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Re: Some questions about torque converters [Re: Chargerfan68] #2624550
02/22/19 01:51 AM
02/22/19 01:51 AM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
pro stock
Chargerfan68  Offline OP
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So, i could do that... just put it in and run it till the summer and see how it feels. Then, if no good, i can have it reworked. I guess, does that mean if i call a converter shop, they will accept and adjust a converter that was not one of theirs? Or they don’t like to touch someone else’s coverter they didn’t build?

Also, from what i gather here, if a high quality converter maker designs an optimal converter for my package, it would perform optimal at the track as well as being as efficient as possible for street driving? Im not sure how they both come into play together.


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Some questions about torque converters [Re: Chargerfan68] #2624634
02/22/19 12:08 PM
02/22/19 12:08 PM
Joined: Jan 2003
Posts: 11,890
Benton, IL.
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DaveRS23 Offline
Special needs idiot
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Benton, IL.
Ultimate tightened up my PTC converter. No problem. And was much cheaper than a new one.

The goals of a race converter would be different than those of a street converter. So there will be differences. That doesn't mean that a converter can't be dual purpose, it's just that they will have different characteristics.

Asking about street vs strip converters is like asking what's a street car.


Master, again and still
Re: Some questions about torque converters [Re: Chargerfan68] #2624656
02/22/19 12:51 PM
02/22/19 12:51 PM
Joined: Jan 2003
Posts: 14,479
So. Burlington, Vt.
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fast68plymouth Offline
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So. Burlington, Vt.
The converter for a street/strip car is like essentially every other part on a street/strip car.
It’s a compromise........ like the cam, carb, rear gear, etc.
Most of the time the decisions for those parts are based on balancing the cars performance with the drivability on the street, along with reliability and how much street use vs track use.

It often works out that chasing a tenth or two on your street/strip car can cost you a disproportionate amount of lost street friendliness.

As I said previously, and reiterated by Dave........ you basically want as tight of a 9.5” or 10” unit as can be had, and it will still have over 3500 flash(probably closer to 4000).

“If it were me”, I’d send the one you have to Lenny at Ultimate, have him cut it open...... and then have a talk about what can be done with it.

If it’s not up to the task of 600+ ft/lbs, and it fails......... that’s more problems than just needing a different converter.
It’s a trans full of metal.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Some questions about torque converters [Re: Chargerfan68] #2624698
02/22/19 02:29 PM
02/22/19 02:29 PM
Joined: Aug 2011
Posts: 2,842
Pattison Texas
CSK Offline
master
CSK  Offline
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Pattison Texas
Originally Posted By Chargerfan68
Thanks for all the good info and advice so far. The only other info that i can think of is weight is 4240 lbs with driver. Rear gears will be 3.23 for street/highway trips, and 3.91 for track. 8-3/4 rear. I will be running drag radials 28 “ tall.
Only actual numbers i have are dyno numbers. They are as follows:

Rpm. Tq. Hp
3900. 609.7. 452.7
4000. 608.3. 463.3
4100. 610.6. 476.7
4200. 613.1. 490.3
4300. 621.1. 508.5
4400. 625.5. 524.1
4500. * 629.6. 539.5
4600. 628.6. 550.6
4700. 625.4. 559.7
4800. 622.0. 568.4
4900. 619.1. 577.6
5000. 616.3. 586.8
5100. 611.7. 594.0
5200. 605.8. 599.8
5300. 599.4. 604.9
5400. 592.6. 609.3
5500. 581.4. 608.8
5600. 571.2. 609.0
5700. 561.3. 609.2. *
5800. 550.7. 608.2
5900. 540.3. 607.0
6000. 531.3. 607.0
6100. 515.7. 600.6

Avg. 602.07. 559.43

So, peak torque is at 4500 rpm. Does that chang anything? I guess for strictly racing, i woukd want a 4500 stall, but for combo driving, what woukd you guys be looking for? Aside from calling and having one built, or my 10” adjusted. I will do that, but trying to understand the fundamentals and theory of it.
If i can think of any other info, ill add it


4240 lbs, 68 Charger in your signature ?? how did it get so heavy, mine has d60,a518 overdrive, A/C, everything there, glass hood,4050 with me. Get your converter looked at, I had to get a custom TIGHT 10" converter built for my 512 street car, will flash 4k, but drives good on the street 3.54 gear.

Last edited by csk; 02/22/19 02:35 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Some questions about torque converters [Re: Chargerfan68] #2624743
02/22/19 03:50 PM
02/22/19 03:50 PM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
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Chargerfan68  Offline OP
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Ok, i understand. Makes sense. Thanks


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Some questions about torque converters [Re: Chargerfan68] #2624747
02/22/19 03:54 PM
02/22/19 03:54 PM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
pro stock
Chargerfan68  Offline OP
pro stock

Joined: Oct 2006
Posts: 1,262
New York, USA
The car this is going in, is my 73 charger. It also has 71 grill with hideaway headlights, so that doesnt help either. Last time at the track on the scales with a completely stock 440, it was 4360 with me in it. So, im guessing at the weight with this motor and all aluminum parts swapoed onto it including headers for the ex manifolds. I figure around 4250 or so


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Some questions about torque converters [Re: Chargerfan68] #2625332
02/24/19 05:28 AM
02/24/19 05:28 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
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383man  Offline
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Balt. Md
I run a Luppo Dynamic 9.5 converter in my 63 and they call it a street/strip converter and it was made to flash about 4200 behind my old 440. I now use it behind my 493 and it will still flash from about 4200 to about 4500. And I love it as the car drives around on the street like a normal stock type converter as I don't feel any slippage in it driving it normal. And it works fine at the track. I don't set the world on fire but it has given me a 1.50 sixty ft in my 63 at close to 3800 lbs and on just SS springs. You should be fine and as said as long as you have a good cooler it should work and drive fine. My converter has been in my car since 2006 with many street miles and some drag racing and it still drives great and works fine at the track. Good luck with it. Ron

Last edited by 383man; 02/28/19 01:04 AM.
Re: Some questions about torque converters [Re: 383man] #2625748
02/25/19 03:14 AM
02/25/19 03:14 AM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
pro stock
Chargerfan68  Offline OP
pro stock

Joined: Oct 2006
Posts: 1,262
New York, USA

T
Originally Posted By 383man
I run a Luppo Dynamic 9.5converter in my 63 and they call it a street/strip converter and it was made to flash about 4200 behind my old 440. I now use it behind my 493 and it will still flash from about 4200 to about 4500. And I love it as the car drives around on the street like a normal stock type converter as I don't feel any slippage in it driving it normal. And it works fine at the track. I don't set the world on fire but it has given me a 1.50 sixty ft in my 63 at close to 3800 lbs and on just SS springs. You should be fine and as said as long as you have a good cooler it should work and drive fine. My converter has been in my car since 2006 with many street miles and some drag racing and it still drives great and works fine at the track. Good luck with it. Ron


Thanks Ron. I’ve always loved your ‘63. Great running street strip ride. Im gonna try to call Freddy Brown and find out what converter he used and if he has the specifics on it. Then, i can send it out for adjustment if i need to.


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Some questions about torque converters [Re: Chargerfan68] #2626955
02/28/19 01:03 AM
02/28/19 01:03 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
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Joined: Jan 2003
Posts: 27,421
Balt. Md
Originally Posted By Chargerfan68

T
Originally Posted By 383man
I run a Luppo Dynamic 9.5converter in my 63 and they call it a street/strip converter and it was made to flash about 4200 behind my old 440. I now use it behind my 493 and it will still flash from about 4200 to about 4500. And I love it as the car drives around on the street like a normal stock type converter as I don't feel any slippage in it driving it normal. And it works fine at the track. I don't set the world on fire but it has given me a 1.50 sixty ft in my 63 at close to 3800 lbs and on just SS springs. You should be fine and as said as long as you have a good cooler it should work and drive fine. My converter has been in my car since 2006 with many street miles and some drag racing and it still drives great and works fine at the track. Good luck with it. Ron


Thanks Ron. I’ve always loved your ‘63. Great running street strip ride. Im gonna try to call Freddy Brown and find out what converter he used and if he has the specifics on it. Then, i can send it out for adjustment if i need to.



Thanks for the kind words as I also love that 68 Charger of yours that runs so good ! I would think any good converter company today should be able to build one that works good in your car on the street and the track. Ron

Re: Some questions about torque converters [Re: Chargerfan68] #2627004
02/28/19 05:28 AM
02/28/19 05:28 AM
Joined: Aug 2014
Posts: 562
Ohio
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lockjaw-express Offline
mopar
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mopar
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Joined: Aug 2014
Posts: 562
Ohio
I had a Dynamic Converter for my 727 in my 440 GTX, and was very impressed with it...just did not like the 727 because it had a manual valve body.

I just ordered a 4l80e and a Lock-up converter from Sean and Frank at Dynamic...I trust them since they build great Converters and transmissions.

One thing that is important, is to give them the exact application, weight of car, HP/Torque, Cam, Rear Gear so they can build a converter that really is what you want. I have fudged before, and you get what you order...

My race days are over, but I still want a street/strip car that will be fast, but street friendly.

Mark

Re: Some questions about torque converters [Re: Chargerfan68] #2627113
02/28/19 03:05 PM
02/28/19 03:05 PM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
pro stock
Chargerfan68  Offline OP
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Posts: 1,262
New York, USA
Thanks Mark. Ill be sure to give them all the info i can.


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
Re: Some questions about torque converters [Re: Chargerfan68] #2627118
02/28/19 03:09 PM
02/28/19 03:09 PM
Joined: Oct 2006
Posts: 1,262
New York, USA
Chargerfan68 Offline OP
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Chargerfan68  Offline OP
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Posts: 1,262
New York, USA
Can anyone go into some detail, in laymans terms (haha), what they actually do to a quality built unit, compared to a unit that is not as efficient at the track. Also same question for a street speced converter. And finally, the diff internally between a converter more geared to the track than the street. What is changed internally to change the characteristics. I know the general parts inside and terms. Thanks


1.50 60Ft. , 10.75@ 127MPH Hauling 3900 LBS.
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