MillsMotorvation

Ok, I have a 3barSD tune, 80lb inject, and Meth(on at 7psi). LQ9-4l80E, 2step(3300),3.73gear,adjt Aero FP reg, 411PCM, GT91, 4inch FMIC. HPTuner

I went to the track to get some passes. Can get 3-4psi on 2step. running 10-15psi.The car runs a 1/2sec faster if I leave idle, because if I build boost It rich out the gate, and clears at the end of the 1/8 track. I have the Boost Enrich 1.26low/1.30high. I know the FP reg adds fuel with boost, don't want the meth to come in to late due to KR. Main VE seems right. Can any one help me get a better 60ft than 1.899?

MillsMotorvation

TT anyone

LSX Power Tuning

iTrader: (4)

When is your meth coming on?

Slowhawk

iTrader: (12)

I would say it's in the tune. Don't know HPT very good. I usually set the VE to compensate all meth use and there is no problem on the 2 steps.Mine sprays on the 2 step.

joecar

Sounds like VE tables and IFR table may be not correct.

I'm not familiar with HPT COS, does it have a boost VE table...?

( your FPR is manifold referenced, it doesn't really add fuel, it increases rail pressure with MAP to keep the injector flow rate constant (keeps the pressure difference across an injector constant), did you account for this in your IFR table...? )

RonSSNova

iTrader: (3)

Do you have a log file of a run showing the AFR?
Can you post the tune?

I'm running a similar setup.
I don't use the Boost Enrichment table. just as a safety valve. I keep it slightly leaner than PE because the BE is slow to respond.
So I set up the PE and the PE Throttle table to activate PE where I want it.

Takes some fiddling to set up.

It's also a bit tricky to set up the VE table in the area you are on the two step. Because off the two step, you don't make boost there.

I went from 1.8 60ft to high 1.4 with more room for improvement.

Lastly, getting this all dialed in assumes your VE is calibrated to where actual AF on your WB matched the commanded AF in your tune throughout the run.......

Ron

MillsMotorvation

meth comes on at about 7psi, I have 3spray nozzles. Looking at the scan the car is rich before I launch. So meth don't come on until after I move, im leaving at 3-4psi.

RonSSNova

iTrader: (3)

Sadly I can't open your log file due to an issue with this site. If you were to post on the HPT bulletin board, I could have a look.

I've asked the mods here to help me figure out why I can't open these files......

Ron

RonSSNova

iTrader: (3)

I was able to look at your file.
It looks like you are at 108 kpa on the brake, that's just 1.5 psi.
I don't see a wideband in your log file?
So it's hard to see if it's rich.
It does build boost really slowly.

Everything else looks good. Timing and commanded AFR.

Can you post the tune?

Ron

MillsMotorvation

Im not sure how to setup the wideband to read, I have a LC1innovate, and when I hook it up, the reading is way off, I cant get the wideband log up to change settings. Do I need to set my 2step higher? Will see if I can post tune. Im not tech savy, still learning. Wold like my scan file to read WB and IAT. Do you have a better scan configure file?

jts98z28

iTrader: (18)

for the wideband did you daisy chain the grounds? i have that a few times on hpt website that it can fix the readings

RonSSNova

iTrader: (3)

Sent you a PM

MillsMotorvation

I have a spot in the Tables for the EGR to read it, but when I hooked it up the scanner reading was way off from the gauge.

RonSSNova

iTrader: (3)

Sent you a new config. You said you have mpvi pro.
So I added the LC1 to enhanced IO position 1 for you
You shouldn't need to use the EGR port.

MillsMotorvation

Thanks, so to read this I need to use the little green plug on the cable? Email sent.

RonSSNova

iTrader: (3)

Correct, the green plug