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Tuning "To Do" List Posted By: LT1JAG On: 01-04-2008 @ 15:07:49 Reply | Edit Ok, thought I would start out the project with a few things. Please add to this list, I do not claim to know everything about tuning PCM's, I'm just a tinkerer and I can share the few things I know and hopefully others can add to it. Assumtions: You have a laptop. You have a program to Datalog with. You have a Excel type Spreadsheet program. You have a program to Tune with. You have the cables to hook up to your PCM. E-mail or phone number of a good buddy to call when you screw up! Understand that this is not a single Saturday project. It's an ongoing thing, hopefully you will get to the point of "This is good enough"! You have a good running engine! A new tune up with all the parts. No vacume leaks. 13.2 plus volts while engine is running. No exhaust leaks. No error codes AT ALL. A basic understanding how an EFI engine works. And a MAJOR item is that you take ALL responcibility in knowing that you can do damage to your engine if you do not know what your doing! Datalogging: A must! This is a safe thing to do, you really can't screw up doing this. Nothing harder than plugging in a scanner. Datalog the car, not for four or five minutes either. A good 20 to 30 minute drive with WOT, Cruise, idle. And not just one, multiple runs in different temps and conditions. Also, as a baseline, get a good idea of your gas mileage before you start. A few runs down the local strip wouldn't hurt either. Keep your slips! Tuning: List of things to change: ECM Switch table ECM Constant table List of things to tune. Volumetric Efficiency Spark Tables MAF Sensor Calibration Tables %Change to Fuel/Air Ratio (you will need a Wideband for this) Ok, It's a START, now it's your turn to add to this list! I suggest copy mine and re-post with your additions. Hopefully as time goes by we will have a nice list put together. -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power. 
 Posted By: fergymoto 
On:
11-03-2007 @ 21:40:05 Reply | Top | Edit
A very good start 
I would like to get into learning how to tune. I have the software and the cable, but do not have a laptop yet. I have just been using my desktop in the garage. I have not done any actual tuning though, just changes in the ECM switch and constant tables. -- 
1997 Trans Am WS6 --- 7.58 @ 90MPH 1.65 60' in the 1/8th My Vid: http://www.youtube.com/watch?v=plrwEHkL134 Posted By: 94junker On: 11-04-2007 @ 00:11:38 Reply | Top | Edit 1 an open road with no cops 2 a full tank of gas 3 somebody to hold the laptop while u datalog i have a laptop, datamaster, tunercat yet i dont have the definition file to tune and i think i have another vacuum leak Posted By: LT1JAG On: 11-04-2007 @ 08:14:09 Reply | Top | Edit Ok, thought I would start out the project with a few things. Please add to this list, I do not claim to know everything about tuning PCM's, I'm just a tinkerer and I can share the few things I know and hopefully others can add to it. Assumtions: You have a laptop. You have a program to Datalog with. You have a Excel type Spreadsheet program. You have a program to Tune with. You have the cables to hook up to your PCM. E-mail or phone number of a good buddy to call when you screw up! Understand that this is not a single Saturday project. It's an ongoing thing, hopefully you will get to the point of "This is good enough"! You have a good running engine! A new tune up with all the parts. No vacume leaks. 13.2 plus volts while engine is running. No exhaust leaks. No error codes AT ALL. An open road with no Cops A full tank of gas Someone to hold laptop while you datalog (Important, BTDT) You need to drive not look at Data stream. A basic understanding how an EFI engine works. And a MAJOR item is that you take ALL responcibility in knowing that you can do damage to your engine if you do not know what your doing! Datalogging: A must! This is a safe thing to do, you really can't screw up doing this. Nothing harder than plugging in a scanner. Datalog the car, not for four or five minutes either. A good 20 to 30 minute drive with WOT, Cruise, idle. And not just one, multiple runs in different temps and conditions. Also, as a baseline, get a good idea of your gas mileage before you start. A few runs down the local strip wouldn't hurt either. Keep your slips! Tuning: List of things to change: ECM Switch table ECM Constant table List of things to tune. Volumetric Efficiency Spark Tables MAF Sensor Calibration Tables %Change to Fuel/Air Ratio (you will need a Wideband for this) Ok, It's a START, now it's your turn to add to this list! I suggest copy mine and re-post with your additions. Hopefully as time goes by we will have a nice list put together. -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
Posted By: useful_idi0t On: 11-06-2007 @ 22:27:13 Reply | Top | Edit heres some websites with software and hardware Tunercat http://www.tunercat.com/ software/hardware for OBDI and OBDII LT1 Edit http://carputing.tripod.com/9697lt1edit.htm software for OBDI Datamaster http://www.ttspowersystems.com/DataMaster.html software Freescan http://www.andywhittaker.com/ECU/FreeScan/tabid/70/Default.aspx software AKM Cables http://www.akmcables.com/ hardware Craig Moates http://www.moates.net/ software/hardware Edit: Sticky vote for this thread --  [ Edited on 11/06/2007 @ 22:29:46 ] Posted By: LT1JAG On: 11-15-2007 @ 11:08:53 Reply | Top | Edit Just bumping this one to see if we can get some more input. -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
Posted By: 94junker On: 11-15-2007 @ 11:52:47 Reply | Top | Edit u need to add in that ppl need to pay for the definition file separetely lots of ppl dont know that u cant tune sh*t without it Posted By: LT1JAG On: 11-15-2007 @ 12:53:52 Reply | Top | Edit Ok, thought I would start out the project with a few things. Please add to this list, I do not claim to know everything about tuning PCM's, I'm just a tinkerer and I can share the few things I know and hopefully others can add to it. Assumtions: You have a laptop. You have a program to Datalog with. You have a Excel type Spreadsheet program. You have a program to Tune with. You have purchased a Bin File for your Car You have the cables to hook up to your PCM. E-mail or phone number of a good buddy to call when you screw up! Understand that this is not a single Saturday project. It's an ongoing thing, hopefully you will get to the point of "This is good enough"! You have a good running engine! A new tune up with all the parts. No vacume leaks. 13.2 plus volts while engine is running. No exhaust leaks. No error codes AT ALL. An open road with no Cops A full tank of gas Someone to hold laptop while you datalog (Important, BTDT) You need to drive not look at Data stream. A basic understanding how an EFI engine works. And a MAJOR item is that you take ALL responcibility in knowing that you can do damage to your engine if you do not know what your doing! Datalogging: A must! This is a safe thing to do, you really can't screw up doing this. Nothing harder than plugging in a scanner. Datalog the car, not for four or five minutes either. A good 20 to 30 minute drive with WOT, Cruise, idle. And not just one, multiple runs in different temps and conditions. Also, as a baseline, get a good idea of your gas mileage before you start. A few runs down the local strip wouldn't hurt either. Keep your slips! Tuning: List of things to change: ECM Switch table ECM Constant table List of things to tune. Volumetric Efficiency Spark Tables MAF Sensor Calibration Tables %Change to Fuel/Air Ratio (you will need a Wideband for this) LINKS Tunercat http://www.tunercat.com/ software/hardware for OBDI and OBDII LT1 Edit http://carputing.tripod.com/9697lt1edit.htm software for OBDI Datamaster http://www.ttspowersystems.com/DataMaster.html software Freescan http://www.andywhittaker.com/ECU/FreeScan/tabid/70/Default.aspx software AKM Cables http://www.akmcables.com/ hardware Craig Moates http://www.moates.net/ software/hardware Ok, It's a START, now it's your turn to add to this list! I suggest copy mine and re-post with your additions. Hopefully as time goes by we will have a nice list put together -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
Posted By: LT1JAG On: 11-30-2007 @ 10:32:23 Reply | Top | Edit bump -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
Posted By: 95ttoplt1
On:
12-01-2007 @ 06:23:47 Reply | Top | Edit
Sorry guys I might get a chance to add to this in a couple days. But in the mean time//waves the magic wand// its stuck! --  Posted By: jpack On: 12-01-2007 @ 12:26:40 Reply | Top | Edit Here is some good info. http://www.lt1pcmtuning.com/tips.php -- President of N.I.F.B.A. Live in the Chicagoland area, want to be in a Fbody car club? Click here to visit the NIFBA Posted By: vesuvius66 On: 12-07-2007 @ 00:42:23 Reply | Top | Edit My Caps Lock Button Is Broken -- 97 T/A Moroso Cold air intake, Mufflers? We don't need no stinkin mufflers! 91 Camaro RS 5.0L Cat Back, K&N (in process of trying to buy back) Posted By: Formulax93 On: 02-11-2008 @ 09:57:25 Reply | Top | Edit LT1JAG, are you in Florida? . -- 93 Formula - engine stuff, exhaust stuff, suspension stuff, appearance stuff, ignition stuff, supercharger stuff, transmission stuff, etc.................... Posted By: LT1JAG On: 02-11-2008 @ 10:22:19 Reply | Top | Edit No, Upstate SC, Greenville -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
Posted By: Formulax93 On: 02-12-2008 @ 13:12:29 Reply | Top | Edit OK I haven't heard of too many LT1 Jags, and a guy I know sold one within the last year or two so was just wondering. -- 93 Formula - engine stuff, exhaust stuff, suspension stuff, appearance stuff, ignition stuff, supercharger stuff, transmission stuff, etc.................... Posted By: lt4weeda On: 04-03-2008 @ 20:43:12 Reply | Top | Edit I'm new to the lt engine just got my first one a month ago and i know i got a real project in hand. I was just wondering what kind of tuning i need to do if i intall a new fuel pressure regulator? and if anyone has any advice on a good company to go with for programmers or if anyone sells a kit with a program and cables and whatnot. Posted By: LT1JAG On: 05-10-2008 @ 10:39:08 Reply | Top | Edit New Pressure reg won't make much of a diff if it's OEM Adjustable need to be set at Factory spec to begin with. Programer, cables , datalogger. I use Tuner Cat to program with, Datamaster to datalog and I got my cables from Craig Moates, Moates.net Not saying this is the best, just what I use. There are others, check them out before you buy. -- 1987 Jaguar XJ6, 1995 LT1 conversion, TH700 Tranny, MSD 6AL, Blaster Coil, Personally tuned with TunerCat and a bunch of help from folks on this list. English Steel with Bad Ass American Horse Power.
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