Really stupid question but.........

[RNL]

Sounds dumb but I have to ask, are the newer 400ex's faster than the old original body style 400's? A guy that rides at work was saying when his buddy and his cousin line their 400's up, with identical mods, the 2008 always wins .One is a 2008 and the other is a 2004(fresh rebuild) both with slip on HMf's, open lid and UNI filters with jetting. I cant see why there would be much differnce at all, but he says the newer 400's have different gearing and accelerate harder and faster. Anyone ever had any results or experiences like this?

[hondaking52]

the 05's and up do have different gearing...but thats the only difference..

[ridehonda400ex]

I believe ive heard that the stock gearing on the 05 and up is lower than the old style because of reverse and i even heard that the 05 and up are like 387 true cc's compared to the 397 true cc's of the old style, so saying all that is true, stock for stock and equal riders, the old style would most likely be faster. This is from what i have heard so i hope i didnt make myself sound like a fool, im also assuming that the 05 and up engines are identical in specs since they all have reverse versus the old style with no reverse

[CJM]

If anything the newer 400's are slower b/c the gearing is designed more for torque b/c of the added reverse gear. Old EX had 15/38 which equates to a topspeed of about 75mph with 20 inch rear tires, newer EX has 14/39 which is only about 70mph.

Probably ones a better drag racer than the other or maybe one of the quads is getting tired.

[jcs003]

Originally posted by ridehonda400ex
I believe ive heard that the stock gearing on the 05 and up is lower than the old style because of reverse and i even heard that the 05 and up are like 387 true cc's compared to the 397 true cc's of the old style, so saying all that is true, stock for stock and equal riders, the old style would most likely be faster. This is from what i have heard so i hope i didnt make myself sound like a fool, im also assuming that the 05 and up engines are identical in specs since they all have reverse versus the old style with no reverse

how did they change the displacement of the engine? smaller bore...shorter stroke???

[CJM]

The cyl is not any smaller on the new ones, my friends is an 05 an d its stamped 397cc right on the cyl.

[ridehonda400ex]

Thanks for clearing that up for me CJM. I kinda thought it was BS

[jcs003]

Originally posted by ridehonda400ex
Thanks for clearing that up for me CJM. I kinda thought it was BS

x2...that would make no sense to make a smaller engine.

[450rJam]

race 5 times, then swap and race 5 more and you will have a better idea of which quad is faster

rider weight and skill have alot to do with it

[NMills]

is just the external gears that are different or are the internals different from 04 to 05????

[CJM]

Originally posted by NMills
is just the external gears that are different or are the internals different from 04 to 05????

Internal gearing is slightly different overall, including reverse and the sprockets as already mentioned.

I think reverse is nice to have, but it aint needed all the time. Does come in handy tho, last week woulda been nice cause pushing it got kinda tough due to the spot I was in.

[01boneless]

Originally posted by tri5ron
I've never heard of 2 stroke oil being used in a 4 stroke engine, and I don't know anything about it countering any supposed negative effects of ethanol.
I suppose it might offer a bit of upper cylinder lube, that otherwise would not be there,... but at 200:1 - 300:1, I'd have to agree that it would be equivalent to peeing in a swiming pool.

What I can state, in a somewhat related subject is,...
I have used a few ounces of Marvel Mystery Oil, in the fuel tank of my '56, and there is a VERY noticeable difference in how smooth it runs, as well as my "Butt Dyno" seems to detect a little more power.

I have used MM Oil in various vehicles over the years, and some seem to respond with positive results, and others not so noticeable.
It does seem that older carb'ed engines respond more, to the additional "upper cylinder lube", than the newer FI engines.

Makes my old lawn mower a little happier too. :D



I have used it in my quad once or twice, and have'nt really been able to tell much difference.



you replyed to the wrong topic :)

[tri5ron]

I had 2 separate windows open, and guess I wasn't paying attention.
Oh Well,...
S**t Happens.

Deleted it here, Put it in the correct thread now.

[spcfraley]

I have an '04 that is all stock except for a k&n air filter, stock exhaust with baffle cut out and a 152 main jet while my brother-in-law has an '07 with a Uni filter and full Bill Balance exhaust with a 162 main and I can beat him in a drag every time. And both rides have 20 inch tires. The gearing is different. The '04 is 15/38 and the '07 is 14/39. Like already posted, the older ride will win unless there may be a huge weight difference in riders. JMO.

[HondaRacing83]

Originally posted by CJM
If anything the newer 400's are slower b/c the gearing is designed more for torque b/c of the added reverse gear. Old EX had 15/38 which equates to a topspeed of about 75mph with 20 inch rear tires, newer EX has 14/39 which is only about 70mph.

Probably ones a better drag racer than the other or maybe one of the quads is getting tired. Liar. Youve got it reversed. 05+ is 15-38. 04- is 14-39. Ill lay money on it. Ive had both. SO has my dad and my buddy and his buddy. Ive had an 01 and an 05. My 05 has 15T and the 01 had 14T and my dads buddy specifically put a 15T on his older 400.

[CJM]

Go look it up for yourself. 05+ has 14/39, 99-04 had 15/38. Not sure what your friends quads had going on, nor do I care. Want a good example, my buddies have 3 (05, and 2 07's) all of them have 14/39.

Dont believe me? Call honda and ask for them-they will tell you the same. Look it up on the net, rocky mtn, motosport, take your pic.

Arguing with me wont get you anywhere.

[HondaRacing83]

Gimme the website that says that.

[CJM]

Like I said, call honda.

But to entertain you ill post some websites:

http://www.rockymountainatvmc.com/machineSpecs.do

Notice it says its 38T, now notice the year 2000
http://www.bikebandit.com/houseofmotorcycles/2000-honda-trx400ex-fourtrax-ex/o/m2657#sch97379

Notice 15T front, notice the year..2004 to entertain your bs..
http://www.bikebandit.com/houseofmotorcycles/2004-honda-trx400ex-fourtrax-ex-sportrax-ex/o/m2660#sch306368

hey, a 2004 with a 38t rear is stock...what an amazing thing!
http://www.bikebandit.com/houseofmotorcycles/2004-honda-trx400ex-fourtrax-ex-sportrax-ex/o/m2660#sch310798

Now please stop making a fool out of yourself kid, like I said call honda if you dont believe me.

[finsteratv]

05+ is geared lower as stated above. someonehas there nuts crossed.

[2001400exrida]

Originally posted by CJM
If anything the newer 400's are slower b/c the gearing is designed more for torque b/c of the added reverse gear. Old EX had 15/38 which equates to a topspeed of about 75mph with 20 inch rear tires, newer EX has 14/39 which is only about 70mph.

Probably ones a better drag racer than the other or maybe one of the quads is getting tired.

the old ones are definetly a little faster top end.

the new ones feel faster though because they have more power at hand with the lower gearing.

I've never heard of a 400ex doing 75 on stock gearing without some major mods.

my 2007 does 65 max and it has a slip on and air filter.

i have yet to test the 2001 since it still has a fresh piston in it. I'll rev it out here before long.

CJM is right, the older models have the taller gearing, new models are shorter.

[CJM]

75mph was untested bud, I take the numbers from the wonderful gearing calc we use. 65mph is about on par with with what an 05+ does tho according to the calc.

[spcfraley]

Originally posted by HondaRacing83
Liar. Youve got it reversed. 05+ is 15-38. 04- is 14-39. Ill lay money on it. Ive had both. SO has my dad and my buddy and his buddy. Ive had an 01 and an 05. My 05 has 15T and the 01 had 14T and my dads buddy specifically put a 15T on his older 400.


So! Did you pay up?:D

[CJM]

Originally posted by spcfraley
So! Did you pay up?:D

Im waiting, lets say the wager is a buck..thats not alot..

[RNL]

Originally posted by 2001400exrida
the old ones are definetly a little faster top end.

the new ones feel faster though because they have more power at hand with the lower gearing.

I've never heard of a 400ex doing 75 on stock gearing without some major mods.

my 2007 does 65 max and it has a slip on and air filter.

i have yet to test the 2001 since it still has a fresh piston in it. I'll rev it out here before long.

CJM is right, the older models have the taller gearing, new models are shorter.

That would explain it. Lower gearing, faster acceleration. With the lower gearing I wonder if they keep up with the Z400's any better, or still get smoked.

[tri5ron]

WOW,... Who decided to have a pissing contest without inviting me ???

Gee, I feel so left out, and unloved.

Think I'll go cry in my ice cream now.

Naw,.... on second thought,...
I'll just stick a bag 'o corn in the microwave,

http://i111.photobucket.com/albums/n148/tri5ron/Emoticons%20and%20funny%20pics/popcornsmilie.gif


Then, sit back and watch the fireworks fly...
http://i111.photobucket.com/albums/n148/tri5ron/Emoticons%20and%20funny%20pics/partyfireworks.gif


hey 83,...
after you pay up to CJM, Please let us know how that Sponge Pudding tastes, OK ?

V
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http://i111.photobucket.com/albums/n148/tri5ron/Emoticons%20and%20funny%20pics/spotteddick.jpg

[honda400ex2003]

pass that pop corn over :D i missed it also but am here now. :D

through 04- 15/38

05+ 14/39 with internally lower gearing also

this is common knowledge for anyone with a 400ex who is worth their weight in salt or even mud.

haha
Steve

[HondaRacing83]

Holy ****. I've been proven wrong. I'm sorry CJM. I was taking all that from what people told me and never really felt the need to look it up. Guess i had it mixed up.

[tri5ron]

and just how WAS that sponge pudding ?

[HondaRacing83]

A taste beyond recognition.

[tri5ron]

you're a good sport.

Humble pie, is the only known antidote, for removing the effects of sponge pudding.
They are not often found together.

Bravo !

[NMills]

WOW.... after all that... i forgot what the stupid question was....



just remember... the only stupid questions are those that are never asked...

[tri5ron]

Originally posted by NMills
WOW.... after all that... i forgot what the stupid question was....

just remember... the only stupid questions are those that are never asked...
And so, on that note,...
I've heard that Yellow 400EX's have 18.39478 & 27/12ths more H.P. than Red 400EX's.

Unless, of course,...

...the Red 400EX has Pillowtop Grips, Honda hp4 oil, and some Fancy Graphics.

Can anyone tell me why this is ?

[NMills]

Some things are just not meant to be known...

[CJM]

hehe its ok man.