Phil99vette

iTrader: (11)

Can anyone give me some help on how to tune a big cam without the O2s?
Phil

HumpinSS

iTrader: (1)

You are definately gonna need a WB. Set the open loop Air fuel table to 1.13 approx 13.0:1 and log as many data points as you can. where the fuel ratio differes from the commanded you move the ve table respectively. All of this data willhave to be grouped by MAP and RPM in order to go back to the ve table. I can do this in access if you are access literate and would like to know how. or you can give me a few days when the hptuners cable comes out and i can loan you my WB and cable so you can tune the car a lot easier. We are both in Waldorf

Phil99vette

iTrader: (11)

I already have a WB but it doesn't integrate into my loggin software. I can log all of the ECU sensors and export them into an access file but the wideband will be seperate. Getting those to to mesh may be the issue.
Phillip

Phil99vette

iTrader: (11)

BTW I just moved down to Port Tobacco, maybe we can meet up one night and see what we need to do to make this happen. Thanks in advance.
Phil

HumpinSS

iTrader: (1)

Does your wb log AUX (map) and rpm I had to splice the respective wires on my PCM to aquire that data. that is all you would need to go back to the ve table. With access you can sit down and average the different map and rpm points for use with the ve table and not worry about having to mesh the data together...

jimmyblue

iTrader: (11)

I picked up a couple of long O2 sensor pigtails from
my dealership mechanic buddy for the purpose of
putting the LM-1 output into one of the rear O2s.
I just keep thinking the HPTuners new cable is going
to commence shipping any day now so I haven't
bothered to solder it up to my analog output cable.
But junk O2s are around for the asking and that is
always a way you could go, for logging feedback.

HumpinSS

iTrader: (1)

I am hoping they ship anyday now. I would like to have all this data integrated in one nice little package

Phil99vette

iTrader: (11)

I have the innovate with the aux input. Right now I just have it hooked up to the RPM sensor. What else do I need to splice into? MAP sensor?
Phil

HumpinSS

iTrader: (1)

I just skinned the map wire back a little and wrapped the AUX wire around it so i can take map values.

Bill's 02 Z-28 SS

Hi Folks
I have the LM-1 WB O2 with the RPM converter - it works great and you can link the WB sensor reading by RPMs to your logging software (Excel File). I think it cost about $110 but it makes life easier. Now there is no guessing what RPM the reading is being taking at.
Bill

Phil99vette

iTrader: (11)

So we need:
Wideband
Rpm
MAP sensor
What about TPS?

How will the MAP sensor appear? Volts? HOw does that convert over?
Phil

HumpinSS

iTrader: (1)

We dont need TPS the ve table is scaled by rpm and map. yes the map will be seen in voltage. What I do is hook efilive up with the car in the on position and look at the MAP pid in kpa then i look at the map voltage on the WB unit and it divide it to get a conversion number.

102/4.75=21.473684210526315789473684210526 for the conversion factor...

Once HPTuners gets their cable shipping. We wont need to do all this because the WB stream will be plotted realtime in ve table format so it will literally take minutes to dial in an Open loop tune

Phil99vette

iTrader: (11)

The 102 is the MAP PID and the voltage is 4.75 so the conversion on any voltage is the 21.47368. Which wire do you slice on the Map sensor?
Phil

HumpinSS

iTrader: (1)

I'll check mine out in the morning