C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Newbie tuning question

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Old Nov 27, 2008 | 09:48 PM
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Default Newbie tuning question

Im new to the whole computer controlled injected hot rod scene BUT now that I have my Vette I will NEVER go back!

I have an 89 with a ZZ based 350 with Edelbrock heads, HOT cam, long tubes, 30# injectors, and a TPIS miniram. Id like to make sure the chip is programed to work the best with this setup. Ive read all the stickies and understand about how the burners, erasers, etc work.

My question is if there are any mail order companies or shops that would burn a chip for me? I just dont want to invest too much into the software/hardware right now. Appreciate all the help I can get!
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Old Nov 28, 2008 | 04:52 AM
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http://www.pcmforless.com/index.php?...d=45&Itemid=40
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Old Nov 28, 2008 | 08:14 AM
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Originally Posted by jmoore79
I just dont want to invest too much into the software/hardware right now.
A throwaway laptop ,
$60 ALDL cable http://www.aldlcable.com/
and free software http://tunerpro.markmansur.com/downloadApp.htm

lets you at least monitor engine functions in real time.
Excellent intro to tuning by letting you see all the sensor outputs to ECM
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Old Dec 1, 2008 | 06:44 PM
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Originally Posted by jmoore79
... I'd like to make sure the chip is programed to work the best with this setup. Ive read all the stickies and understand about how the burners, erasers, etc work.

My question is if there are any mail order companies or shops that would burn a chip for me? I just dont want to invest too much into the software/hardware right now. Appreciate all the help I can get!
Sorry. I'm afraid there is no such animal. If you want a chip "to work best with this setup.", first question is What do you mean by that?
Part Throttle, Idle quality, WOT ONLY. Please define.

Second, every motor is different and it depends on how you drive it.
Nobody can just send you a chip. At best, they would want a datalog if they're reputable. If you're doing that, may as well do it yourself. You'll learn that it takes more than just one try to get a calibration correct.
And its not only a matter of Fuel and Spark. I've burned at least a thousand calibrations, for my 84 Xfire and now my ZR-1. There's always something else you'd like to change.
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Old Dec 9, 2008 | 11:21 PM
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There are several companies that sell flash e-proms that will fit in your computer. This will allow you to use a program like Tuner Pro to datalog and edit the program. You can then re-flash the chip with your laptop in just minutes - no chip burning! I have used this setup in my '85 with a 165 ECM (same computer as your 89) for two years. I also have a rotary dip switch that lets me store up to 8 programs, using the rotary **** to select which program I want to run. It took alot of studying, but it is a blast being able to make changes and trying them out right away to see if it helps! Have Fun!
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Old Jan 14, 2009 | 11:29 AM
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Originally Posted by 3 pedals
There are several companies that sell flash e-proms that will fit in your computer. This will allow you to use a program like Tuner Pro to datalog and edit the program. You can then re-flash the chip with your laptop in just minutes - no chip burning! I have used this setup in my '85 with a 165 ECM (same computer as your 89) for two years. I also have a rotary dip switch that lets me store up to 8 programs, using the rotary **** to select which program I want to run. It took alot of studying, but it is a blast being able to make changes and trying them out right away to see if it helps! Have Fun!
What brand of flash e-prom do you use?
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Old Jan 14, 2009 | 01:42 PM
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Originally Posted by cshuman
What brand of flash e-prom do you use?
I don't know about him but I'm using an ostrich.

-- Joe
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Old Jan 14, 2009 | 04:12 PM
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Originally Posted by anesthes
I don't know about him but I'm using an ostrich.

-- Joe
I have an APU-1, but I have a 91 which has the computer located under the hood. I've heard about a Promulator, which I think mounts in the place of the chip inside the computer. If that's the case I wonder if it can be flashed thru the ALDL connector?
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Old Jan 14, 2009 | 04:19 PM
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Originally Posted by cshuman
I have an APU-1, but I have a 91 which has the computer located under the hood. I've heard about a Promulator, which I think mounts in the place of the chip inside the computer. If that's the case I wonder if it can be flashed thru the ALDL connector?
You can look at the 2nd Gen Ostrich and add Bluetooth to it. Moates sells that as an option for underhood installs. I have a 1st Gen Ostrich
but don't have any huge issue with hooking cable up and downloading.
I would normally stop the vehicle if I wanted to make cal changes anyway so not a big deal to me.
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Old Mar 15, 2009 | 10:55 PM
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Originally Posted by cshuman
What brand of flash e-prom do you use?
Sorry for taking so long to respond - been a little busy. I use a PROMinator from http://www.speedtronics.net I mounted a printer port under the dash that the laptop hooks up to - I can edit the program and reflash the chip in just minutes!
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Old Mar 16, 2009 | 05:23 PM
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I had never heard of the PROMinator until this post. So does this mount in the ECM? What software do you use for tuning changes? Do you have any pics of your set up?

Im trying to learn as much as I can before I start!
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Old Mar 16, 2009 | 10:43 PM
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Installing the PROMinator is fairly easy - remove the ECM from the car, remove the cover over the MEMCAL and also the outer cover of the ECM. Unplug the MEMCAL and plug the PROMinator in it's place. Your original MEMCAL plugs into the PROMinator. Trial fit the outside cover and remove enough material to clear the cable that plugs into the PROMinator. Install the outer cover and the MEMCAL cover. Install the ECM back under the dash. Mount the other end of the cable in a place that you can easily hook up your laptop. You can download a program from Speedtronics to flash the chip - easy to use once you get your laptop and PROMinator talking to each other on the same channel (I had to change a setting in my laptop). I use Tuner Pro RT to datalog and edit the program. I think that Tuner Pro also has a way to flash the chip, I haven't tried to use it yet. I didn't take any pictures - the Speedtronics site has some pictures. Another source for information (if you haven't already found it) is http://www.thirdgen.org
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