Livernois tuner for Powerboost?

[Eskram]

Very nice. You're making it hard to avoid getting this. Sub 5 second runs in a vehicle this big and brick shaped is crazy.

It is. I need to find the time and a level road to test out the Dragy..

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[Heavishot]

I received the 87-93 performance/tow and 91-93 performance tunes. Running the 93 and it’s perfectly fine as a daily driver with plenty of GO when you want it.

 

[Eskram]

It is. I need to find the time and a level road to test out the Dragy..

With a bit more practice, I'm sure I could get it down a bit. That was the first time I've launched the truck. Brake torqued to about 2200rpm in sport mode, with traction control off, but AdvanceTrac still enabled.

 

[TheGoatman]

Do it in tow/haul and it’ll break into the 4s

 

[Eskram]

Do it in tow/haul and it’ll break into the 4s

Hmm. I do now remember reading that in this thread, but didn't think about it at the time. ? I'll play around a little later today to compare.

 

[JIMFOUNTAIN]

Do it in tow/haul and it’ll break into the 4s

Interesting.. Any idea why Tow/Haul beats Sport?

 

[DBL R]

Interesting.. Any idea why Tow/Haul beats Sport?

Sport turns off the combustion engine at idle. Tow/haul keeps it running. 1 theory is oil pressure dropping and the ECU holding back boost until appropriate operating oil pressure is achieved.

 

[TheGoatman]

Yeah not sure. I tried sport first as well. The results were pretty clear at the strip.

In sport i kept the engine running by flashing the stall right to the point the tires wanted to spin. So the oil pressure was there. I can’t explain it

 

[HammaMan]

With a bit more practice, I'm sure I could get it down a bit. That was the first time I've launched the truck. Brake torqued to about 2200rpm in sport mode, with traction control off, but AdvanceTrac still enabled.

How is the top half of your graph showing negative G?

 

[Eskram]

How is the top half of your graph showing negative G?

Hmm.. I'm not sure. I definitely need to get a better run though. I was running out of room (curve was coming up) and I was letting off the throttle a little bit I think. The 1/8th mile graph from the same pull shows it even worse. heh

I wonder if the mounting could be better too.. I just slapped one of the magnetic plates on the bottom and put in on the center dash tray. Maybe it moved a bit when I launched?

 

[HammaMan]

Hrm, I don't have a draggy, but that just doesn't look right. Negative G being shown, yet accelerating?

PB is a beast. Wait until you see the E30 numbers

 

[Eskram]

Hrm, I don't have a draggy, but that just doesn't look right. Negative G being shown, yet accelerating?

PB is a beast. Wait until you see the E30 numbers

After comparing to a few other dragy screenshots, I'd agree it doesn't quite look normal. I'll try mounting it better and try on a different road somewhere soon.

Hmm. I just noticed one of the gas stations nearby sells E85.. Maybe I'll request an E30 map after I put a few more miles on this thing.

 

[TheGoatman]

After comparing to a few other dragy screenshots, I'd agree it doesn't quite look normal. I'll try mounting it better and try on a different road somewhere soon.

Hmm. I just noticed one of the gas stations nearby sells E85.. Maybe I'll request an E30 map after I put a few more miles on this thing.

Can you see if they have the e50 map yet too?

 

[HammaMan]

Can you see if they have the e50 map yet too?

The high pressure fuel pump can't flow enough fuel to make anything more than E30 viable. Will be confirming on the dyno early spring. Running lean is bad -- better to be safe.

 

[Eskram]

Still haven't had the time / chance to do another 0-60 run, but in daily driving, this thing is a beast. Transmission has smoothed out nicely: I dont notice the shifts unless I'm getting on it. It'll chirp third gear with TCS off. ? Smooth as butter in normal driving though.

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