Quote:
Originally Posted by Browni
Not bad, If I see well the exhaust port is still the original in timing and wideness too so the total port area is quite small, and you enlarge the outlet to 34 mm, don't you think it's too big for that little port?
In my opinion it will be better if you widen the exhaust port to 45-48 mm, so you will have torque too.
The other think is the 28 mm carb vs. standard exhaust.. I hope you have the exhaust without catalyst.
Even those BGM needles are very tapered, but I hope you can adjust the carb. I did some 180 cc tuned runner engines, and they need a quite thick and not very steep needle.
It will be a nice and very usable street bike..
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Yup, exhaust port is still original. I know everything you are talking about, and I'll port the exhaust but first I wanna run the bike for a while to see the performance so I can feel the diference. No dynos here
I've measured port timing and it's 170/120, I thought of 185/125 with, an exhaust port 70% of the bore diameter. Still have to run some calculations about that. What do you think?
Exhaust is without the catalyst.
Have you tried those BGM needles with a 28mm OKO, I know I would probably need a very thick needle, which one do you use? They have some strange needle codes, not same as keihin, so keihin needle chart is useless.
Thanks for the nice comments guys
Few more pics:
