Awesome Mod (Recomended)

I had Jeff at Hobbytime Motorsports 417-777-4576 port and polish my head and then he bored my cylinder over 1 to an 86mm 11:1 Dome piston. I went and rode this weekend and it was like riding a new machine. I have that work done with a DMC Alien, K&N, CDI Rev. box. jet kit. And I was pulling my friend on his Raptor, NO JOKES and pulled him hard from start to finish. On dirt and on the street I even made him look worse. It was really cool and he coould not believe it. Now he wants the 725 kit because he said that was unreal what my 400 did to his raptor. Before this work he would beat me every time on the street.:D :D :D

What kind of gas you runnin in that screamer? And do you know what kind of piston he put in? Stock cam? Sounds nice, my buddy just got a Raptor and I'd love to pull him in a straight race, already showed him what a 400EX does on the trail. :D

Oh yea I forgot about the Offroad race cam that is in it. I use Race fuel, mixed with 92 octane half and half in a 5 gallon jug

[emiliano22]

Wooww
What happend if you dont mix with race fuel?
Is 11:1 compresion ratio is too much for 92 octane?

if you didn't use race fuel it prob. run like s@#t

[booneTRX]

You CAN run 92 or 93 octane with 11:1 compression, it will run hotter tho, this is per Mickey Dunlap at FST. He also suggests running a 9 plug vs an 8.

anybody know what the part number is for Splitfire for the 400ex

[MOFO]

I'll save ya a few bucks....dont waste your money on a spit fire. Buy yourself a good NGK. They dont get any better than that...


Eric

yes I agree but the guy up at auto parts store says they do not make one and before I end up killing him I wanted to give him the P/N

What you mean a good NKG ? I thought they only make 1 style

[MOFO]

when I said "good NGK" it was just a figure of speech...make sure you get the right temp rated plug though if you have engine mods...


Eric

[JabberJaw]

I think the best mod would be a BFG mounted to the handlebars...

oops my Quake memories are starting to haunt me....