Any Suggestions on This?

[billschroeder5842]

Well Done! You did a great job!

Now, please consider a trip to a solid ZR1 tuner. You have improved enough that you will need to have your chip re-tuned to the the most out of your car.

[32valvZ]

Originally Posted by billschroeder5842

Well Done! You did a great job!

Now, please consider a trip to a solid ZR1 tuner. You have improved enough that you will need to have your chip re-tuned to the the most out of your car.

Previous owner had one of Marcs' chips installed... I guess he sent for it and Marc sent it. I also have the original. I have allot of extras stuff with this car actually, starter, wires, drive shaft, OEM wheels... and more...seller even gave me a Snap On Scanner that I dont really know how to use...

Anyway, do you think Ill need a reburn or another chip now because of the headers? I was wondering if the altitude here where I live at 5200' might necessitate the need for a reburn also...

The car runs phenomenally well... good idle, very little hunting on decel, but.... once in a while I get some light backfiring... dont know if that can be addressed with the tune...

[HAWAIIZR-1]

Nice job and glad you got it all sorted out. Yes, Marc will tune out the backfire. I have his ver. 4 chip for my car and will have to send to him once I install my headers.


Sent from my iPhone using ZR-1 Net Registry

[efnfast]

I would think headers, exhaust and elevation would warrant a tune. Marc can turn the decel backfire on or off. I'm not sure if it's adjustable or not. I like a little backfire on decel, but of course that makes you a cop magnet even more than just driving a Vette.

[Mystic ZR-1]

Originally Posted by efnfast

I would think headers, exhaust and elevation would warrant a tune. Marc can turn the decel backfire on or off. I'm not sure if it's adjustable or not. I like a little backfire on decel, but of course that makes you a cop magnet even more than just driving a Vette.

Steve
It’s not the backfires that draws the cops to you...
It’s the screeching tires and 2 long black strips you leave behind
everywhere you go! 😋

[WARP TEN]

Originally Posted by Paul Workman

The spring supports reduce some of the sound that otherwise is transmitted from the exhaust to the cabin. And, they provide some flex in case the pipes bottom on something solid, e.g., speed bumps.

Paul is right on both counts. If you attach the exhaust system directly to the frame without the springs you are transmitting not only sound but engine and drive train vibrations to the frame. I think you would feel it, and in addition to avoiding stress on all the joints on a hard bottoming as Paul said, I would think very aggressive acceleration might do some twisting as well. In any case you might try some tests with the springs attached and not to see if you can tell a difference.-Bob