At wot at lower rpms (idle to 3500) how much timing could I run? Essentially it is not making much boost down there, so could I run near a NA set up timing down there? How much timing do NA set ups run down there? I'm trying to help my truck come out of the hole because I run a stock stall and don't want to change that. It currently flashes about 2800 and lm at 22 degrees of timing and the timing falls to 17-18 as rpms and boost increase.

 

How much boost are we talking? Is meth already spraying by 2800?

I'd basically try a few street launches adding a half degree at a time to see how it feels.

 

Up ro 3500...35 to 30* ramped....shouldnt have to pull timing till about 5 psi even on 93 if compression is within check...higher compression will run less timing

 

You can gain a lot out of the hole by tuning your fuel and timing at launch.

 

I run 50/50 meth,water and it starts at 2psi and ramps up to full spray at 9psi. I'm seeing 16psi at my 6000 shifts. In the lower rpms out of the hole I think I could add timing. I put a pic of one of my last passes at the track.

As seen in pic when I launch I'm at 21 degrees then it ramps down as boost and rpm climb. (Procharger = linear boost with rpm)

What amount of timing would you run in these lower rpms that I only see in first gear and then by 4000 it would be down to 18?



Also this is a head studded/ls9 gasket- LQ4 (2006) in a 5400 lb. truck.

 

Hard to say withou seeing a log, kill your TQ management and get a cooler t-stat in there.

 

What would you need a log of? That's the log of a pass at the track. I run the tm because I broke hard parts on this 80e twice(a stock input and then the pic below with a billet input).
This is a 180 stat, fans on at 205 off at 200.

Do you run a 160 and what is the on and off fan temps?

 

Not all billet 80e shafts are created equal. Find a billet shaft that blends the splines rather then ends abruptly with a seam. That's where they all break. As for what to see, a screenshot doesn't give a whole lot of info. I mean the ability to actually scroll across it and compare MAP, fuel, spark etc. not so much a screenshot.

As for fan temps, I would have to look at my tune. I forget.

 

Stock style, also same as many billet ones.



What I am refering too

 

Other end. Stock style



What mine is