Pros and Cons on Pod Filters for Carbed Monsters

[koko64]

Oups sorry I was in the bathroom when whrote that  

Ok while we're on the subject, here is a test to demonstrate how to increase air flow via an open airbox. When in the bathroom, turn on the exhaust fan and leave the door shut, then with the exhaust fan still on open the door,... notice the speed of the fan increase? Notice too that there is a point where the fan is no longer affected as the door is opened wider. At that point the "port/s" can no longer accommodate the volume of air available.
You are so cute when you post things like that.
   

[Dellikose]

This thread went in a different direction...

Brad - that link to the blog is giving me an error about not having access. Is there another way to read your post?

[koko64]

Sorry buddy, couldn't resist.
The link didn't work for me either, wouldn't mind seeing it..

[brad black]

http://bradthebikeboy.blogspot.com.au/2013/07/mounting-pod-filters-on-ducati-4v-intake.html

i had more in my head to type, but no time.

[koko64]

Im not sure who mentioned it in an old thread, but the idea of carbon shrouds to shield the pods from cross winds and turbulance was mentioned. The idea that pods may run ok on the dyno but not as well at high speeds came up. I guess that's a similar concept to running pods in an airbox.

[koko64]

I'm overhauling my bike and my first choice was Pod's but after
speeking to some "specialist" mecanical enginers and some AMA  ex-racer's
  I'va change my mind .

A ram air whit the air box sound more logical ....

Increassing the air pressure in the air box and the carb "eating cold air" from the front of the bike where the selling point for me.

I'm also porting (38mm to 40.5mm) ,  re-jetting and polishing(maybe) the carb to reduce vortex......  just to make sure .. lol

Being serious now, it would be great to see what you do with the airbox and carburetor  modifications. That would be a great topic  in itself.

[koko64]

"i had more in my head to type, but no time."


I can come by the shop sometime and you can share your thoughts in person. We haven't done that in awhile.

[Rudemouthsky]

"i had more in my head to type, but no time."


I can come by the shop sometime and you can share your thoughts in person. We haven't done that in awhile.

I want the transcript of that conversation

[brad black]

how about these:

http://cosentino-engineering.myshopify.com/products/ktm-950-billet-velocity-stack

[koko64]

Look great. Look like Beast stacks for carbs.
Wonder if they fit tandem carbs?

[Rudemouthsky]

how about these:

http://cosentino-engineering.myshopify.com/products/ktm-950-billet-velocity-stack

So damn expensive though...would be worth it if they worked. Those filters would get squashed down pretty good. I've been wondering if that's part of the problem, the decreased surface area where the filters are squashed against the bottom of the tank?

[koko64]

One way to do it would be to get two disc/spacers machined and drilled which go on first and then use the blue stacks on top. The bolts (need longer), go through, then clamp the pods to the discs.The filters of your choice, matching the diameter of the discs/spacers allow for the filter clamps and you got the blueys there under the filters. On a long manifold motor I would run the spacers as short as possible (the width of the clamps or say 10mm) and have the blueys in as big a set of pods that will fit tandem.

Your guy could do them.

[Rudemouthsky]

One way to do it would be to get two disc/spacers machined and drilled which go on first and then use the blue stacks on top. The bolts (need longer), go through, then clamp the pods to the discs.The filters of your choice, matching the diameter of the discs/spacers allow for the filter clamps and you got the blueys there under the filters. On a long manifold motor I would run the spacers as short as possible (the width of the clamps or say 10mm) and have the blueys in as big a set of pods that will fit tandem.

Your guy could do them.

I have the plastic K&N adapters Brad suggested awhile back now, and the pods clamped directly to those. If the blue stacks fit on those, it seems that would achieve the same thing you're describing?

My guy? I don't know any machinists, and the dude who helped me do my first swap is never laying hands on my bike again.... I would pay for the TPO Beast kit or the sexy one Brad just posted if I thought it would make a significant improvement, but I've always been under the impression that velocity stacks for our motors were only beneficial for protecting the jets...Chris Kelley seems to feel they are unnecessary, or at least that was always my impression. Then again he also strongly advises against pods in the first place. I still like your idea of carbon fiber "shrouds" around the pods.

Bet I could have a machinist make me one of those kits for wayyyy less $$...

[koko64]

Those K&N adaptors will do the same thing, so you are ok. It's the internal shape that counts.

Yeah getting the spacers made to use the blue stacks would be cool to let you use a custom pod of your choice. The diameter of the spacer can be machined to suit the the pod flange ID for your application.

I wiil be running TM38 flatslides on short manifolds on my E750 which looks like a reality now .

[koko64]

I have the plastic K&N adapters Brad suggested awhile back now, and the pods clamped directly to those. If the blue stacks fit on those, it seems that would achieve the same thing you're describing?

My guy? I don't know any machinists, and the dude who helped me do my first swap is never laying hands on my bike again.... I would pay for the TPO Beast kit or the sexy one Brad just posted if I thought it would make a significant improvement, but I've always been under the impression that velocity stacks for our motors were only beneficial for protecting the jets...Chris Kelley seems to feel they are unnecessary, or at least that was always my impression. Then again he also strongly advises against pods in the first place. I still like your idea of carbon fiber "shrouds" around the pods.

Bet I could have a machinist make me one of those kits for wayyyy less $$...

The carbon shrouds may have been mentioned by speeddog or duckstew iirc in a pods thread years ago now. The effects of cross winds, turbulence etc came up iirc.

Yeah, getting a machinist to make 'em to suit the best pod size for your carb and tank set up would be good.