No R1's in AMA ???

[motard11]

  I wonder what the deal is ? How come no one races the R1 in AMA Superbike? Do you think its cuz Yam doesnt back em or What??? There R6's seem to kick a$$ Anybody explain this ??? ???

[Eddie#200]

 I wonder what the deal is ? How come no one races the R1 in AMA Superbike? Do you think its cuz Yam doesnt back em or What??? There R6's seem to kick a$$ Anybody explain this ??? ???

I understand they don't do that well. ::)

[hdpromos]

My guess is that they have an all new model coming out next year. And saw no reason in spending more time on the old one, that is clearly out classed by the Suzuki.

HD

[harb990]

I think there are a couple of privateers running them.

[hdpromos]

But no factory R-1's.

HD

[oh344ccs]

Yamaha made a statement back when the superbike class rules were changed.  It stated something along the lines of "we do not believe that there is sufficiant time to prepare a new bike properly with the new rules for the class being changed so soon to the begining of the season" Or something to that effect.  Yamaha does have a fat contingency program though, just ask Larry Denning, I heard he made like 8K last week at a wera regional. :o  I thought that in preseason testing Jamie Hacking was asked about the R1 in Superbike and he believed that it would be a competative base, for Superbike racing.

[Lowe119]

Is it my understanding that they run some sort of restrictor on the 1000cc's???
If so, why?

[motard11]

 I know stock Suzis have restrictors not giveing you full power till 4th gear, this is to keep joe street from flipping over backwards so quickly. Enter the Ivans de-restrictor it tells the computor you are always in 4th so you have full throttle (I think thats full timeing) well you get the idea it plugs in and hold od mama were goin up ;) Motard11                    Its to bad I would like to have seen Yam throw  the factory R1's into this years mix ???

[GAMEDIC]

the only thing i found on my 1000 was that it will not let me redline 6th gear....had nothing to do with any gear before then and i got plenty of power up to and past 4th...

[OmniGLH]

I'm working on a device that fixes that.  The GSX-R (all current-gen 600s, 750s and 1000s) has a timing retard in 1st-3rd gears... why, I don't know.  But the PCM has a gear sensor to tell it what gear it's in.  This same sensor/circuit is used to limit the top speed on bikes that are top-speed limited (i.e. the Hayabusa.)  I don't know if the GSX-R1000 is top-speed limited or not.  But in 6th gear, the PCM lowers the rev limit so the bike will not pull to redline.  My device fools the PCM into thinking the bike is in 5th gear - thereby eliminating the top speed limiter and the timing retard.

I have this device on my GSX-R750 and I *do* notice a difference around town, in the low and mid revs.  The timing retard does NOT come into effect in the upper revs.  So for a race bike, the timing retard eliminator device is kind of pointless, since you're never in the lower revs where the timing retard takes place.  As for the 1000s, if the DO have a top-speed limiter... then this device WILL help.  It's really only beneficial on a street bike.

I should have the first batch ready for sale in the next week or two... just waiting for the shipment of connectors to get here.  If you're interested in one, shoot me an email - jim@kingpinracing.com.  I haven't worked out pricing yet, but I'm thinking in the $30 range.

[GAMEDIC]

the 1000 does have a top limit....same as the busa... 186mph....thats all it till go to..and that is spedo speed... and there is already a device that fixes that like you were talking about...some guy showed me one he had on his 1000 that set the computer a signal that tricked it into thinking the bike was still in 5th gear

[Litespeed]

IT's called a TRE mod and you can accomplish it by cutting two wires and then soldering a resistor across them.  Total investment about 30 cents and a couple minutes of work...