[s-cars] Chip upgrades

[Taka Mizutani]

Scott-
V70R uses a KKK turbo, not a Mitsubishi.

The low pressure cars use a Mitsubishi.

Taka


On Thu, Mar 19, 2009 at 8:51 AM, Scott Justusson <qshipq at aol.com> wrote:

>
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Taka Mizutani
> Sent: Wednesday, March 18, 2009 7:23 PM
> To: S-CAR-List at audifans.com
> Subject: Re: [s-cars] Chip upgrades
>
> >Thanks for chiming in, Scott- you're the man when it comes to AAN
> stuff.
> >I thought that the MTM chipset was optimized for US 95 octane (R+M/2).
> My
> >mistake.
>
> Well, you posted that MTM chipset was for 98 RON (EURO).  That's my
> understanding as well.  My point is that's 93RON (US)
>
> >Won't you run into driveability issues if you increase injector size
> w/o
> >altering the fuel maps? I'd be
> >concerned about idling and emissions.
>
> As I posted earlier, the RS2 injector has a better resolution and
> atomization than the AAN injector.  I haven't put those injectors in a
> stock Motronic, but have several running with the Stage I> k24 equipped
> AAN motors, that routinely pass emissions.
>
> >What about swapping N75 valves from later cars? Good, bad or no change?
>
> Got into a healthy discussion with Nate at 034 regarding the N75 valve.
> Yes, swapping valves makes a difference.
>
> >Personally, I hate the heat soak from running that much boost with a
> small
> >turbo- BTDT twice. The RS2 turbo
> >is a nice compromise that gives you a ton more power without working
> the
> >turbo too hard.
>
> Depends on what you want it to do.  I personally like the k24 for
> everything it does, torque rules the planet, not much will beat that
> turbo for that purpose.  The heat soak comes from running on track or
> long efforts at WOT.  For street driving, the k24 is tough to beat, but
> it can only put down 280 continuous hp.  The RS2 and their copies (034
> 2871/3071) are good turbos for those tracking their cars and/or want
> more continuous horsepower.
>
> >Any idea what the V70R turbo specs are like? No one seems to know on
> the
> >Volvo side- with 2.5L I-5, the engine
> >is awfully close to the Audi and the turbo response is laggier than a
> K24 >on
> >an AAN but pulls longer and harder
> >than the K24 on the top end- 80-130 is really, really nice.
>
> I've driven the EVOLVE chip/downpipe/exhaust version of the v70R and I
> like it too.  350hp/400torque chipped with a large displacement engine
> makes me think Audi should have done a 2.5L from the factory.  I don't
> have any experience with the Mitsubishi turbo, but think that a big
> project.  I also suspect that it's the RS2 of Volvo.  A 2871/3071 turbo
> seems to have more potential for the AAN motor.
>
> >If the V70R KKK has a similar bolt pattern or orientation, that would
> be a
> >nice source for a bigger blower- just recently
> >out of production, much easier probably to find than an RS2 w/o going
> to a
> >Garrett/KKK hybrid.
>
> The mitsus don't have a similar bolt pattern, and I wasn't under the
> impression that turbo was easy to find.
>
> HTH and my .02
>
> Scott J
>
>