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| How much vacuum advance? https://slantsix.org/forum/viewtopic.php?t=2992 |
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| Author: | Dave Reibs [ Thu Dec 13, 2001 6:24 pm ] |
| Post subject: | How much vacuum advance? |
Hi Doug How much advance should the 225 w/ electronic ignition have? If I have the advance plugged at the carb and timing set to 10 degrees, the max advance I will get is 15 degrees and the car will run OK. If I have the advance connected and timing set to 10 degrees, the advance will jump to 25+ degrees by 1100 RPM. At this point the engine will be missing badly. Is the what I should be seeing? Thank you. Dave davejason@aol.com |
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| Author: | Doc [ Fri Dec 14, 2001 8:48 am ] |
| Post subject: | Re: How much vacuum advance? |
Quote:
: How much advance should the 225 w/ electronic : ignition have? If I have the advance plugged : at the carb and timing set to 10 degrees, : the max advance I will get is 15 degrees and : the car will run OK. If I have the advance : connected and timing set to 10 degrees, the : advance will jump to 25+ degrees by 1100 : RPM. At this point the engine will be : missing badly. Is the what I should be : seeing? Many of the electronic distributors are set-up as you have, lots of vacuum advance and not much mechanical. I would think the missing would be on an out of gear rev-up and not as much under driving loads. (vacuum advance acts as a retard under load) Degree your distributor for the best over-all performance for your set-up. You can change the vacuum advance pod if needed, there is a number stamped on the arm which gives the amount of advance, multiply by 2 for crankshaft degrees. Did you read-up on the distributor recurve instruction? DD Distributor Degreeing Info. |
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