not a motercross rider but looking for information about motercross tuning

[charliec]

hi there, like the title says i am not a motercross man (though i like them just dont have the money for them )

anyway ill get to the piont
i will be soon getting an aprillia RS barrell (wich wont be going on an aprillia) to do some porting with (have done this many times so this is not a problem).
but the problem is tuning for a wide powerband. never had to do this before. there are some obvious stuff that i will be looking at
-Exhaust builts for a wide powerband
-flowing of all ports
-checking the reed area
- a less obv one is staggering the transfer ports.

i thought this right be the place were people have experience in tuning for wide powerbands. what extra things could i do to give me a wide powerband? (any case mods would be most welcome too)

cheers, a fellow two stroke moter enthusiast looking for a bit of a hand, charliec

[EJ]

You mean the RS 125? With the Rotax engine?

[charliec]

yes thats the one, sorry for not saying 

[SachsGS]

Disabling the powervalve  and positioning it in the closed position will certainly soften the hit.

[TMKIWI]

2T  is your man.

[charliec]

Disabling the powervalve  and positioning it in the closed position will certainly soften the hit.

thanks i will do that

i will ask mr - 2T then aswell?

(if you see this 2T im just going to copy and past it, no disrespect!)

[TMKIWI]

I was meaning 2T Institute. He is a member here.