elturbonitroso

does anyone using the jbperf dual vrs board on a rx7 unmodified cas do the values on the resistors and caps have to be changes to make it on on a turbo2 cas.thanks

The Griffin

The FAQ sticky has the schematic(post #6, Third last pic) to use with the RX-7 CAS. You could compare it to the jb board schematic to see what's different. If you are using a V3.0 megasquirt board you only need to build the right side LM1815 circuit in both schematics (U2).

http://www.jbperf.com/dual_VR/dual_VR_v1_0_sch.JPG

Just a quick look, looks like you would need to change R10 to 82K ohm and C8 to .01 uf and jumper pin 2-3 on JP3 on the JP perf. board. Also there is no R7 in the FAQ schematic on the VR2 input circuit. I'm guessing you could just leave that out.

elturbonitroso

ook thanks