U7198 and tune for elevation difference

[vette.c5]

I search what to change on tune to compensate elevation
I think I have to modify enrichment, but what % and lean or rich?

on 716ft elevation I make a 12.8 ET at 1/4 mile (1.89 at 60ft)
on 2133ft elevation I made a 13.4 ET at 1/4 mile (2.03 at 60ft)
on 2731ft elevation, I make a 13.6 ET at 1/4 mile (2.05 at 60ft)

Is factory tune would be better than predator one with elevation ?

My vette is a '02 C5 MN6 (not Z06)
mods:
KN intake
160°F thermosstat
Dynatech Powermaxx (long tube headers and hiflow cats)
Corsa catback
Predator 2.13 tune installed
I use 93 octane gas

Could you help me ?
Thank you for any advice.

[mikel]

At elevation, you generally need to lean a tune out as there is not enough O2 available.
The tunes do this, so they are better than stock.
I would suggest you let us make you a new tune for the longtubes which should help a bit.

Thanks

[vette.c5]

Did you mean that it is not necessary to modify anything when elevation change?
All is automatic ?

I'll let you make anything you want

What did you need for this ?
factory tune backup ?

Thanks

[mikel]

Did you mean that it is not necessary to modify anything when elevation change?
All is automatic ?

I'll let you make anything you want

What did you need for this ?
factory tune backup ?

Thanks

Yes, email me the backup file and I'll have a new tune made for you.

Thanks

[vette.c5]

Yes, email me the backup file and I'll have a new tune made for you.

Thanks

Email send
Regards
Marc

[vette.c5]

Tune received and installed
Thanks

Marc