trippintl0 Posted February 20, 2007 Share Posted February 20, 2007 Well I finally got around to installing my 300zx coil in my 280zx (running MSnS-extra, cheap autozone HEI ign module, optical dizzy). I haven't really had any time to mess with my car since I work full time and go to school full time, plus it's my daily driver, so all repairs have to be finished the same day! Anyways, I noticed that when we painted the engine bay, we forgot to clean the metal where the coil grounds to the engine compartment! I don't know how it even was running. I also found like 3-4 ground wires that were so dirty, and 2 that were not even connected. (We were really sloppy trying to get this thing running, first car project ever) So, the point is, I used my die grinder to clean all the metal nice and bare, reinstalled everything with dielectric grease, new 300zx coil (actually came from early infiniti m30, had the vg30 i think). The car runs A MILLION times better! It actually freaked me out, because the throttle response increased tenfold. The mid-throttle is so much smoother and more powerful. I imagine I'll get better gas mileage as well. (i've never got much better than 20 mpg, but since I always drive the car so hard, i figured that was why) Also for a while I had a problem with the car missing above ~4800 rpms. I sort of solved it by making the spark plug gap smaller, but now it's even better; it is smooth all the way up to about 5700 (i don't really rev higher b/c it's stock with hydraulic rockers, doesn't make any more power above 5500) In addition (sorry for such a long post!), my radio has always made a buzzing noise, which is now disappeared!! I'm excited. Moral of the story: If you are a beginner like me, don't forget that grounding is very important - don't overlook it. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted February 20, 2007 Share Posted February 20, 2007 nice post... and very true. Quote Link to comment Share on other sites More sharing options...
jnjdragracing Posted February 20, 2007 Share Posted February 20, 2007 This so true, it was a hard lesson I learned many many yarns ago. John Quote Link to comment Share on other sites More sharing options...
roger.svoboda Posted February 28, 2007 Share Posted February 28, 2007 that is why Lucas was named the prince of darkness on early limey cars. insufficient earthings as they say. Quote Link to comment Share on other sites More sharing options...
datman Posted March 1, 2007 Share Posted March 1, 2007 Yeah too true, Ever see a Jag without electrical issues? Lucas also supplied parts for planes!!!! Quote Link to comment Share on other sites More sharing options...
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