Hello,
I am new on this forum.
I plan on using megasquirt on my 383 sbc engine, on a 67 Camaro.
I prepared the trigger wheel, which is now installed on the engine, but I have some problems finding a matching sensor.
I am looking for a VR or hall sensor.
the wheel is a 60-2 , made of 3mm steel, the diameter is 200mm.
the teeth width is 5.2mm, the gap width is 5.2mm, and the gap depth is 5mm.
http://g.scheidt.free.fr/camaro/datalog/_ICT5597.JPG
My first idea was to use a 1gt101 sensor from honeywell,
http://search.digikey.com/scripts/DkSea ... 80-2021-ND
but my wheel seems to small for this sensor, the only one I find is a fork sensor: SR17C-16:
http://search.digikey.com/scripts/DkSea ... 80-1993-ND
Do you have others options for this kind of wheel?( I would have prefered a tubular sensor, but the only one I find are either very expensive or too large)
Is it possible to conect directly a vr sensor without using the HEI module on the 3.0 board?
Thanks in advance
Regards
Guillaume
trigger wheel sensor
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: trigger wheel sensor
Personally, I'd try to find one that's specifically designed for an automotive application, maybe something like one from an early 90's Ford edis system like THIS
Re: trigger wheel sensor
Is there a specific wheel design to use with this sensor? doesn't it need a wider wheel?
Re: trigger wheel sensor
The stock trigger wheel that this sensor is normal used with is definitely thicker than the one you're using maybe 5 or 6mm but I think it'll probably work for you anyways. I'm pretty sure we've used this type of sensor with an Electromotive HPX ignition system, and the trigger wheel we use with that system is at least as thin as the one you're using. I'll see if I can double check on that sensor for you.
Re: trigger wheel sensor
I just talked to a friend of mine who's got about a thousand times more experience with VR sensors than I do and he says the Ford sensor should be fine with a 3mm thick trigger wheel.
Re: trigger wheel sensor
Thank you, i will try that, we can also find these sensors in european ford I think. 
Concerning the wiring, is the HEI module still needed to convert the signal to square wave, or is it possible to hook it directly on the 3.0 board?
Concerning the wiring, is the HEI module still needed to convert the signal to square wave, or is it possible to hook it directly on the 3.0 board?
Re: trigger wheel sensor
I'm sure you'll be able to find some European cars with a suitable sensor, if not a Ford then a VW or something else. Double check the manuals but I'm almost positive the MS v3.0 has the appropriate VR circuitry on board.