hard to believe

[Napalm Nate]

just flipped through the Febuary issue of dirt wheels and they have an article in there that says a 400 ex with a 12.5:1 416 kit a hot cam and a fmf slip on exhaust is and I quote "the power output is now very close to that of a stock Z400" while I have never rode a z I just find it hard to believe that it is that much faster I think dirt wheels is full of it but just wondered what others thought

[slightlybent47]

yeah that can't be right.

[CJM]

Someone made a mistake there...

[Ryan'07400ex]

Yea I read that and was like wtf? I know a 416ex with a 12.5:1 would beat a stock z400 if my stock 400ex will. I didn't like how it was only like a page too they would write 4 pages for the raptor or yfz.

I also laughed when I read The Grizzly was flawless, the only thing we would change is the height of the foot pegs, which you can do easily. I mean come on you found several things wrong with the rest there has to be one thing wrong with the Yamaha.

Unfortuantely thats the only mag I'm subscribed to right now

[siggy konowaluk]

a stock z400 will only beat a stock 400ex by a quad length or so, but not that much of a difference. the only reason they put out a little more is because they are liquad cooled i think.

[bigbad400]

yeah thats funny i have both in the garage and in stock form the z400 does win but a piped ex will beat a stock z400 with the right rider. ive done it time and time again. 12.5:1 416, with a cam and a pipe should be able to make a z400 look like a turd.

[chucked]

Dirt wheels has been biased against Honda for as long as I know. That's why I no longer have that subscription!

[CJM]

Yea always seem dirt wheels doesnt like honda at all.

However quad magazine just closed down, which leaves us with who else?

[honda400ex2003]

Originally posted by chucked
Dirt wheels has been biased against Honda for as long as I know. That's why I no longer have that subscription!

agreed, same here. steve

[bigbad400]

yea now that "quad" shut down what is left? i never liked dirtwheels i dont ride dirtbikes. dont need to see bikes in my quad mags ya know only quads.

[John Noftsinger]

there talking new 09 quads and the z to ex a quad lenth difference is way off (3-4). i have a Z(had EX) and if you know how to lauch it it will take lead most of the time.

[01exrider87]

Originally posted by bigbad400
yea now that "quad" shut down what is left? i never liked dirtwheels i dont ride dirtbikes. dont need to see bikes in my quad mags ya know only quads.

ATV action?

[KISSmyACE]

my 400ex has just as much, if not a little more than a LTZ 400 with a 440 big bore kit that I've ridden (boyfriends old quad) but that bike had more torque.

I love dirtwheels though, perhaps because I got in it lol! I dont mind the dirtbikes but I'm bummed that QUAD is gone.

[chucked]

friend has a new efi z400, definately has better throttle response then before, but besides that it seems to be the same.

[jdog75]

Originally posted by siggy konowaluk
a stock z400 will only beat a stock 400ex by a quad length or so, but not that much of a difference. the only reason they put out a little more is because they are liquad cooled i think.

plus now there fuel injected and they have dual overhead cams

[Muzzgit]

My 400EX with a Rocket slip-on V's my missus KFX400 (same as Z400) with a T-4 slip on are very close. The KFX will pull away but not by much.

My 400EX now has 406 hi-comp piston, stage-2 cam and ported head and is noticably better, particularly in the higher revs.
( It also now has buggered transmission. Should I re-build or move up to a 450? )

Bummer about QU4D magazine!!!
The writing was on the wall though. Every edition got smaller and smaller.

[CJM]

Looking for magazines I see there is atv action and atv magazine.

I kinda like dirtwheels but agree they are biased. Ive ridden the zuk 400 and EX, about the same powerwise but the EX handles superbly over the Z and thats why i bought one. Course if honda could do EFI would be nice.

[Muzzgit]

Originally posted by CJM
Looking for magazines I see there is atv action and atv magazine.

I kinda like dirtwheels but agree they are biased. Ive ridden the zuk 400 and EX, about the same powerwise but the EX handles superbly over the Z and thats why i bought one. Course if honda could do EFI would be nice.

I know there is a saying "if it aint broke don't fix it" but I think the 400EX is due for an upgrade.......

A. Better front shocks
B. Larger oil cooler or air scoops
C. EFI and Better cam

[CJM]

Originally posted by Muzzgit
I know there is a saying "if it aint broke don't fix it" but I think the 400EX is due for an upgrade.......

A. Better front shocks
B. Larger oil cooler or air scoops
C. EFI and Better cam
Pretty much thats what it needs.

[Ruby Soho]

they're both 400cc recreational quads, they both serve their purpose. i don't think one is better than the other, its preference. if your getting a quad to be competitive your already wrong in going with a 400 these days

[KISSmyACE]

Originally posted by Ruby Soho
they're both 400cc recreational quads, they both serve their purpose. i don't think one is better than the other, its preference. if your getting a quad to be competitive your already wrong in going with a 400 these days

so true.

[Duf6]

hey kiss my ace what dirtwheels where you in

[togup]

honda is the onlyone left with a 400 thats air cooled not counting that korean crap . what about a water cooled top end .

[steve181]

Im sorry, but ive yet to see a z400 beat a 400ex tbh

[dirtman91386]

these is a never ending argument..you need alot more money(1000 dollers more) invested in a ex to make it beat a ltz or kfx...im sry but the ex is indeed need of an upgrade...at least liquid cooled and dohc..untill that happens the ex will always be behind the z in my oponion...honda needs to wake up and get the ball rolling on a new 400cc quad

[steve181]

Originally posted by dirtman91386
these is a never ending argument..you need alot more money(1000 dollers more) invested in a ex to make it beat a ltz or kfx...im sry but the ex is indeed need of an upgrade...at least liquid cooled and dohc..untill that happens the ex will always be behind the z in my oponion...honda needs to wake up and get the ball rolling on a new 400cc quad


Please.....

[dirtman91386]

you dont think that the honda is due for an upgrade?

[steve181]

Originally posted by dirtman91386
you dont think that the honda is due for an upgrade?

no i dont actually

the only thing that needs updated are a few little things

oil cooler location, front shocks


and not to burst ur bubble, but manufactures have been following honda's footsteps in the 400 class, and have yet to prove anything

[dirtman91386]

i think that they introduced the z 400 to compete with the 400ex...but theres not much compition if both machines are stock or mod for mod the z dominates!...dohc and liquid cooled only mean one thing...more hp and better consistant hp...the ex dominated the field of 4wheelers untill 03...i see you have an fcr carb in your sig do you also have a port and polish how much hp you throwing down? not saying a 400ex cant beat a z in a race... just saying the 400ex chassis needs an upgrade with a new powerplant...

[bigbad400]

dude i have both in my garage now and stock for stock z is faster. no doubt about it. but for $1000 your 400 could beat a 450. i have 3 exs(stock hmf pipe, 440 and 426). 1 z400(stock big gun pipe) when i put the pipe on my ex befor i did anything to the z400, i could beat it. now that it has a pipe it takes the 426 to beat it. but i have about $350 into that 426.


bore 10
piston 120
port work 75
hd studs 100
gaskets 45

440 only cost about $800(it was the valves and valve job) and i have beat stock 450s left and right with it. both great machines, the z can be beat for the cost of a pipe, and some jets.


as far as upgrading honda, they need to do shocks def. and they need to put factory air shrouds on the oil cooler. it sucks having to spend 80 bucks on a bone stock machine to keep it cool on hot days.

[dirtman91386]

does your z have a full pipe? we have 2 z's in our group and one 440ex...and the z's have no problem running it down or just passing it in a drag...both of the z's have a full pipes and 400ex air boots. from my personal expirence it took another 1000 bucks into a 400ex to make it beat the z... if you can do it with less money im sure my buddy would really like your secret!...he would love to beat one of the z's that are in my garage...he has hmf slip on(stock header ground down) k&n 440 big bore kit higher comp piston. his bike dynoed at 29.8 hp and like 25tq any cheap tips that would get his bike moving faster than the z's would make a much better race for both of us!

[TRX01]

what? i read that 400ex make 30 hp STOCK....but who noes....i cant count how many times i have read false info on the internet

[steve181]

Originally posted by dirtman91386
does your z have a full pipe? we have 2 z's in our group and one 440ex...and the z's have no problem running it down or just passing it in a drag...both of the z's have a full pipes and 400ex air boots. from my personal expirence it took another 1000 bucks into a 400ex to make it beat the z... if you can do it with less money im sure my buddy would really like your secret!...he would love to beat one of the z's that are in my garage...he has hmf slip on(stock header ground down) k&n 440 big bore kit higher comp piston. his bike dynoed at 29.8 hp and like 25tq any cheap tips that would get his bike moving faster than the z's would make a much better race for both of us!


i can honestly say that now your full of ****

go back to the suzuki forum where u belong

[katch26]

Originally posted by jdog75
plus now there fuel injected and they have dual overhead cams

when have they not been DOHC? :confused:

[dirtman91386]

Originally posted by steve181
i can honestly say that now your full of ****

go back to the suzuki forum where u belong

dude im not bs you...but there is no comparison when you got the same size cc's and 1 of them is dohc...the dohc is going to be easier to make hp and make more for bang for your buck...im just saying its time for honda to level the playing field and fallow suzuki and throw some dohc fi engines in the 400ex frame or somthing....

[Miami_Vice454]

does your z have a full pipe? we have 2 z's in our group and one 440ex...and the z's have no problem running it down or just passing it in a drag...both of the z's have a full pipes and 400ex air boots. from my personal expirence it took another 1000 bucks into a 400ex to make it beat the z... if you can do it with less money im sure my buddy would really like your secret!...he would love to beat one of the z's that are in my garage...he has hmf slip on(stock header ground down) k&n 440 big bore kit higher comp piston. his bike dynoed at 29.8 hp and like 25tq any cheap tips that would get his bike moving faster than the z's would make a much better race for both of us!

your buddy does not have a 440. his internals are stock becasue a BONE STOCK 400ex makes about 27 hp you put full exhaust filter and jet your gonna have like 30. 440's with a cam usually make high 30's

[dirtman91386]

personally when we droped it off i thought thats what it was gaunna make...but the tech dynoing the bike says very rarely does a 440 ex show up and make much more hp then 30...but it is not stock bore...it is a true 440 kit... i personally had 3 bikes dynoed there and believe the dyno to be pretty accurate(with in 1-2hp)...ill try switching bikes with him and see if he wins on the z...but i think that high 30's for hp on an ex or z is way out there...i mean thats pushing 450 territory and i personally would much enjoy seeing any race where someone wins besides a 450....

[steve181]

Originally posted by dirtman91386
personally when we droped it off i thought thats what it was gaunna make...but the tech dynoing the bike says very rarely does a 440 ex show up and make much more hp then 30...but it is not stock bore...it is a true 440 kit... i personally had 3 bikes dynoed there and believe the dyno to be pretty accurate(with in 1-2hp)...ill try switching bikes with him and see if he wins on the z...but i think that high 30's for hp on an ex or z is way out there...i mean thats pushing 450 territory and i personally would much enjoy seeing any race where someone wins besides a 450....


wow you must take your bikes to a bunch of retards

my 440 is putting out high 30's

[dirtman91386]

i hate the bike shop... i think that they do ****ty work...but the guy running the dyno does a great job dyno tuning...and being the only 4wheeler dyno around he has a huge monoply on the market..but if you look at his charts (all the bikes he has dynoed) my buddies bike is right inline with the other 440ex's...so the dyno is accurate across the board(maybe the numbers seem low but there all kinda low,get my point?) im just saying i know whats in the bike as i helped do it, and told him where to get the parts for it...personally we think the 440 kit added tons of power compared to what it was, but it still is lacking a few hp compared to the z's. im not saying our z's are fast cause any 450 with a pipe and jet kit rapes them...just putting my $.02 out there

[coryatver]

The people that write dirtwheels are a whole bunch of southern california dirt bikers they don't know crap about quads. They rip on the 400ex all the time. Everyone knows the 400ex and z400 are about even stock. A modified 400ex will destroy a stock z400.

[dirtman91386]

there not junk...just out dated...honda needs to come up with a sick new fi engine!