Altitude reply to Bruce Bell: K24 vs RS2 Spool-up. RS2 Results.. .

[Lewis, Gary M]

Test was performed at approx 200ft+/- above sea level.  Definitely less than
900ft, as I live at 900, and it was performed at much lower altitude.

Sorry I didn't reply directly (I tried), but the server here has blacklisted
your domain for some reason.

Gary

> -----Original Message-----
> From: Bruce Bell [mailto:bbell at surview.com]
> Sent: Friday, August 02, 2002 12:33 PM
> To: Lewis, Gary M; 'quattro'
> Subject: RE: K24 vs RS2 Spool-up. RS2 Results...
>
>
> Nice report Gary! Always good to see numbers. At what altitude are you
> running?
>
> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of Lewis, Gary M
> Sent: Friday, August 02, 2002 11:20 AM
> To: 'quattro'
> Subject: K24 vs RS2 Spool-up. RS2 Results...
>
>
> Back from vacation, RS2 installed, tested this morning...
>
> 1990 200TQW, 1991 TQ Intercooler, 1.8 - 1.9 bar chip, 1.8 bar
> spring, Bypass
> Valve, Bilsteins, Redline in tranny and diffs
> Outside Air Temp - 63F
> Humidity around 35-40%
> Car completely warmed up.
> Gas tank full (Chevron 91 octane)
> Flat test area
> 2 runs each
> Avg of 2 runs
>
> 3rd gear, start at 1600 rpm for all tests.
>
>  						K24
> 	RS2
> 2000 - 3000 RPM (29 mph - 41 mph) 3.205 secs	3.57 secs
> 3000 - 4000 RPM (41 mph - 55 mph) 2.485 secs	2.17 secs
> 4000 - 5000 RPM (55 mph - 66 mph) 3.035 secs	2.59 secs
>
> One 5th gear run per Bernard, start at 1600 rpm
>
> 						K24
> 	Rs2
> 2000 - 3000 RPM (54 mph - 75 mph) 10.90 secs	12.41 secs
>
> I suspect the turbo may have added 1/2 to 1 sec onto the cars 1/4 mile
> times.  Scott M. recorded 14.75 qtr mile times.  This mod
> should get me low
> 14's/high 13's based on the above (and utter specualtion...).
>
>
> Some notes.  Car is DEFINITELY slower below 2400 rpm, both in
> numbers and
> feel.  It just feels like the turbo is 'heavier', like it
> needs more energy
> to spool up.  However, it doesn't have that "Oh My God" rush
> that the K26
> does at 32-3600 rpm.  It just spools up smoothly to 1.9 bar at around
> 28-3000 rpm vs 26-2800 for the K24.  Between mid 2000 rpm
> level and up the
> car is definitely faster w/the RS2 vs. the K24.  It is still
> very drivable,
> you just need a bit more throttle in 1st gear.  Not as much
> as the K26, but
> a bit more than the K24.  With a high RPM launch, it feels
> faster than the
> K24, you just need more gas...
>
> It also seems to stay spooled up between shifts much better
> than the K24
> during hard/harder than typical wife grocery shopping driving
> (you know,
> that area of right foot application before full throttle
> where The Wife(tm)
> starts saying, "Honey, aren't you driving a bit fast?").
>
> A super interesting note.  Regardless of how hard I run the
> car, when I open
> the hood, the IC to TB hose (Michelin Man for the initiated)
> is COOL, like a
> cucumber.  I mean to the touch, like it is 75F in an
> otherwise hot car on an
> 85F ambient day.  I think Javad's suspicions about heat soak
> in the K24 are
> well founded.  This turbo runs COOL!!!
>
> I think the RS2 is a good mod for MC1 and MC2 cars for high
> altitude, track
> and 1/4 mile, higher boost (this is why I did it), very hot
> climates, and
> lots of long sustained hill climbing.  If you typically drive
> around town,
> rarely run hard through the gears, or just want a smoother
> driver, go with
> the K24.  Great spool up.  I think depending on the
> application, the K24 or
> the RS2 are the way to go.  The K26 seems to be a poor
> comprimise of both.
> It doesn't spool like the RS2, and has some of the heat soak
> problems the
> K24 does.
>
> Gary Lewis
> 1990 200TQW, 1991 TQ Intercooler, RS2 turbo, 1.8 bar spring,
> chip, Bypass
> Valve, Euro's, Bilsteins, Redline in tranny and diffs
>
> Planned upgrades: RS2 Turbo (Next Week), H20 Injection (Aug
> 02), Keyless
> Entry (Aug 02) 2.2 Bar Upgrade (Sept 02),
>  034 EFI (working with Javad...)...
>
>
>
>