04 Silverado turbo 6.0 help.

[Janke]

Ok this is probably not the best idea of a vehicle to learn to tune on but its what Ive got. 76mm stock 6.0/4l80e combo with, 60lb injectors, 3200 stall, plx analog wideband small..ish cam trying to make it work on e85 with open loop speed density. Ive been reading for a couple of weeks now. Managed to get it to pass inspection, now it comes down to making it run right. It has a baseline tune on it but its far from good and not properly configured for e85. I need a starting point.
janke1evap_0009.tun

[Janke]

Nobody? I got it running pretty good I'm having an issue with it pushing, off throttle coasting to a stop idles high, once the truck stops completely it idles great.

[64camino]

Not sure if it helps at all, but here is a current tune I am working with with my truck. It's not yet perfect on my truck, so by no means will it be on yours, let alone with e-85.
mybbdaily.ctd

[minytrker]

How much boost are you running? Your VE table and boost ve table should match in the 105kpa. Are you using the boost VE? I just looked at tune really quickly, Ill try to look at it later again.

[Janke]

I did figure out that my 105kpa tables did need to match. One thing I don't understand is the tutorials say log data until the cells reach 1 +-.1 when I log every cell never gets any better than 1.21. What does that mean?Also I follow the tutorials on auto ve and when it comes time to paisting my data I follow the tutorial and almost everytime it comes out wayyyy to rich. I'll post my current tune and a log file this evening.

[64camino]

Have you gone through the idle tuning tutorial? That may help your issue out.

[Janke]

Can you link me I've found several scattered threads on idle tuning. I'm not sure it's an idle issue because it does idle great it's just off throttle coasting where I have an issue.

[64camino]

http://forum.efilive.com/showthread....ul-Info-Inside

[Janke]

Im running a 12lb spring I see 10-12 lbs. Boost comes is really fast since im running some stupid .68 ar on the exhaust side. I need to change it to a .98 housing but im tired of spending money atm. Thanks 64camino ive seen that link glanced over it couple times. Ill sit down and really read it now. This is what I had as of yesterday.
janke1evap_0019.tun

04.03.efi

[64camino]

No prob. I would really watch your egt's and back pressure with that small ar. easy for them to get out of control real fast on a 6.0 and start burning valves, or the exhaust wheel itself. I have a .96, and still think it's too small. When it's hot, it spools so fast it's hard to drive on the street, like an on/off switch. I wouldn't take the injector tables in my tune for gospel either. Just the best i've come up with so far. I think ive tried 5-6 different methods at getting them to behave correctly