Pros and Cons on Pod Filters for Carbed Monsters

[memper]

Bunnyman, just use the search function. Tons of threads on the topic I'm sure.
Your carbs are constant velocity carbs, meaning they are happiest with an airbox. But tons of folks here have done pods (with some carb tweaking) and are satisfied with them.

[koko64]

I tested open airbox Vs pods, so try a search on that. The tests were with FCRs, but should give you an idea. Pm me and I can email some dyno charts.
If getting every bit of available power isnt your goal, then pods make servicing easier, drop some weight, look real old school and let more cooling air through to the rear cylinder.
I prefer tuned airboxes, but would consider pods for certain applications where the best power wasn't everything.
I found pods bloody loud however, but if you're a young turk and dont care then why not, (I must be getting old). Motowheels has an alloy battery box available that lets you run pods and fit your ignition components easily.
I found pods wanted a little less fuel in the midrange and top end on my modified M900. I have no experience with pods and CV carbs.
Let us know how you go.

[The Mad King Pepe']

If you go with pods, KEEP the rubber intakes/stacks/hoses/things that go between carbs and airbox: they smooth out the airflow into the carbs and help power & torque.

[Rudemouthsky]

I have this mod. (Pods-carbed Monster)

- never a problem in the rain nor have I ever heard of others having issues.

- +1 on cool factor

- +1 on complications with tuning. The general consensus seems to be that your best case scenario will be sacrificing a few (2-5) HP.

- Disagree completely on this subject being beat to death. Lots of folks desire this mod and the jury is still out on the best way to tune it so it works well. The more discussion on this subject the better.

- Talking briefly to Mark Sutton he recommended I try an open top style of pod filter. Google K&N X-Stream

I'm going to bite the bullet and pay an experienced tuner like Mark to tune my FCR's and PODS with a Dyno and report the results. There's just too many variables at play...atmospheric conditions, other mods etc. People seem to either bolt on FCR's with pods and go, loving it...or are just endlessly frustrated like me. Doesn't help that I'm not mechanically gifted like so many others on the Forum like Koko and Brad.

[ducpainter]

Cold air is denser than warm air.

Better re-do your calculations.

[dufukincati]

I'm wandering......

A airbox would seam better at blocking the heat from the motor since
 high temparature in the carb can make work less effecently since hot air is more dense

I'm thinking about creating a "ram air" so it would force air into the airbox.
It would increasse air pressure in the air box acting like a supercharger.

I'm thinking about profiling my needle to reduce the air vortex in the  carb .
And rejet the carb completly
 
Less vortex= better air flo= increase performance

Pods look cool but some serious is needed to the carb

If pilot jet, needle jet, main jet, pilot srcew ... are confusing therms...forget pods
 

Thats just me thinking.

Airbox Ram by Riding House of Japan

[memper]

....
I'm going to bite the bullet and pay an experienced tuner like Mark to tune my FCR's and PODS with a Dyno and report the results. There's just too many variables at play...atmospheric conditions, other mods etc. People seem to either bolt on FCR's with pods and go, loving it...or are just endlessly frustrated like me. Doesn't help that I'm not mechanically gifted like so many others on the Forum like Koko and Brad.

While time and frustration are certainly a factor, anything Brad and Koko know can be learned. Even the black magic stuff, lol. However I'm sure things must be a ton easier with a dyno at ones disposal.

[Dellikose]

Airbox Ram by Riding House of Japan

This is pretty cool. Kind of like the snorkels but in a better spot for air flow.

[koko64]

There's a lot of good points in this thread.

My 2 cents..

- I wouldn't describe pods as a great performance mod but they can provide practical      solutions. An example would be running split FCR carbs on short manifolds like the MBP motors that make over 100hp from an air cooled desmodue. Either that or build your own custom airbox.

- Pods make servicing and tuning carbs so much easier.

- According to CCW dyno charts, the RU1750 pods flow enough to support over 100 hp, it's just that a good airbox would be better. I say good airbox because I don't think the oem carbed airbox is very good in stock form; it's better than pods, but not that much better. I did some tests years ago that showed about a 2hp difference and better power curve with an open airbox. There's a thread somewhere.. A modified, enlarged airbox made another 5hp again on a ported motor that could use it.

- Dynos are great tools in the right hands. The dyno shop I use has an older guy and young new tech. Guess who I ask to test the carbed bikes! The older guy grew up on carbed bikes.

- People like Brad are highly gifted, professionally trained, qualified techs, who are scientifically curious and persistent.  For the record I'm just curious and persistent. So it's true that people can do much of their own work. This community has so many gifted members I have learned so much from. It's just whether you have the time and inclination. I have a customer who can fix broken oil rigs, but cant tune his carbs or set his suspension even with great effort and he's a genius. Some people are just too busy being great at something else.

- Finding a good dyno guy is a beautiful thing. It's good to have an instrument that lets you check your work (and saves so much time make the beast with two backsing around in the wrong direction).

- Nothing totally replaces road testing and having a feel for how a motor runs imo.

[memper]

Koko, I bet that older guy could probably do it all by ear and get it close to spot on.

[koko64]

He is younger than me, but grew up racing dirt bikes with flatslide carbs before taking up road racing iirc. I could hear him open the throttle differently to the young guy and wanted the test to be run the same for more comparable data. He said the young fella, "didn't know how to ride a carburettor".
I knew a mechanic ten years older than me, from whom I learned much; he could tune by ear.

[brad black]

i don't know how you tune anything by ear, personally.

there's a few points around this subject that i like to separate.

if you want a look, like some of the non normal exhausts (exbox), then the look may involve compromises.  like the current cafe racer scene, where dudes go on about not wanting to lose any of the minimal performance their 70's shitbox never had, while trying to make it look "right" on the budget of crap pods and mufflers.  if you want the look, then you get what you get.  that's just how it is.  embrace or retreat.

this is my take on a good use of pods: http://bradthebikeboy.blogspot.com.au/2013/07/mounting-pod-filters-on-ducati-4v-intake.html

pods inside an airbox, with trumpets inside them.

[ducatigirl100]

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

[ducatigirl100]

Cold air is denser than warm air.

Better re-do your calculations.

Oups sorry   I ment the opposite ...  I normaly speak french .  and I was in the bathroom when whrote that  

[koko64]