So I'm thinking about it and doing some reading and how it will pertain to me.

First I either need to wait for the black box function or get a laptop.
how much of a laptop? refurbed dells on ebay for 150 all day

Then I have a 99 so the best thing is for me to reflash to a 2002.
Will efilive give me that file? Couldnt find a tutorial on it.

Second question is I already have a custom tune: adding a bigger cam and better heads and ported 90 instead of unported 90 an 85mm z06 MAF to the equation so thats where the application will be.

A. How will I rebuild the MAF
B. from the tutorials it looks like I can flash all my current perameters and settings and what not over to the 2002 OS ?

So then the real issue is the MAF rebuild as my current tune is for a 234 cam and I'm going to a 238 so it will really just be some tweaking to the tune. My car should run good and not be lean or rich.

AM I wrong with any of that?

 

doesn't take much of a laptop to run EFILive. Depending on your future plans, you can purchase a V1 cable (V1 does BB logging). BB logging for V2 is still just around the corner. V2 will go a step further and offer stand alone flashing and a few other cool features as well.

Yes. EFILive does not charge extra for their custom operating systems. You can find a great collection of EFILive tunes @ www.holdencrazy.com

I'm assuming you meant the MAF table. The process is very similar to Auto VE. You'll start by getting your VE tables dialed in, the apply the same concepts from tuning the VE to the MAF table.
Yes, you can copy over your current calibration to a 2002 OS and flash that into your PCM. A good base tune for you will be the 1999to2002 OS located at www.holdencrazy.com.

Sound like you know what you want to do, you just need the tools now

 

Flashing to OS 12212156 will allow you to then flash to COS5 which has some nice features
(can slide between the MAP vs RPM VE table and the TP vs RPM VE table...
helpful for tuning cams giving poor idle vacuum).

(It's free to flash a PCM to any OS or COS).

 

So ... Will I be able to use this table found on ls1howto.. or No?


Note: These are only needed if you purchased a non recalibrated MAF


Freq (Hz) 1500 1625 1750 1875 2000 2125 2250 2375 2500 2625 2750 2875 3000 3125 3250 3375 3500
Screened 1.48 1.8 2.13 2.49 2.89 3.33 3.8 4.34 4.91 5.54 6.22 6.95 7.73 8.56 9.45 10.38 11.38
Descreened 1.42 1.76 2.1 2.48 2.86 3.26 3.7 4.18 4.71 5.31 5.97 6.68 7.43 8.23 9.08 9.97 10.91
(continued) Freq (Hz) 3625 3750 3875 4000 4125 4250 4375 4500 4625 4750 4875 5000 5125 5250 5375 5500 5625
Screened 12.45 13.6 14.85 16.21 17.7 19.32 21.02 22.77 24.54 26.43 28.41 30.49 32.66 34.95 37.36 39.9 42.62
Descreened 11.93 13.05 14.27 15.59 16.98 18.47 20.05 21.72 23.48 25.34 27.28 29.34 31.48 33.74 36.11 38.62 41.3
(continued) Freq (Hz) 5750 5875 6000 6125 6250 6375 6500 6625 6750 6875 7000 7125 7250 7375 7500 7625 7750
Screened 45.48 48.5 51.66 54.98 58.44 62.05 65.82 69.73 73.8 78.03 82.41 86.94 91.63 96.49 101.51 106.71 112.09
Descreened 44.17 47.2 50.4 53.77 57.3 61.01 64.88 68.91 73.12 77.47 81.97 86.63 91.45 96.43 101.59 106.9 112.36
(continued) Freq (Hz) 7875 8000 8125 8250 8375 8500 8625 8750 8875 9000 9125 9250 9375 9500 9625 9750 9875
Screened 117.63 123.35 129.24 135.3 141.53 147.87 154.41 161.15 168.08 175.22 182.58 190.23 198.21 206.34 214.8 223.52 232.52
Descreened 118.01 123.83 129.84 136.05 142.48 149.13 155.98 163.06 170.38 177.92 185.7 193.73 201.99 210.52 219.3 228.34 237.64
(continued) Freq (Hz) 10000 10125 10250 10375 10500 10625 10750 10875 11000 11125 11250 11375 11500 11625 11750 11875 12000
Screened 241.83 251.34 261.13 271.19 281.53 292.15 303.05 314.25 325.73 337.51 349.59 361.96 374.64 387.63 400.92 414.53 428.46
Descreened 247.23 257.06 267.16 277.56 288.25 299.25 310.55 322.2 334.16 346.49 359.16 372.22 385.66 399.51 413.77 428.45 443.6

 

What TA is saying is that you will be able to calibrate the MAF table using a wideband O2 sensor...

Using a wideband, first you dial in the VE table (and this gives you starting values to initially populate the MAF table), then you basically do the same thing to dial in the MAF table.


BTW: nice car.

 

Do I have to do it that way or can I use the table I found or will my values be different?

Joecar any experience with the NGK wideband?

Sorry for all the quesitons and some might be dumb but I just need to make sure what I'm getting into. I've put a lot of money into my new heads and cam combo and want it to run the best it can. I know it will take while for me to get it perfectly dialed in, trial and error and learn. But everytime I do something or want to change something I have to pay a tuner...... we're talking like $1700 in the past 7-8 months for 3 different sessions due to my changing things.

I've looked at the files and no one has posted anything like what I've got so I'll be one my own as far as that goes.

Just to make sure of a few things though.. I change stuff but I always have a backup of the original I can always revert to.

All manipulations are done on your pc and then transferred to the car by way of the v2 handheld unit if using v2 or directly from your pc if using v1. ?

v2 is better than v1? how? just because of the handheld or is it better altogether even without the handheld?


Auto VE, trying to understand that... is that a new function of v2? I saw the tutorial and went through it but of course some of it was totally greek to me at this point, but it seems like it does some work for you that used to be time consuming ?

Still looking at $1100 min to get started though and the dynotune would cost me about $600 with the maf table rebuild.

 

"auto ve" is just a set of steps you follow to dial in your ve based on your air to fuel ratio. This is a nice little tutorial of what Auto VE is all about: http://download2.efilive.com/Tutoria...h%20AutoVE.htm Is that the one you saw?

I took it from the download page here: http://www.efilive.com/download.aspx#downloads6

 

yea that was the one, couldnt follow along with it though with it though. I downloaded 7.4 and tried but I didnt have the same files as the demo. I know more about the lc1 though and wideband vs narrow band so the ngk thing I posted wont work I guess

 

You are really overthinking this. HPtuners and EFIlive software are both so easy to use a crackhead could do it. Smart people realize that there are a lot of things they don't know. Just don't be too smart, because it sounds like you know plenty enough to tune your own car. You have already found a forum to help with any questions you have, so take the plunge and quit paying for what you can probably do better yourself.

 

99SS,

Answering some of your questions:

Did you see the Auto VE tutorial in PDF form: http://store.efilive.com/download.aspx#downloads7

No I haven't used the NGK wideband, but the EFILive software will be able to map the voltage from it to an AFR value (the wideband user manual will tell you the AFR-to-V mapping);

Yes on all those; V2 can be used like V1 directly with a PC/laptop, and soon it will have remote standalone capability where you take it from your PC to you car and back again (using the PC to read/analyze logs and to edit tunes).

V2's standalone BB logging/flashing modes are undergoing beta testing, and will be available soon.

V1 is the older hardware (it already does BB logging); it is more compact than V2;

V2 is the newer hardware (it will do BB logging and flashing soon), it has an LCD, takes an SD memory card for large amounts of logging and many tune files, and can talk the newer CAN protocol (log/flash newer GM vehicles);
Paul is working on having it read the serial data stream that some widebands output (e.g. the LC-1) to get the AFR in digital form rather than analog form (gives a more accurate AFR since some people see analog voltage offsets with various widebands).

DIY tuning will definitely save you money... but as you know there is a learning curve, but you will be able to change any table in your tune at any time without having to visit a tuning shop... after you use it for a while, you will wonder "how the heck did I ever get along without this"...

Auto VE can be done with either V1 or V2 or HPTuners (i.e. can be done with any tool that has a map/histogram capability)...

Auto VE automates a job that was time consuming... after you get your wideband connected and reading correctly, you log while driving (do some WOT and some PT)... then the scantool software displays a filtered correction map based on comparing wideband actual AFR against commanded AFR... the tunetool then multiplies this into the VE table... the hardcore among us DIYers do Auto VE every week or even every day, just for fun...

You can use those MAF tables if you want... or you can get Auto VE to produce a MAF table for you based on your newly dialed in VE table... either way, you can then apply wideband correction to the MAF table.

Think of tuning software as a mod that infinitely conforms to all your other mods; you make 700HP, you wouldn't want to be caught dead or naked without EFILive tuning software...

Cheers
Joe


Edit: added more info above...

 

Yes, they're both easy to use, and the forums provide help and how-to information.

 

KPa question now..lol

I'm trying to digest what the mnain ve table is telling me. I have rpms, ok know what that it is but the KPa and % I cant understand. I underatstand the data units % is measurement but the line of Kpa boxes from 55 to 105 for each rpm cycle eludes me..lol what is that ?

I undertand the populated number is the measurement or air pressure ? in the cylinder?

I know I'm missing something but why wouldnt you want as close to 100% as possible all the way through the rpms in all boxes from 55 to 105, if thats cylinder pressure or amount of air the cylinder can fit?

Honestly I'm doing all the reading I can and not just sitting back and asking stupid question on purpose..lol


Or should I be posting these questions on EFI forum? Although the above question is generic isnt it?

My guess is the cam has a ,ot to do with the values being what they are but what is the optimum chart/map that your looking for? What should the values be at a given rpm and kpa?

or is that correlated to the Throttle position as well and if the throttle isnt wide open then you can possibley fill the chambers all the way, correct?

I need to do more reading on ve stuff

 

kpa is Kilopascals, basically one kilogram pressing on one square meter (ie) Its measures pressure its the metric way. It easy, 0= no pressure, 100 is pretty much atmospheric (well 101.3 I think) So under WOT you will see near 100kpa hopefully, if not then you may have an intake restriction.

The % is a calculated value, its not the native format. Its basically a measurement of volumetric efficiency, if you can get an engine with 100% everywhere you will make millions from it.

Throttle closed at idle you are probably pretty low efficiency, WOT at peak torque you are probably getting nearer to 100%. Its basically a measurement of how much air is going into the engine at that RPM and Pressure (load) and from this the ECM figures out how much fuel to add based on the commanded AFR value.

 

thank you !!