Hey guys I wanted to post my current tune and a log file up here for review. Any suggestions or comments are greatly appreciated. The truck runs ok, but I think it can be much better and could use some direction on what to work on.
Thanks.

 

Have you put it on a wideband?

 

Nope no wideband. I am holding off on buying one until I get headers. I'm trying to hold off on spending anymore money until I get my old 4x4 sold. It has been hard to find someone who wants to buy an off-road toy with a 400 hp 383.

I haven't even attempted to do any VE tuning yet. I am hoping to get started on that asap.

 

What octane fuel?
Do youhave any logs?

 

91 octane fuel. The most recent log is posted with the tune up there and here is another one from earlier the same day. Only minor changes in the tune between these, mostly some tranny stuff. As you can probably tell I am new to tuning so am still trying to learn as much as I can. Thanks in advance for any help and suggestions you can give me.

 

You are getting some KR and without a wideband you might want to bring your PE up some.Even though you are comanding a 13.0 A/F with your PE,if the MAF is not dialed in then you are not gonna run what you are comanding in PE.
The best way to do this is with a wideband.
Some of that KR at WOT could very well be that it may be lean.Your o2 Mv's are alittle low at WOT,even though the narrowband o2's are not accurate at WOT I would still give it more fuel until you get it on a wideband.

 

Ok so does that mean I need to raise some of the numbers in the EQ Ratio vs. RPM table to accomplish this? I thought from my limited knowledge that it is running lean at WOT I guess I'm just not sure what I need to adjust to deal with it.
I may be getting a wideband sooner than expected if we get a good deal on the GP of the PLX unit. That is the unit I have been looking at buying anyway.

 

It very well could be and is runing lean at WOT.yes bing those values up some,if ou are not sure to what emailme at vortec350@gmail.com

 

man you really need to get a wide band to really know what a/f your running..if wheatley cant get you figured out bring your laptop march 24th and ill take a look..never messed with HPT but id atleast would like to see how HPT works

 

I am planning on bringing my laptop with me on the 24th.

I raised the values in the pe table and logged on my way to work this morning. It looks like it helped some from what I can tell without a wideband of course. I think I still need to raise them some more. I just glanced at it before I came in to work but I think my narrow o2's were reading around the 880 mark at WOT. I didn't really get to do much driving at WOT this morning so I will work on it after work and I will give you an update then.

Thanks for your help Wheatly I may be e-mailing you with some numbers later for you input.