1997 Corvette-Are there tuning limitations?
08-27-2013, 09:47 PM
#1
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1997 Corvette-Are there tuning limitations? Like the title says, 1997 C5 Corvette. Twin turbo, you name it done to the motor. Custom billet throttle body. Very built 4L60E. All kinds of custom made parts. 5 year project and will be next summer before the motor starts for the first time. I have noticed that as far as tuning that the early year C5's are different, I don't know how. Are there limitations to tuning? Would a later year computer (ECM?) be compatible with the '97? At this stage any options are do-able. Anyone know for sure about the first year C5's? I fully intend on learning whichever software I eventually purchase. Done every single thing myself so far.
Thanks, RonO
Thanks, RonO
Last edited by Lasershop; 08-27-2013 at 09:51 PM. Reason: typo
08-27-2013, 10:26 PM
#2
I would re-pin the harness and run a 99+ PCM if it were mine and your wanting to use a stock pcm. Your setup can be tuned with the current pcm but it wouldnt be fun to tune and more and more shops are getting away from tuning 97-98's. . EFI Live doesnt have any custom OS for a 97 but Im 99% HP Tuners does since they have one for 98's.
08-28-2013, 09:13 AM
#3
I would say if you plan to push over 15psi of boost it might be in your best interest to update to the newer 99+ pcm, a little it more work but in the long run would at least allow you to run 3 bar custom operating systems, real time tuning, etc.
-Bill
-Bill
08-28-2013, 10:33 AM
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Not afraid of work.. but what does that mean? Is the harness different? Do you know what modification will be needed? You guys answered my question and I will definetly make the change. I dont want to leave anything on the table. Are there any other electrical parts that will need replaced?
08-28-2013, 10:37 AM
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I would re-pin the harness and run a 99+ PCM if it were mine and your wanting to use a stock pcm. Your setup can be tuned with the current pcm but it wouldnt be fun to tune and more and more shops are getting away from tuning 97-98's. . EFI Live doesnt have any custom OS for a 97 but Im 99% HP Tuners does since they have one for 98's.
Is this what I want?
http://www.ebay.com/itm/2003-Corvette-Engine-computer-12200411-Programmed-to-your-VIN-PCM-ECM-ECU-/181071973707?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a28bb0d4b&vxp=mtr#ht_586wt_1165
08-28-2013, 01:06 PM
#6
That will work but you can't have it 'programmed to your vin' per se. You will have to use a later model year operating system and depending on what you want to use to tune it you may or may not be able to use 'your vin' in it. If you want that source to program it with a later model stock OS to start with you will have to give them a vin from a later year vette. You don't hear much about the 99-02 PCM swaps for the 97-98 Vettes like you do for the 98 F-bodies. There may be other compatibility issues with the other systems in a vette that are not issues when doing that swap in an F-body also.
08-28-2013, 02:51 PM
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That will work but you can't have it 'programmed to your vin' per se. You will have to use a later model year operating system and depending on what you want to use to tune it you may or may not be able to use 'your vin' in it. If you want that source to program it with a later model stock OS to start with you will have to give them a vin from a later year vette. You don't hear much about the 99-02 PCM swaps for the 97-98 Vettes like you do for the 98 F-bodies. There may be other compatibility issues with the other systems in a vette that are not issues when doing that swap in an F-body also.
Definetly want my VIN. Dont want any DMV/legal/police problems down the road. That unit is basically the first one I saw on Ebay.
I totally not clear where this leaves me. Is that the wrong year? I dont know what the difference is between the years. It will be months before I even get to the tuning part but Im asking the questions and trying to plan it it now.
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08-28-2013, 03:58 PM
#8
I keep pcms in stock, they are easy to come across. To run a 99+ pcm in a 97/98 you have to re-pin both the red and blue connectors on the pcm. You basically move almost every wire from the red to the blue connector and change the pin locations in the process. Its not hard but is time consuming. I can put any VIN you want into the pcm.
08-28-2013, 07:41 PM
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08-28-2013, 08:33 PM
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I keep pcms in stock, they are easy to come across. To run a 99+ pcm in a 97/98 you have to re-pin both the red and blue connectors on the pcm. You basically move almost every wire from the red to the blue connector and change the pin locations in the process. Its not hard but is time consuming. I can put any VIN you want into the pcm.
08-28-2013, 11:45 PM
#12
Im lost.
Definetly want my VIN. Dont want any DMV/legal/police problems down the road. That unit is basically the first one I saw on Ebay.
I totally not clear where this leaves me. Is that the wrong year? I dont know what the difference is between the years. It will be months before I even get to the tuning part but Im asking the questions and trying to plan it it now.
Definetly want my VIN. Dont want any DMV/legal/police problems down the road. That unit is basically the first one I saw on Ebay.
I totally not clear where this leaves me. Is that the wrong year? I dont know what the difference is between the years. It will be months before I even get to the tuning part but Im asking the questions and trying to plan it it now.
08-30-2013, 11:37 AM
#16
