I am in the market for a new torque convertor. What is everyone running? http://www.dieselplace.com/forum/smileys/Confused.gif


ATS


SUNCOAST single/triple


TTS


HUGHES


Precision industries VIGILANTE

Suncoast Triple disc. http://www.dieselplace.com/forum/smileys/Cool.gif

Haven't had a problem with my suncoast triple and my attitude monitor reassures that there is no slipping.http://www.dieselplace.com/forum/smileys/Big Smile.gif

I've got a Precision torque converter, seems to be great, no slippage.


I was putting a little fuel to it in 5th over the weekend. Got paced by an airplane coming over the mountains on Hwy 8 towards El Centro. The CHP was being "nice" and only wrote me for 93 in a 70 zone.


Back to traffic school I guess... but at least the torque converter wasn't slipping!

http://smileys.smileycentral.com/cat/4/4_17_4.gif (http://www.smileycentral.com/?partner=ZSzeb001) Suncoast Triple Plate











Edited by: DIESEL 5

steve you and mackin.......http://www.dieselplace.com/forum/smileys/HiHi.gif

suncoast for me Edited by: sdaver

Before Suncoast started building their own TCs, they used Precision Industries. You can bow down all you want, just remember who the ORIGINAL is. http://www.dieselplace.com/forum/smileys/HiHi.gif http://dieselplace.com/forum/smileys/HiHi.gif

Keep in mind, when you ask questions like these in a forum like this, the answer you get is based on what is popular, not necessarily what is the best. Ask how many owned a Pinto vs how many own a Viper, it doesn't mean the Pinto was better, only that they sold more of them.


I'm sure that a Suncoast is a good converter, but if all of those listed above will hold 1200ft-lbs of torque (just to pick a high number) then none of us really know which is the best TC. Unless you plan on making more than 1200ft-lbs, it might not make any difference if all of them will do what you need.


I asked a number of people in the transmission business and chose to go with the one with their OWN TC dyno and who does their own research and design.

Socal, do they have a website?

DTT ??% single disc torque convertor.


Mildly aggressive, civilized in towing and a decent track performer as well.


Still in the test phase, quite happy with its performance to date, will add the xtreme convertor in the next few weeks for a shakedown run

http://www.converter.com

ATS triple lock

socaldmax


I think you should learn more about torque converters by research, not asking shops about who builds the best converter. 99% of transmission techs(i use this word tech very loosely) don't know how a torque converter works and the ones that do, have no idea how much different a diesel converter works. On top of that, all the diesel converters for the big three should be built different from each other because their power bands come in at different RPMs. Precision builds a great converter, it is even better within the last two weeks. I sent you a PM, you did not answer. Did your trans shop check the counterweight clearance against the mounting pads?(the little metal weights on the flexplate that can knock out a front pump if the mounting pads sit on them) I could have helped Steve.


mike

I did research. If you can't trust people in the transmission industry to tell you about torque converters, who can you trust?


Asking in a forum, from customers, will give you feedback on whether people are satisfied with their purchase, how well they think it performs, how the buying experience went, any warranty issues, etc. But I honestly don't think any of us are experts on torque converter design. Plus there always seems to be some sort of agenda, etc.


I've spoken to Joe Webb at Suncoast a number of times over the last 7 or 8 months. He's the one who told me that he used to buy Precision converters. Also a few other people who have installed and know a bit about a number of converters. You have to ask someone, and I prefer to ask those in the industry rather than people who just happen to have bought one.


So enlighten us. How many TC mfrs own their own dyno? What kind of research can a TC mfr do without one? What are the differences between a TTS, Precision, Suncoast, ATS, etc?

Suncoast Triple ....


Cause I didn't like the color of the ATS .... http://www.dieselplace.com/forum/smileys/HiHi.gif


That's interesting Dyno, transmission ,hmmmmm .....





Mac http://www.dieselplace.com/forum/smileys/Geek.gif

socaldmax


Before you state facts you need to get them correct. Sun Coast has been building converters since 1989. I believe this is prior to the existence of Precision Industries. Sun Coast has purchased parts from Precision Industries. Sun Coast has never used Precision torque converters.I am not sure what your agenda is. By the way what products have you designed and built?


Smoop

Suncoast Triple Loc. Had the stage 3 installed last week. It's amazing the difference it makes over stockhttp://www.dieselplace.com/forum/smileys/Big Smile.gif.


Josh

Hi Joe.


Well, I guess I misunderstood you when we spoke over the phone. I got the impression that at one time you used their converters. Were the parts you purchased from Precision used in building torque converters? I remember we discussed TCs to an extent (I'm sure barely scratching the surface of your knowledge) but enough that I felt that I could make an informed purchase. I have no agenda other than to buy the best I can afford at the best price I can get it.


Obviously I've never designed any torque converters. I think I understand how they work and what is important to look for, thanks to our conversations.


Since you ask, the products that I've (helped) design and build are only used onboard a submarine and installed behind a door that requires a Secret clearance or better. they sell in the neighborhood of $1.5M to $10M each and require a great deal of mechanical, ergonomic and electrical engineering to perform properly.


Similar to the communications systems that NASA uses, but built to bowling ball durability.

my employees would loose the bowling ballhttp://www.dieselplace.com/forum/smileys/HiHi.gif

TTS Single Disc... I like the bottom-end torque..

you shouldn't lose bottom end after upgrading the torque converter with a single or triple disk unit

mtomac


Almost all converter rebuilders machine the stator for lower stall for cooler running and longer converter clutch life. The problem is that you lose some bottom end power because of slower spool-up of the turbo due to lower rpm.


mike

Can someone explain the functional and driver perceived differences between a single and triple disk convertor for all cretins such as myself? Thanks much!

http://www.dieseltrans.com/phpBB/viewtopic.php?t=12


Good Reading.

That's a good question.


This would be a good opportunity for some of the industry experts to explain design philosophy, like clamping force vs surface area, single vs triple disc, clutch material preferences, torque multiplication, etc.


I'm kinda curious what advantages an aftermarket single disc converter has over the stock single disc converter.

That's a good question.


This would be a good opportunity for some of the industry experts to explain design philosophy, like clamping force vs surface area, single vs triple disc, clutch material preferences, torque multiplication, etc.


I'm kinda curious what advantages an aftermarket single disc converter has over the stock single disc converter.








Socal, that would sure be a lot of heavy reading material, especially when it came to the flow dynamics. I guess we all just have to trust in our respected builders.

Can someone explain the functional and driver perceived differences between a single and triple disk convertor for all cretins such as myself? Thanks much!


A single disc converter has it's limits as well as a multiplate converter has its own. What a customer has to do is truely understand what he is asking of the converter then buy one that will meet his/her needs. We rate our single plate converter to hold upto 500 Hp and 900 ft/lbs. If you were to purchase one of our Xtreme programs and plan on drag raceing or truck pulling full time we would recommend that you not use our single plate unit, but instead use our multi plate unit. If you plan on towing a trailer and useing the truck for everyday normal use, you donot need a multi plate converter. The muti plate design allows for more friction area for the clutches to hold additional power but as you add more surface area you also create more drag when the clutch is not engaged. There is also some who believe that when the clutch is not applied that the forces within the converter cause the clutches to drag and wear out sooner than the single disc type. The therory behind this is that the hydralic oil that pushes the clutches away from the cover cause the floter plate to become squeezed between the friction material and pistion. Since the floater plate is splined into the front cover you are creating a drag on the converter like the clutch is applied. We have not seen this to be a problem but in therory is could happen.





Hope this explaination helps some.

Good info from both sources - THANKS!

Steve, I didnt know that you had a multi-plate, is it a Suncoast converter?? Let us know.

Interesting reading as well.


http://atsdiesel.com/atsu/atsu.html

It's our own design not a Suncoast. We have been working on it for months but have just finished getting it to work the way we wanted it too. The first production unit should be going into my LLY for final test next week. If all goes well, we will begin production building by the end of the week.

http://www.dieselplace.com/forum/uploads/1EZ_sto1.jpg
http://www.dieselplace.com/forum/uploads/45E_stock2.jpg
stock disc and cover


http://www.dieselplace.com/forum/uploads/22Z_s1.jpg
http://www.dieselplace.com/forum/uploads/BE7_s2.jpg
suncoast single disc


http://www.dieselplace.com/forum/uploads/E73_t1.jpg
http://www.dieselplace.com/forum/uploads/DCA_tr2.jpg
suncoast triple disc


http://www.dieselplace.com/forum/uploads/245_cnc.jpg
http://www.dieselplace.com/forum/uploads/659_cmc.jpg
cnc equipmentEdited by: sdaver