Awesome, thank you for prompt reply.
I will start with lift pump, air intake and exhaust while educating myself about efi live ;O)) Would like to learn how to use it before i install it.
Once efi live done how often you modify the settings? Or it really depends on where and when you are driving?
I am going to pull 4 cars hauler, trailer by itself is around 7200lbs.
Thank you for you help!
First thing you should know about me is, I post novels!
:rofl: :roflmao:
But I do it because I try to be as thorough as possible to provide the best info I can without seeming "elusive" al in an effort to help and keep the desire for performance fire stoked
:thumb:
Installing tuning from an AutoCal is a breeze. There's really not a whole lot you need to "learn" you just contact your tuner of choice, they load tunes on the AutoCal for you, then you plug into the OBD2 port under the dash just left of the steering wheel. You pull and save your stock tune file to wipe the ECM and ready it for the performance tunes and then load the tune file. The initial process takes about 15min 7 to wipe the ECM and another 7 to load the tuning.
EFI live offers multiple options for tunning. You can get a single tune, 3 position tuning switch (DSP3) or a 5 position tuning switch (DSP5). "DSP" stands for Duramax Selectable Programming. The switch gets wired into your ECM and is simple to do, yet it's the most difficult part of the whole process.
You're gonna probably start like most of us do with "stock trans tuning" and a DSP5 switch. On a DSP5 you'll have an optimized stock, a heavy tow, a light tow, a street and a race tune. Stock trans tuning would be (respectively) stock, +50, +90, +110 and +130-150 wheel horse power (whp) over stock power output.
Because of the Allison Transmissions purpose built nature, it's not really up to the task of handling all the extra power tuning can provide, roughly around +90whp the transmission will start deteriorating. With a heavy foot and anything +90whp you can find yourself in need of a transmission rebuild very quickly. For this reason a TransGoJr shift kit is a necessity. It's not a be all fix all addition, but installing it before or with tuning and not after, will do your transmission well to live a longer life with the added power. They cost about $100 bucks and take about 2 1/2 hours to install.
You can save some money by modifying the stock air intake with the PPE air intake mod, you can do this in about 30min with basic tools in your garage, there's no real need to buy an intake as the Donaldson air filter flows plenty and is a really good filtration unit. The air box just needs to be modified a bit to allow for more air flow.
Once you've got everything done, you really don't need to change/modify anything in the tune, but if you get tuning and THEN start adding things like DPF delete, EGR delete, exhaust, turbo swaps, injectors, etc etc, you'll need the tuning calibrated by your tuner.
And there's where the AutoCal falls short, you need to have your tuner calibrate for ANYTHING! Even tire size changes...and, once you buy an AutoCal it's only good for tuning from the guy you bought it from. If you're planning on trying tuning from multiple sources, your best bet is going to be to just buy an EFI-Live V2 tuning suite from the get go, it's about 2x the cost upfront but it's much more versatile and will allow you to adjust for tires on your own and accept and load tunes from anyone.
The cool thing tho, you can change tunes on the fly by flipping the switch at any time! Just be careful and smart about doing it, you don't want to go from your heavy tow 50hp tune to your 150hp tune under WOT or even at a light if you decide to race someone...
PPE makes a programmer that is EFI-Live based that can handle tire and gear changes tho if you're concerned about that, it's called the Hot programmer.
Like I suggested earlier, use the search function on the forum select the "advanced search" button it works better, read a bunch and inform yourself before you start buying stuff, before ya know it, you'll be writing post like this to a new guy