Re: Alfa chips

["Joseph Kanellopoulos" <kanellj@domain.elided>]

Two Italian companies that seem to sell chips are below.

The first one claims that there is a 40HP increase at Max HP for the 3.0

http://www.allcarracing.com/ENG/frames.htm

http://www.energicar.com/alfa_romeo.htm

I would agree for the first one that it seems to be a Motronic chip since
non of the ECU numbers match our cars.

And yes the fuel injection box is analog but the ignition box on the 3.0 is
digital and is run by an 8035 with some sort of EPROM in it. But the 2.5 box
seems to be analog.

Joseph

----- Original Message -----
From: "Brian Shorey" <bshorey@domain.elided>
To: "Alan Lambert" <lechefgerard@domain.elided>; <Aibrucia@domain.elided>;
<alfa-digest@domain.elided>
Sent: Friday, November 02, 2001 8:36 PM
Subject: RE: Alfa chips


> > That's an interesting fact--what do you suppose Tom Zat has been doing
> > with his "Pandoras Box"? Or Jonathan Kirshtein with HIS modifications?
>
> Well, inside the L-Jet box you'll find an analog computer.  You can change
> the basic parameters by swapping out a bunch of $0.19 resistors.
>
> The key, of course, is knowing which ones to swap, and what to swap them
> with.
>
> I know that Jonathan, Fred, and one other individual spent huge amounts of
> time doing r&d to figure it all out.  I'm guessing they had to reverse
> engineer the box, draw up a schematic, just to figure out which resistor
> does what.  Then they spent a bunch of track time to figure out the ideal
> values to replace them with.  I also seem to remember that they melted
more
> than one set of pistons in the process.
>
> Which is why a modified ECU, with a couple of bucks worth of resistors in
> it, is worth what they charge for them.
>
> Zat, of course, does the same basic thing, however I don't know how he
> derived which ones to change and what to change them to.  I've heard
rumors
> that he might have had a head start of some sort.
>
> I've used the Jonathan/Fred ECU and it does make a noticeable difference.
> My Verde (for sale - BOXBOROUGH MASS) came with a Zat ECU in it, but I've
> never swapped in a stock one to compare it to.  The car is quite fast,
> however.
>
> HTH,
>
> bs
>
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