Competition Single disk vs Tripple disc converter

[SLangegger]

What are the advantages/disadvantages to these two converters?(As far as the big 3 go)



Is one the clear leader in all types of competition?



Thanks in advance.

Slangegger

 

[HoleshotHolset]

Single VS. Multiple disk is a highly debated subject here on the TDR that has resulted in numerous wars and urination contests.



Bottom line: Some vendors swear by them and some swear at them.

Do a couple of searches on the TDR and read for about 3 weeks straight.



Better yet - go out and drive a few trucks with transmissions built by different vendors. You'll get a feel for how loose or tight you want your converter, where you want your shift points and how firm you want your shifts to be... that will help to sway your decision one way or the other, or just confuse the heck out of you. Be honest with your vendor about present and future plans for the truck - in terms of horsepower and what you're going to be doing with it. You're always going to upgrade HP, but you want to make sure you have enough headroom...



Good luck - it's a tough decision. Keep in mind that almost all vendors offer a solution that is 1000 times better than OEM. Research, research, research and then slam down the cashola on what YOU consider to be the least of all evils.



Matt

 

[JoshPeters]

The single disc converters can hold some power. No doubt about it.



The Tripple disc converters can handle more. It's basic hydraulics really.



If you abuse your truck, like most of us do. (Heavy acceleration during lock up, premature lock up, exhaust brake, etc) The tripple disc is IMHO the way to go.



As far as each vendor goes, Matt is right. Each has their own way of saying "Mine is best!"



I have ridden in trucks with DTT, Suncoast and Goerends. I hear ATS makes a nice unit as well. Each has their style. DTT is hard fast firm shifts, Suncoast I couldn't tell much if any difference from stock, and Goerends is very smooth.



Each have their ways to build converters. ATS is runs a loose on the bottom RPM, tight on the top RPM converter, DTT is pretty tight on the bottom RPM and loosens up slightly on the top RPM. Goerends, it depends on which converter you get. He has one simliar to DTT's, and another one that starts out Tight and stays tight all the way through the RPM band. When it locks up it drops 50-75rpm.



Moral of the story... ...

As of right now I belive DTT has the highst HP to the ground.

As of right now Suncoast has the Fastist truck.

As of right now, Goerends and ATS are sold by Haisley Machine



All good products hands down.

Josh

 

[SLangegger]

thanks for the responses.



Could you explain a little more about tight and loose? Tight and tighter? Starts out lose and tightens up?



Thanks again.

 

[JoshPeters]

Tight and loose... .



Is referring to the fluid coupling that occurs within the torque converter.



Basically a converter works like this:

Take 2 fans and face them towards eachother. Turn the fan to the right on. The fan on the left spins. Not as fast as the one on the right, but spins none the less.



They do basically the same thing within a converter, but they add one part. There is a disc with fins in the center about the size of a softball in diameter, and about 1inch thick. That's called the Stator. By changing how the fins on the stator are angled or shaped they can change how the fluid flows hitting the fan on the left. When they do that they change the effency.



The problem with that is, sometimes when you adjust that you will loose some of that fluid coupling (fan action) at low RPM's. Sometimes you'll loose it at Higher RPMs.



The tight and tighter I was referring to was a patented design that Dave Goerend has, that doesn't loose any of that. I can use mine as an example, it stalls extremely low (what I asked for) 1250rpm, and at WOT, 2000-2400rpm when it locks up it will only drop 50-75rpm. Most converters, will drop around 200rpm.



Josh

 

[JoshWoodruff]

I am a dealer for both Suncoast and ATS, both converters are great depending on the stall speed you are wanting and what you plan to do with the truck you can't go wrong. I have put four ATS five star converters in trucks that are daily drivers in between 300-500 HP. Its got its own feel to it for the money I would recomend ATS.

Josh Woodruff

www.woodruffdiesel.com

 

[Cooker]

Personally I do not see any advantage to a multi-disc when I have had absolutely no issues running a single disc. Multi disc might be better in theory but in the real world the is no reason for me to spend the extra money on a multi disc.



One other thing that is important to consider is the installer. The parts being installed might be great but the guy doing the work has to know what is going on too. With that said I know member LsFarm is a DTT installer and he is not too terribly far from your location.

 

[fox]

I will give my opinion, since you are asking.



If the guy who builds your transmission KNOWS these trannys and their design issues, he can build a very strong one. One that works great with a single disc converter.



If you want it more complicated, or some issue to claim to be different or bigger, you put in a multi.

Bottom line is, one disc is fine.

 

[CATCRACKER]

for high hp the only transmission company running single disk is dtt right the rest are running multi disc converters.

 

[Swayse]

I'd pay the little bit extra and get a 3 disk or 5 disk, but then you need a flex plate too. I'd rather have 3 or 5 disks doing the job that one disk could do. My single disk dtt went from firm lock up, to soft lock up, to slipping in 8 months, around 3000 miles. This truck is not a daily driver, when I take it out, I take it out to play.



My first converter started to get soft before my trans went out last time.

 

[mcoleman]

Was your DTT converter behind a DTT built transmission or one someone else built?

 

[justinp20012500]

YES!! Another TC thread!



http://turbodieselregistry.com/forums/showthread.php?t=142455



http://turbodieselregistry.com/forums/showthread.php?t=128925





Hey fox, remember this one?



http://turbodieselregistry.com/forums/showthread.php?t=127895



http://turbodieselregistry.com/forums/showthread.php?t=125628





Here is a recent one...



http://www.nwbombers.com/forum/index.php?showtopic=19294&hl=





Good luck on your findings. There is enough information out there to keep ones self entertained, I mean occupied for a week straight.

 

[Swayse]

Was your DTT converter behind a DTT built transmission or one someone else built?

DTT full meal deal, except middle shaft.

 

[tractorface]

A flex plate should be done for any transmission upgrade as far as I am concerned. As for weight. The shipping weight on my old single disc OEM was almost the same as the shipping weight on my GB triple disc. Not much difference as far as I can tell.

 

[Teacher]

Thread Responses

A flex plate should be done for any transmission upgrade as far as I am concerned. As for weight. The shipping weight on my old single disc OEM was almost the same as the shipping weight on my GB triple disc. Not much difference as far as I can tell.

I wish to commend all those who responded to this thread. They were all positive, lucid, educational and well intentioned. No one did any "flaming. " It was truely refreshing. Keep it up guys!!!!

 

[TurboTweaker]

I am running one of those tight tighter convertors that Josh speaks of but i had my stall speed set at 2100rpm so i could spool faster, and i like it up top.

Josh Peters has a very good post but there is one flaw in there buddy, the stator is about 8in across, a softball is about 4. 5in. :-laf just setting you straight josh



The Fat Kid

Andy

 

[Stefan Kondolay]

One thing that a lot of people aren't aware of is that DTT can build 3 disk TC's if that's what someone really want and you can get our steel stator in a 3 disk for less than most other Companies TC's. just remember that when you get a 3-disk with all the added weight you should look into a billet flexplate, which obviously increases the cost.

 

[JoshPeters]

I am running one of those tight tighter convertors that Josh speaks of but i had my stall speed set at 2100rpm so i could spool faster, and i like it up top.

Josh Peters has a very good post but there is one flaw in there buddy, the stator is about 8in across, a softball is about 4. 5in. :-laf just setting you straight josh



The Fat Kid

Andy

I do belive I said a bit larger than a Softball. I didn't remember exact dimentions. As the last converter I saw appart was a wee bit smaller than ours.



Josh

 

[bmoeller]

I've been very happy with my triple disc. If it weren't for the low speed towing I do, a single would've probably been just fine.



Just about any quality aftermarket t/c would probably be better than stock. My stocker was really loose POS.

 

[GWoody]

I'd pay the little bit extra and get a 3 disk or 5 disk, but then you need a flex plate too. I'd rather have 3 or 5 disks doing the job that one disk could do. My single disk dtt went from firm lock up, to soft lock up, to slipping in 8 months, around 3000 miles. This truck is not a daily driver, when I take it out, I take it out to play.



My first converter started to get soft before my trans went out last time.

Did DTT warranty the convertor????????