'10 TXC250 baseline dyno

Here is a shot of the TXC on the dyno:

Man they are SWEET looking bikes!

Is that dyno for cars.

Yes it is, works really well for bikes too!

I ran my 09 te310 on my esp ny emission inspection analyzer for cars too. I could not get the 5 gas analyzer to read co2%. I went by the hc and co readings.

Just wondering if there is any correction for roller inertia on that particular dyno? I know on the one we use you can get totally different readings depending on how hard the bike is strapped down on the roller. I actually had a guy strap my 450 down so hard it dropped from 62 to 53 hp but the roller inertia was something you would see with a full dresser with two fat chicks on it.

You can see the losses on a decel run and you can adjust/change/correct.

You have a 450 that makes 62 hp? Thats Big Red 450R FI with all the bells and whistles territory- pro SX!

02 CRF450 waaayy too much money in it, cnc big valve head, 13.5:1 wiseco, stroked heavy crank, HUGE web cam R+d ti springs, balanced degreed all the goodies. Ice bike only, tears your arms off

DynoJet dyno, done at DynoJet in Nevada, with PC 5 and mapped to 13.2:1

Excellent, now do me a favor and have the magazines test ride your bike now!! I think you will see your hp numbers go up after the motor gets a little more time on it as well. The first few hours my bike was new when you turned the engine off it stopped instantly. I bet the throttle response is much less on/off with this set up and more responsive. Good Stuff.

Damn, that is the nicest air/fuel line.

Are the hp numbers even accurate with a knobby?

Racer X: less than 4 hrs on my my machine- so Im hoping I see an increase in total HP an TQ- even if I dont the bike is wonderful as far as I'm concerned.

Restukey: I had mounted a IRC Trail(something) DOT tire for my trip to DJ. Looks knobby like- but its really a smooth tire with HUGE sipes. As Ive stated b4- I never see a diff in power with a knobby vs a slicker tire- just not as much of a bull ride while you do the dyno run.

My bike has insane response- so much so Id say that most would think its TOO responsive. I love it- but I think if you like the slower response vs throttle tube twist a G2 throttle tube with the 3 different cams (OE, 200 and 400) might be what "tames" that issue.

Do you have an theories on why the HP curve 9000+ rpm has that wave in it? It's present in both the stock and power commander fueling setups, and on both dyno setups.

MAT

Congrats that's a very nice usuable power curve. It doesn't drop off, flat usable power very nice.

I wouldn't be surprised if it has something to do with wave harmonics in either the intake tract, or the exhaust, or both.

Or a slight traction issue on the rollers.

I do. The faster you go on the roller, the more power the bike makes, the more it stands up. The rear swing arm was really dancing! The tire I used was very, well..used. It was not perfectly balanced (not even close) and may not have been totally concentric either. I can see how that lively rear wheel action could have an effect on the roller speed and make the wave in the curve.

My New TE250 feels tight too.

The broke in TXC I set rode was much harder hitting.

Same set up between both bikes...same exhaust and CO settings

I just got my I-beat and remapped my CO and my findings mimic yours.

Bike was deliverd w/o the SA and was mapped 111,105,102 and the motor was loud but very sluggish.

I put the SA in and went to 102,105,102 and found the bike ran much better on the bottom and mid. Since it is new I did not WFO yet.

I ended up @ 101,103,102 and it seems to run fine with moderate noise.
Starts right up electric or kick.

I will say the broke in TXC I tested was still faster but now the TE is definitely rideable like this.

motor still stops imeadiately after you turn it off..like it is super tight