MicroSquirt.com read only forum (Jan.15,2018)

Lance,

The issue is not to undercut the Microsquirt on price but simply to offer a different product at a competitive price for the users. With the old price structure, it made sense. With the new pricing, it is more difficult to justify the additional cost even with features not available on the ...

So that makes the Microsquirt module no longer competitive at all.

Jean

grippo wrote:... a new dual channel VR sensor processing chip ...

So is that the onsemi NCV1124 or the MAX9926 or something else?

Actually, if it's the same as for the 23-pin Ampseal, the different colors have different positions for the keys and slots meaning they will only connect with a connector of the opposite sex having the same color. But you can always grind the plastic key in the header or make new slots in the plug ...

These are my opinions on the 3 options:

1. Current limiting resistors will work but depending on your injectors they may be affected by it with a slower response as you mention. And depending on your injector size that may or may not be an issue.

2. PWM is not possible on the Microsquirt module ...

It's not because it's 5.5, it's because it's 11. You take the value of a single injector even if you put 2 (or more) in parallel. A high impedance needs full battery voltage for the duration of the pulse width and not a peak&hold setup.

Jean

It's not a USB to RS232 cable but a USB to TTL serial. For it to work with the Microsquirt, you'd have to remove the RS232 chip and jumper its inputs to the outputs.

Jean

Peter Florance wrote:Now I'm thinking the JimStim may not be the way to go as I recall the 2nd trigger signal will either rise or fall in time with the tach out?

Not necessarily. That depends how you define the wheel pattern. Both outputs can rise and fall independently.

Jean

Peter Florance wrote:Depends if I can remember how to down load the wheel into Jimstim.

Let me know if you need a hand with this.

Jean

Ignition timing will also affect EGT.

Jean