MC-1 MC-2 - Block any difference?

[Livolsi, Stephane]

Is there any one single thing that you can look at on an MC engine to determine if it is mc1 or mc2?

> -----Original Message-----
> From: JShadzi at aol.com [mailto:JShadzi at aol.com]
> Sent: February 23, 2004 11:04 AM
> To: benswann at comcast.net; jeg1976 at yahoo.com; quattro at audifans.com
> Cc: Ben Swann
> Subject: Re: MC-1 MC-2 - Block any difference?
> 
> 
> Sure, the MC2 really responds well in the low end, specially
> with turbo spool up, though if you're shooting for 350+hp, 
> the extra 10 ft lbs of torque in the MC2 isn't really 
> noticeable if you can make another 50hp in the power band.  I 
> dynoed (in my MC2'd 80tq) about 250 wheel HP on street gas, 
> and about 300 WHP with 1/2 100 octane, timing was maxxed out 
> on the street gas.  
> 
> Javad
> 
> >What about low-end torque?  I'd expect to be getting some gains here
> >with the MC-2.  Correct?
> >
> >To add some more information - I plan to use the 3B Motronic fuel
> >injection which I can chip as desired.
> >
> >I will also be using the T3/T4 turbo probably with factory 2-peice
> >manifold and plenty-big exhaust.
> >
> >Intake will either be stock MC head or considering NG head
> and maifold
> >- either way enlarged valveing, port and polish in the works.
> >
> >So I plan to do the MC-2 bottom end at this point, but looks
> like I can
> >do this using an MC-1 block and install the MC-2 pistons and crank.
> >
> >Ben
> >
> >----- Original Message -----
> >From: <JShadzi at aol.com>
> >To: "Jim Green" <jeg1976 at yahoo.com>; "Ben Swann"
> <benswann at comcast.net>;
> ><quattro at audifans.com>
> >Sent: Monday, February 23, 2004 1:22 PM
> >Subject: Re: MC-1 MC-2 - Block any difference?
> >
> >
> >> I agree with Jim on the 15psi, I'd say up to 300 crank HP
> you're fine
> >> with
> >the MC2 and street gas, but above that range the MC2 gets very
> >sensitive aobut ignition timing, and the MC1 is a much 
> better motor to
> >tune.  Now throw in some 100 octane in the picture and the MC2 is
> >perfect.
> >>
> >> Javad
> >>
> ><snip>
> >> >
> >Jim Green wrote:
> >> >Ben, they are the same in every way except for the pistons, so you 
> >> >can mix and match whatever you want.
> >> >
> >> >The only problem I have with the MC-2 is the higher
> compression. If
> >> >you're really going to hod rod the ur-q, then you
> probably want the
> >> >MC. The MC-2 gets really testy above 15 psi on pump gas.
> The MC is
> >> >much easier to tune, and you can run a pretty normal advance on 
> >> >high boost. I saw timing levels in the low single digits at high 
> >> >boost on the MC-2. Now with my stacked headgaskets, I'm usually 
> >> >-10 or more BTDC. Still not as good as a 20v will see, but much 
> >> >better than -4 dbtdc.
> >> >
> >> >Header=MC
> >> >No header=MC-2
> ><snip>
> >
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