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skullandbones

Engine Blog: First 302 experience - To Tune or Not To Tune That is the Question.

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I've put about 5 minutes of run time on the engine now. It was cut short due to a minor coolant leak in the rear of the intake and for some reason the rad fans didn't activate at temp. Well, you have to install the relays but in my defense the relay housing look very much like the relays so I thought they were there (wired some time ago). Didn't work after adding relays. I had other wiring issues but straightened it all out. So I finally got to do a sustained run. Have a look: [url]http://youtu.be/tY8BKe7ko1Y[/url] . It's such a relief to here the SBF running. Compared to my "carb" build in the past, this was much more complicated. The room for error is much greater especially in the wiring and sensor part of the engine build. I think you become a lot more confident after one of these EFI projects is under your belt. At least, that is my feeling. Tomorrow I'm going back for another session and start on the basic timing to get it tweeked to where it sounds just right. I have had suggestions from several sources to add some monitoring devices to monitor fuel pressure and A/F ratio. Without a tuner with a wide band controller, this is probably the best way to stay "safe" with the factory EEC-IV. Without some idea of AFR you can run too lean which can result in engine damage. I'm not sure I would be able to detect pinging in this engine if it was happening. I can't hear myself think when it's running. Of course, that's not really a complaint. It's just hard to diagnose what's going on by the "seat of your pants" approach with one of these little beasts. Well, I suppose if I can get the basic timing in the 10 to 12 degree area and it still runs well, that will be a good start. Who knows it may be there already. Tomorrow it goes under the timing light for verification. I rigged upt the cold air tubes and filter just to have it in place for today. It won't really stick through the hood like on the video. I think I can route it so it will go thru the F panel on the passenger side and just clear the tire. The air should be good out there. Anything to make the MAF-C happy!!! WEK:cool::cool:

Updated 04-06-2012 at 02:39 PM by skullandbones (error on youtube website)

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  1. skullandbones's Avatar
    Thanks a lot Karen, WEK.
    Updated 04-06-2012 at 06:45 PM by skullandbones (corrected in blog)
  2. vnmsss's Avatar
    skullandbones....Look for the yellow pencil icon next to the blog title.

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