[Diy_efi] Timing Advance Curve?

[Patrick Cahill]

Heehee, sorry about that, I didn't mean it as an insult but as I am new to
this list I was unaware of your background. The way the post was worded it
sounded like you were a little lost.

But do you really fit MoTeC to DFR/X's? We have since gone away from using
them as they are too simplistic for some of the stuff we were getting into
(yes, even the M800's) and are now using EFI Technology. V8Supercar over
here just went to the M48 as a control ECU but that was done more through
costs. What we found with the more exotic Nations Cup stuff (basically N-GT)
was that the features and flexibility just didn't exist. We were going to
start using the new Bosch Motronic MS3.X ECU's until we saw the price. But
even they were a bit too simple.

Hell, we (nor MoTeC) can't even get an M4 to run an F3 engine properly.


I have been a Motec dealer for quite a few years and before that spent a lot
of
time straightening out what other dealers tried to do. My eyes are pretty
sharp.. So thanks for the offer but I will pass. All that data belongs to
the
customer as I had said before. The Miata has an M4 with advanced tuning and
logging. You can data log the WBO2 with it being activated. I have to find a
very large trend before I change the fueling at the track compared to what I
get
on the dyno. I generally look at the O2 readings and if they are incorrect
or
different from the dyno look further into the data for the why are they
different and fix that.

This Miata is sort of the bottom of the heap compared to the usual project
to be
honest. I am finishing up a Motec dash and M48 system for a Porsche 962 this
week. and usually work on vintage GTP stuff for the most part. The
occasional
Cosworth DFR/DFX in open wheel cars as well. Next project is to sort out a
2002
Porsche GT3R dash that has to run in the Rolex 24 at daytona then on to a
1998
Buick indy lights car that needs a tune up.. Then fly out to Dallas to tune
the
962. My company also designs and manufactures custom slide throttles for
race
engines. Have won the Rolex 3 or 4 times with them. One year we had 5 of the
top. F
7 cars running them.

It might beg the question do you have any maps you want me to look at...
Dave


Patrick Cahill wrote:

> I can back up what Dave said about timing on these things. They are quite
> amazing in terms of efficiency and detonation resistance. The Mazda motor
> that I referred to in a post from a couple of days ago as being detonation
> proof was a 1.6L Miata engine and it is actually the test mule at MoTeC
> right here in Melbourne. I have seen it run 40plus deg timing on pump fuel
> without pre igniting. As Dave said, it just loses power. I can only put it
> down to an excellent cylinder head design as the main factor.
>
> As a consequence of this, they do like to run on the lean side and I
> wouldn't bother with anymore than 32deg on any Miata. What MoTeC does your
> mate have? If it has the internal logging and lambda upgrades, these can
be
> an easy way to tune on the run so to speak.
>
> I have a great deal of experience with all MoTeC systems (V8Supercar to
F3)
> and would be happy to look at your map for you if you would like a second
> set of eyes.
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi





_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi