i am thinking about putting an airbox on the R1 TB's but dont know much about making them so i have a couple of questions

1) is it a case of the bigger the better or is there a specific volume they should be?

2) how far should the airbox casing be from the end of the trumpets

3) it it better to have an airbox made so that it goes over my current pipercross filter ot is it better to have a pipe running down into the nose and have a filter on the end

4) what size into hole into the airbox, 80 or 100mm?

anything else worth mentioning that i have missed?

cheers

alex - You should read the book by G. Bell - Four Stroke Performance Tuning". It has answers to all of these questions and more. I have a copy if you woul dlike to borrow it...?

yes please

i think its bigger is better for the airbox and no less than 75mm feed into it .i made my own and the guy at the tuning place said it was spot on

tcr whats the spec of your airbox, do you have any pictures, spec diagrams etc

quote:

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Originally posted by omega0684
tcr whats the spec of your airbox, do you have any pictures, spec diagrams etc

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I made one out of some old washing machine steel!

Like this:



airbox_2