[s-cars] FW: Re; RS2+

[Mihnea Cotet]

Just a thought guys, on a Dynojet or whatever the name (the dyno that 
measures HP at the hubs, not at the wheels), the figures you'll get will be 
higher than what you'll get on a dyno that measures at the wheels.

Just because, the biggest driveline losses are through the tires AFAIK and IME.

Thus, I won't be surprised at all by 300 HP at the hubs, just because that 
will make around 270 at the wheels on a "real" chassis dyno.

HTH,

Mihnea

At 12:57 9/01/2004 -0700, mlp qwest wrote:
>Just a suggestion - it won't be apples to apples, but to make the comparison
>somewhat meaningful, be sure in addition to the torque/bhp graph, you have
>them hook up, and get a print out of the manifold boost profile your dyno
>runs are produced under.
>
>The "who balls are bigger" comparison, especially for questions re Cody's
>turbo as compared to a "stock" RS2, whatever a "stock" RS2 might be, will be
>difficult with out some idea of the boost, as controlled by the ECU and the
>particular chips you've selected, run on your test.  I think the boost curve
>will best tell you how quickly the turbo spools up AND then can hold a set
>psi as rpms climb and the turbos deliverable cfm move across its compressors
>efficiency map.
>
>Personally, trying to run a meaningful comparison against Hap's turbo is
>pretty difficult given the huge disparity not just in compressor, but in
>Hap's vs. the stock intercooler size..... hum,
>
>Now that I think of it, what I would be willing to do if you want to Cody,
>and ASW is willing, is make my big side to side unit off the Green car
>that's sitting on the floor up at ASW (like we did on Frank's car) available
>to you to make a dyno run with the bigger IC on the car and see what, if
>any, difference that makes.
>
>Otherwise I suspect the stock IC will heat soak pretty quickly (the dyno
>doesn't have the fittings for our cars to really control / adequate push
>real world amounts of ambient cooling air through the intercooler) and cut
>into your ability to get "real" road condition results that a 30~50mph +
>road speed would allow you.  Cody, give me a call if you're interested.
>
>For a guess, how about @ 300rwp on the dyno @ 24psi boost peak?  Perhaps
>330+ with the larger IC.  When are you doing this again?  This weekend, the
>10th/11th or next?
>
>mike
>
>~-----Original Message-----
>~From: s-car On Behalf Of Lewis, Gary M
>
>~Ouch.  Im getting turbo envy...
>~
>~Does size matter, or is it a motion of the ocean thing?  Oh wait,
>~I've got it... "Don't worry, it looks small now, but wait, it get's bi...."
>~
>~I'm dyno curious, both over Cody's car (nearly identical to mine),
>~and yours.  I think it is awesome that you broke the limitations
>~myth of the KKK #6 hotside (~375 hp).
>~
>~Gary
>~
>~> -----Original Message-----
>~> From: CaptMagu at aol.com [mailto:CaptMagu at aol.com]
>~> Sent: Thursday, January 08, 2004 6:59 PM
>~> To: cpayne at bconnected.com; s-car-list at audifans.com
>~> Subject: Re: [s-cars] FW: Re; RS2+
>~>
>~>
>~> Cody
>~>
>~> I saw your cute little turbo at ASW. Gee, is that really big
>~> enough to push
>~> any air? What time are you scheduled for the dyno? I go at
>~> 1300 hours;-)
>~>
>~> Hap, wonderin in Everboost, Maguire
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