400ex needs to be faster
#4
400ex needs to be faster
I just put in a weisco 440 kit with 12.5-1 piston ,stage 2 hot cam and changed my jets.It made an awesome difference in power.I now have to change my sprockets because it hits the rev limiter too easy.Which is no problem because it will give me more top end.I am going 1 tooth bigger on the front and 2 smaller on the back,this should give me 15-20 mph more top end.(I LUV IT).My previous mods were FMF HI-FLO header
FMF powercore 4
K&N air filter
Dyno jet kit
Ill keep u posted on how much difference the sprockets make if you like.Also I use octane booster to be safe.(It will run good on pump gas).The 440 kit cost me $1225.00 (canadian) installed.Which I thought was an excellent price.
FMF powercore 4
K&N air filter
Dyno jet kit
Ill keep u posted on how much difference the sprockets make if you like.Also I use octane booster to be safe.(It will run good on pump gas).The 440 kit cost me $1225.00 (canadian) installed.Which I thought was an excellent price.
#7
400ex needs to be faster
thanks exkicksazz but i dont think i want to jump up to a 440 kit, ive heard many bad things about going that way. overheating, blowing head gaskets, and several others. instead i was thinking about a kit from powroll, a 415 kit with je 10.8:1 compression piston, along with it i was going to buy a stage 2 hotcam. would this make enough of a difference to bother?