'10 TXC250 baseline dyno

[kleemann]

Here is a shot of the TXC on the dyno:

 

[john01]

Man they are SWEET looking bikes!

 

[huskyte310]

Is that dyno for cars.

 

[kleemann]

Is that dyno for cars.

Yes it is, works really well for bikes too!

 

[huskyte310]

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.

 

[aranpolaris]

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.

 

[kleemann]

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!

 

[aranpolaris]

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

 

[kleemann]

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

 

[raisrx251]

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.

 

[restukey]

Damn, that is the nicest air/fuel line.

Are the hp numbers even accurate with a knobby?

 

[kleemann]

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.

 

[kleemann]

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.

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.

 

[bbcmat]

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

 

[john01]

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

 

[Slowpoke]

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

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

 

[john01]

Or a slight traction issue on the rollers.

 

[kleemann]

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

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.

 

[R_Little]

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.

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

 

[R_Little]

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