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gavinc69 gavinc69 is offline
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Join Date: Jul 2008
Location: Bournemouth UK
Posts: 996
Garage
The MS tach wire (grey one if I remember) is wired to the tach out on the MSD (this also goes into the Porsche wiring harness and feeds the rev counter I think).
So basically the MSD tach signal wire has a small electrical block on it that both the rev counter & MS ECU connect to.
I wired it up identically to how it was when working as FrankenCIS.

I can defiantly remember seeing the rpm dial on TunerStudio moving but I don't remember what readings.
But I will double check the tach wiring and readings first thing tomorrow.
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1980 SC Flatnose, Euro 3.0, LW Flywheel, 993 Cams, Port & Polish Heads, RS Cut Valves, MSD 6AL, Blaster Coil, Magnacor Leads, Boxster Brakes, WEVO Mounts, TRG Roll Bars, Rollcage, RSR rear fenders, OE Short Sift, K27 7200 Turbo Conversion, OBX Headers, Tial Wastegate, EFI MicroSquirt v3

Last edited by gavinc69; 03-12-2016 at 11:28 AM..
Old 03-12-2016, 11:25 AM
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