sheerider11 Posted June 29, 2014 Report Posted June 29, 2014 This started in the live thread and I've had this discussion with a lot of people a lot of times. Well I have filters for 39 pwk carbs on my 35s as per cam. He said there a little bigger and it may cause a slight bog if I snap the throttle switching to them. Don't see why the air inside the filter should matter. They breathe. Now I see a filter only failing when the vacuum becomes so great, the filter collapses. Quote
WINDYCITYJOHN400 Posted June 29, 2014 Report Posted June 29, 2014 (edited) Picture drinking from a straw. If it's a wide straw that is long, it will take more time to get fluid up to your mouth. Smaller and narrow will get it to you quicker. The interior space of a filter holds a volume of air. This is a time buffer to air needing to flow thru the filter material and into the filter to replace the original air. This can cause a hiccup in the flow as the motor now stumbles in the transition from easy to use air to having to suck the needed air thru the filter material. Hence the use of pod style filters on bikes you ride. (Like on and off the throttle type riding) You don't want a little bog each time. Drag bikes tend to get reved up enough that the really big filters are drawing air before a clutch is released so it doesn't really effect them so they run monster filters. I put some 6" PVC pipe extentions on my carbs on time to move some pods back for more clearance for some BB CPI pipes. Right away I had a bog. Edited June 29, 2014 by WINDYCITYJOHN400 Quote
sprinklerman Posted June 29, 2014 Report Posted June 29, 2014 K&N states their filter media flows 6.03 CFM per sq inch. I guess someone should measure the surface area of the most commonly used pod sizes for a baseline. I don't know at how many inches of water column that measurement was taken btw. Quote
LaegerEliminator Posted June 29, 2014 Report Posted June 29, 2014 ^^^ Is that zip tie holding up to the heat coming off your stinger tubes? Sent from my DROID RAZR using Tapatalk Quote
locogato11283 Posted June 29, 2014 Report Posted June 29, 2014 ^^^ Is that zip tie holding up to the heat coming off your stinger tubes? Sent from my DROID RAZR using Tapatalk Yea. I've never had a problem with it. I use it year round. It just helps hold up those long ass filters. Quote
Finch Posted June 29, 2014 Report Posted June 29, 2014 im running 5 in filters on my cub must be why its so slow Quote
trickedcarbine Posted June 29, 2014 Report Posted June 29, 2014 ^ nah, it's slow cuz you can't keep it together long enough to dial it in ; ) You're cursed, if you aren't burning shit down you got wild life kicking you and your shit over sideways. 2 Quote
sheerider11 Posted June 29, 2014 Author Report Posted June 29, 2014 Like on those filters tyler, if you put 6-8 inch would you notice? Why did you get those filters? Quote
shanYE west Posted June 29, 2014 Report Posted June 29, 2014 Tyler obviously suffers from "lil man syndrome". After you meet him.. you'll understand why he lives by the "bigger is better" theory. 1 Quote
locogato11283 Posted June 29, 2014 Report Posted June 29, 2014 Like on those filters tyler, if you put 6-8 inch would you notice? Why did you get those filters? Because that's what my builder says to use. Quote
WINDYCITYJOHN400 Posted June 29, 2014 Report Posted June 29, 2014 Like on those filters tyler, if you put 6-8 inch would you notice? Why did you get those filters? You wanna know if running a 6" pod on a 20mill DM will make a difference? Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.