[s-cars] Whats the best chipset for a full RS2

Wed Nov 2 19:30:56 EST 2005

Dan,

The Mihnea chip is very different than the MTM in that it is
what I'll call smooth in its' delivery.  The MTM was what I'd
call a switch type, it was on or off, no real in-between.

When Mihnea was tuning my car the first run was freakin'
awesome, it felt like it would keep pulling and never stop. In
a way he spoiled me, because in fact I think he was
overboosting the hairdryer. He dialed it all back so that the
damn thing wouldn't self destruct, it's all seemingly a very
flat constant delivery of power.  I must admit howvever, that
this was a bit anti-climatic, as I enjoyed the kick in the
pants feel of the MTM programming, there was no doubt when the
boost was on with the MTM. The MRC programming is more
"stately",  like not realiziing that you are going that fast
until you glance at the speedometer.

Boost varies depending on the gear and all sorts of other
things, but there are times when my peak boost stretches
beyond the markings of my VDO 25 psi gauge, so I'd estimate
the range to be between 22-27 psi.

I have only had the FMIC on for a little over a week and I
haven't had a chance to flog it, but I was not really
expecting it to make more power, only to keep making the power
I had on hand for a longer amount of time (delaying heat
soak), but I'm certainly not as technically saavy as some of
the others on the list.  

I'm going to the VIR Driving School in a couple of weeks so
I'll have a better idea after that.

Good Luck.

-m

---- Original message ----
>Date: Tue, 1 Nov 2005 21:02:28 -0800 (PST)
>From: Daniel Koropchak <myhoppen at yahoo.com> 
>Subject: Re: Whats the best chipset for a full RS2  
>To: manuelsanchez at starpower.net
>Cc: "s-car-list at audifans.com" <s-car-list at audifans.com>
>
>   Manny
>   Thanks for your input! At one time I also had the
>   MTM Stage 1 w/3bar sensor. Thankfully I never
>   experienced pinging. I did however find the
>   mid throttle response to be very abrupt compare to
>   the lehmann chipset. This only became annoying while
>   trying to be moderately agressive during city
>   driving. From the responses I do believe MRC will be
>   my choice. It seems they can offer custom chipsets
>   for an array of setups, not just a broad range
>   chipset. Hoppen with his MTM chipset could not tell
>   me if it was programmed with the RS2 MAF & Exhaust
>   cam in mind. How is your throttle response? Is your
>   boost 24-26psi? I was also considering at this point
>   looking into a FMIC. I would just hate to wast money
>   on upgrading the chipset again. Unfortunately unless
>   I find a reasonable FMIC this will not happen. Have
>   you noticed a great improvement with the addition of
>   yours? 
>   Thanks Dan 
>
>   manuelsanchez at starpower.net wrote:
>
>     Daniel,
>
>     I had an MTM Stage 1+ (3 bar bosch) that would
>     occassionally
>     ping on what I would call mid throttle tip in. I
>     was told that
>     this was a known and common issue with this
>     chipset. By
>     switching to SUNOCO Ultra, this condition lessened
>     a bit but
>     was still there.
>
>     When I was trying to decide about the RS2
>     conversion I weighed
>     my experience with the MTM and decided that I
>     wanted to reduce
>     the chance of any detonation, so I was a bit leery
>     of trying
>     the RS2 MTM chipset.
>
>     I spent some time looking around, but was
>     fortunate that
>     Mihnea was coming Stateside to do batches of
>     in-car custom
>     tuning sessions. I was again fortunate enough to
>     get a spot in
>     the session at Paulies in CT. I specifically asked
>     Mihnea to
>     be 'conservative' in the tuning, as I really
>     wanted the piece
>     of mind that I wouldn't hear any audible pinging
>     like th! e old
>     MTM 1+. I'm glad I did, because shortly thereafter
>     SUNOCO
>     decided they were no longer going to sell Ultra 94
>     in my area.
>
>     I'm happy to say that I've never heard any pinging
>     with the
>     MRC chipset with either Ultra 94 or normal super
>     unleaded.
>     I've also convinced myself that there's nothng I
>     can really do
>     about the pinging you can't hear, so I'm not
>     worrying about it.
>
>     If you manage to get Mihnea back to NA for another
>     round of
>     tuning, I'd be interested in having him retune for
>     my current
>     configuration.
>
>     Good luck.
>
>     -manny
>
>     95.5 S6 Avant
>     engine mods: rs2 em, rs2 turbo, 37lb/hr lucas
>     delphi
>     injectors, Tom and Marc FMIC
>     Oh yeah and the Big Red Stebel horn, that's good
>     for 5bhp
>
>     Date: Mon, 24 Oct 2005 20:59:14 -0700 (PDT)
>     From: Daniel Koropchak <MYHOPPEN at YAHOO.COM>
>     Subject: Re: [s-cars] Whats the best chipset for a
>     full RS2 setup
>     To: FvAMI at aol.com
>     Cc: s-car-list at audifans.com
>     Message-ID! :
>     <20051025035914.19315.qmail at web60815.mail.yahoo.com>
>     Content-Type: text/plain; charset=iso-8859-1
>
>     When I purchased the Lehmann chipset it was
>     packaged with the
>     RS2 turbo & exhaust manifold but not the injectors
>     or RS2 MAF.
>     This makes me feel it has the appropriate
>     programing for the
>     turbo but possibly not the Injectors & MAF. I do
>     suspect that
>     it is running rich but have not installed the
>     Air/Fuel guage
>     yet to verify. Sean Douglas has left his remarks
>     about his
>     experiences with various chipsets for which I am
>     grateful. Are
>     there any others out there that had similar
>     problems as I ?
>     Are there any others out there who can share their
>     knowledge &
>     experience with various chipsets for Our RS2'd
>     cars. I have
>     not heard about MTM or MRC. Please help I need
>     desperately to
>     solve this problem.
>
>     FvAMI at aol.com wrote: In a message dated 10/22/05
>     8:02:39 PM
>     Pacific Daylight Time, myhoppen at yahoo.com writes:
>
>     Now ! I see he only offers the MTM version. At
>     this point I have
>     the RS2 turbo, Exhaust cam & Exhaust manifold. The
>     consistant
>     strong pulls ended however when I installed the
>     RS2 injectors
>     & MAF sensor.
>
>     If you want to use the MTM K24 software then
>     switch your
>     injectors back to stock. Otherwise you will be
>     running much
>     too rich. Also the boost will be less than
>     possible at
>     redline. The boost above 5500 rpm is dialed back
>     for the K24
>     and the RS2 can sustain a much higher boost level
>     all the way
>     to redline ... one of the main reasons to put in
>     an RS2 turbo.
>
>     Best regards,
>     Feico van der Laan