
      th-cam.com/video/p-wfIrtVUmk/w-d-xo.html
      Also, VW had something called an "Automatic Stick Shift" in the 1960s, with a torque-converter, a vacuum-operated clutch and a 3 speed manual gearbox. The clutch automatically disengaged if the transmission lever moved so the driver just had to shift.
      Both of these seemed kind of kludgy, but they still could idle in gear, and could be driven in high gear with no shifting as long as you weren't in a hurry.

  • @williamosborn5501
    @williamosborn5501 ปีที่แล้ว

    I am Still Trying To Have My Older 7004 And My New Blue Print 383 Stroker Working Properly, I have PurchasedA Hughes 2600-2700 Stall Converter And The Engine was Surging I was Told To Unhook Plug On The Driver Side Of The Transmission .After Doing So The Engine Surge Has Gone Away But I Don't Want to Burn Up My Transmission. I Am Getting Conflicting Information On Whether Or Not This Will Happen. This Combination Is In My 55 Belair 2Dr. Htop Which I Have Owned For 51 Years And It Is A Beautiful Car! I Would Appreciate Any Assistance In Resolving This Problem! Thank You!

  • @zzyzx0069
    @zzyzx0069 4 ปีที่แล้ว +2

    The most important aspect of explaining stall speeds that you missed is uses of stall speeds. Why you'd want a low stall speed vs high stall speed. What benefits from low stall speed and high stall speeds. Should have done that just after you explained what stall.speed is at the beginning before going into what affects stall speed.

    • @jh5881
      @jh5881 3 ปีที่แล้ว

      People have short attention spans....if you wanted to see this vid., you likely know what stall speed relates to IMO.

  • @hossamnashar
    @hossamnashar 4 ปีที่แล้ว +3

    I have 1500 silverado with 4l80e and ls3 gt12 cam 373 gear what is best converter

    • @HughesPerformance
      @HughesPerformance  4 ปีที่แล้ว +4

      Our part number 25-30LHD torque converter would work well with your combination. This is our Pro Street series billet single disc 265mm model featuring an advertised stall speed rating of 3,000 RPM. This converter works really well in high performance trucks; offering a nice overall blend between great drivability along with a significant improvement in overall acceleration and performance as compared to an OEM torque converter.

    • @hossamnashar
      @hossamnashar 4 ปีที่แล้ว +2

      Thanks

  • @graemebrown2096
    @graemebrown2096 3 หลายเดือนก่อน

    What is the lowest usable stall for a 2700 lb oval track race car.
    4.88 rear gear.

  • @robertbruneau112
    @robertbruneau112 ปีที่แล้ว

    What is the difference between a low hp max effort small cu in converter, like an NHRA stock eliminator like a K/SA, and say a 400hp bracket car of equal weight?

  • @djslick1311
    @djslick1311 3 ปีที่แล้ว +1

    DOPE SHIT

  • @antonycapstick1421
    @antonycapstick1421 ปีที่แล้ว

    If you are running a converter with a stall speed of 2200 to 2600 and you are running at 65 mph on the freeway with the engine turning at 2000 rpm's at 65mpr will the torque converter, be slipping causing heat and poor efficiency?