MikeyZee Posted April 24, 2008 Share #1 Posted April 24, 2008 Hey All, Just gotta tell you with all the info here I got the 240 to fire right up with the 280 dizzy. I even found a few threads on NOT using the spendy little 12-80 module. It works great! With the 12-80 module I would have to use the Weber starting procedures (two pedal pumps and third pedal to start). With the 12-80 module removed using the magnetic pickup from my MSD 6 connected to the 280's dizzy green and red wires it fires with no choke, no pedal pumps, no one third pedal! Fires up with less than a full crank too! I'm sold on that configuration! (I'll post schematics and pics later) But my tach does not work!!!!! I'm guessing I need the MSD 8910 tach adaptor. The docs I have seen show to hook it up using the switched power (black/white) and the white from the MSD. This is for when you are using the 12-80 module and the white goes to the module. I am not using the white I am using the magnetic pickup (green+violet). Anyone have an idea on how to get that working? Thanks again everyone. BTW....I have two 12-80 modules for sale!!!! anyone? anyone? Mike Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/ Share on other sites More sharing options...
beezee Posted April 25, 2008 Share #2 Posted April 25, 2008 I have the same set-up msd 6 with an early mag pick-up dizzy (pre 12-80) and required the http://www.classiczcars.com/photopost/showgallery.php?cat=500&ppuser=15041User Gallerytach adapter .Just wire to msd instructions to restore the tach operation Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/#findComment-245226 Share on other sites More sharing options...
beezee Posted April 25, 2008 Share #3 Posted April 25, 2008 Don,t know what happened there ,but yes you do need the tach adapter Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/#findComment-245228 Share on other sites More sharing options...
MikeyZee Posted April 25, 2008 Author Share #4 Posted April 25, 2008 It looks like instead of the 8910 tach adaptor I will need the 8920.....a little more expensive than the 8910. I wonder if a 280 tach will work without an adaptor??? Anyone know? Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/#findComment-245305 Share on other sites More sharing options...
beezee Posted April 25, 2008 Share #5 Posted April 25, 2008 My tach would not work until I installed the 8920 tach adapter for electronic ignition Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/#findComment-245351 Share on other sites More sharing options...
MikeyZee Posted April 28, 2008 Author Share #6 Posted April 28, 2008 Well...I'm still a little confused about this. I had the e12-80 working and the tach working just fine.Now the tach wire (black/white) that was hooked to the + Coil is now hooked to the Red switched power for the MSD box. Now.....couldn't I just find another switched 12v to power the MSD and hook that black/white back up to the coil + and get my tach back? Link to comment https://www.classiczcars.com/topic/27848-mds-280zx-dizzy-magnetic-pickup-tach/#findComment-245564 Share on other sites More sharing options...
Yarb
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