Anyone have a used 3b chipped ecu, or 20vt eproms for a reasonable price?

Ned Ritchie Q at
Wed Jan 11 13:17:39 EST 2006

Patrick & all,

Alex's comment "The 3B's ignition system is simply not up to the task."
needs minor clarification:

While it is true that the 3B ignition is not up to the task of the higher
pressures that the 3.0 Bar transducer allows all hope is not lost.
IA developed a modified ignition that prevents those bent connecting rods
that were experienced by all tuners, and even Audi which led to the
development of Audi's use of individual coils.  This ignition modification
was not provided on the IA 2.5 Bar packages, but only on a few of our later
rare 3.0 Bar packages.

Yes we bent a few connecting rods using the 3.0 Bar package before this
modification allowed for the higher boost.

I ran this modified ignition with pressures at 97 inches of Mercury on my
personal 3B powered 5000 from 1986 while pulling a trailer up mountain

Yes, it is proprietary so don't ask. 


-----Original Message-----
From: 200q20v-bounces at [mailto:200q20v-bounces at] On
Behalf Of patrick.anderson1 at
Sent: Tuesday, January 10, 2006 12:07 PM
To: Ben Swann; Eric_R_Kissell at
Cc: 200q20V at
Subject: Re: Anyone have a used 3b chipped ecu,or 20vt eproms for a
reasonable price?

Ben, I do not know enough about these things to answer those questions so I
forwarded this string to Alex at IA to see if he could provide any input. He
wrote up the following and asked me to post this to the list as he isn't

>From Alex at IA:
The best way to describe the VMAP is as a Bosch Emulator.  It converts the
value that its transducer is seeing into what the Bosch unit would normally
output.  It does not "truncate" anything.  It is exceptionally well built
and only after testing have we added it to our product line.

You can get more information about the VMAP here:

The VMAP, like all electronic devices, is susceptible to ESD (Electro Static
Discharge).  The effects of ESD might not be obvious immediately.  In many
cases ESD simply shortens the life expectancy of a given product.  I would
caution anyone installing it (or any other component) to do so with the
proper protective environment.

On the subject of 3 bar transducers. . . .

Several years ago Ned and I tested the 3.0 bar units with the 3B (in my 4k
race car).  After six months of trying to overcome the issues of extra boost
we determined that the extra power was not worth the risk, problems and
extra wear and tear.  The 3B's ignition system is simply not up to the task.
In the end, we went back to the 2.5 bar transducer and arrived at what now
is (basically) the IA Stage III+.

It proved to be a smart choice.  The car was run in 3 enduros (2 @ 6 hours
and one 8 hour), SCCA sprint races, numerous QCUSA track days (with multiple
drivers, there were days it was only shut off for fuel and lunch) and still
continues to turn laps for the current owner.  All it does is run on the
track and continues to do so after (literally) hundreds of hours.

Lastly. . . .

To avoid any conflict with the list rules, I don't post here (or on other
list or forums), to quote:

Please note that for sale ads of any kind(parts, cars, etc) and ebay auction
announcements are NOT permitted under any circumstances. Please make sure
you understand the Audifans posting guidelines before you post a message to
the list.

Frankly, after reading a few posts, I am a little confused.  Please clarify
the lists position on Vender (or Vender's Agent) posts.

staff at

-------------- Original message -------------- 
From: "Ben Swann" <benswann at> 

> Does the VMAP actually contain two pressure transducers that are switched 
> independantly, or a 2.5 with a resistor Mod to fake to 3Bar or vice versa
> truncate the read of the 3 bar when it goes to 2.5 or 2 Bar. Ineither
> I consider the VMAP to be rather pricy for what it does, but perhaps I
> some education on how it works specifically and don't have the full story.

> I can get the 3 bar Motorola P.T.s, but last I checked I had to buy in a 
> quantity that required large cash outlay due to a large minimum number,
> all I needed was one. Maybe if there is interest, I can put something 
> together GP wise. I suspect however most of our cars are not prepped to
> 3Bar. 
> Ben 
> ----- Original Message ----- 
> From: "Patrick Anderson" 
> To: "Ben Swann" ; 
> Cc: <200q20V at> 
> Sent: Tuesday, January 10, 2006 12:30 AM 
> Subject: Re: Anyone have a used 3b chipped ecu,or 20vt eproms for a 
> reasonable price? 
> > From what I hear they are getting pretty damn unobtainable. MTM just 
> > bought the last bunch in existence at Bosch...about 300 from what I am 
> > told. Your best bet may be the Vmap solution. Alex at Intended 
> > Acceleration just got a new batch of those in. 
> > ----- Original Message ----- 
> > From: "Ben Swann" 
> > To: 
> > Cc: <200q20V at> 
> > Sent: Monday, January 09, 2006 1:09 PM 
> > Subject: Re: Anyone have a used 3b chipped ecu,or 20vt eproms for a 
> > reasonable price? 
> > 
> > 
> >> Eric, 
> >> 
> >> As you recall, I helped Mihnea with his Group Purchase awhile back, but

> >> currently offer a different chipset along with a 2.5 bar pressure 
> >> transducer and complete installation instructions. Both chipsets are 
> >> good. I am running the set I offer in both my 200Q20Vs. 
> >> 
> >> I offer this in a similar fashion as the DIY QLCC kit. 
> >> 
> >> Thanks for the good word. 
> >> 
> >> BTW anyone know a good source for 3 Bar Pressure Transducers that don't

> >> cost an arm, leg or first born? 
> >> 
> >> Ben 
> >> ----- Original Message ----- 
> >> From: 
> >> To: "Ben Swann" 
> >> Cc: <200q20V at>; 
> >> Sent: Monday, January 09, 2006 3:46 PM 
> >> Subject: Re: Anyone have a used 3b chipped ecu, or 20vt eproms for a 
> >> reasonable price? 
> >> 
> >> 
> >>> 
> >>> Ben Swann - You offer Mihnea's (MRC) chips, right? 
> >>> 
> >>> Eric (Satisfied customer with MRC chip & Ben Swann modified 2.5 Bar
> >> 
> >> _______________________________________________ 
> >> 200q20v mailing list 
> > 
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