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View Full Version : how difficult is this tuning thing, new here



Kurtomac
March 23rd, 2008, 09:13 AM
:rockon: so how difficult is tuning starting on a mostly stock car...02 Z06 with LG pro LT's 3in offroad X pipe stock catback and vararam intake....just want to play with the timing and afr to get some more hp and turn fans on earlier and delete rear 02s cuz i dont have cats....will have LC 1 wideband incar as well....tuning newbie here....catch on very fast though...will you guys check out the scans when i get this stuff and make sure im not going to blow the car up and guide me along
New member here my name is Kurt
Im from goldsboro NC at Seymour Johnson AFB Air Traffic controller here...looking forward to getting to know you guys....thought about hptuners but those guys are dickheads over at their forums...so here i am:notacrook:

Kurtomac
March 23rd, 2008, 09:14 AM
anybody got pics of the wideband mounted in a c5 vette?

Black02SS
March 23rd, 2008, 02:14 PM
Beer has some pics of his under his engine bay. I'll look and see if I can't find them for you. Do some scans, post up some logs, we'll guide you in the right direction.
:)

Welcome to the forum.

Kurtomac
March 24th, 2008, 11:04 PM
Taking the plunge and gettin V2 and LC1 wideband

Beer99C5
March 24th, 2008, 11:31 PM
If your willing to put in the time, and ask when you need help, its fairly easy.

http://www.retrorelics.net/jim/Boards/Corvette/Dec07EFILiveV2.jpg

Above, LC-1 input and Nitrous Bottle Pressure input to V2, gonna be adding Relay Status Inputs for each stage of Nitrous.

http://www.retrorelics.net/jim/Boards/Corvette/TrickGa1.jpg

First Location...Did not like so much.
http://www.retrorelics.net/jim/Boards/Corvette/LC1a.JPG

Second Location...
better but still an eyesore...
http://www.retrorelics.net/jim/Boards/Corvette/LC1_Final_A.JPG

Its final home once I added headers and had the torque tube cover off.
http://www.retrorelics.net/jim/Boards/Corvette/XPipe.JPG

You can barely make it out upper right.

If your looking not to have a pillar pod, I can make ya one of these for a hidden gauge
http://www.retrorelics.net/jim/Boards/Panels/C5_ZO6/singlegauge.jpg

Jim

joecar
March 25th, 2008, 04:52 AM
Kurt, welcome to the forum. :cheers:

There's a learning curve, but you should be able to master it no problem, and as Beer said don't be afraid to ask questions. :cheers:

Our forum members are knowledgeable and are always willing to help with any questions. :cheers:

You may want read the AutoVE tutorial as this shows the relationships between some tables and how the wideband is used for tuning:
http://store.efilive.com/download.aspx#downloads7

Cheers,
Joe
:cheers:

Kurtomac
March 25th, 2008, 08:52 AM
ok I'll have some newbie questions first....what is done on the handheld scanner and what is done on the computer....is the usb coming out of the scanner going to a laptop....where does the purple wire go and the black wire? the LC1 has on the right side in the above pic....i assume thats the input from the sensor then on the other side theres 1 thick wire and 2 small wires....what do they go to? difficult install?
thanks beer
Kurt

Kurtomac
March 25th, 2008, 08:53 AM
oh and do i need a wideband gage or can it just be incorporated into my log....how much more for a gage?

Kurtomac
March 25th, 2008, 12:31 PM
ok on with the dumb questions....will i need to purchase anything else to get the wideband to plug into the scanner or computer or whereever it goes....sorry for the NEWB questions but I guess when I get it I'll have a better idea

Beer99C5
March 25th, 2008, 04:55 PM
The Black wire is the Wideband input (0-5V, on the LC-1 it is connected to the yellow or brown wire as needed, in my case the yellow goes to my Gauge, the brown goes to the V2). The purple wire is my Nitrous Bottle Pressure input.

The scanner is the interface to the laptop.

TAQuickness
March 26th, 2008, 08:38 AM
Welcome to the forum Kurt.

As far as learning to tune, you're well on your way. Ask a billion questions, even if they've been asked before. Read everything you can! Then experiment in baby steps. And remember, if you stare at it long enough, it will start to make sense.

You don't need a gauge for the WB. Just purchase the sensor and controller and connect directly to the V2. The LC-1 tutorial is very helpful - even if you're using an LM-1.

Kurtomac
March 26th, 2008, 08:45 AM
thanks purchased the V2 last night and the LC1 from GreenlightMS:notacrook:

Welcome to the forum Kurt.

As far as learning to tune, you're well on your way. Ask a billion questions, even if they've been asked before. Read everything you can! Then experiment in baby steps. And remember, if you stare at it long enough, it will start to make sense.

You don't need a gauge for the WB. Just purchase the sensor and controller and connect directly to the V2. The LC-1 tutorial is very helpful - even if you're using an LM-1.

dfe1
March 26th, 2008, 08:55 AM
I don't think tuning is all that difficult because I've hear that even politicians can learn to do it. Of course, after they do, they lie about it.

Those considerations aside, there's an article about EFILive in the February, 2008 issue of Corvette Fever magazine you may find helpful.

Kurtomac
March 30th, 2008, 12:36 PM
ok can anyone explain to me....VE? what the hell is it...I read the tutorial on Auto VE what exactly does that do? correct the A/F? I will have an LC1 wideband. Where and how is timing adjusted? any tutorials on that i can read before i receive my efi live v2 on tuesday...my header install should be done tomorrow...so can you guys explain the VE tables, timing tables(high octane spark or what?) and how all this relates and exactly what VE table is...thanks and sorry again for the new questions

Kurtomac
March 30th, 2008, 12:39 PM
tuesday when i get it...I'd like to register make an initial log without the wideband installed and delete the rear 02's....anyone want to give me what i need to do to delete rear 02s or what it is i need to do to not run cats and not have any pcm troubles
thanks again

dfe1
March 30th, 2008, 02:15 PM
Sounds to me like you're in for some real tough times unless you take a step back, take a deep breath and start reading. VE is a pretty basic part of tuning, and if you don't even know what it is, you shouldn't be messing with it. This is one of those rare instances when I'm not being a smart-ass, but the world is full of "expert" tuners who continually screw-up customers' vehicles because they never learned the basics. You need to get a better grasp on concepts and basics before you make any significant changes to a tun file.

Now that my soapbox has collapsed, VE is an acronym for Volumetric Efficiency. In basic terms, when stated as a percentage, it's a measure of the amount of air an engine is using, expressed as a percentage of its displacement. As an example, a 350 cubic inch engine, operating at 100% VE will consume 350 cubic inches of air. In a sense, that's irrelevant because VE tables are typically used to control fuel flow; the PCM computes fuel flow based on air flow as specified by VE. Everything else being equal, a higher VE percentage indicates higher air flow which calls for higher fuel flow. Timing is adjusted by altering entries in the spark tables, but there's a lot more to it than that because there are a number of other tables that affect timing based on things like inlet air temp and coolant temp.

joecar
March 30th, 2008, 07:32 PM
Yes, you must read [alot and widely]... this is your new life (reading). :gossip:

FreddyG
March 31st, 2008, 05:53 AM
Welcome to the forum Kurt.

As far as learning to tune, you're well on your way. Ask a billion questions, even if they've been asked before. Read everything you can! Then experiment in baby steps. And remember, if you stare at it long enough, it will start to make sense.



Welcome to the forum Kurt! :welcome:

I agree with TAQuickness! I'm still learning the basics too, but with the help of this forum, am getting the hang of it and so will you!

The best advice, in my opinion, is to read and sponge up all of the info that you can find about tuning. The bad part about being new to this and just learning this, is to discern which info is good and which is not. Always think things out and use your common sense!

The Guys on this forum are straight shooters and Very knowledgeable and helpful (trust me, I've asked and still am asking my share of questions). They won't make you feel like I'm a moron for not knowing the answers. They remember where they came from and when they started. That's what makes this the Best tuning forum on the net. :cheers:

I bought all of the tuning books that I could find and have read most of them as time has allowed. They explain the basics of how things work. For me, once I understand how something works, it makes it easier for me to work on/with. I'm not afraid to mess with the software, but I respect it because it can do some SERIOUS damage if use with reckless abandon, so just take your time and before you kow it, you'll be helping the people out that are where you're at now (I can only hope to get to that point someday, but I will and so will you)!

Hang in there and Good Luck! :cheers:

By the way, Sorry for the novel! :grin:

Kurtomac
April 2nd, 2008, 06:02 AM
what are good fan settings for a 02 Z06 stock stat just want the fans on earlier cuz i was over 200 at the line last time at the track btw how the heck do you get this in degrees F not C? also...No cats here turned all four sensor 2 bank1 and all for sensor 2 bank2 to not reported so i wont get the codes p0140 and p0160 anymore....I have my AIR system hooked up should i disable it since i have no cats to light off? If so how is this done...I disabled my cat converter protection

Kurtomac
April 4th, 2008, 05:08 PM
is there a list of acronyms...holy shit a ton of em..whats PID?
Was checking out my high octane spart table mines been modified....i assume the cars had a tune previously...compared to a stock 02 Z06's....anyways high octane spark table....grams/cylinder is that grams of air per cylinder at a RPM in 400 rpm increments....is something i can/will log and determine how how much air/cyl im getting and how many degrees of timing it will take without getting knock?
was looking at a modified tune for a HC z06...mines only headers no cats intake car...but it seems like 2000-3600 on the modified tune goes from 23,24,26,26,27,26 then drops to 23 for 800 rpms then back up to 26 at 4800 and remains 26 up to max...why the 800 rpm drop...wouldnt it be better to ramp it up to 26?....mine goes as follows from 2000-3600 22,23,25,25,26,25 down to 22 for 1200rpms then at 5200 on up goes to 26 degrees of timing....Stock is as follows from 2000-3600 22,23,25,25,26,25 and from 4000 on up its 22 degrees....it seems mines not been touched until 5200 is all this normal?...Sorry again for all the NEWB questions
It appears my VE table is stock....would the previous tuner have messed with maf settings to try and lean out the stock tune...I'll check on that shortly and let you guys know
question when you floor it does it go into VE mode or somthing....Im real green on this stuff sorry and thanks for the help

how is afr adjusted by "pro tuners"