ChrisDatsunz Posted August 22, 2018 Share Posted August 22, 2018 I have a 72 240z I've had about 10 years. The interior was swapped with a 77 and ecu and ignition is 77 except for a 79 NA distributor on an 81 Turbo motor. A couple years ago the e12-80 died and I ordered a new dist. from rockauto when they were cheap. The dist. didn't work and I kept second guessing myself. Got a new $25 china e12-80 a few weeks ago, put it on my old dist. and it fired right up. Drained the fuel and put in new fuel and oil change. Running a bit rich, will try and take it out tonight. What would you time this at 10 or 20 btdc or ??? Thanks Chris Quote Link to comment Share on other sites More sharing options...
NewZed Posted August 22, 2018 Share Posted August 22, 2018 (edited) Does the turbo motor actually have the turbo? Or is it just a turbo motor running NA? Probably best to know what full mechanical advance is and set initial based on that. If you have 20 degrees of advance and set initial at 20 you'll be at 40 total. Which is too much. You can look at the weights or just rev the engine with the vacuum advance disconnected and watch timing. Edited August 22, 2018 by NewZed Quote Link to comment Share on other sites More sharing options...
ChrisDatsunz Posted August 22, 2018 Author Share Posted August 22, 2018 It has the stock turbo. I'll check when I get home. thanks Quote Link to comment Share on other sites More sharing options...
NewZed Posted August 22, 2018 Share Posted August 22, 2018 Then it's one of those "make it work" setups, using NA parts to run a turbo motor. No real Nissan guidance. Beware of detonation. Quote Link to comment Share on other sites More sharing options...
madkaw Posted August 22, 2018 Share Posted August 22, 2018 Be careful of the vacuum advance - could cause too much timing Quote Link to comment Share on other sites More sharing options...
ChrisDatsunz Posted August 24, 2018 Author Share Posted August 24, 2018 Thanks to both of you for the replies. And really thanks madkaw, that was it, disconnected the vacuum advance and night and day. 10 degrees so far seems good. Will road test next week. Thanks again guys. ! Quote Link to comment Share on other sites More sharing options...
ChrisDatsunz Posted September 11, 2018 Author Share Posted September 11, 2018 Well, figured it out. On a while Im at it moment. My car had the 79 dist. and coil and the 77 ballast resistor. While I was trying to fix it I saw all the "add 79 dizzy etc. and they all said remove ballast, go full 12v. So I did. When I put another e12-80 on and it fired up, for a split second it sounded good, then backfiring, smoke, etc. Couldn't figure it out. Then I checked the voltage at the coil , not running 11.88 when runnnig 13.8v, oops too many volts. Put resistor back on and back in business. Quote Link to comment Share on other sites More sharing options...
NewZed Posted September 12, 2018 Share Posted September 12, 2018 Your cause and effect make no sense but good luck with it. More likely a loose wire or a failing part got jiggled when you were working on it so be ready. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.