Honda S2000 AP1 on MS3

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Honda S2000 AP1 on MS3

Postby Vortec350s10 » Sun Jul 02, 2017 10:49 am

Just thought I'd do a quick post letting people know what worked for me to get the F20C running on MS3. There is not a lot of people running these on a Megasquirt so info is pretty scarce...

- Never got the RC51 ignition code option to work so ended up using the dual wheel option. 12 tooth cfrank, 1 tooth cam
- Ground off 2 of the 3 lobes on one of the cams to create a one tooth cam sensor.
- Used stock crank and cam VR sensors with stock wiring.
- Crank sensor works perfect with both pots on main board full CCW
- Cam sensor was a challenge to eliminate sync loss 11 and 17. Ended up with a 550 ohm resistor shunted across the two wires fir the cam sensor and also placed a 7.5k resistor inline (series) with the cam signal wire (in my case the green Cam In wire going to the MS3 expansion board). After doing that it works great with the R11 and R32 pots also full CCW.
Vortec350s10
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Re: Honda S2000 AP1 on MS3

Postby suberimakuri » Sun Jul 02, 2017 7:33 pm

Well done, thanks for providing this info.
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