I agree with the way the 300 rides. It does have bags of mid-range, but to make one rev (and therefore feel like a buzzy 250, which I personally think is the point of owning a buzzy 250), they lose that mid-range. Consequently, I don't see the point! They still won't make the big power you would normally expect from a big-bore.
We have yet to run any 300 that can out-perform the best 250, or even match it, and it's not for the want of trying. The best 300 we have run was actually tuned by TYGA, complete with VHM heads, PJ38s etc., and could be considered for all intents and purposes, an "F3" 300. It still barely scraped by 70hp on the same dyno that the better 250s regularly make mid~high 60's on, and the best makes 75hp on. It does however, as mentioned above, make a chunk more mid-range than a 250, as you would hope (and expect) it to.
I do think Matt is getting ever closer to nailing the unquestionable reliability issues, and this may also release horsepower at the top. I have a reputation as a 300 hater (particularly by Neal), but quite the contrary! I actually pressured Matt 12 years ago to complete the project, and encouraged StephenRC45 for a long time (and through 7~8 barrels, and even more seizures!) to try and nail some of the problems. Personally, while I will never choose one over a good 250, I do want the kit to be reliable and successful, if for no other reason that the sheer amount of time and effort Matt has put into it!
In my opinion, a 300 should be taken for what we've shown countless times it is. It's a lazy 250! They make on average about 65~66hp, and a chunk of mid-range. They turn a 250 into a lazy 4-stroke. You could well be faster on-track with one, because you have more margin for error with more mid-range... a missed or wrong gear is not so critical, but the bike won't ultimately be any faster with 66-300-hp than it will with 66-250-hp!
There certainly IS a substitute for cc's... it's called a well tuned and set up 250! It will be more reliable too!
The benefits? You get new barrels with Honda plating.
Remember too, the 300 kit will not work with stock exhausts. You will need to add race pipes to the cost of any build. That's approximately £1200 + £500 (for new pipes). Add another couple hundred Pounds/Dollars for a twin EGT setup as Neal is recommending, and you have just spent best part of £2000!
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Andy.
NSR-WORLD.COM
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