Cannot find anyone to do a tune
#3
Le Mans Master
Because corvettes in general are difficult to work on , because of limited access to "everything". Many shops either don't work on them or at a substantially higher cost. F body owners are in the same boat. Local corvette club may point you in the right direction finding shop or person who does quality work. Good Luck
#5
Safety Car
#9
Melting Slicks
To my knowledge, 1996 is the first Corvette with OBD2 software. 1995 had an OBD2 port but ran OBD1 software, a weird pain in the butt. 1992-1994 had OBD1 port and software, which is more "normal" for that era. Someone correct me if wrong.
#10
You can buy the software to log the car running. Then get a mail order tune, thats where you send your VCM/PCM/ECU/ECM/ engine computer(whatever you prefer to call it) and a list of all the modifications you have through the mail or UPS/FEDEX, ETC. and have someone tune it and send it back. Then you log it more, email the log files, and send it back for changes if needed.
I have a 93 which is OBD I and got an email tune, thats where the modification list gets sent in, changes are made, they email me the new tune and I burn it to the chip myself. Then send log files of different running conditions and email that in and more changes are made. Then I just download the new tune and burn it to the chip.
The other option is to buy everything you need to reflash the computer and make your own changes. It takes a long time and a lot of test driving and trial and error, reading, etc. If you have free access to a dyno thats a huge plus (but no one does) otherwise find an empty street and several tanks of gas and a few months.
I have a 93 which is OBD I and got an email tune, thats where the modification list gets sent in, changes are made, they email me the new tune and I burn it to the chip myself. Then send log files of different running conditions and email that in and more changes are made. Then I just download the new tune and burn it to the chip.
The other option is to buy everything you need to reflash the computer and make your own changes. It takes a long time and a lot of test driving and trial and error, reading, etc. If you have free access to a dyno thats a huge plus (but no one does) otherwise find an empty street and several tanks of gas and a few months.
#11
Safety Car
If you are interested I am visiting my brother in Omaha this weekend and if you let me know I could street tune the car sometime on Saturday or Sunday. Just an option! I live 9 hrs from Omaha so this is a one time deal. It gives me something to do while my family sleeps in.
#12
Race Director
I honestly HATE IT for you people who live in areas where NO ONE will service your Corvette.
OPTIONS.(unless you might not have considered them)
Take you car to a local tech school AFTER talking with an automotive instructor and have your car ( if allowed) be used as an instructional piece so the students can be taught how to check and repair it and you get it fixed UNDER supervision.
Buy the CORRECT factory manuals and tools and LEARN and do it all yourself. YES...this can be costly...but if you are not able to travel some distance to get it repaired....this may be your only option. You would be surprised on how far away I get Corvettes from time to time.
Even though sending off parts for re-programming and all that is 'do-able' and can provide an improvement....it is wise to still have some form of scanner that will allow you to read that is being shown and understand what it means.
DUB
OPTIONS.(unless you might not have considered them)
Take you car to a local tech school AFTER talking with an automotive instructor and have your car ( if allowed) be used as an instructional piece so the students can be taught how to check and repair it and you get it fixed UNDER supervision.
Buy the CORRECT factory manuals and tools and LEARN and do it all yourself. YES...this can be costly...but if you are not able to travel some distance to get it repaired....this may be your only option. You would be surprised on how far away I get Corvettes from time to time.
Even though sending off parts for re-programming and all that is 'do-able' and can provide an improvement....it is wise to still have some form of scanner that will allow you to read that is being shown and understand what it means.
DUB
#14
Team Owner
Member Since: Sep 2003
Location: Freedom is never more than one generation away from extinction.
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St. Jude '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-‘19-'20-'21-'22-'23-'24
Or MrWillys a member on this forum.
FWIW C4's and gen3 Camaros/Firebirds were the beginning of custom tuning.
Not a lot of people got involved as the technology was rapidly changing.
Now that technology and information is dissolving with time.
Might not be anyone in your town but there are tuners still in business on this forum or their customers to refer.
FWIW C4's and gen3 Camaros/Firebirds were the beginning of custom tuning.
Not a lot of people got involved as the technology was rapidly changing.
Now that technology and information is dissolving with time.
Might not be anyone in your town but there are tuners still in business on this forum or their customers to refer.
#15
Instructor
Member Since: Dec 2013
Location: Port St Lucie Florida
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My brother and I both tune our own C4's (and other vehicles) and no question it was a very worth while investment.
And having said that, I see no substitute for data-logging your own car doing this yourself!
And having said that, I see no substitute for data-logging your own car doing this yourself!
#16
Advanced
Thread Starter
If you are interested I am visiting my brother in Omaha this weekend and if you let me know I could street tune the car sometime on Saturday or Sunday. Just an option! I live 9 hrs from Omaha so this is a one time deal. It gives me something to do while my family sleeps in.
#17
Advanced
Thread Starter
#18
Instructor
Member Since: Sep 2011
Location: Fort Ripley Minnesota
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IMO the PCM for less chips are just a shot in the dark, as no A/F ratio data is ever exchanged. I just had my vett dynoed last friday after installing a TPIS mini ram intake. Slight A/F changes in small RPM areas make a big Hp difference.
#20
Safety Car
I only own 93s (and C6Z) now so miss the 94, which was a Z07 car.
To the OP: What is requiring the tune? Something simple like gears or a major engine upgrade, which is not so simple. If simple, get the software, download your stock .bin file and send it to someone to make your simple change. If major changes are needed, get the software to download your stock file and send it off to a mail order shop and upload itself.
I use CATS (TunerCat) software for my OBDI cars, but they do make an OBD II model and I find it cheaper and easier to use than the LT1Edit, which I also own. I use DataMaster for my logging software. This is very useful so you can log the car after you put in the new tune, so your mail order tuner can run an iteration No 2, based on the logs from his first approximation.
Call Jeff Creech at Carolina Auto Masters in N or S Carolina (I forget which). I don't know if he does mail order work, but I do know he is a wizard at tuning on his own dyno. We had him fly out to N Cal for a weekend to do a tuning weekend for about 10 of us several years ago.
Last edited by pkincy; 05-27-2015 at 01:03 PM.