Guest CS_280ZX Posted April 26, 2003 Share Posted April 26, 2003 Hi all, i am asking to see if anyone has made some small tweaks on a 1979 L28 series ( stock ) engine that has increased either fuel economy or power. anything at all, pref without spending any money as such. Cheers. Carl. Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted April 26, 2003 Share Posted April 26, 2003 Without spending any money? Speed costs money, and usually economy does too. I would say a tuneup with good plugs and wires, along with a good cleaning of all your electrical connections would be money and effort well spent. Quote Link to comment Share on other sites More sharing options...
Guest Aaron Posted April 28, 2003 Share Posted April 28, 2003 Yeah, what SleeperZ said, but don't use platnium plugs on the L motor. I have never had good luck with them on a Japanese engine. Don't forget the cap and rotor button also. Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted April 30, 2003 Share Posted April 30, 2003 I use Bosch platinum dual electrode plugs on mine and they work great. Of course they are for a 98 M3 BMW, but the get the job done, and are easy to index. Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 30, 2003 Share Posted April 30, 2003 Now thats a nearly free mod, spark plug indexing. I'm happy with Autolite plugs myself, non-plat. Quote Link to comment Share on other sites More sharing options...
Lockjaw Posted April 30, 2003 Share Posted April 30, 2003 All you need to index are some one those little spacer washers, and a sharpie. With the dual electrode plugs, it is easy as pie. FWIW, I used to use the NGK racing plug for the 300ZXTT, and it did not run well in my car. My "buddy" who owns a shop sold me a set of 6 copper bosch dual electrode plugs, and that fixed the surging I got with the NGK's, but when I went to replace them I found out my "buddy" did not know what he was doing, the heat range was a 2, and stock is a 7. Higher numbers equate to a colder plug. So I had my parts guy look up a heat range 7 dual electrode, and came up with the M3 plug, and it works great. I have run in excess of 20 psi with it at its preset gap, and a stock 300ZX coil with no misfires. I use Jacob's plug wires. Quote Link to comment Share on other sites More sharing options...
Mudge Posted April 30, 2003 Share Posted April 30, 2003 Wow, cold plug on a turbo - yeah that sounds iffy. Quote Link to comment Share on other sites More sharing options...
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