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Old 03-May-2005, 17:09   #22
fil2 fil2 is offline
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Quote:
Originally posted by ali
Quote:
Originally posted by mw
infact the feeling is that the big bore 583 with correct carbs and set up would beat a 620 on power and torque


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... hence having the big bore 620 option is important as this would (if you wanted to spend the money) allow one to get even ... it's all v close thou' so the extra expence probably wouldn't be worth it unless running v close to winning the championship ...

Right. *rolls up sleeves*.... where do you want me to start????

I will happily pay for ANY 620 to be dyno'd with ANY 675 carbed bike on the same dyno, but you'll have to promise to re-imburse me if there isn't at least 7bhp difference. That's a modest 13% difference.

To give you an idea that has the equivalent effect on power/weight as removing 22kg from the bike!

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the expected power outputs of a sorted big bore 583, standard 620 and big bore 620 are all around 62 -65 bhp
********. Try 51.5, 59 and 62.
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however all this about different dyno figures is also very misleading as each dyno has a different reading to the other ...
but three different dynos delivered bhp figures within 0.5 bhp for three 675 bikes? "Very misleading"????

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for what it is worth i believe changing the rules so quickly as a knee jerk reaction would be wrong ... it's just too soon ...
Couldn't disagree more. Sort it out now or you'll have an entire field of 675ie checkbook racers.

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we need to see how it goes at the next race at the v least before looking at any changes...
No we don't.

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riders also need to look at their riding and not their machines for the fact that they were slower than the bike infront ... alan johnson on a 583 came 5th and 6th.

Andrew produced the ride of the weekend as far as I was concerned. I hardly think this thread has anything to do with rider ability. I'm sure CK & AK are biting their tongues on the whole BB issue. Where would Andrew have ranked with a 680ie???

I had an enormous amount of fun on the weekend, I have huge appreciation for the race committee, but that needs to be reciprocated back to those that have invested a huge portion of their savings/loans/time on getting on to the grid.

Cheers,

ali

Excellent post Ali..........

Phil