Honda S2000 AP1 on MS3

General talk about successes. See older information on MSRUNS forum.
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Vortec350s10
Helpful MS/Extra'er
Posts: 45
Joined: Tue Nov 12, 2013 5:04 pm

Honda S2000 AP1 on MS3

Post by Vortec350s10 »

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.
suberimakuri
Master MS/Extra'er
Posts: 632
Joined: Sun May 02, 2004 2:16 pm
Location: Auckland, NZ
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Re: Honda S2000 AP1 on MS3

Post by suberimakuri »

Well done, thanks for providing this info.
socalsean
MS/Extra Newbie
Posts: 1
Joined: Wed Dec 12, 2018 10:20 pm

Re: Honda S2000 AP1 on MS3

Post by socalsean »

Hello,

I'm a new member and can't message you. I have some questions about getting my f20 ap1 running on megasquirt 3 in my 1976 BMW 2002. Would you be able to message me? Thanks so much!

sean
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