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| disstributor springs https://slantsix.org/forum/viewtopic.php?t=3530 |
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| Author: | wolverine [ Sun Apr 28, 2002 7:46 am ] |
| Post subject: | disstributor springs |
at what rpm should i have full mechanical advance on a stock motor with the super six? i mostly shift between 2500 and 3000 rpm's. cruising rpm's in o.d. at 70mph is 2200. -i know this is not very accurate but the only tach is inside the truck. i held the accelerator at 2000 rpm and noted the sound then reved the throttle slow until i had max mech advance(about 24 deg btdc without vac adv hooked up) and by sound i was well under 2000 rpms. i can unhook the vacuum advance and drop to 6 deg btdc and it will still ping at wot and the engine feels sluggish. i'd like to keep it around 10-12 deg btdc, do i need to use two heavy springs.----------------- welcome to my nightmare dodgecrazy@aol.com |
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| Author: | Doctor Dodge (Doug Dutra) [ Sun Apr 28, 2002 11:18 am ] |
| Post subject: | Re: disstributor springs |
Quote:
: at what rpm should i have full mechanical : advance on a stock motor with the super six? : i mostly shift between 2500 and 3000 rpm's. : cruising rpm's in o.d. at 70mph is 2200. : : -i know this is not very accurate but the only : tach is inside the truck. i held the : accelerator at 2000 rpm and noted the sound : then reved the throttle slow until i had max : mech advance(about 24 deg btdc without vac : adv hooked up) and by sound i was well under : 2000 rpms. : : i can unhook the vacuum advance and drop to 6 : deg btdc and it will still ping at wot and : the engine feels sluggish. i'd like to keep : it around 10-12 deg btdc, do i need to use : two heavy springs.----------------- : welcome to my nightmare Sounds like you need a heavy second spring with a shorter end loop. The factory sets the springs up so the light one does all the low RPM work untill the second heaver spring bottoms-out in it's end loop and slows down the mechanical advance for the higher RPMs. Take a look to see how big the loop is on the second spring. DD |
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| Author: | Mike Andreas [ Mon Apr 29, 2002 10:16 pm ] |
| Post subject: | Spring Theory |
Can someone write a description of what the springs do in the distriburtor? What are the choices and what do they do? I'd love to know. Mike MAndreas@aol.com |
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