A New Beginning.

[Megadan]

Originally Posted by pete

try shorting the header pipe...
on the TTR 5" /125mm shorter gives 1.5hp
with the standard muffer & 2.5 with the GYTR pipe..
lose a bit of bottom end but gain in mid to top...
being a everybodys trail bike they are tuned for a
good bottom to mid range power... pipe and air box opened
up and the TTR really takes off... the Hawk could be simluar..
being a 250 you tend to spend most of the time in
mid range revs and up... 3000 plus...

Dyno figgers...
http://ttr250.activeboard.com/t64301...ore-and-after/


..

Depending on my results with the head and different carb setups, the exhaust would be my next place to go for a little experimenting. My goal is to try and gain some top end without sacrificing much down low, but if I can keep the power strong above 3000rpm, then that is all that matters to me.