[s-cars] ECU what is the trick to opening it

[Mihnea Cotet]

Miikka, see answers below:

At 20:43 3/01/2004 +0200, Miikka Salonen wrote:
> > Unfortunately just a race cat with the very same
> > programming as MTM 1+
> > can't give 280 HP. In order to take advantage of the race
> > cat (or decat
> > pipes), you need to have the chips remapped with even more
> > timing advance
> > and leaner mixtures at WOT.
>
>Well, that could be right. I really don't know about the "stage"
>system, because with local MTM dealer does not use any. I thought that
>the + ment more tight chip. Here you could get 280-290hp set and it
>did require different exhaust setup.
>
>Leaner mixture? I thought you need to be little bit rich to get
>optimal mixture and prevent knocking.

Nope, that's false and just BS. Too rich means losing power because of a 
"damp" combustion chamber, BTDT several times on the dyno. Of course, too 
lean means easy knocking, but knocking means 14.3:1 AFR at WOT and a good 
HP/torque mixture is around 13.2:1 AFR at WOT...


> > because of what. "Generic" chips as MTM's have
> > intentionally limited HP so
> > differences between 2 engines can be taken into account
> > with no damage (yet
>
>One good reason to live in Europe: Both of my cars have MTM chip, but
>program is driven for _my car_ by MTM's Peter Link. Here it is
>possible to finetune the chip and it is not SO expensive (at least
>compared to base price of the chip), problem is that Link visits
>Finland not so often. By the way, Peter seems to prefer finetune
>mostly in street, not in dyno.
>
>-Miikka-

Hehe, didn't you notice I live in Europe? Apart from that, I don't need 
Herr Link (who is a man for whom I have invaluable respect from a tuner's 
standpoint BTW) to tune my car because I do it myself, and I prefer as well 
to fine-tune cars on the street, the main reason behind this being that you 
don't drive your car on a dyno but on the street.


HTH,

Mihnea