Yamaha YZ250FX vs 270cc + Hotcams - back to back comparison on MX track 

thanks brother glad you like the comparison!

Thanks, will do!

thanks for the tip, I had it there before

here you go Doug ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3vi63tVJHe0.html

you dont need to rebalance anything, its plug and play - feels the same vibration wise

@@dirtniron ,thanks Rado ,when are you going to put a 300 big bore into the yz 250 and a Stic module ,you know you want to lol 👍D

I will keep yz stock size but stic metering block sounds interesting 🤔

I think it would make more sense to get 250fx

it is definitely very noticeable upgrade.

yes, I am sure there is some stuff online. do some research on the forums too, thumper talk will have a lot of good info. Stage 2 is better specially in mid and top, doesnt affect the bottom that much. I had it in 2-3 bikes now and its really noticeable in mid range here is some info from MXA: Stage 1. In stock trim, the 2013 KX450F already has good power delivery. The Hot Cams’ Stage 1 cams made the powerband more rider-friendly (largely because the Stage 1 cams had 0.64mm less lift on the intake and exhaust valves). Throttle response was improved, which allowed the MXA test riders to power out of corners with little or no drama. There was an increase in power from the bottom to midrange. The Stage 1 cams would best suit a Novice or Vet rider who is looking for a more usable powerband out of the potent KX450F. Stage 2. Hot Cams’ Stage 2 cams delivered a big bang (largely because the Stage 2 cams had 0.13mm more lift on the intake valves and 1.78mm more on the exhaust valves). The MXA test riders were shocked by the difference these cams made. The Stage 2 cams delivered improved throttle response with a huge hit in the midrange. The power ramped up fast, and because it went through the powerband faster, it felt like it revved less-but that wasn’t true. The Stage 2 cam makes a significant difference, which you will feel instantly. If you want a faster KX450F, this is the cam for you.

I am 5'11 200lbs.. slightly bigger 250f guy ;) this setup makes a lot of sense for me now, really like the power

these guys make them, give them a call www.allballsracinggroup.com

Fair enough! ;)

Also, did you try taller gearing?

this 250fx did fine with the map I had on it before.. some bikes need to be tuned tho. Vortex gives you an ability to tune it

This was on the stock maps with pump gas?

I think you would feel better mid range for sure

yes, its fast stock as well, check my previous videos

I think 270 put little more wear on the engine, so I would stay on the top of it

glad you like it, lets see about that..

try hotcams website or rmatvmc

Depends how much seat time you have.

teen is ok if you are good .. depends

sounds good, thanks for sharing!

Until that 450 gets enough straight it's over with

I should have it soon

I think you got to retype that I got nothing you said

@@Jack-jd6tj Either I'm senile or you need to learn to read.......I'd say it's 50/50. Maybe it was because I was typing with my toes. Have a good day.

Easy to understand.

@@tomnekuda3818 yea the toe typing need improvement, you lost me at the (I’ll be that is gonna sell a lot of kits for that yam) part though

@@Jack-jd6tj See it....the word is "bet" or something close to that. Bike sure sounds sweet with that kit, tho, don't it? I liked the big two-strokes but too damn old to handle 'em anymore. Guess that's the way of things. What don't hurt; don't work. Hang in there, Miller. P.S. Throttle is on the right.....

stock

Did you remap the ecu? Or didn’t change anything on map? Thanks

it sure is!

thanks man, glad you see the power gains

yea, more bottom power and can run lower rpm

same map on both - I revved it more on 250

Definitely!

all good here!

I got one ;)

Cool