[s-cars] Pinging w/MTM 1+

[Trevor Frank]

Any though on having someone come out and tune chips for 91 octane.  I
suspect if we could get several cars of different tuning out in
California, with the worst of 91 then the chips would work for any
similar car in the U.S.

RS2'ed, stock fuel pressure.
Stock

Rs2'ed with RC engineering 370 injectors or Accel 40lb injectors, both
much cheaper than real rs2's.

Big maf'ed 50 trim with headers and 3.5" exhaust, or something like
that.

Any thoughts?

We could tune on a dyno with wbo2, egt's and maybe even 4 gas.


-----Original Message-----
From: TM [mailto:t44tq at mindspring.com]
Sent: Monday, January 19, 2004 6:53 AM
To: 'Robert Myers'; 'Dave Forgie'; s-car-list at audifans.com
Subject: RE: [s-cars] Pinging w/MTM 1+

Bob-
It was my understanding that MTM 1+ was designed for 98 RON fuel,
not 95. That's the problem- 98 is pretty high and we don't get really
good fuel everywhere. Too bad, I'd love to have affordable 100 octane
fuel at the pumps.

Taka

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of Robert Myers
Sent: Monday, January 19, 2004 6:35 AM
To: Dave Forgie; s-car-list at audifans.com
Subject: Re: [s-cars] Pinging w/MTM 1+



Am I just lucky?  I have had no problem with pinging using the MTM 1+
chips
while running mostly 93 octane fuel in my '95 urS6.  It did get a rare
fill
up with 94 but that was rare.

BTW, the RON and MON numbers are simply rating numbers 93 (RON + MOM)/2
is
the very same fuel as 95 RON.  RON rating and MON ratings on the very
same
fuel are always different numbers with the RON rating always a higher
numeric value than the MON rating number.  This means that the RON
number
for any specific fuel will always be a higher number than the (R+M)/2
rating FOR THE SAME FUEL.  95 RON and 93 (RON + MON)/2 are equivalent.

At 11:01 PM 1/18/2004 -0800, Dave Forgie wrote:

>Scott: This is why I hate the MTM+1 chip: a) it is very non-linear
>(On/Off) and b) everyone I know or have heard of has pinging problems
>unless they are running 94 octane (or more) fuel.  91 doesn't even come

>close. I think the chip was designed for 95 RON (not our (RON+MON)/2
>crap).
>
>Just my observations.
>
>Dave F.
>
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Stop Mad Cowboy Disease.

Bob
*****
  Robert L. Myers  304-574-2372
  Rt. 4, Box 57, Fayetteville, WV 25840 USA  WV tag Q SHIP
  '95 urS6 Cashmere Grey - der Wunderwagen   ICQ 22170244
  http://www.cob-net.org/church/pvcob.htm
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