pvl flywheel for a flathead???
- Thread starter bikerboybenny8
- Start date
- Tags flathead flywheel pvl
I have one made by ARC
Bought it from Nic Woods
ARC Billet Flywheel For PVL Ignition - Nic Woods Racing
Bought it from Nic Woods
ARC Billet Flywheel For PVL Ignition - Nic Woods Racing
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PVL ignition is digital, not analog. Magneto ignition is analog.
Analog or Magneto ignition will retard spark at high RPMs, that is why timing is advanced at idle, so that at high RPMs the spark will not be retarded.
PVL or digital ignition will not retard at high RPMs so the spark advance at idle and at high RPM operation is exactly the same.
Also PVL will give a rev limiter where magneto does not. Magneto spark at the high RPMs is also inconsistent, at least compared to PVL.
Here is a graph that shows it better than I am probably explaining it. lol
PVLTIMINGCURVE
Analog or Magneto ignition will retard spark at high RPMs, that is why timing is advanced at idle, so that at high RPMs the spark will not be retarded.
PVL or digital ignition will not retard at high RPMs so the spark advance at idle and at high RPM operation is exactly the same.
Also PVL will give a rev limiter where magneto does not. Magneto spark at the high RPMs is also inconsistent, at least compared to PVL.
Here is a graph that shows it better than I am probably explaining it. lol
PVLTIMINGCURVE
Ouch!
I prefer to call it "financially committed to winning" but whatever you guys have to tell yourselves. lol
The PVL ignition is very expensive and not suitable for 99.9% of the minibikes out there. I happen to own one of the .1% of bikes that could take advantage of it, and if it weren't for the rev limiter feature of the PVL, I would run a regular magneto.
Say what you want about expensive parts, but I like to protect mine. Spending several hundred dollars to protect several thousand dollars worth of parts doesn't sound crazy to me. In fact it sounds like sound reasoning.
Put it this way: the last time I over-revved my engine, it cost me more to fix than the PVL costs. Am I missing something here?
I prefer to call it "financially committed to winning" but whatever you guys have to tell yourselves. lol
The PVL ignition is very expensive and not suitable for 99.9% of the minibikes out there. I happen to own one of the .1% of bikes that could take advantage of it, and if it weren't for the rev limiter feature of the PVL, I would run a regular magneto.
Say what you want about expensive parts, but I like to protect mine. Spending several hundred dollars to protect several thousand dollars worth of parts doesn't sound crazy to me. In fact it sounds like sound reasoning.
Put it this way: the last time I over-revved my engine, it cost me more to fix than the PVL costs. Am I missing something here?
Would the PVL ignition have started chopping spark at a predetermined setting to prevent the 12K surge? As an aside, even if you're set 9K rev limit, going from max torque at 8K to no-load max rev of 9K (just a scenario here) would be catastrophic as well.
I don't even rev engines without a clutch on them, much less run them with no load at governed speeds.
I don't even rev engines without a clutch on them, much less run them with no load at governed speeds.
ut:Sorry valves touched head
My bad was rushing out the door and typing at same time, I edited the original post.
I don't rev these either with no load, I was making a run at the time when the keyway backed out the motor over spun. Happened about half track, as simple as that. Same as would probably happen if a chain broke maybe?
My bad was rushing out the door and typing at same time, I edited the original post.
I don't rev these either with no load, I was making a run at the time when the keyway backed out the motor over spun. Happened about half track, as simple as that. Same as would probably happen if a chain broke maybe?
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