Nah Andy your'e cool anyway !
I would like to make some more comments , While Andy and Steve are very good with NSR'S . Building a motor to the book is what they have proven . Great mechanics but maybe when it comes to the design and working out of things 300 related need more info .
When i became interested in the 300 i compared the 300 to RS barrels , the 300 came out tops . There are many spare barrels and heads for sale compared to RS parts and my conversion was cheaper than the RS route .
When we did our first attempt at the 300 it was with the help of a clever man , many people ask him for advice and use his software when building race motors .
My first dyno run as a comparison reflected what i felt when riding the bike . It was stronger in the midrange and peaked at a similer rpm to my 250 but with a bit more hp . You can tune the bike to perform how you would like .
If you want more on top with a kick in the band it can be done .
Forget about hp figures - look at the graph .
We have learn't more now compared to when the guys first started with the 300 . A process that could have been speeded up IMO .
You can't use the F3 to compare against as it is out of reach for most people but a 300 is within grasp of a few more .
A SP 250 can't match a R 300 . The only problem with the 300 is that it has a bad rep from seizing - something that is very closely linked to the owner and "bad" preperation IMO .
I have seized - but it was hole behind the powervalve shaft pushing pressure into the system and blowing water pipes ( 2nd hand barrels ) .
For me , the nsr300 will allways win when compared to a nsr250 !
I am open to discussion too .