The other two chips in the MEMCAL (was Re: More Horsepower. More Torque!!)

[Marc Randolph]

On Wed, Mar 31, 1999 at 10:07:28AM -0500, David A. Cooley wrote:
> >Sorry, I should have stated more properly that if you remove the cats,
> >you aren't street legal.  When I said that, I had in mind the ZR-1,
> >where the cats are attached to the exhaust manifolds, so going to headers
> >would mean no cats (unless you pay even more for headers with cats).
> 
> Ah..
> Wasn't aware the ZR1 had the cats as part of the manifolds... Makes sense
> though with the limited room under a vette.
> Can they be removed at all from the manifolds?
> If so, sending the manifolds to be extrude honed might be worth a few HP.

Unfortunately, they can not be easily removed... I suppose you could
saw them off and weld them back on, but I'm not sure enough HP would
be gained to be worth the effort.

Back to ECM related issues - I've looked through the archives and
it appears that everyone decided that the two chips in the MEMCAL
(the two small chips under the ESC unit) are resistor packs.  Was this
ever confirmed?  Also, does the ESC part of the MEMCAL put out a
digital or analog signal to the ECM?

The reasons for these questions is this type of thing could influence
how far away from the ECM I'd be willing to relocate the MEMCAL
(ie, closer to an emulator).

Thanks!

   Marc

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  Marc Randolph     -    mrand at pobox.com    -     PGP keyID: 0x4C95994D
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