I have a 04 D-max with a LB7.. Its taken a beating from everything.. I've ran everything from the pup at 95 and the Edge at 125 (with the 5th locked out). Ive ran up to 95 on the pup and 95 on the Edge going into 5th and it barely showed signs of .06 slip like a mili second or so. Ive ran it up into 5th on 95 / 75 god knows how many times.. Tranny has never had any problem.. It is a trooper.. what I was wondering is would it be safe to say that I could probalby run like a Quad 215 or something on it sometimes?? I'm looking for 13s in a 2wd with a stock ally !

When I started to use the over 125 programs "sometimes" I quickly found the need for the Suncoast. This will happen to you too.

When I first started stacking I didnt have any limps either. I was stacking a 90hp juice and 100hp Predator and the tranny didnt limp for a while. After a while it will start slipping and limp a lot more often. It you get a 215 it will probably limp it within the first couple of hard pulls into 5th gear.

Just remember that once it starts to slip, it can degrade rapidly. It will stay pretty tight up to its torque limit but the trick is not to exceed it is you want long life. If 13's are really you bag, you should lot into 4.10's axle ratios as that should give you 1/2 to 3/4 of a second at least and save some tranny strain while doing it.

WRONG! You will go slower with 4.10's!


These trucks leave hard enough and have enough problems getting traction. 4.10's would only make things worse. Plus, with the torque characteristics of a diesel, even if you could hook up you probably wouldn't run any quicker than with the 3.73's. For sure the mph would likely drop. Diesels like to be loaded hard, 4.10 gears would lessen the load.

I doubt that,this is nonsense. It would help the midrange and top end a lot. Just control the launch a bit. Never seen deeper gears hurt a ET unless they are so deep that engine redlines well before traps. ALso, deeper gears enhances traction at launch due to less axle housing wrapup from driveshaft torque at any given tractive effort load. This is drag racing 101.

snoflake you crack me up manhttp://www.dieselplace.com/forum/smileys/HiHi.gifhttp://www.dieselplace.com/forum/smileys/Rock On.gif


Anywho......one reason i suspect people run larger stacks with the juice and get away with it is the juice is probably backing out, JMO. And I also bet you arnt running much quicker with the juice set to 125 than with it stacked set on kill? Just a bit of theory on my part.....


Maybe some guys just have a realy stout alli from the factory? Maybe its a combo of all the above?


Quad dosnt back down.


The .06 flicker on the juice display is normal, its not showing actual slippage, I got that stock and even get it with my SCIII at a steady cruise.


And the juice display showing slipage is just showing the slippage of the converter. You trany clutch packs could be slipping like hell and it wont register.


I'm betting a 215 quad or a big VA box or a Steve cole extream will zing your ally faster it takes Mac to part with his $ at a nudy bar.http://www.dieselplace.com/forum/smileys/HiHi.gif

snoflake you crack me up man[

Not as much as you crack me up "mouser"

Snoman,


How many 1/4 passes have you done with your D/A truck?

None but he has beaten tons of em with his toyota because the duramaxes went geared right.http://www.dieselplace.com/forum/smileys/HiHi.gif


I actually dont own any sbc's right now, just a straight 6, my duramax, and a bbc. But I have ran a few of em....never knew anything about em apparently since I always tried to time em to 10 or so degrees inital or more if they could stand it.....shoulda backed em down to 4, that woulda made em run real goodhttp://www.dieselplace.com/forum/smileys/Ermm.gif. Maybe thats why you have such a hard on for deep gears?http://www.dieselplace.com/forum/smileys/HiHi.gif

I would think you may run out of motor with 4.11s in the 1/4. Aren't we hitting 5th at about 1/8 mile and pulling the rest of it in high gear with the clutch on?


mike

Snoman, traction is already hard enough to get in 4hi on a boosted launch, 4.10's would make it worse. Axle wrap isnt a problem as some are running traction bars or a different leaf spring setup. Let me guess, you have been drag racing diesels for years too huh??http://www.dieselplace.com/forum/smileys/Wacko.gif

Powell,


I ran the Predator 120 tune 24/7 for 5K before I limped it. Never been on the track but did lots of stop light launch's and 70mph roll-on'shttp://www.dieselplace.com/forum/smileys/Embarrased.gif

My Attitude display just recently started showing slip rates of 1.3% on the display in Level 5, I have periodically seen the .06% and ignored it based on the information here. (In 5th gear locked)


Is the 1.3% rate an EARLY sign of failure? Or something to be discarded as well. I generally run around town on L3, and whenever there is someone that needs a lesson I crank it up to L5.


I have never limped the tranny.


Thoughts?Edited by: andrewfessler

Your slipping the lock up disk in the converter, possibly slipping the clutches too, no way to know unless you tear the trany apart. Bet if you look at your fluid it aint 100% bright happy red, probably looking more of a dark chery red or it will go that direction fairly soon, JMO on that.


I never limped my trany but could slip my converter in 5th pretty easy if I truied and upon disection of the trans noted some signs of wear starting on some clutch packs.


Not really failure, you could probably pull the power away from it and run stock or lower levels and you would never know....but heading twards the path you are on now is going to result in you needing a rebuild or only being able to run stockish type power. Also JMO