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Drivers 505sx baseline dyno runs.
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Posted by: ltr311

So picked it up two nights ago and baseline dyno tuned it last night. Dyno show bone stock 175mj vs. silencer out, snorkel off 165mj. LOL 15whp at 9k. Wow. Killer power for stock. I was blown away. Strongest by far stock bike Ive owned. More to come. Im doing a pipe shootout soon for you guys.

http://i24.photobucket.com/albums/c44/Nismo311/DSC01735.jpg

Here is a ds 450 with ron woods pipe, big k@n filter, web mid cams, cp13.6 piston, pc tuned on sunoco 110 for comarison.

http://i24.photobucket.com/albums/c44/Nismo311/DSC01737.jpg

Summary is ktm did their homework. Im happy.

Posted by: ltrracer

dangit, im likin what im seeing and hearing, wont be long before im on the bandwagon

Posted by: Quadevil

Conclusion is, KTM did their homework and the SX is the most powerful stock quad by far

Posted by: GE4x4

A very smooth curve to with real nice torqu #'s. The DS is all over the place. Must be a high hit power with very little bottom end.

Posted by: ltr311

I tested an unnamed slip on also. Torque went up to 38ftlbs!!!! Ill be posting those graphs later in a pipe shootout.

Posted by: bbrad mulvey

dude, you are kinda a big deal! GO BIG ORANGE!lol

Posted by: Agris

50,2 horsepower is from the 505SX crankshaft or rear wheel?

Posted by: bbrad mulvey

from the wheels

Posted by: Agris

because of my poor English, please explain, what do you mean silencer out, snorkel off?

Posted by: ltr311

quote:
Originally posted by Agris
because of my poor English, please explain, what do you mean silencer out, snorkel off?

On the tip of the exhaust there is a threaded silencer. Take it off.

Also on the airbox there is a snorkel on the box that points up towards the seat. Pull that out also.

Posted by: mcarlson1

That is crazy!! 8 hp by just changing the jet, and pulling the spark arrestor and snorkel!!!!!! Cant wait to see what this bad mother runs with some real mods like a pipe, cams, port etc. I wonder what the 450 is maybe 2 hp less??

Thanks,
Mike

Posted by: Quadevil

quote:
Originally posted by mcarlson1
That is crazy!! 8 hp by just changing the jet, and pulling the spark arrestor and snorkel!!!!!! Cant wait to see what this bad mother runs with some real mods like a pipe, cams, port etc. I wonder what the 450 is maybe 2 hp less??

Thanks,
Mike

Jet takes a big influence because the SX and XC come very lean from factory...
Pipe won't give too much hp as in Yami's and Zuki's because the exhaust of the KTM is already very good, as is the filter (twin air). But cams, ported and high comp piston yes, will be great!

Posted by: ltr311

Actually all I did was pull the cork and gained 8whp. Also the bike was rich not lean. I jetted from 175mj to 165mj. But didnt really change the power all that much. Both jets made same power. Just made the curve a little smoother. Pull the cork on your 505 and you got 8whp more, plain and simple. LOL

Posted by: ltr311

quote:
Originally posted by Quadevil
Jet takes a big influence because the SX and XC come very lean from factory...
Pipe won't give too much hp as in Yami's and Zuki's because the exhaust of the KTM is already very good, as is the filter (twin air). But cams, ported and high comp piston yes, will be great!

Actually the stock exhaust isnt as good as you think. The few pipes I did play with added good power. More to come for sure. The stock headpipe is the problem. No steps and is to small where it goes into the can. So there is gonna be pipes that add 3whp trust me.

Ill keep you guys posted.

Posted by: Quadevil

quote:
Originally posted by ltr311
Actually the stock exhaust isnt as good as you think. The few pipes I did play with added good power. More to come for sure. The stock headpipe is the problem. No steps and is to small where it goes into the can. So there is gonna be pipes that add 3whp trust me.

Ill keep you guys posted.

I wanted to say that the stock pipe is better than what we found in the other brands stock pipes.
But lets see the results and then compare

Posted by: RoadRage77

ltr311- You said you'd keep us posted on the pipe testing.. So what did you ever find out ????

Posted by: quadscrib

Go here:

EDIT~

NO LINK! READ THE RULES!!