how are carb'd cars rev limited?

[lolcantturn]

I know our cars have an electronic rev limit, but how are carb'd cars rev limited? I always pondered

[VinniE30]

They aren't.
But I think there's some aftermarket alternatives that will do it.

[slammin.e28]

Then engine will let you know when you rev it to high.

Don't they use something in the distributor?

[randomsv650]

some form of wodden block under the gas pedal

[Click]

Assuming the timing is also mechanical...

[LJ851]

Lots of carbed vehicles are r3vlimited.

The common German approach was an ignition rotor with a spring loaded, weighted contact on it that centrifugal force would move and eventually touch another contact and short the spark. They are available in different rpm settings.


EDIT: As shown above.

[FunfGan]

Wondered this myself, scared I'm gonna break my engine ahaha.

[BlackbirdM3]

Most don't have a rev limiter. They let you know when they are ready to call it quits however. Some people install MSD/Crane/ you name it boxes with adjustable rev limiters in them. Its not a hard limiter like what EFI has, its a soft limiter that you can blow through if you keep your foot in it. I had an MSD on the Datsun when I still ran points, but it didn't work with the magnetic trigger distributor that I installed. The MSD then when to the Alfa GTV and lived there till it got totaled last year. I have a Crane set up that works on the Datsun, but leaves a hole open in the side of the distributor that I don't want to leave open so I have never installed it.

Will

[euro2fast4u]

http://www.youtube.com/watch?v=vooX83vEZy8

[euro2fast4u]

http://www.youtube.com/watch?v=UNfyBqrAaPk

[Wh33lhop]

Valve float.

[euro2fast4u]

bahahaha

[Roysneon]

Valve float.

:giggle:

[McGyver]

Valve float.

beat me to it

[future rs]

speaking of rev limiters. who named the site and what meaning does it have?