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DGR
07-01-2004, 08:26 PM
my friend's said his dad 400ex will do 42 hp .
Here's what he got :

Kn air filter
No air box lid
Dynojet kit
Hotcam stage 2
Supertrapp exhaust

Can it really do 42horsepower ?
I don't think so but he is ...

TC426EX
07-01-2004, 08:33 PM
Nah, no 42 HP there... Take a look at my sig... With all those mods done to my motor I was dynoed at 48HP... A stock 400ex is in the high 20's (like 28 or 29 or something...) with those mods, he is probably running somewhere in the low to mid 30's at best...

RAPTORAZ
07-02-2004, 09:04 AM
Without having a high compression piston, I'd say he'd be lucky to make 32 RWHP. Mine dynoed in at 33.5 RWHP with the mods in my signature.

K_Fulk
07-02-2004, 09:58 AM
I have the same motor as tc426 and mine only dynoed at 42.

H_W
07-02-2004, 03:57 PM
Originally posted by DGR
my friend's said his dad 400ex will do 42 hp .
Here's what he got :

Kn air filter
No air box lid
Dynojet kit
Hotcam stage 2
Supertrapp exhaust

Can it really do 42horsepower ?
I don't think so but he is ...

There is no way it has 42 hp. With what is listed, he would be lucky to have 30 hp.

DGR
07-02-2004, 04:15 PM
thanks a lot thats what i was thinking but my friend wasnt believing me.

markk
07-02-2004, 04:21 PM
YEah, somone is feeding u a line of S#!T, WEll with my mods that i have listed, i Beleive that im only making somone around 33-and 35 HP, and i heard that a stock 400ex has right at 28HP, With the carb adjustments, and the breather not being restrickted, i think he might be able to touch 30hp, but nothing over 31 thats for sure.

04'400ex'er
07-02-2004, 08:04 PM
Stock 400ex has like 26.8 hp.

skemp
07-02-2004, 09:44 PM
My fully built 416 made 43 rwhp on a dyno. A stock 400ex was put on the same dyno and it made 27.4 rwhp, just for a baseline. Tell your friend he is lying and your dad can beat his dad up.

nakomis0
07-04-2004, 07:43 AM
Originally posted by TC426EX
Nah, no 42 HP there... Take a look at my sig... With all those mods done to my motor I was dynoed at 48HP... A stock 400ex is in the high 20's (like 28 or 29 or something...) with those mods, he is probably running somewhere in the low to mid 30's at best...

Got the dyno sheet for that 48 'er?

All dynos are different, but I'm the same as the other guys my 440 only put out 42.

TC426EX
07-04-2004, 08:32 AM
Yeah, I got the dyno sheet, Ill PM you...

nakomis0
07-04-2004, 12:24 PM
Its ok ya don't need to send it.

Bring that bike to Silver Lake and you can prove it to me there. I'll be there next weekend and any other weekend your up there. :)

DGR
07-04-2004, 03:27 PM
Originally posted by skemp
My fully built 416 made 43 rwhp on a dyno. A stock 400ex was put on the same dyno and it made 27.4 rwhp, just for a baseline. Tell your friend he is lying and your dad can beat his dad up.

My dad's 416 (soon 426) will beat his dad's 400 :D ;)

markk
07-08-2004, 08:58 PM
Originally posted by DGR
[ OK this needed a few changes il make it right!!!!


B]my friend's said his dad 400ex will do 42 mph .
Here's what he got :

Kn air filter (mabey K&N!!!) (foam is better)
Lost air box lid
Dynojet kit ???(what size jets???)
Coldcam stage 7
Supertrapp exhaust ( i think that make u loose HP)

It can really do 42 miles per hour !!!!!!
I don't think so but he is ... [/B]

IM JUST JOKING GUY DONT GET MAD!!!!


So it looks like you buddies dad has a 400ex, that breaths alot of dirt, and lost his air box lid, Threw all the jets in the carb, Bought a good cam, And he went from 42hp before the supertrap, to a mearilly stock 29hp after the exhaust MOD!

sorry man i couldnt pass this up!