flow

Hi I’m just reading up on a ton of exhaust systems dreaming of a full system someday. I’ve posted before about exhausts but now I’m wondering about the max flow systems. The street system mostly. 4 into 2. I’ve heard they are basically a ufo exhaust. I’m trying to get as much power out of a full...

Well, there are new hoses, new thermostat, drain cock assembly, the only thing thus far that has not been replaced are the sensors under the radiator cap thingy and radiator cap. Now, as I run the bike, the black overflow tube is pushing coolant to the catch tank and draining out. I can...

How would a too-open exhaust burn a valve? If a 4-1 pipe went from 2-> 2.25 inches to a huge, open chamber, would that cause any weird problems? Any thoughts on whether it could cause a dip in power when the vboost comes in? Just thinking about things and my frankenpipe.

Some had previously installed a K&N in my '03 and ridiculously overoiled it. I pulled it, cleaned the airbox, and am going to re-oil the filter. Problem is, as far as I can tell, air flow goes from the inside of the filter to the outside. If I oil the outside of the filter, won't that...

Just curious if any one has had a stock vmax head on a flow bench & what the flow was on it ? I can probably call John & find out if no one here knows.

My KerKer 2.5" Comp was old and ended up snapping off when riding on the highway. Just got "The Blox". Will be adding video... WOW WEE

Ok I finally got time to check my fuel pump. I put the output into a bottle and filled a 500ml bottle in 20 seconds. That should be plenty of fuel I believe. Fuel tank vent is not clogged and filter is new. My problem is I can run up thru the gears to redline untill I hit 4th. Then it breaks...

http://www.evoluzione.net/evo-cycle-yamaha.htm Here is our first option.

I had some bench tests done today on some VMax and Venture heads. I used VMax cams on both. My hopes were to use the Venture heads as a test set to play with and see where the most improvements can be made in regards to the flow on the intake side of things. As it turns out, the VMax and...

Hello, It is easy and cheap to make a free flow bolt-on type air filter for V-max. All that is needed is: - stock air filter (preferably an old dirty one) - cutting machine of some kind, if nothing available then metal saw can be used - glue gun - piece of plastic foam (thickess 20mm, length...

Hello, If after other checks of the intake system it is found necessary (preferable) to change the size of the main jets, I strongly recommend to check the flow rates of the old ones first - in case that the current main jets have been there for a while. This is particularly true if you have...

I started crunching some numbers today after having taken off my carbs and intake and noticing the oval shaped intake ports. The stock carbs are 35mm (and if I am wrong with anything I say, please correct me) and the top/circular part of the intake is 36mm. The intakes then "blend" into an...