It runs !!!!! mickey mouse engineering prevails :), Mallory Dizzy AND D-Jet working together |
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It runs !!!!! mickey mouse engineering prevails :), Mallory Dizzy AND D-Jet working together |
Mueller |
Jan 22 2005, 08:55 PM
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#1
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
Background:
For the stock D-Jet, the ECU gets the signal to fire the injectors from a set of mechanical breaker points inside the base of the distributor. There is nothing wrong with the factory method except for the fact that if you want to run the D-Jet injection, you have to keep the factory distributor...not anymore (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) I have successfully been able to electronicly trigger the ECU from a pair of optical sensors inside of the billet Mallory distributor....so far I have only put a few miles onto the car with this setup and I don't know how it'll work when the temperature is much higher (currently it is 45° outside.....) it's ugly right now, but give me some time to clean it up... (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) (IMG:http://www.914world.com/bbs2/uploads/post-2-1106100569.jpg) So for my ignition, I have the Mallory distributor, accel coil and new 8.5mm plug wires....starts right up and idles fine, but I might install a CDI box anyways... |
Mueller |
Jan 23 2005, 04:22 PM
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#2
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
currently I just threw the wheel in the dizzy.....I know with the stock unit there is a "slight" relationship of the timing, I say slight, cause the fuel injects right before the intake valve opens on 1 side, however on the opposite bank, the fuel is injected at the intake valve while valve is closed (exhaust stroke I think) this happens on both banks...so, 2 cylinders get "fresh" fuel, while 2 valves always get a shower until the valve opens....with the L-Jet, all 4 injectors spray every time there is an ignition event I honestly do not think there would be any measureable differance if I did index the new triggers to match the trigger timing of the stock dizzy since the ignition advances (as does the L-Jet) with my setup the injectors advance also, with the stock D-jet, the injectors are always fixed relative to crankangle I can play with the staging, but unless the car is on a dyno, I wouldn't be able to tell the difference and even on a dyno, I doubt we could see it as well |
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