If I return to stock, other than a loss of hp and throttle response, will there be any negative effects from my custom tune for the following?:

Return to stock air intake...

Return to stock exhaust manifolds, and exhaust system all the way back...


In other words, will I generate codes? will the car run rough? Can I leave the tune alone?

 

I would think that you would need to take the tune back close to stock for driveability.

DSTURBD

 

For sure!

 

That would be my thoughts too.

 

You'll need to have your tune redone as your A/F ratios will be off. (A/F=air /fuel)

 

Why are you wanting to do this? Just curious!

 

 

My guess would be preparation for sale. Modded cars don't sell as well as stock, and sellers usually do not recoup what they spent and will make more $$$ if they sell the mod parts separately from the car.

 

I took my 2003 back to the dealership and they reflashed the EPCM for me. Not a big job, Every body raves about how great a tune is. .. But it just isn't my cup of tea !

 

The tuner should have keep your stock tune in his hp tuners and just put it back to stock no big deal. Robert

 

is stock tune is easy to get, free or atleast cheap

 

Why go half way ?

If you are going back to stock, go all the way back.

 

Nothing wrong with a stock 'Vette!!!

Literally years of R&D and testing go into making these cars perform as flawlessly as possible across entire ranges of uses and purposes they will end up in with various owners. Hence all of the spy photos of camoflaged test mules of the next generation cars caught out and about.

It's kind of like saying, "We're going to build a Saturn V rocket, but along with the capability of reaching the moon, it must be absolutely tractable and comfortable cruising Sunset BLVD. at thirty miles an hour with no issues of driveability!!"

Personally, I don't think the engineers who develop our cars ever get anywhere enough credit!!!!

As a Harley mechanic, I built a great many 98 cu. in. and bigger stroker motors (now, they're coming from the factory that big but we were doing it with Shovel Head motors), and generally to get it to perform perfectly, you just about have to build it to a specific purpose. A road motor is going to be set up quite differently than a 1/4 mi. race motor, and making one that can do both?!?!?!? Oh my God!! That can quickly become an absolute nightmare!! NO way could you ever charge for the time that would actually be involved in that kind of project to have perfect driveability in both situations!!

Just my $0.02.

DSTURBD

 

Yes, in preparation to trade the car in and reap the cash from the mods that have no value to a dealer. I am thinking long term to the C7, so have put together a plan. Others may be thinking the same. For example, I just got a GM credit card and am using that exclusively now....currently up to $3000 can be applied to a new Vette, so anything along those lines later on when the C7 comes out is nice to look forward to. Back on point, I figure I can get close to $5000 selling off mods on my 97....dealer will not pay any extra for them for sure, so why not return to stock before trade in. Oh, thanks for your input guys....any other ideas let's hear what you got.

 

Just sell the car outright and not worry about the dealer value. You're always generally going to less at a dealer, but I'm sure you're aware of this.

 

None of those mods "required" a change in the tune. Lots of people run stock tunes with LT's and a CAI.

My suggestion would be to put the stock crap back on and see how it runs. You're really just guessing what the tuner did anyways.

 

Bingo...I think you got it right...kind of what I was thinking...I should be able to drive it to the dealer for trade in regardless of the tune. Of course, I would get the estimate before demodding it....

 

i'm waiting for the parts list