I really wish I knew what max. setting I run with on the Juice on a full time basis that I wont have to worry about killing my Tranny.


Do we really know that if you run on, say, level 3 day in and day out that your Ally is safe?


I guess my question is:


If I set my Juice on level 3 and Low-boost on level 3, will I be ok for the long run?

I leave mine on level 3 and 1 boost. I dont like all the smoke. It raises my egt's and soots up the oil. Not to mention it smokes everyone at the green light out when I floor it.

I dont floor it very often. I use a rolling throttle off the light. I try to take it easy on the allison.

The Edge guys were not able to slip the 1-2, 2-3, and 2-3 shifts on a stock tranny even when applying over 900 ft lbs of torque. However, they did slip the 4-5 shift with 680 ft lbs.


The Juice (90 HP) and Hot Juice (125HP)are set up to defuel at shifts and if the tranny slips. It would be very hard to hurt your tranny with either of these.


However, the Juice w/Attitude is a different story. If you set it up to not defuel at all, you may indeed hurt your tranny. I have mine set up to defuel only on the 4-5 shift.


Aaron told me I could slip the tranny on launch with the Attitude set on max if I stalled against the convertor in 4WD. So I don't do that. I did do that a couple times when I had just the 90 HP std Juice.


BTW, I run mine on 5/5. I do not get excessive smoke even at WOT. Could be my secondary fuel filter has something to do with that, but I am not sure.Edited by: afp1

Ok cool, I leave it set to defuel on all locked shifts just for that reason.


so it sounds like Im pretty safe on 3, 3 with defuels right?


I dont get any smoke really on 3, but on 4 a bit and 5 ALOT. I dont care much for the smoking thing either.


Since I've had it, I did do one 5, 5 in 4x4 AND powerbraked it to launch against a buddies Dodge. It was kinda .... violent (for lack of better word) but he got smoked in two ways http://www.dieselplace.com/forum/smileys/Approve.gifhttp://www.dieselplace.com/forum/smileys/Big Smile.gif


I wont do it again though.

Guys,


The smoke is way down on my truck since I installed the Banks exhaust system. The turbo spools up so much faster that it helps burn the extra fuel.


Here kitty kitty. I'm seem to have lost my kitty cat. And you won't believe the difference in throttle response. I wouldn't have thought it to be this dramatic but I'm impressed. For you guys with stock exhaust systems and cat. Lose them and get an exhaust system from any of the aftermarket vendors here on this forum. You won't be dissappointed.


Oh and by the way level 5 and max low boost in my truck was never a problem for the tranny until the exhaust system was installed. Now it is screaming for mercy.

Guys,


Here kitty kitty. I'm seem to have lost my kitty cat. And you won't believe the difference in throttle response. I wouldn't have thought it to be this dramatic but I'm impressed. For you guys with stock exhaust systems and cat. Lose them and get an exhaust system from any of the aftermarket vendors here on this forum. You won't be dissappointed.





Trippin,


I think I'm going to quit reading any "kitty cat" posts from you.....http://www.dieselplace.com/forum/smileys/Ermm.gif


I live in one of the four Counties in this State which require diesel emissions testing, so your tales of how well your truck runs without said "feline" are depressing.....http://www.dieselplace.com/forum/smileys/Cry.gif


Sounds like you've come up with an excellent performance mod for your truck tho, and I can't wait to get something to fill that niffty ATS bracket you found, which is sitting on my coffee table with no expected fill date from Edge.


As a famous cat hating dog might say....Curse you Red Baron......http://www.dieselplace.com/forum/smileys/HiHi.gifEdited by: Zeeb

Zeeb,


I'm sorry! http://www.dieselplace.com/forum/smileys/Embarrased.gif I'm just so impressed by these trucks I feel the need to share. If you check my pics you'll see that the cat can easily be bolted right back in if needed. I don't know about other systems, they may be the same. But kudos to Banks for this! Does that cheer you up some?

Trippin,


Not really, but I did send Banks an e-mail requesting information on their CAT back system. They sent me a whole packet of stuff about their products and not one mention of the system I inquired about.


There was a salesman's card included and a note saying he'd contact me in a few days, so we'll see what they've got that might fill the legal bill and maybe a change out scenario. I'm not really thinking too hard about that since I can't see changing the stuff every time it's got to go to the dealer or get inspected, but I'll look.....http://www.dieselplace.com/forum/smileys/Ermm.gif

2MUCHFUN,


Its like you were reading my mind. I've got the edge and attitude on my 03 and I'm really paranoid after reading some of these post. I enjoy the new power and drive mine on level 2 boost 3. I did a run on 5/5 and the edge defueled 40% according to the attitude. I got nervous and went out and changed to mobil 1 synthetic trans fluid the next day. Probably didn't change anything if the damage was already done but I felt better. IMHO trans life depends on how ya drive em. I'm not doing an redlight racin or heavy towing so I'm not real worried but a little peace of mind would go a long way. Somebody chime in and tell us if we're buring up our expensive Allisons just driving to work.

Your Edge might have defueled becuase the EGT's were getting close to the 1350 default setting not because your transmission was slipping. Just a thought......


Jesse

The transmission can not take over 90hp. Rule of thumb on any trans application." All factory ratings on transmission capability is 10% over stock". That means that the factory overbuilt(in their feeble minds) the transmission to handle 10% more power then their ratings.http://www.dieselplace.com/forum/smileys/HiHi.gif A Transgo shift kit and h/d converter will handle up to 500 rwhp. That means you can run your Edge on the non defueling setting without trans slippage. I am running a TTS experimental tow program(somewhere between 80-100 hp) and can buzz the trans in upper gears when pushed. I will not install higher program untill Transgo and converter are installed. Neither should you guys. I know, I know it's more fun your way, but it aint right.http://www.dieselplace.com/forum/smileys/Big Smile.gif


mike

Though HP is what accelerates us down the road, HP does not rtear up transmissions. Torque is what tears up transmissions. Torque is the force applied to the input shaft. HP is that force in motion.


The testing Edge has done shows the stock Allison can handle over 900 ft lbs through 4th gear. However, the 4-5 shift clutches can slip at 680 ft lbs. As long as you have your Attitude set up to defuel for the 4-5 shift and don't do any full stall launches in 4WD, you will not hurt the tranny.

It's already been established that the stock Allison can hold at least 900 ft/lb on the stock clutch packs from 1st thru 4th. The engine can't produce that kind of power with any deisel tuner on the market. So the trans can hold that power, without slipping the clutch packs, under full throttle with any tuner in an UNLOADED or empty truck.


The stress thats going to burn up the trans comes from two things. First the stock slow shift between gears to soften the feel of the gear change, which slips the packs between the gears. The answer to that is to shift quicker and firmer with a shift kit. If you drive the truck hard with a tuner and no shift kit you are reducing the life of the frictions.


Second, adding power with modules etc., and towing heavy loads at hiway speeds up big hills in 5th with the torque converter locked up will show up the weaknesses of the Allison. The big torque of the modified Duramax under load will slip the stock torque converter lockup cluch and also slip the 5th gear clutch pack due to the fact that 5th is an overdrive and the leverage advantage is on the driven side not the driving side. This is when you need to spend the big bucks and upgrade the converter and 5th gear. Driving to work with a Dmax and a tuner won't hurt your tranny unless you do brake stands all the time.

If you drive the truck hard with a tuner and no shift kit you are reducing the life of the frictions.


Driving to work with a Dmax and a tuner won't hurt your tranny unless you do brake stands all the time.





OK


Which is it?

Maxed,


I agree. Hard pulling with heavy loads and a power module are where the tranny is most likely to slip. that is one of the reasons Edge doesn't recommend towing past level two or three--I can't remember which.


Of course, I am also assuming no full stalled 4WD launches.

that is one of the reasons Edge doesn't recommend towing past level two or three--I can't remember which.


I think they recommend the lower levels when towing due to excessive EGT, although slipping the Allison could also be a reason. I just think it can slip in 5th with or without a trailer, and it doesn't have to be during the shift. I'm running a 165hp tuner, and mine might be slipping in 5th, but the shifts seem fine.

Maxed out: Correct me if I'm wrong but the Quad 215 makes 424lb ft and if the D makes 520 from the factory that equals (520+424=944) 944lb ft. at the crank with nothing more than the tuner.

there is a solution look in my sig under suncoasthttp://www.dieselplace.com/forum/smileys/Approve.gif

Trippin,


I have the same issue with lack of smoke ever since I installed my Kennedy 4-5 exhaust. I can get it to smoke if I really try though, but only for a second. I wish there was a button where you could add smoke on demand.