[s-cars] Re: wrt pushing RS2 to the edge...

[QSHIPQ at aol.com]

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Minhea:
The gains are minimal/nothing compared to the guy that goes after Density
Ratio, it's in the equation Calvin presented, and it's in the RS2 turbo Map
from KKK.  If they are indeed true, then increasing pressure is a higher risk
than increasing density.

I'd also point you to the RS2 Map and say that repeated hits at 2.8PR are
pushing the RS2 to the edge, because low CE and 150,000rpm IS the edge by
definition.  I'd also venture to say that most of the chip mods disable the
altitude compensation, which, if you simply look at the formula of PR, is
pushing the RS2 over the edge.

In a nutshell, audi turbo I5 are pretty bulletproof.  Let's not at all
confuse that with what is "pushing the RS2 to the edge", cuz if you go over
2.3PR, you are closer to the edge than audi ever intended or designed.  You
push 2.8PR, just a couple thousand feet in altitude puts you "over" the edge.

Minhea, tuning or btdt doesn't change the definition of being at the edge.
You only have to have Calvin's formula and a turbo map to claim that.  Both
confirm my thinking that Density Ratio is the key to Forced induction as you
get into "silly" boost profiling.  Minhea, you can't change the physics
involved with chip tuning and a dyno.  Lucky, is the ability to defy the laws
of physics with BTDT.  I believe that quote comes from Einstein hisself.

Not sure what you are arguing.  At 2.8PR you are a couple PSI away from
disaster (turbo overspin = shrapnel).  I argue, you can get the same power at
2.4PR while decreasing combustion temps, AND boost levels.

Win/win.  Why fight it.  Cuz you can?

Ok, my definition of silly.  So noted.

Scott Justusson


In a message dated 5/11/2003 2:40:40 AM Central Daylight Time,
mik at info.fundp.ac.be writes:

So, with this last email I'm out of this "pushing RS2 to the edge" thread,
I've said enough times where's the edge and I think I know how to get there
without breaking anything on the track or on the street so you can continue
to argue about whatever you want, but that's without me, I have enough work
to do so I can't follow this indefinitely.

Mihnea