Is there anyone who has bought or made a variable ignition advancer, like some cars and trucks have, where the higher the rpms go, the more it advances?  not sure how it could be made for a motorcycle, but then again, im not an engineer.  Im sure theres a few guys on here smart enough to do it.

I think you'll find this is done electronically. The centrifugal systems were used with points ignition back in the good old days. (But I stand to be corrected).

yea i know, but since bikes tend be a bit behind car technology i was asking. and my bike is a 97 so no on board computer to tell it to advance.

IIRC our bike has a set advance amount up to a certain rpm, then changes to another amount.  the benefits wouldn't be enough to be worth the hassle, due to the way our ignition pickup system is designed

You could always convert the whole thing over to a dynatec setup and have complete control over your ignition curve digitally.  I'm pretty sure that would be a giant waste of money, though.   The horsepower gain probably wouldn't be worth the dyno time required to tune it, let alone the parts required to make it tunable.  

Having said all that, the vance and hines rotor was the third best mod I ever did and will increase horsepower on the cheap.  Someone backed that up with real dyno numbers too.  Have you done the V&H or the wiki advancer mod yet?

That's my 2 cents!

Quote from: gregvhen on December 02, 2009, 04:35:48 PM
yea i know, but since bikes tend be a bit behind car technology i was asking. and my bike is a 97 so no on board computer to tell it to advance.

WOW,
Bike tech is way ahead of car tech
GP tech trickles to bikes is months vs yrs for cars

you just own a turd that tech ignores
(so do I )

F1 car tech is way ahead of MotoGP. Or atleast it was till the 4 stroke GP bikes came along.
Of course a street bike is closer to a GP bike than a car is to a F1 car.
Cool.
Buddha.

i guess i shouldnt have said car tech was more advandced (or how ever i put it) but instead i meant, the same technology in a car, (like centrifugal advanced ignition) would be much less cost effective in a motorcycle.  And also i meant moto tech is behind in the sense that fuel injection hit average commuter cars long before it hit average commuter bikes, as well as ABS brakes, things that yea bikes have now, but cars have had em for quite some time now.

Emissions and safety hits cars first. Performance hits bikes first. In both cases I mean sold for street, average cars and bikes.

So sport bikes spin 16000 rpms and go 100 in first gear but just got cats and FI and for safety you have the Human Mark 1 eyeball and reflexes.

Cars had cats and airbags long ago and very few are, well, sporty at all. And airbags. The new Fiesta has like a dozen in front. Thigh bags. Ankle bags.