[dzlrig]

I wanna do some upgrades to my Tranny. Looking for a shift kit (havnt looked to hard) and also thinking of getting performance torque converter (havnt found any). I hear the stock converters stall at 2000 rpm and what you should want is one that stalls between 1300 - 1600 rpm does anyone know if this is true? If anyone has found a good shiftkit or converter let me know, Thanks

 

[kimagine]

I wanna do some upgrades to my Tranny. Looking for a shift kit (havnt looked to hard) and also thinking of getting performance torque converter (havnt found any). I hear the stock converters stall at 2000 rpm and what you should want is one that stalls between 1300 - 1600 rpm does anyone know if this is true? If anyone has found a good shiftkit or converter let me know, Thanks

Just hold on for little bit, if you want good, then just wait for Suncoast to finish the 4l80e they are in the process of producing .

Mark:beerchug:

 

[billyjackk2500]

SS diesel sells a nicely priced shift enhancer. A twenty minute install and you can flip it on for better response and power or off go back to stock. 50 beans.

 

[kimagine]

And if your just wanting a good shift kit, I'd go with the Trans-Go.

 

[kimagine]

SS diesel sells a nicely priced shift enhancer. A twenty minute install and you can flip it on for better response and power or off go back to stock. 50 beans.

Personally I would not install a shift kit unless I were pulling the tranny and do the proper cross-drilling to allow the higher flow of fluid. Heard of too many burn out by just being installed without the cross-drill.
Just my .02

Mark

 

[billyjackk2500]

The said kit I mentioned only increases line pressure,its not the type you have to drop the pan to install. Its a mere CPU recalibration, not a flow issue. Plus if are truly worried about your tranny scrap the shift kit and buy a bigger pan. It will lower trans temp and prolong the life of it.

 

[kimagine]

Now that makes sense. Not to knock the system you speak of, but how does it increase flow, without increasing flow space? Not trying to knock what you say, just curious.
I have been thinking of getting the bigger pan for mine, as long as the shift kit and upgraded TC, before I completly blow my tranny.

Mark:beerchug:

The said kit I mentioned only increases line pressure,its not the type you have to drop the pan to install. Its a mere CPU recalibration, not a flow issue. Plus if are truly worried about your tranny scrap the shift kit and buy a bigger pan. It will lower trans temp and prolong the life of it.

 

[Pillow]

Also some of the tuner Chips will alter tranny shifts as well as boost the engine HP

 

[DieselDufus]

B&M also sells a "shift improver" for the 4L80E. It too just increases line pressure by fooling the computer.

Before you go buy one though...

All of the shift "improvers" that are not installed in the valve body (reprogramming kit) simply "fool" the computer into thinking the line pressure is lower than it is. Thus, more pressure is "allowed" by the system giving you harder, faster shifts. It works well.

However, these $40-$50 devices are nothing more than two resistors. You can accomplish the same thing with a potentiometer (adjustable resistor) connected to the same ECM wires used by the shift "improvers". Then you have an infinite array of adjustment.

BUT BE CAREFUL! Too much line pressure and you will blow the case apart! Trans-Go has a kit that fixes a known overpressure problem with the 4L80E. By design, the 4L80E is supposed to "dump" extreme pressure and thus save the case. However, there is a chance that the factory valve will stick, causing the case to blow.

If you don't have the "fix" for the overpressure valve installed...be cautious.

Transgo kit 4L80E-HD2 notes:

Ends direct clutch burnup. Holds BIG horsepower. Holds 1st, 2nd, and 3rd to any speed. Backshifts to 3rd, 2nd and 1st at any rpm. Prevents broken case and drum due to high pressure.

 

[94blazer6.5]

I don't pull alot of wieght maybe 3-4,000 lbs 6 times a years and I don't really hot rod it much any more. So the best upgrade I've done so far is a drain plug in the stock pan. Every 15,000 miles or so I pull the plug and re-fill with 5-6 qts of fresh fluid. Every 30,000 mile or so drian it, pull the pan and put in a new filter and re-fill. Oh yea the stock pan has a spot on it on the drivers side that's perfect for a drian plug, least mine did. Just my .02

 

[neepsjeeps]

Transgo hd-2 kit is great for pulling or daily use, and it allows me to use the engine for braking as well, a electronic resister device would boost the line pressure but could cause damage from too much pressure and it wont gain you the advantages that a shift kit would, also see kennedy diesel site they use the transgo...

 

[BKNOPP]

I am pretty sure that the shift enhacer ssdiesel sells is the B&M shift enhancer minus the B&M packaging. FYI.