Re: Chip mods at high altitude

[KLeeds <kerry.griffith@m.k12.ut.us>]

Doug O'Neill wrote:
> 
> I've been considering chipping my 97 A4 1.8Q, so I've been following the
> chip threads posted here.  However, I still have a few reservations.
> 
> I live in Boulder, CO.  Will the chip mods have the same effect at 5600'
> above sea level?  Most hop-up shops claim 40-60hp gains using their
> chips; what percentage of those gains am I likely to actually see?
> 
> Additionally, would I still be able to pass emissions tests with the new
> chip?
> 
Ned Ritchie told me my 20v turbo would make about 250bhp @7000' vs 277 
@ sea level. He explained that the altitude sensor prevents the 
beloved KKK from spinning it's little guts out. I fear this may be a 
bit optimistic, as I was told that power loss due to altitude is as 
much as 3%/1000' But I'm sure there are others on the list with a more 
accurate figure.
		The bad news is, you'll lose power. The good news is, you won't lose 
as much as atmo cars (heh heh!)

		Emissions? Not sure, but guess you'll be OK.

Leeds