few questions. i go riding with my bro's down forest roads and they run 2007 z400 stock and mine is a stock. for whatever reason they smoke by me on straight aways. i bought both K&n filters ( lid and cone) and ordered a pro circuit exhaust. after i install and do the dynojet, should that be enough to take them on the stretch. im on a tight budget...can any one help???/

 

It will help, but I think the Z400 will still pull you.

 

thanks red. thats what i figured...at least i wont be to far behind anymore lol

 

The Z just has more top end. It's water cooled and a little lighter, so it has the edge. The one place the EX excells, is in the tight woods where you need to lug the engine down. That is one place where the Z doesn't do so well, because it likes to rev and you have to do lots of annoying clutch slipping.

Down a long desert wash with both quads 5th gear pinned, a stock Z will slowly walk away from my lightly modded EX.

 

Another mod that will give you a bit more horsepower, is OIL! There is a new generation of very slick ester synthetic oils out there, that contain organic friction modifiers....yet they are wet clutch safe, and will protect your engine better than any oil you could ever imagine! All this reduced friction, results in an engine that will rev up faster and freer.

I run Redline MC, but also recommend Maxima Ultra or Maxima 530MX (in cold weather).

http://www.redlineoil.com/


http://www.maximausa.com/

 

i got a 400ex and my brother has a z 400 , ive bored mine to a 416 & his will run off and hide from me on straight streches , suzuki has a bad little motor there , mayb its the dual cams

 

The gearing has a lot to do with it. Honda geared it like Recon said, so it can lug way down in the gears. The Z reacts more like a 450, faster reving.

 

yea the ex will lug down and is a great trail bike , good n tight woods

 

Thanks recon, everyone. gonna try changing up the oil too. i mean it cant hurt. and your right mine is better on the trails then z400

 

recon. im using belray racing oil now. whats your opinion on that oil?