Who Makes a 6 volt Rev Limiter?

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Conrad Carter
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Who Makes a 6 volt Rev Limiter?

#1 Post by Conrad Carter » Tue Jul 23, 2019 8:10 pm

As title says, does anyone make a 6 volt rev limiter?
Conrad

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Michael Moss
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Re: Who Makes a 6 volt Rev Limiter?

#2 Post by Michael Moss » Tue Jul 23, 2019 10:13 pm

Conrad I don't know anyone that makes a 6v rev limiter. Have you thought about using a rev limiting distributor rotor?

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Re: Who Makes a 6 volt Rev Limiter?

#3 Post by Conrad Carter » Wed Jul 24, 2019 2:15 pm

Never heard of that. Please enlighten me!

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David Jones
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Re: Who Makes a 6 volt Rev Limiter?

#4 Post by David Jones » Wed Jul 24, 2019 2:51 pm

Your problem is in finding a rev limiting rotor for a cast iron distributor. For a 009 it is not a problem, By the way rotors are not voltage dependent.
https://vwparts.aircooled.net/Bosch-RPM ... -rotor.htm
If I had known I would live this long I would have pushed the envelope a little harder.
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Michael Moss
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Re: Who Makes a 6 volt Rev Limiter?

#5 Post by Michael Moss » Wed Jul 24, 2019 6:40 pm

David are you sure the rev limiting rotors won't fit? The link says it fits the Bosch 010, & 019 distributors I'm pretty sure they are cast iron distributors. I put one from a 911 in my 1966 912 years ago and it had the cast iron distributor. It would be worth measuring the rotor shaft to check for fit. Mike

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Re: Who Makes a 6 volt Rev Limiter?

#6 Post by Conrad Carter » Mon Oct 14, 2019 7:35 pm

Agrees with my experience with 914 engine. Not enough room under distributor cap.

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Harlan Halsey
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Re: Who Makes a 6 volt Rev Limiter?

#7 Post by Harlan Halsey » Tue Oct 15, 2019 4:43 am

If you really want a rev limiter, then you might try adding a small 6v battery in series with the 6v supply. You should check with Petronics or other supplier to see if that will work. (The current draw of a rev limiter is small and the trigger voltage from the coil is much higher.)

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Juha Vane
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Re: Who Makes a 6 volt Rev Limiter?

#8 Post by Juha Vane » Wed Oct 16, 2019 2:23 am

Some 123 distributors have a soft rev limiter.
Check 123ignition.nl
I have one in my 6V 356, thanks for the tip, Cliff.
KTF,

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Re: Who Makes a 6 volt Rev Limiter?

#9 Post by Martin Benade » Wed Oct 16, 2019 9:21 am

Harlan, how will that work and at what rpm?

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Re: Who Makes a 6 volt Rev Limiter?

#10 Post by Martin Benade » Fri Nov 01, 2019 7:18 pm

0EB288BB-6344-4C09-B7C0-5B7FC10734D7.jpeg
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I still have one I made in about 72. It worked by transferring the spark 90 degrees, would then miss terribly. It limited to about 2500 rpm. I had fun sneaking it into a couple of my college buddie’s VWs. I can’t believe I still have it.
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Wes Bender
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Re: Who Makes a 6 volt Rev Limiter?

#11 Post by Wes Bender » Sat Nov 02, 2019 5:01 pm

Martin, you were cruel......
Some days it just isn’t worth the hassle of chewing through the restraints......

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Re: Who Makes a 6 volt Rev Limiter?

#12 Post by Martin Benade » Sat Nov 02, 2019 5:05 pm

My motto- cruel but fair. (Stolen from early Monte Python)

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Re: Who Makes a 6 volt Rev Limiter?

#13 Post by Conrad Carter » Sun Dec 01, 2019 7:49 pm

Just heard from 123distributor.....they do not have anything to add the rev-limiting button to a 356 with 914 engine. No distributor cap or distributor. Conrad

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Re: Who Makes a 6 volt Rev Limiter?

#14 Post by Martin Benade » Sun Dec 01, 2019 9:10 pm

I believe their distributor can have a built in electronic version instead of the centrifugal one from years ago.

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Re: Who Makes a 6 volt Rev Limiter?

#15 Post by David Jones » Sun Dec 01, 2019 10:33 pm

Conrad, I just realized that there is a rev limiting rotor for your car when I saw that you are running a 914 engine. Do a search for Porsche 914 rev limiting rotor. Remember rotors are not voltage specific. This only applies to 914 type distributors of course.
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
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