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Post by 75 Super Beetle on Oct 17, 2014 8:49:23 GMT -5
I have a high rpm miss (air cooled1915cc)and was talking a guy that was running a rabbit at martin. He was regapping his plugs closer for the same reason. Anyone ever run into this for the cure. I have gone thru the whole fuel system. Pretty sure it is not there. Looking for ideas.
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clintonddk
1600dp
Posts: 755
Joined: Oct 7, 2008 18:16:45 GMT -5
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Post by clintonddk on Oct 17, 2014 10:21:45 GMT -5
What are you running for an ignition system? What are your plugs gapped at now? What kind of compression are you running?
I had to reduce the gap in my plugs gap due to the boost blowing the spark out, high compression will do the same thing.
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Post by 75 Super Beetle on Oct 17, 2014 16:09:31 GMT -5
Using a MSD distributor and a 6AL box with 10.3 on the compression. Plug gap is .035.
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MadMike
1600dp
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Joined: Oct 30, 2008 10:21:12 GMT -5
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Post by MadMike on Oct 18, 2014 6:24:27 GMT -5
That's a 'Band-aid',, how old are the plug wires? any moisture under the dizzy cap? what Fuel?heat range of plugs?
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clintonddk
1600dp
Posts: 755
Joined: Oct 7, 2008 18:16:45 GMT -5
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Post by clintonddk on Oct 18, 2014 11:41:28 GMT -5
Try .026" that's where I ran mine with that set up.
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vw1s
1600dp
I am Jack's Medulla Oblongata...
Posts: 1,841
Joined: Jun 25, 2008 5:16:14 GMT -5
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Post by vw1s on Oct 18, 2014 11:51:45 GMT -5
Larger main jet, or smaller air corrector...
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vanapplebomb
1600dp
Posts: 869 
Joined: Jan 22, 2013 23:36:55 GMT -5
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Post by vanapplebomb on Oct 18, 2014 14:55:56 GMT -5
Not trying to hijack this thread or anything, but what is a recommended heat range for plugs? 6?
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Post by 75 Super Beetle on Oct 18, 2014 18:41:37 GMT -5
Running autolite 4164 which equal to NGK b6ea. Fuel is 50-50 of 110 race to 89 recreational no ethenl.no moisture in the dizzy. Wires are new MSD and dizzy is 5 years old with very little time used. Using 44 IDF's with 160 main. I'm leaning toward trying 170 and closing the plug gaps. Still looking for idea though. I am going to all recreational fuel which is 89 octane.
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MadMike
1600dp
Posts: 3,277
Joined: Oct 30, 2008 10:21:12 GMT -5
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Post by MadMike on Oct 19, 2014 6:42:16 GMT -5
Sounds like ur covering all the bases  ,try re setting/adjusting the Timing?I tend to run colder plugs for all out racing  |
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,try re setting/adjusting the Timing?I tend to run colder plugs for all out racing 