CHAINSAW
09-16-2004, 07:18 PM
I was saving this pipe for my big bore, but its gonna be a while till its done. I recently had this bike on a dyno, and the powercurve was wierd. It hits , and steadies out, dips down some, then goes back up till about 11,000 rpm, then falls off. It should go up, peak, then go back down in a spikier way then it does. We couldnt get an accurate reading on HP either, cause we couldn't hack into the coil for some reason. All our testing so far was done off wheel speed. It only showed 32 HP, but 38 is stock, and this motor has an all out drag port and polish. From the way it runs, we are guessing around 48-50 HP right now.
The guy who runs the dyno is a YZ250 expert, and said he thinks its in the pipe. Here soon we are gonna grab a bunch of pipes, (both drag and regular) and start testing till we find the perfect one. I couldnt wait though, and had to put this one on to see how she runs.
I havent had a chance to get it in the sand yet, so I dont know how it does. Im impressed with the bike as is, but according to him, I havent seen anything from this motor yet. He said once I get a pipe to match the port job, this thing will run nothing like a 250, and no one will believe me when I tell them its just a 250.
Oh, and those are just spare tires and rims. I need to get some shots of it in the sand with the paddles on to show the roost this baby throws.
The guy who runs the dyno is a YZ250 expert, and said he thinks its in the pipe. Here soon we are gonna grab a bunch of pipes, (both drag and regular) and start testing till we find the perfect one. I couldnt wait though, and had to put this one on to see how she runs.
I havent had a chance to get it in the sand yet, so I dont know how it does. Im impressed with the bike as is, but according to him, I havent seen anything from this motor yet. He said once I get a pipe to match the port job, this thing will run nothing like a 250, and no one will believe me when I tell them its just a 250.
Oh, and those are just spare tires and rims. I need to get some shots of it in the sand with the paddles on to show the roost this baby throws.