better brakes

Randy Grein randygrein at
Fri Sep 26 05:38:29 PDT 2008

Supersport isn't unlimited mods - in WMRRA it's about equivalent to  
AMA supersport. In the engine you're allowed a pipe, 3 angle valve  
job, cam timing, .5 mm overbore and (because we were told it became  
impossible to police) compression change through cylinder/head  
decking. The modified classes are generally making another 10-15 hp  
with front end and wheel swaps. The same people on the same bikes  
generally dominate 650 SS twins, lightweight superbike and  
middleweight GP twins.

Randy Grein, WMRRA #41

On Sep 26, 2008, at 12:25 AM, Jo Rhett wrote:

> On Sep 25, 2008, at 11:06 PM, Randy Grein wrote:
>> Heh. Get a SS engine. With race gas we're seeing an easy 15 mph  
>> over the bone stock bikes at Pacific and Spokane. I'm pulling 16/43  
>> gearing which is about right - peak power on my bike is about 9500  
>> and there's a fair power drop by redline. Of course, WMRRA does  
>> allow unlimited compression mods...
> I hate unlimited mods classes.  Frankly, I'd rather just race the  
> superstock class on SVs, but nobody is there to chase really, unless  
> Zoran is handing me my ass on his 500cc bike (they usually grid in  
> the same start)
> I'm actually curious about that.  The more I learn to ride the SVs  
> the more I learn just how tragically short the power band is on  
> these things.  Miller full track was 30-something shifts per lap, no  
> kidding.  Getting on the GSXR1000 and finding that 4k rpm was as  
> good as 10k on the SV made me seriously jealous.  Shift?  Ah, why  
> bother.
> -- 
> Jo Rhett /  velociRaptor Racing
> #553 WERA / AFM

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