RaceHemi
07-20-2004, 01:26 PM
The truck should come from the factory with this tune! I opted to purchase a reprogrammed ECM from Steve vs sending my ECM in to be reprogrammed, mainly for warranty reasons and also didn’t want to disable my truck while waiting for mine to be reprogrammed. Previously I tried the TST, Predator and the Hot Juice on my 02, then I tried the Quad module on my LLY, I do not have gauges, dyno numbers or drag strip time but I am somewhat familiar with how the LLY and LB7's drive and perform on a day to day basis under varying conditions. The LB7 Hot Juice seemed to have a surge of power when the boost came up, very sensitive to throttle input but the trans did not have a consistent smooth shift, some times it would shake your fillings on the 2-3 shift although it never limped the trans, all in all a great module for towing. The LB7 TST ran great but my stock Allison could not take the power and it limped a few times in 5th. The LB7 Predator was the initial release and really did not compare to either the TST or the Juice. Regarding the LLY Quad, the low setting was by far the better of the 3 tunes. It worked reasonably well when I towed with it, however I did not care for the turbo lag, shift quality, or the inconsistent and some times surgy power delivery on the 90 and 120hp tunes. Depending on t/h or normal mode the truck seemed lazy or unresponsive at times until the boost came up. After 60 miles unloaded with the TTS tow tune installed here are some quick observations and opinions based on my experiences with my truck using my arse meter, so take it for what it’s worth!
Pros http://www.dieselplace.com/forum/smileys/Rock On.gif
Very smooooooth linear feel to the power band, no rush or surge as boost builds, builds boost at a much lower rpm.
Turbo seems louder at low rpms
Turbo lag at low rpms is all but eliminated.
Excellent throttle response at lower rpms, similar to that of a gasser.
Trans shifts great, minimal learning curve(or is my right foot learning to help the Allison learn as quickly as possible?)
Light smoke or haze at WOT
No defueling or power drop offs at shifts
Cons –
4 week deliveryhttp://www.dieselplace.com/forum/smileys/Disapprove.gif Worth the wait? Yes, but frustrating nonetheless, my customers receive product the next day.
Great tune Steve!
The quad also limped my engine at WOT, 5th gear in level 2 and 3.
Edited by: RaceHemi
Pros http://www.dieselplace.com/forum/smileys/Rock On.gif
Very smooooooth linear feel to the power band, no rush or surge as boost builds, builds boost at a much lower rpm.
Turbo seems louder at low rpms
Turbo lag at low rpms is all but eliminated.
Excellent throttle response at lower rpms, similar to that of a gasser.
Trans shifts great, minimal learning curve(or is my right foot learning to help the Allison learn as quickly as possible?)
Light smoke or haze at WOT
No defueling or power drop offs at shifts
Cons –
4 week deliveryhttp://www.dieselplace.com/forum/smileys/Disapprove.gif Worth the wait? Yes, but frustrating nonetheless, my customers receive product the next day.
Great tune Steve!
The quad also limped my engine at WOT, 5th gear in level 2 and 3.
Edited by: RaceHemi