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View Full Version : How much horsepower can you get out of a 400ex



boondockman
01-22-2006, 10:50 PM
How much horsepower can you possibly get out of a 400ex engine.

aviator4
01-23-2006, 12:17 AM
The amount of horsepower you get out is directly connected to how much money you put in.

:D

01-23-2006, 06:44 AM
u can get over 70hp if u try

Chino886
01-23-2006, 07:01 AM
Originally posted by hetdrunk
u can get over 70hp if u try

:eek2: :eek2: :eek2:


Hey Blue450yo.....

please tell us how you are going to do that on a 4??EX

rooster300ex
01-23-2006, 09:15 AM
I bet if you hop a 400ex up to top dollar mods, and i mean everything, and then you put a turbo on it. It will be pushing alot of power for a 400ex motor. i know on cars&trucks a turbo can nearly double the HP's it already has.

400exstud
01-23-2006, 11:52 AM
I would say somewhere between 50-60 hp on a 500ex.

400exrider99
01-23-2006, 02:30 PM
turbos on the 400ex almost double the horsepower but ur engine wont last as long

440exnacsracer
01-23-2006, 05:19 PM
CT's 440 race motors push about 40hp. i would say with a good 440 kit, extensive intake and exhaust mods and nitrous, 50 rwhp might be possible

01-23-2006, 07:48 PM
Originally posted by Chino886
:eek2: :eek2: :eek2:


Hey Blue450yo.....

please tell us how you are going to do that on a 4??EX

you....are smart!!! LOL i bet it is blue450yo...i guess u know his IP...god blue450yo was a punk

Chino886
01-24-2006, 06:45 AM
No, I don't know his IP address......I just read his posts......

01-24-2006, 10:31 AM
Originally posted by Chino886
:eek2: :eek2: :eek2:


Hey Blue450yo.....

please tell us how you are going to do that on a 4??EX

u can. do all mods/nos/ all that **** and u can have alot hp for draging.

Chino886
01-24-2006, 10:44 AM
Originally posted by hetdrunk
u can. do all mods/nos/ all that **** and u can have alot hp for draging.

okay, lets be serious and down to earth.....

I found this dyno of a turbo 530R that only makes 60hp with all the goodies....

can it be done to a 400ex, probably could but:

1. is it even feasible...

2. can you ride it when its done...

3. durability

I know everything can be done...but then again you have to stay with reason....70HP on 400EX is unreasonable in my book since the pros are only pumping out 60HP on 450Rs....

I don't even think I have seen a 400EX hit 60HPs, drag or not.....Boone had one

01-24-2006, 10:46 AM
in dirtwheels a nmotion 450r had 60 hp only with a engine kit.

Chino886
01-24-2006, 10:57 AM
Yeah, that is a 520 NMotion kit probably and that only makes 60HP, so 400EX and 70 HP....doubt it....

01-24-2006, 11:02 AM
Originally posted by Chino886
Yeah, that is a 520 NMotion kit probably and that only makes 60HP, so 400EX and 70 HP....doubt it....

built engine while using nos im talking about 4 the 400ex

xx3003xrdrxx
01-24-2006, 12:20 PM
my god your such an idiot. Go away and dont come back!:mad:

PismoLocal
01-24-2006, 02:24 PM
i bet you could build a 90-120 hp 400ex.........





























if you put a street bike motor into it. :D

440exnacsracer
01-24-2006, 09:34 PM
Originally posted by PismoLocal
i bet you could build a 90-120 hp 400ex.........

if you put a street bike motor into it. :D

yea, lol

jwick07
01-25-2006, 09:33 AM
just add a lowering kit, yfz shocks to a honda, flip your rims, spraypaint your arms red and add a ton of horsepower stickers to your blue 400ex and your good for at least 90hp right blue450yo...I mean hetdrunk

fandl450r
01-25-2006, 12:02 PM
Originally posted by jwick07
just add a lowering kit, yfz shocks to a honda, flip your rims, spraypaint your arms red and add a ton of horsepower stickers to your blue 400ex and your good for at least 90hp right blue450yo...I mean hetdrunk

LMAO

BlasterEaten250
01-25-2006, 03:11 PM
Originally posted by fandl450r
LMAO there is a name on a different forum that is "getdrunk" and in the picture section its a picture of blue450yo on his 400ex:uhoh: