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View Full Version : 300ex vs 400ex what do u think?



highflyinEX93
04-20-2005, 10:53 AM
A kid said his 400ex with a 407 kit, hotcams camshaft, and white bros filter could beat my 300ex with k and n air filter, outerwears pre-filter, Dyno jet jet kit, fmf exhaust, hotcams camshaft, and new bearings. Who do think would win in a drag race? also let me know what else i could do to get more speed and power out of my machine.

Trevor
04-20-2005, 11:06 AM
My guess would be that he would still have ya but I don't know for sure

Butters
04-20-2005, 11:50 AM
yeah he will beat you.

4trax250x81
04-20-2005, 11:51 AM
The only way to find out who is faster is to actually race!

ethanp87
04-20-2005, 12:45 PM
the 400 would win in a drag but you might be able to beat him on a track if you can ride good.

YFZ450Ridr
04-20-2005, 02:06 PM
he will beat you in a drag race for sure.

2004exrider
04-20-2005, 03:53 PM
well 100 more cc's, and bigger piston his would win.

300ex13
04-21-2005, 10:45 AM
if u had a 330 kit in it and his was a stock engine (no internal work) you would give him a great run for his money!!!! the 330's wake the machine up a lot. a WB eseries will help this kit run a lot better it gives best performance with modified engines.....

honda250xrider
04-21-2005, 01:09 PM
the 400 should walk away

jak1389
04-23-2005, 01:14 PM
the 400 would win most defiantley in dragging

yellowex26
04-23-2005, 02:32 PM
i didnt even know they made 407 kits for a 400ex

ghak99
04-23-2005, 03:53 PM
Originally posted by 300ex13
if u had a 330 kit in it and his was a stock engine (no internal work) you would give him a great run for his money!!!! the 330's wake the machine up a lot. a WB eseries will help this kit run a lot better it gives best performance with modified engines.....

I was with you right up until you said the e series gives the best performance with midified engines.:huh

ghak99
04-23-2005, 03:54 PM
Originally posted by yellowex26
i didnt even know they made 407 kits for a 400ex

It depends on how you do the math, a little bit of rounding can make the 406 bore into a 407, no real difference.;)

87250rxrider
04-23-2005, 04:52 PM
not even a competition... the 400ex should walk away with no problems, unless the rider can't ride at all.

Cody_300ex
04-23-2005, 09:50 PM
This Is a BS post. Hot cams does not even make a cam for a 300ex/250x motor. I Have between 500-550 in my 300 motor and I edge out my friends 440 with a weisco 440 kit, and a stage 1 hotcam.

fasterblaster09
04-23-2005, 09:50 PM
400ex..no doubt

hondardr4life
04-24-2005, 05:44 AM
You will lose. They key to a fast 300ex motor is a port and polish job. Mine walks away from my friend's and they all have piped 400's.

xx3003xrdrxx
05-14-2005, 09:48 PM
buy a faster quad if you wanna beat him :rolleyes: thats what im gonna do haah :macho

redexrider4290
05-15-2005, 03:03 PM
i dont think your 300 would beat a stock 400

I dont think 300's are that fast unless you change the gearing alot and youd need some hop ups then because 300's dont have that much power

Blaster x
05-15-2005, 08:06 PM
Its how good the person is at racing...