by 74_Vega_GT » Mon Jan 15, 2018 10:59 am
Thanks for the info on the MSD adapter, but it creates new questions. The PDF that I read concerning the 8910 and 20 adapter differentiates between the ignition pulse and the ignition voltage. What I need to know is, did all 75 Cosworth Vegas have electronic ignition? Did all Cosworth Vegas come with the electronic fuel injection or were some available NEW with the dual Weber setup and would thaty make a difference as to whether or not it had an H.E.I. system or a points system.?? I am hoping not to kill the Cosworth 8K rpm tach that I have. How does one know when an adapter is needed and which of the adapters is needed in this instance? We are using the inside and outside harness from the 74GT.
Also, the wiring diagrams I downloaded here on the 74 and 75 Vega show no tachometer wiring, Is there a Mitchell wiring diagram for the GT dash that I may have missed?
Thanks in advance.
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1974 Chevy Vega GT Hatchback
1982 Chevy S-10 longbed 2.8v6 A/C
2005 Chrysler Crossfire SRT-6 Coupe,Black
2005 Chrysler Crossfire SRT-6 Coupe,Silver Sapphire Blue
2005 Chrysler Crossfire Roadster N.A., Silver Sapphire Blue
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