rider384

No no, not in '96, I still own it, it's my weekend warrior .

Car has coils, no distributor.

What is Motronic? I am not familiar with that name.

Just Me

brand/model name of Bosch integrated motor electronics. e.g.: no distributor; combined fuel and spark control module.

G

4Driver4

The Miata would have a distributor, but there is no room due to the firewall (Miata engine was "borrowed" from the 323 turbo). Instead, there is a cam angle sensor and a set of coil packs. The cam angle sense can be moved for adjustment, like a distributor.

So while it doesn't have a distributor, you still need a timing light to adjust ignition timing.

As an aside, I retrofit a knock sensor into my 95 Miata. Still need to set the distributor for the base.

Ming 2.7T

thats is true. Was discussed way back in 2001-2004.

Found this using search:

Also, when you reset the ECU it starts out at Optimum levels, then pulls back accordingly when it senses knocks pings.

found this from way back, hope this helps some,,, "Garrett(GIAC)explains chip"

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Hi Guys,

It seems there has been some mis-information circulating about our X chip. And, since some of the other tuners are speculating about how we did it, we would like to set the record straight.

We began programming Motronic ME 7.x in the US before any US tuner (Vr6 99.5/TT 99.5) and have been successfully recalibrating Motronic for many cars since 1991.

Most new cars with knock detection have what is called "dual mapping" (in use actively since 1989) once a certian knock count (an 8 bit value, stored in a register of the Infinion 80x167) is reached, it reverts to a "low octane map" by setting an internal register that only resets itself on restart. It will try to run super unleaded maps on start up until a further knock count is reached once again.

With the X chip technology we have mastered control of this advance correction/selection. Furthermore we mapped this program on a car in California since we are now based in Irvine. Our best fuel is 91 octane. Since ignition advance is more dependant on fuel octane, there is room for it to run even better on 92-94 octane fuels. The ME7.x motronics have some of the fastest adaption of all motronics as far as adv correction goes (+15/-15 degrees adv. easy, more than enough to adjust for 2 points of octane). So when there is no knock you will get more advance and more power! Papa Smurf tested it and proved it by running as the first car in the 12s in the USA. And he continues to run there. He tested it in desert heat at elevation. I personally checked his car for an elevated knock count and it was negligable.

The trick was resetting the advance maps (as most of them are 3d (as you can read in any fuel injection manual) , but the correction for load, water temp, air intake temp are mapped in a 2d fashion, some with 8 bit some with 16 bit resolution., some are just one vaule) The trick is knowing how to coordinate these advance maps not the 3d advance correction tables and getting them to work well within the adaptive parameters of the ECU for pump 91 octane fuel as a minimum. We also went to GREAT lengths to make sure the boost would hold stable under rapid transitions, and remain buttery smooth in normal driving (our 2.7T specialty, esp. the '01 M/H ECU).

A lot of thanks goes to M. Quigly, Pappa Smurf, AWE, and EVO for all of the testing that went into the development of this truly powerful program.

If you have any questions please feel free to email us.

If you like the X program, try the XR, it has a violent take off. But it does require 100-103 max octane.

thanks,