snowprophet1 Posted July 6, 2012 Report Share Posted July 6, 2012 My setup is just under 400cc with drag ported stock cyls, 6mm stroke, CPI inframes, and a pair for 33mm mikuni flatslides from a 700srx snowmobile. I am making 75hp with the foam 2"id x 3"od x 6" overall length uni filters. Now the filters are starting to break down and while drag racing, longer 500' runs seem to need just a little more top end. I would like to get some better breathing air filters than what I have now. They are only for drag racing, but will see asphault, dirt, and possibly sand. The filter side of the carb is 1.970" (close to a standard 2"?). I've seen some monster size filters on other good running banshees, so I figured this would be the best forum to ask. After I get some better filters I'll re-dyno tune to make sure I'm not too lean. Any air filter recommendations and where to get them would be AWESOME! Thanks in advance everybody! Quote Link to comment Share on other sites More sharing options...
Tedder Posted July 6, 2012 Report Share Posted July 6, 2012 Hey Mark, Going to come play with us at Thompson? lol Don't mean to hijack your thread. Just haven't heard from you in a while and wanted to say HI ! We use $25.00 K&N knock offs that Jeff at FAST RACING carries. Quote Link to comment Share on other sites More sharing options...
duecebanshees Posted July 7, 2012 Report Share Posted July 7, 2012 Hey Mark, Going to come play with us at Thompson? lol Don't mean to hijack your thread. Just haven't heard from you in a while and wanted to say HI ! We use $25.00 K&N knock offs that Jeff at FAST RACING carries. Ted is just giving away those go fast secrets again....................... Quote Link to comment Share on other sites More sharing options...
lowriderb Posted July 7, 2012 Report Share Posted July 7, 2012 My setup is just under 400cc with drag ported stock cyls, 6mm stroke, CPI inframes, and a pair for 33mm mikuni flatslides from a 700srx snowmobile. I am making 75hp with the foam 2"id x 3"od x 6" overall length uni filters. Now the filters are starting to break down and while drag racing, longer 500' runs seem to need just a little more top end. I would like to get some better breathing air filters than what I have now. They are only for drag racing, but will see asphault, dirt, and possibly sand. The filter side of the carb is 1.970" (close to a standard 2"?). I've seen some monster size filters on other good running banshees, so I figured this would be the best forum to ask. After I get some better filters I'll re-dyno tune to make sure I'm not too lean. Any air filter recommendations and where to get them would be AWESOME! Thanks in advance everybody! the idea behind the longer filters is similar to having velocity stacks on the carbs more filter area will also let the carbs/motor pull air more freely into the motor without being choked down. while your at it getting filters get some outwares as well, this will help on the dusty days.. Quote Link to comment Share on other sites More sharing options...
badassbanshee479 Posted July 7, 2012 Report Share Posted July 7, 2012 i run the extra long filters because if ya have ever started an alky bike with the filters off and rapped it a few times, you will see when the slide shuts a bunch of alky sprays back out of the carb.... i figure if i run the long filters i will have more area to draw air from even with the carbs spitting out alil bit of raw fuel on them.... Quote Link to comment Share on other sites More sharing options...
snowprophet1 Posted July 8, 2012 Author Report Share Posted July 8, 2012 (edited) badassbanshee479, your picture looks like Silver Lake Mi? I was just there last weekend! And Tedder, I'll have to give them a call and get me some of those filters. And yes, I'll have to make it up to Thompson's soon! I just got back from Norwalk's Summit Raceway Park, minutes ago and it was awesome! Lots of Nytro cars, and fast bikes! One girl on a bike had a brake failure and went through the sand trap at the end, and continued on into the corn field until bailing off! She walked away w/and injured pinky and being real sore. (wrecked the bike a little). FAST stuff there!!!! AWESOME. Sunday I have some hill drags to go to with the banshee, but I'll just run the small foam filters for now. I'ts such a short run anyways. Thanks guys. Talk to you later! Marc. Edited July 8, 2012 by snowprophet1 Quote Link to comment Share on other sites More sharing options...
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