da_vato

how does your truck feel off the line?

Atomic

iTrader: (42)

very strong

I have 35" tires with 4.56 gears, but even so it feels great off the line.

cmitchell17

I used to run about 26-28 at wot. Now im running about 24-27 at wot with a leaner 13-13.5 AFR. It would knock with the 26-28 12.4-12.8 AFR.

I run about 27-29 on my E85 tune.

I don't notice any diffrence no matter what afr and timing I run.

Denali Dude

Not to Hijack the thread but im also having some problems wit my tune.

I didnt notice any difference after my tune except the shifting formness and the torque managment removal .

Off the Line its way more slower than before and after 3000 rpm its good thats in first the shift point is 5800.

the scond gear it starts pulling at 120 km/h forgot what rpm was that on maybe its on 4000 or 4500 and the shift point is set ar 6000 rpm and the third gear no problem with that cuz I dont go more than 170 or 180 km/h

Talked to my tuner about that problem he said thats normal after tunning the 08 5.3 CC But whats disturbing me is that I have the 3.73 gears and dont feel difference off the line when compared to a 4.10 they get off burning rubber me a smal wheel spin stops then after 3000 rpm spings again thats on a road with little sand on it.

Atomic

iTrader: (42)

Did he do anything about abuse mode? Thats what prevents you from doing brake stands.

Denali Dude

Yes I think he did something with the abuse mode. What should I tell him to do to make it go off the line faster?

1 more thing I have the stability trac systm I keep presing the traction button for 15 seconds to turn it off but it wont also do a burn out

BlackGMC

iTrader: (31)

I hope you lowered or zeroed out the Fuel Mixture Spark Correction table, because it will also add to your Hi/Lo octane table depending on the Commanded AFR.... So with that said your probably still commanding too much timing, even with the 7* taken off the first post.... Also did you tune/adjust the VE and MAF with a wideband? If the VE and MAF are not tuned you will be referencing the wrong cells in the Hi/Lo octane table... This is why you always tune the VE and MAF tables first before you adjust the spark tables.... You can't just adjust one table and expect the truck to respond properly, the computer uses many tables in concert.


Just my .02.... I might be wrong thou....

Atomic

iTrader: (42)

My base Spark Correction table is zerod out but the Mult table had this:

Labels 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Multiplier 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.08008 0.15991 0.23999 0.32007 0.39990 0.60010 0.80005 1.00000 1.00000 1.00000

And yes I tuned MAF and VE already.