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Old 01-25-2006, 01:34 PM   #11
Tigercub
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Default Re: XBRR Not Legal for FX?

We want Buell in the race and we don't want anyone spoiling the fun.



What about a class where the bikes are put on a dyno as part of tech inspection to verify that maximum torque is the same - a torque spec. Let the manufacturers decide how that torque gets to the rear wheel.
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Old 01-25-2006, 02:34 PM   #12
Woody650
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Default Re: XBRR Not Legal for FX?

All this hubub over what Buell put in a press release?



If the engine and frame are production based the bike is likely FX legal



You can't ride an Erion Racing FX bike from the starting grid to the local Starbucks, either.



Seems to me Buell is doing the FX conversion in the factory, whereas Honda used to do it at the American Honda race shop and now does it in Erion's shop. But the end result is the same: a "competition only" bike based upon a production engine and frame.
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Old 01-25-2006, 02:44 PM   #13
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Default Re: XBRR Not Legal for FX?

After delving a bit into the FX rules, Erion does have a somewhat credible *****--at least by the written word.



The problem is that the Buell press release and marketing strategy got them into a bit of a tangle.



I think it's pretty clear that this bike is largely based on the XB9/12 bikes, but what they should have done was called it the pseudo-factory-prepared-FX race-kitted XB-12 (or 9) or something. They probably would have avoided this whole mess.



Now, you can certainly argue that the unrestricted nature of the rules that applies to air-cooled twins is unfair, but that's another discussion.



I'd like to see them race and it seems the AMA will allow it.
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Old 01-25-2006, 02:50 PM   #14
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Default Re: XBRR Not Legal for FX?

Yep you Buell fans are right? The rules should be "fair". OK that means fair for everyone... Take off the restrictions on inline 4s and liquid Twins then.. The article said the rules for aircooled Twins were the most liberal. To be fair to everyone liberalize the rules. Whoops that doesn't make sense because then Haybusas and Ducati 999s would be racing agains the poor Buell...



Another rule made to favor Harley. The only fair way is CC.....



AMA should have two classes period. 600 cc and 1000cc. Perhaps an unlimited class over 1000cc where Buells could be smoked by Busas and ZX-14s...
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Old 01-25-2006, 02:54 PM   #15
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Default Re: XBRR Not Legal for FX?

Yep Since the AMA official probably exchanges christmas cards with the Buellers.. Good catch Buz..;}
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Old 01-25-2006, 02:55 PM   #16
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Default Re: XBRR Not Legal for FX?

Excellent points pbad..
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Old 01-25-2006, 03:50 PM   #17
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Default Re: XBRR Not Legal for FX?

In this era of peak oil maybe it's time for a new racing rule...



Based on a production bike, any engine size or configuration, a reasonable minimum weight (for safety and cost control) and no more than 8 gallons of 93 octane gas to finish the Daytona 200.



Of course that would give air cooled pushrod v-twins like the Buells an unfair advantage because, ummm... their engines are so inefficient?





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Old 01-25-2006, 04:53 PM   #18
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Default Dynamic displacement is equal

What is ignorant, I won't call it retarded cause that might offend the mentally challenged, no it is ignorant to judge engine performance solely on displacement.



How about we let 600cc 2-strokes in on the class then?



There is a measure of engine capability know as dynamic displacement which equals displacement times rev-limit in rpm.



For the new R6 we have...

0.6L*17,500rpm=10,500L/min



For the XBRR we have...

1.34L*8,500rpm=11,390L/min



Then consider that the Buell mill has half the number of cylinders and throttle bodies, one fourth the number of valves, and is air-cooled.



Pretty darn even.



Afraid of some American competition?



How can it possibly be bad to have more diversity in racing? I sure hope Ducati fields a 749R in the series this year. They were darn competitive when they did so in 2004 for a limited number of races.



Ignorance is sucky. Don't be sucky.
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Old 01-25-2006, 04:57 PM   #19
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Default Re: XBRR Not Legal for FX?

Right, all that matters to the IL4 cheerleaders is displacement. Until someone comes out with a V5 street bike that is. Then they'll whine and cry about it's advantage in performance and want rules to help equalize the different engine configurations.



There is a measure of engine capability know as dynamic displacement which equals displacement times rev-limit in rpm.



For the new R6 we have...

0.6L*17,500rpm=10,500L/min



For the XBRR we have...

1.34L*8,500rpm=11,390L/min



Then consider that the Buell mill has half the number of cylinders and throttle bodies, one fourth the number of valves, and is air-cooled.



Pretty darn even.



Afraid of some American competition?



How can it possibly be bad to have more diversity in racing? I sure hope Ducati fields a 749R in the series this year. They were darn competitive when they did so in 2004 for a limited number of races.



Ignorance is sucky. Don't be sucky.
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Old 01-25-2006, 05:00 PM   #20
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Default Race a Busa or ZX14?

No Busa or ZX14 is going to be able to compete on any kind of twisty race track with a Buell XBRR. That'd be like bringing a funny care to a road race. So have at it.
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