'06 48RE - TC/VB or Full build
11-07-2006, 11:03 AM
#46
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First, Dave Goerend doesn't recommend a flexplate either. What most places haven't figured out yet. or don't want to share and lose a sale, is that the problem with broken flexplates is not the flexplate. It is the TC. There is inconsistancy in the surface plane of the tabs that bolt the TC and flexplate together. If they are not exactly, when you tighten down the bolts, it puts stress on the flexplate which is what eventually causes the failure.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
11-07-2006, 11:48 AM
#47
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First, Dave Goerend doesn't recommend a flexplate either. What most places haven't figured out yet. or don't want to share and lose a sale, is that the problem with broken flexplates is not the flexplate. It is the TC. There is inconsistancy in the surface plane of the tabs that bolt the TC and flexplate together. If they are not exactly, when you tighten down the bolts, it puts stress on the flexplate which is what eventually causes the failure.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
11-07-2006, 04:44 PM
#48
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I am a cummins newbie compared to most of you...but I do plan to eventually upgrade my trans.
Here's a couple of semi off-topic questions for you all:
Do the upgraded trannys affect mileage at all? I would think that less slip would create a higher efficiency and increase mileage, no?
How about the harshness of the shifts? The stock tranny is smooth when shifting (mine is at least). I see this as a bad thing
, meaning it is allowing itself to slip some to simulate smooth operation. Are the aftermarket trannys harsh, and not 'street friendly'? I'm sure there is a noticeable difference, but is it enough to become bothersome when just daily driving?
Also, SubSpd, I too am from San Antonio, and would like to know who you end up going with and if they are local. If you get it done, I'd also like a ride in your truck if you dont mind. I'm still a good ways off from tranny upgrades, but some day (gotta get my wife through med school first!)
Take care,
Shawn
Here's a couple of semi off-topic questions for you all:
Do the upgraded trannys affect mileage at all? I would think that less slip would create a higher efficiency and increase mileage, no?
How about the harshness of the shifts? The stock tranny is smooth when shifting (mine is at least). I see this as a bad thing
, meaning it is allowing itself to slip some to simulate smooth operation. Are the aftermarket trannys harsh, and not 'street friendly'? I'm sure there is a noticeable difference, but is it enough to become bothersome when just daily driving?Also, SubSpd, I too am from San Antonio, and would like to know who you end up going with and if they are local. If you get it done, I'd also like a ride in your truck if you dont mind. I'm still a good ways off from tranny upgrades, but some day (gotta get my wife through med school first!)
Take care,
Shawn
11-07-2006, 09:31 PM
#49
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I just installed a Goerend Torque converter (stock valve body) and my mileage is up at least 1.5mpg.
Shifts feel firm, but not harsh in tow/haul mode. Without tow/haul, shifts feel about the same- but tranny feels much better than stock. Overall, I am pretty pleased.
Mine is a 2006 QC 4X4 with 14,000 miles on it.
Shifts feel firm, but not harsh in tow/haul mode. Without tow/haul, shifts feel about the same- but tranny feels much better than stock. Overall, I am pretty pleased.
Mine is a 2006 QC 4X4 with 14,000 miles on it.
11-08-2006, 12:24 AM
#50
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DTT has a triple disk. Pryed a little and found out why but not sure I'm allowed to release the info. It's definately not because their singles can't hold the power. Jim Fulmer is running a single disk DTT as is Rjohnson as is a bunch of other very high HP guys. I'm having a single disk installed in my truck as we speak. I have no doubt that it can hold what I want for power. Call up Stefan at DTT and talk to him. I, like 973604x4, have been around many of the other competitors and although Goerend's was incredibly impressive to me, I preferred DTT's way of building the tranny. Basically what it comes down to is price and who you feel comfortable with. Talk to the big guys and whoever you feel the most comfortable with and who you think will serve you best spend your money with.
11-08-2006, 01:10 AM
#51
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DTT has a triple disk. Pryed a little and found out why but not sure I'm allowed to release the info. It's definately not because their singles can't hold the power. Jim Fulmer is running a single disk DTT as is Rjohnson as is a bunch of other very high HP guys. I'm having a single disk installed in my truck as we speak. I have no doubt that it can hold what I want for power. Call up Stefan at DTT and talk to him. I, like 973604x4, have been around many of the other competitors and although Goerend's was incredibly impressive to me, I preferred DTT's way of building the tranny. Basically what it comes down to is price and who you feel comfortable with. Talk to the big guys and whoever you feel the most comfortable with and who you think will serve you best spend your money with.
Jim Fulmer is the 800hp 12 valve with a stock flex plate...and over 50,000 miles on his DTT. Rjohnson last i heard is well over 600hp with a 2 year old tranny, flawless i might add with a single disc.
Yes if you have your heart set on a triple disc, DTT will make one for you. Their singles work amazingly well. There is no problems with single disc trannies not holding under half power up hill....infact i know of DTT guys who pull 20k with the cruise control, uphill or flat.
Not bashing Goerend by any means, like i said i am wanting to go investigate one....i'm tired of only being able to read about Goerend.....
but DTT is a serious company with great products that does not need to be neglected in tranny talk, in my opinion.
hey tyler, tranny done yet?
i talked to him today, he said you are a little anxious.
11-08-2006, 02:49 AM
#52
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Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold
Also please name one good sledpullin truck that runs a single disc torque converter?
11-08-2006, 07:57 AM
#53
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It's called customer service, Dave has it...............
11-08-2006, 07:58 AM
#54
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Go to their web site you can read all about them.
11-08-2006, 11:27 AM
#58
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First, Dave Goerend doesn't recommend a flexplate either. What most places haven't figured out yet. or don't want to share and lose a sale, is that the problem with broken flexplates is not the flexplate. It is the TC. There is inconsistancy in the surface plane of the tabs that bolt the TC and flexplate together. If they are not exactly, when you tighten down the bolts, it puts stress on the flexplate which is what eventually causes the failure.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
Second, on the single disc converters. Dunrite also pushes a single disc and says that it holds up in 800hp trucks. But here is why. What are most 800hp trucks used for? Drag racing or sled pulling. In other words, wide open throttle conditions. They crank the VB pressure up so that at wide open throttle, there is enough pressure to make the single disc hold. Here is the problem with using that set up in your daily driver. Say you have a 15k pound load and are crusing down the highway and come to a slight hill. Let's say it is a hill that requires 1/2 throttle to maintain speed. At half throttle, you don't have full line pressure in the tranny and do not have enough pressure to make that single disc hold. If you have a bombed truck that is not gonig to operate at WOT all the time, you want a tripple disc that will hold when there is less pressure applied to it.
I think you shut him up with this one
11-08-2006, 11:45 AM
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I have a 99 24valve with the 47re with a freshened up trans but stock components. I have a billet single disc converter and a transgo shift kit thats it and I have done towing and drag racing without any problems. The biggest weak link is the converter and the valve body is programed for nice soft shifts. The Ideal would be to build it but if your not planning on going any further with power upgrades I would contact DTT or Diesel Trans Technologies. They have there stuff togeter. Oh by the way my truck puts down 485 rwhp and 1156 ftlbs of tourque. I also suggest using the factory fluid or AMS oil this will keep the thrust washer behind the sun shell much happier.