TLDR:
Cant find a 12587603 bin for 4.8 4l60e 2wd silverado.
So if you have one, please share it.
If you have a good source for 12587603 with 4.8 bin files please share that.
Long version:
I have a plan to go from a mostly stock 4.8/4l60e truck to a cammed turbo 6spd manual flex fuel truck in stages with minimal downtime and without changing so much at one time that I cant figure out what the issue is. You dont have to read it but my entire plan from my personal notes is below just to share and show that I do have some thought and understanding in all this... I just cant find a good starting point to swap the truck over to the 12587603 OS.
I can find random BIN files, for example I can find some 04 4.8L Express-Van files, but they're DBC instead of DBW and wrong transmission.
Or I can find files but they're from efiLive or hp tuner files, so I cant get a bin from them to start from.
For some reason a 12587603 with 4.8/4l60e bin file just isnt possible to find with googling.
This is my long term plan for going from stock to cam/turbo with BoostOS, if you have thoughts you want to share on that as well:
Truck plan from PCM perspective:
Code: Select all
1. Convert mostly stock truck to 12587603 OS
2004 4.8 LR4
stock 4l60e
E-fans enabled like stock
VATS off
Drive truck for a bit to make sure all is good.
All mods with TunerPro so I dont burn a HPtuners license for no reason.
Using a second PCM so stock one is unchanged
2. Segment swap transmission for T56 Magnum F swap.
Drive truck with 6spd swap to make sure all is good.
At this point I can license HPtuners to the BIN since I wont be segment swapping it anymore.
3. Turn on and tune to allow flex fuel.
Swap injectors
Larger fuel pump
Set injectors for return style fuel system
Change to Speed Density tuning only.
Start logging wideband via EGR
Drive truck for a bit to make sure all is good. VE tweak as needed.
4. Add cam/springs.
Tune VE with wideband.
Swap to premium fuel only
Roughly tune NA spark table areas (premium pump gas)
Drive truck for a bit to make sure all is good.
5. Swap to boost OS V5 with current tuned tables copied over.
VE tables should copy over directly to 2 bar.
Single wideband can be used for fuel trims
Fine tune NA area of spark tables based on MAP vs RPM table like a standalone.
Drive enough to ensure no odd issues with the 2bar tables
6. Swap to 4 bar tables using data from 2 bar tables.
Compare daily driveablity. Do we want to run 2 bar only or can we run 4 bar tables?
7. add 2.5 or 3 bar MAP sensor. Verify no behavior change.
scale out VE and spark tables for safe boost
fix remaining issues, if any.
Change to colder plugs (just to see if drivablity changes, shouldnt foul, etc)
Drive truck for a bit to make sure all is good.
8. add turbo and boost with smallest springs (roughly 6lbs)
At this point fuel is covered and its the same tuning as above, but in boost.
Should be comfortable with tuning this engine by now.
Make sure all boost safety tables are set.
9. When wastegate is dialed in safely, wire in boost control solenoid.
Start raising boost control tables, and tuning higher boost levels until a limit is reached
Limit would be fuel, injectors, wastegate, etc. whatever. at this point its plenty.
Track wastegate PWM percentage with MAP levels for dyno.
10 Finally dyno the vehicle.
Fueling should already be spot on.
Tune Spark tables first on wastegate
Use data from step above to raise each kpa level to tune spark vs MAP table
Tune conservatively with pump gas, then drain, tune with E85 for power.
Bring empty fuel jug to drain tank, and full E85 pump gas to fill it.
Bring fuel line with connector to have pump drain itself into the jug.
Test E85 before going. If needed add straight E100 to measure closer to E85