[how fast is yours] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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how fast is yours
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Posted by: jojohead

how fast is your 250 ex and what do u have in it...

Posted by: m.h.s.c.#527

well ill go first first of all this is going to be a very controvercial thread mine will go what a stock one will and just about every one one here will go that because i think one person has an over rev box the real question is how fast can u get it there and ill tell u what with the low pro tires and exhaust mine gets their dam fast

Posted by: YFZ450Ridr

really a stock 250 is give or take 50mph. with it being shaft drive you cant regear anything. the only way to alter the top speed is to increase the rev limiter which doesnt give you all that more top end, or go with bigger tires.

Posted by: m.h.s.c.#527

thats what i jus said

Posted by: Traindog71

My stepson has hit 60 on GPS on a 1-2% downhill grade, but it does have the ProCom CDI, Web Camshaft, JE .020" over High Comp Piston and HMF, EHS Racing Air Box Lid and proper jetting,

bone stock top speed was 52 MPH, the combination of the extra revs on the CDI, along with the added power from the high comp piston and camshaft and adequate air/fuel mixture gives it quite a bit more capability on top end

Stock HP rating is about 13 at the rear wheels, I would say that his is pushing 18 at the rear wheels, it definately feels more torquey than a stocker 300EX I have ridden which supposedly is 17 RWHP

Posted by: db250EX

Where did you get your CDI?

Posted by: 250exkid

nice how much did the better mods cost?

Posted by: 250exkid

we should be posting pics to.... heres mine and how do you past to pics at once???? side veiw...

Posted by: 250exkid

now that i can actually hit the rev limiter with the few mods i do have mine goes 52 heres my pic of my pipe...... i need to no how to post 2 pics at once...

Posted by: Rider-trx_250ex

quote:
Originally posted by Traindog71
My stepson has hit 60 on GPS on a 1-2% downhill grade, but it does have the ProCom CDI, Web Camshaft, JE .020" over High Comp Piston and HMF, EHS Racing Air Box Lid and proper jetting,

bone stock top speed was 52 MPH, the combination of the extra revs on the CDI, along with the added power from the high comp piston and camshaft and adequate air/fuel mixture gives it quite a bit more capability on top end

Stock HP rating is about 13 at the rear wheels, I would say that his is pushing 18 at the rear wheels, it definately feels more torquey than a stocker 300EX I have ridden which supposedly is 17 RWHP

Where did you buy a Web camshaft and a high comp piston? I've been looking for those for ages......

Posted by: Rider-trx_250ex

quote:
Originally posted by 250exkid
now that i can actually hit the rev limiter with the few mods i do have mine goes 52 heres my pic of my pipe...... i need to no how to post 2 pics at once...

You need to get photobucket and copy the im,ages into the thread.