Tuning help for 1993 LT1!
![[JFS]'s Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%239a457d' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>[</text></svg>)
Registered User
Joined: Apr 2001
Posts: 131
From: Columbus, Ohio
My quick steps to tuning '93 LT1 cars
1) Download the evaluation of Tunercat , take a look at it. If you really want to do this, spend the $$$ to register and get a $DA3 definitions file.
2) You'll need a eprom programmer. Most people use PocketProgrammer2. Don't forget to order some blank 27C256 (I believe) chips. Afterall, you'll need something to program.
3) I had a hypertech 'piggy back' carrier from a long time ago. I use that for putting in new eproms with a ZIF socket. Alternatly you can buy entirely new mcals and swap chips in those. there are a couple of options.
4) You can try downloading from the web a BIN file that matches your mods. I tried this, it sucks ... IMO, get the car setup ... as in all sensors, O2s, VSS, coolant, exhaust, etc ... and above all make sure all sensors and parts are mechanically sound. Start tuning part throttle with a stock BIN.
5) Download Datamaster and use an AKM cable
6) Start datalogging with Datamaster. Obviously, let the car move to closed loop and look for anything out of the ordinary. Take you log and bin file and put them through VE Master. This will make changes to your VE tables and really help part throttle on speed density cars. On a MAF cars, it is disputed how changes to the VE tables work ... Needless to say, in my experience, you'll have to edit the tables and VE master does a good job of getting you 90% there.
7) Repeat setep 6 about 10 times. Log data ... use VE Master ... burn new prom. You'll want to log about 10,000 to 17,000 frames of data each time and drive upder varying throttle conditions.
8) You'll start to see patterns form in the VE tables, start hand editing the areas that VE Master might not correct so well.
9) You'll want to use a dedicated wide band sensor and dyno to tune the top end stuff.
In the past weeks I've posted some pics/data here
http://jon.shoberg.net/mt-search.cgi...arch=ve+master
1) Download the evaluation of Tunercat , take a look at it. If you really want to do this, spend the $$$ to register and get a $DA3 definitions file.
2) You'll need a eprom programmer. Most people use PocketProgrammer2. Don't forget to order some blank 27C256 (I believe) chips. Afterall, you'll need something to program.
3) I had a hypertech 'piggy back' carrier from a long time ago. I use that for putting in new eproms with a ZIF socket. Alternatly you can buy entirely new mcals and swap chips in those. there are a couple of options.
4) You can try downloading from the web a BIN file that matches your mods. I tried this, it sucks ... IMO, get the car setup ... as in all sensors, O2s, VSS, coolant, exhaust, etc ... and above all make sure all sensors and parts are mechanically sound. Start tuning part throttle with a stock BIN.
5) Download Datamaster and use an AKM cable
6) Start datalogging with Datamaster. Obviously, let the car move to closed loop and look for anything out of the ordinary. Take you log and bin file and put them through VE Master. This will make changes to your VE tables and really help part throttle on speed density cars. On a MAF cars, it is disputed how changes to the VE tables work ... Needless to say, in my experience, you'll have to edit the tables and VE master does a good job of getting you 90% there.
7) Repeat setep 6 about 10 times. Log data ... use VE Master ... burn new prom. You'll want to log about 10,000 to 17,000 frames of data each time and drive upder varying throttle conditions.
8) You'll start to see patterns form in the VE tables, start hand editing the areas that VE Master might not correct so well.
9) You'll want to use a dedicated wide band sensor and dyno to tune the top end stuff.
In the past weeks I've posted some pics/data here
http://jon.shoberg.net/mt-search.cgi...arch=ve+master
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
6
Oct 31, 2016 11:09 AM
jb4xx
General 1967-2002 F-Body Tech
9
Feb 2, 2015 10:00 PM
Sarahrope64
LT1 Based Engine Tech
0
Nov 27, 2014 11:17 AM