This uses a $40 Mini MO ARM processor from Mikroe
  and a low cost 100 psi pressure sensor to recordthe pressure in all three chambers of a Wankel rotary engine while it is turning over with the starter. This gives a very good evaluation of any Wankel engine condition. Replaces a device Mazda charges a lot of money for :)

A modified old spark plug can be used to make a pressure fitting.

I'll do a PC board and a kit of parts for this.

The screen shots say it all.

No more using your thumb on the spark plug hole :)

Paul Lamar
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Looks promising to me. I'll check it against the Mazda tm tester I have....
Put me on the list.....
Marc W.

What did you pay for that Marc ?

There is one on Ebay for $120 USD. It looks like RS232 so you will need
an RS232 to USB adapter.

http://www.ebay.com/itm/mazda-rx8-rx-8-rx7-rx-7-rotary-engine-custom-digital-compression-tester-tool-/201019306786?pt=Motors_Car_Truck_Parts_Accessories&hash=item2ecdaf3322&vxp=mtr


Paul Lamar

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