Browni said:
"many different head"
Did you only trying?? Why don't you design it well, so you don't have any surprise..
You can even simulate exhausts before making them needlessly! You can save time and money!
"exaust with booster on scooter can't work well"
?????
Please explain to me?
i don't understand what you tell me...
at the moment i have tryed:
4 different head, different cr and emisferical camber ecc ecc
2 different valve, with a lot of different reed and many different internal insert.
6 different exaust, polini 5,6,7 malossi team 03 and 04 and finally the homemade that i have now on my scoot.
a lot of carter soluctions, different primary ratio, profile ecc ecc
on my dyno evo original do 17,5 cv... now my evo do about 22cv...
scooter isn't a bike for Gp... the exaust exit is small and there are the two "prisoners" (one by side) who limit the width of the culvert to the inside.
the booster cannot extend correctly in width, and do not work correctly on a cylinder for scooter.
the "double exaust" is the only solution for a scooter speed cylinder.
the 2fast has ""double exaust"" + booster, is all an other thing!!!
here we are comparing a cylinder with ""double exaust"" to a cylinder with exaust + booster!
ps: ciao roost, a te piace il nuovo evo?? secondo me è proprio una buffonata...