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Warrior vs 400EX

This is a discussion on Warrior vs 400EX within the Yamaha YFM350 Raptor/Warrior ('87-Present) forums, part of the Performance /Technical category; I was wondering...if i modded my warrior like i was planning, will it be able to hang with a 400 in a drag? Here are ...


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Old 03-29-2004, 07:00 PM   #1
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Default Warrior vs 400EX

I was wondering...if i modded my warrior like i was planning, will it be able to hang with a 400 in a drag? Here are my planned mods, an HMF pipe, Hotcams Stage One, K and N, Holes in airbox, and a 14 tooth front sprocket. I think it will beat them, the 14 tooth sprocket will put me close in top speed. The Pipe will make up for the lost bottom end and add a lil speed. And the cam and k and n will give me more bottom to mid range..right? What do you think?
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Old 03-29-2004, 07:18 PM   #2
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i think ull hang with em but not beat em
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Old 03-29-2004, 07:19 PM   #3
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im not sure if you would beat him but you be close. depends on the rider alot
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Old 03-29-2004, 07:21 PM   #4
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you'll hang with them if u wanna beat them id go with a hi-comp piston 450 lift cam w/ springs k&n filter an HMF Pipe with a 14 tooth you'd prbly beat him then
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Old 03-29-2004, 07:37 PM   #5
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Try a search, this has been asked a million times.
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Old 03-29-2004, 11:44 PM   #6
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I've got everything but the cam, and it don't touch a 400EX.I don't know how much difference the cam will make.
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Old 03-29-2004, 11:59 PM   #7
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Why a hotcam stage 1? its the weakest cam you can get.
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Old 03-30-2004, 12:52 AM   #8
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you will keep up but it mite depend on how good they are
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Old 03-30-2004, 08:11 AM   #9
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jakal maby because with that u dont need to get any other htings like vavle springs, simple and easy.

LittleD i would say it will be closer but not beating, and the hotcam i belive gives u more topend, not bottom, i high compresion pistin would give u a much better chance, with way more bottom end
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Old 03-30-2004, 09:59 AM   #10
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My '00 Warrior was quite capable of beating 400s in the drag to the first corner, but I had lots done to it. Port&polish, WB .390, Wiseco 10.25, no airbox lid AND holes in the box, DG full system. Plus it was geaaring right. I'd leave the line in second. There were many nights when our classes ran together and I was in the middel of the 400s at the first corner. Of course, the ones that had very much work were in front of me, but you get the idea. And it also depends greatly on rider ability.
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Old 03-30-2004, 11:05 AM   #11
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i think that if you geared your warrior right then you would have a good chance of keeping up to the 400 ex i have raced my friend on his 400 ex and my warrior and his had a dg pipe and mine was allmost stock and the first couple of gears where both very close but once he hit 4th and 5th he was gone but it was close in 1st to 3rd
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Old 03-31-2004, 06:11 PM   #12
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my warrior has a 20 more cc big bore kit with a white bros pipe 15 tooth ront sprocket kand n air filter and it woops my uncules 400ex with a curtis sparks pipe and jetting with a k and n air filter
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Old 04-03-2004, 08:55 AM   #13
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that is because you have 20 more ccs we r talking bout just stock 350s not 370s there warrior racer 3500
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Old 04-03-2004, 07:26 PM   #14
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So the 400ex still has 30 more CC and 50 less pounds than his warrior. From the races I have done against stock 400EXs I have won once.
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Old 04-05-2004, 09:32 PM   #15
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I just got an 02 400ex today and i raced my dad on the warrior.It wasnt a real race cause no one started us but he jumped first and i spun but once it hooked up i caught up to him, and when he was in 5th i went flying pasted him and the ex has got a bigger topend. To beat an ex youll need alot more mid and topend power.
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