rev limiter soft mod....

[benny hedges]

saw this interesting mod for the sp's...

http://www.rc51.org/b2a15.htm

wondering whether the same mod will work on the storm....
anyone done this - or know which wires to bridge?

[seb421]

what does it do mate? take the limiter off or stop it bouncing or what ever you call it when pinned on the limit

[benny hedges]

stop it bouncing or what ever you call it when pinned on the limit

^ that.

best used with a modded spring set imo... but like with mine, it wnts to rev right up there so the limiter is a pain.
you will hit a point where there isnt enough air available for it to rev higher.... im pretty sure the oem rev limit is a bit over cautious.

[tony.mon]

Agreed- the std cams aren't a limit; the airbox and intake flow is.

If you have modified cams you can use a little overrev, but apart from saving you a gearchange on the dragstrip or possibly on a trackday it isn't much use; you want to change into a rev number which will give you torque and horsepower to pull you through another gear, so over-revving and then changing up into the point where you're almost out of revs again doesn't help much.

I'd guess that these motors can reliably over-rev to 1000 more than they normally do, but unless you've done some fairly radical head/airbox/cam work they won't be in a useful power range at that point.

Have a look at the way hp and torque drop off just before the rev limiter on pretty much all dyno charts.....
They just run out of puff. That's why the stage 2 and 3 bikes hang on to peak hp and torque doesn't lose much either. A bit more air and fuel, plus ram-air helps hugely in getting more combustible gasses into the combustion chambers at high revs.

Don't let me stop you trying, though....

[geodude]

For me its

Redline threshold (engine off only)
Press C, release, and press again
Release C when desired RPM is reached

[Griff1977]

Show off!!

[benny hedges]

Show off!!

SHHH dont tell him, but when were on the next op storm we'll reset his limiter to 20k and superglue his throttle open so he can have bent valves to reminisc of the good old firestorm days

[lloydie]

No lets set it to 2k that way we'll be able to keep up !!