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ridered32
08-05-2008, 08:53 PM
I have a 400ex that was recently overhauled and bored to a 416 but it seems to me that it has very little low end. in a drag it barely edged out a 426 but the 426 has much more low end. im thinking about upgrading to a 426. would a different pipe help me out or a cam or something? opinions?
drew416ex
08-05-2008, 08:54 PM
Well what kind of mods do you have? When I had a 416 it had plenty of low end torque. Its all in the setup.
Wheelie
08-05-2008, 08:58 PM
The 1mm in overbore and 10cc isn't going to make that big of a difference. If you want more low-end, gear it down or install a high compression piston if you don't mind running race gas.
ridered32
08-05-2008, 09:00 PM
weisco piston, dg full system, removed air box lid. it just seems like it has the same amount of power as one of my friends stock 400s but it will out run it. im not sure about the dg pipe. from what i've read on here they are junk.
Wheelie
08-05-2008, 09:03 PM
Are you still running the stock cam?

Install a 450R carb, great mod for the $$.
ridered32
08-05-2008, 09:04 PM
yea. how much are 450 carbs?
buster024
08-05-2008, 09:40 PM
You can pick up the 04-05 450R carb from servicehonda.com for around $160. It's an excellent upgrade.
ridered32
08-05-2008, 09:43 PM
well my brother n law has a 450r and i think he put another carb n it so i may talk to him about his old one.
REDRIDDER
08-05-2008, 10:01 PM
Id have to say a 426 of course lol... plenty of nuts and when using 14 tooth sprocket it accelerates wicked.
fastredrider44
08-06-2008, 08:42 AM
I would have to say 426 as well, however if it has a recent bore, just work with what you have. Yes, a pipe, cam, and carb would work wonders for you.
mooseracerX
08-06-2008, 08:59 AM
This have a few up grades and I thought it was informative. It told about 2 different motor kits.
http://www.partsforatvs.com/honda/400ex/
dariusld
08-06-2008, 09:19 AM
If your running the stock cam, its really holding you back.
ridered32
08-06-2008, 10:26 AM
i have riden a 426 and i loved the power it had. i dont really feel like putting more money into mine. it already has quite a bit n it. i would really like to just sell it and buy a 426.
fastredrider44
08-06-2008, 12:50 PM
The difference in a built 426 and a built 416 is not enough to warrant selling your fourwheeler to get another one. If you are going to sell your wheeler for another, at least upgrade to a 450.
ridered32
08-06-2008, 06:07 PM
well i have thought about that but the only concern i would have is hurting myself. thats what my parents are worried about too.
fastredrider44
08-07-2008, 09:20 AM
You can get hurt riding a breeze. Just use your head when you ride and you can be safe on anything.