Tuning a 93
Thread Starter
Joined: Aug 2008
Posts: 1,306
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From: Eau Claire, WI
Tuning a 93 Well, I have been getting back to one of my old car projects again. The motor will be getting pulled out in the spring. I plan for a heads/cam/pistons and rods with a stock crank. Anyways, I know nobody tunes these cars anymore, even fewer do the 93's. What do I need to monitor the engine, and build my own chips? Is any of the stuff out there anymore? I don't want to swap everything for a 24x system as that would cost me a solid $1000. I'm no stranger to spending cash, but when you start talking about building a new motor and throwing that on top of it, I could easily swap to an ls engine for the same kind of money, and be further ahead. If that's the case I will scrap the LT1 even though I don't want to.
Thread Starter
Joined: Aug 2008
Posts: 1,306
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From: Eau Claire, WI
Interesting site, I forgot to mention...years ago, I installed an adapter from madz28 that uses removable chips for the tune. I guess I'm going to read through that site some more to see what he has that I can use to make my own.
I use TTS Datamaster for logging, TunerCat OBD1 for tuning and have an Intronics PP3USB eprom programmer. It is available through Transtronics website. You will also likely need a UV eraser to keep reusing the eproms.
And 27c256k chips have gotten harder to find over time so you definitely want to get 5-6 and reuse them as you modify your tune.
And 27c256k chips have gotten harder to find over time so you definitely want to get 5-6 and reuse them as you modify your tune.
Thread Starter
Joined: Aug 2008
Posts: 1,306
Likes: 1
From: Eau Claire, WI
Well after reading through quickly, that site suggests tunercat. I went there and found this, I think it's the one I need for my 93, but I'm not sure.
it looks like it has the chip adapter I installed from madz28 all those years ago. Is there anything else I should buy to tune the 93? Maybe a wideband/air fuel ratio monitoring system? Which one?
it looks like it has the chip adapter I installed from madz28 all those years ago. Is there anything else I should buy to tune the 93? Maybe a wideband/air fuel ratio monitoring system? Which one?
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You will be ahead going with a LS considering aftermarket support and tuning ability. But you need a different K member and some other assorted things to get the LS into a LT1 car...and IMO I would have just bought a LS1 car by the time you are done unless you have a LS donor car.
I will eventually switch to 24x since tuning ability is dwindling and I will just bake that cost into the next motor build. Hell I may switch to 24x with the current motor then swap everything to new motor when it comes time. For $1030 you can buy the TH basic kit and make everything else cheaper. Always places to save money depending how resourceful you are. If money was no object I would buy the full kit and mot mess with it.
I'm sticking to LT1 since my wife bought me motors to do my first motor build...I feel obligated to go through with it and look forward to see how well I can make this LT1 run...looking for 380+ to the wheels with simply getting a combo that works well together.
Plus it's fun to tell people "it's just a LT1 build" in the world of LS = god
I will eventually switch to 24x since tuning ability is dwindling and I will just bake that cost into the next motor build. Hell I may switch to 24x with the current motor then swap everything to new motor when it comes time. For $1030 you can buy the TH basic kit and make everything else cheaper. Always places to save money depending how resourceful you are. If money was no object I would buy the full kit and mot mess with it.
I'm sticking to LT1 since my wife bought me motors to do my first motor build...I feel obligated to go through with it and look forward to see how well I can make this LT1 run...looking for 380+ to the wheels with simply getting a combo that works well together.
Plus it's fun to tell people "it's just a LT1 build" in the world of LS = god
Thread Starter
Joined: Aug 2008
Posts: 1,306
Likes: 1
From: Eau Claire, WI
I use TTS Datamaster for logging, TunerCat OBD1 for tuning and have an Intronics PP3USB eprom programmer. It is available through Transtronics website. You will also likely need a UV eraser to keep reusing the eproms.
And 27c256k chips have gotten harder to find over time so you definitely want to get 5-6 and reuse them as you modify your tune.
And 27c256k chips have gotten harder to find over time so you definitely want to get 5-6 and reuse them as you modify your tune.
- SST27SF512 Flash Chip
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Yes, for the money, but TTD datamaster to log as much as you want...it's well worth the money even if you need to scan for trouble codes and diagnose issues.
I did the "trial period" and realized I'll have my car for a while and have NO way to scan for codes....parts stores don't offer support for OBD1 systems anymore. It helped me diagnose a AC compressor issue...male plugs on sensor were bent not contacting harness and showed me 0psi when running the AC. It's fairly powerful to log multiple parameters.
I did the "trial period" and realized I'll have my car for a while and have NO way to scan for codes....parts stores don't offer support for OBD1 systems anymore. It helped me diagnose a AC compressor issue...male plugs on sensor were bent not contacting harness and showed me 0psi when running the AC. It's fairly powerful to log multiple parameters.
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Joined: Aug 2008
Posts: 1,306
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From: Eau Claire, WI
You will be ahead going with a LS considering aftermarket support and tuning ability. But you need a different K member and some other assorted things to get the LS into a LT1 car...and IMO I would have just bought a LS1 car by the time you are done unless you have a LS donor car.
I will eventually switch to 24x since tuning ability is dwindling and I will just bake that cost into the next motor build. Hell I may switch to 24x with the current motor then swap everything to new motor when it comes time. For $1030 you can buy the TH basic kit and make everything else cheaper. Always places to save money depending how resourceful you are. If money was no object I would buy the full kit and mot mess with it.
I'm sticking to LT1 since my wife bought me motors to do my first motor build...I feel obligated to go through with it and look forward to see how well I can make this LT1 run...looking for 380+ to the wheels with simply getting a combo that works well together.
Plus it's fun to tell people "it's just a LT1 build" in the world of LS = god
I will eventually switch to 24x since tuning ability is dwindling and I will just bake that cost into the next motor build. Hell I may switch to 24x with the current motor then swap everything to new motor when it comes time. For $1030 you can buy the TH basic kit and make everything else cheaper. Always places to save money depending how resourceful you are. If money was no object I would buy the full kit and mot mess with it.
I'm sticking to LT1 since my wife bought me motors to do my first motor build...I feel obligated to go through with it and look forward to see how well I can make this LT1 run...looking for 380+ to the wheels with simply getting a combo that works well together.
Plus it's fun to tell people "it's just a LT1 build" in the world of LS = god
Hard for me to comment on that eprom burner specifically or the use of the larger 512 chip, but larger would work. The TC bin files are 32 kb only. Also TC knows what he is doing so that all should work. You could also look at Craig Moates' Moates.com and get info. Another source is http://www.caspeed.com/lt1/.
You should also be able to find some bin files around from the old days that will give you a good start on tune depending on what you are going to do. Let me know if you can't as I still have quite a few as I still have one of my 93s. The FBody has been sold but the YBody is still in the garage.
You should also be able to find some bin files around from the old days that will give you a good start on tune depending on what you are going to do. Let me know if you can't as I still have quite a few as I still have one of my 93s. The FBody has been sold but the YBody is still in the garage.
Thread Starter
Joined: Aug 2008
Posts: 1,306
Likes: 1
From: Eau Claire, WI
Yes, for the money, but TTD datamaster to log as much as you want...it's well worth the money even if you need to scan for trouble codes and diagnose issues.
I did the "trial period" and realized I'll have my car for a while and have NO way to scan for codes....parts stores don't offer support for OBD1 systems anymore. It helped me diagnose a AC compressor issue...male plugs on sensor were bent not contacting harness and showed me 0psi when running the AC. It's fairly powerful to log multiple parameters.
I did the "trial period" and realized I'll have my car for a while and have NO way to scan for codes....parts stores don't offer support for OBD1 systems anymore. It helped me diagnose a AC compressor issue...male plugs on sensor were bent not contacting harness and showed me 0psi when running the AC. It's fairly powerful to log multiple parameters.
Thread Starter
Joined: Aug 2008
Posts: 1,306
Likes: 1
From: Eau Claire, WI
Hard for me to comment on that eprom burner specifically or the use of the larger 512 chip, but larger would work. The TC bin files are 32 kb only. Also TC knows what he is doing so that all should work. You could also look at Craig Moates' Moates.com and get info. Another source is http://www.caspeed.com/lt1/.
You should also be able to find some bin files around from the old days that will give you a good start on tune depending on what you are going to do. Let me know if you can't as I still have quite a few as I still have one of my 93s. The FBody has been sold but the YBody is still in the garage.
You should also be able to find some bin files around from the old days that will give you a good start on tune depending on what you are going to do. Let me know if you can't as I still have quite a few as I still have one of my 93s. The FBody has been sold but the YBody is still in the garage.
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From: centerville, ohio
Thread Starter
Joined: Aug 2008
Posts: 1,306
Likes: 1
From: Eau Claire, WI