I need a ported dirtbike velocity stack ASAP!

[funmachines]

I'm just finishing putting together an E with a ported head and boomers elbow air filter set-up. I have to say that I would never consider putting the stock POS box back in now that I have the the new setup - for a variety of reasons. Maybe the air could get a bit warmer at idle or on a dyno with no air flow, but with the amouint of radiant and convective heat transfer possible I can't believe that once the bike is moving that the air is stagnant enough to get warmed up significantly. Once I get it back on the road I'll put in a thermocouple or a thermistor and a pressure sensor too while I ride and see what the ambient to intake differences really are at a few speeds. Unless someone has already done that?

[cannondale27]

That would work.Annimalscannibal came up with a simple thing to also do is add a sheet of rubber under the filter to seal off the heat.I did that on my quad with open filter and its really effective.Most OEM quads and Streetbikes have something similar.

[wistech]

The iat sensor will verify that. I never looked at it on the d@m at the dyno. Just had to keep an eye on the iac position to get to 205 before the runs. Witha bike that is an issue because we run the blowers a lot more as the bike had no radiator fan.

[thedeatons]

Excellent posts! I love it!

I was thinking a simple carbon fiber sheet would work wonders. I love carbon. Nothing like being able to lick your exhaust canister after riding!