They use a converter core out of an 8.1 gas motor. The stall is way too high (400 rpm higher than diesel). I would imagine they have to cut the stator to lower stall and kill the low end while they do this.( no torque multiplication) You cannot increase converter clutch area without billet cover unless you overlap lock-up piston with a bigger lining. Kinda like putting a 10X10 rug in a 9X9 room.
What i would like to know is, why does this outfit have Joe Webbs Duramax, parked in front of Suncoast i might add, in their advertisement? You will notice the Yukon next to it, that belongs to Joes wife. The pictures of the clutches are out of a Turbo 400 not Allison. Seems like they are getting a lot of things wrong.
The items shown on thier web site are NOT Sun Coast. The master kit offered is NOT the Power Pak developed by Sun Coast/Alto. The torque converter offered is NOT a Sun Coast. Don't be too hard on the guy, maybe he did not want to put out the $43,000.00 to buy a truck to do the research on. Maybe they would like Sun Coast to send some pictures of their twin turbo Dodge and that big bad PSD Ford .
Dime a dozen. Want to buy some? These converters are pretty close to the diesel except the stator. The 8.1 stators have smaller openings(we call them windows). They will never work properly, you will have no low end and torque mutiplication will be nill if they are modifyed for the diesel(lower stall). If they are not modifyed, the high stall will kill any power you have(it will be useless rpm's making noise and nothing else.) Diesels have a very small window(rpm wise) for making power. Torque converter design is critical in making the torque between 1600 rpm and 3200 rpm in the Duramax. Many converter rebuilders use Cummins experience to build converters for the Fords(which make no low end power) and the Duramax which has a much broader torque and horsepower curve.(Cummins starts its power at around 1400 rpm and is finished at 2600 rpm) that converterwould kill a Ford PSD and a Duramax. Some people are in it for the money and don't care. Don't be fooled by price. Do it right the first time.
Dont worry I wouldnt ever get that, I am going triple disc. I just wondered where all the cores are coming from, have that many already been replaced? I understand what you are saying about the stall and rpm range, there would be a huge difference between the max and 8.1.
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