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Author Topic: Cheap 'Pod' filters - why you shouldn't - Public service posting  (Read 48381 times)

Offline kopcicle

  • Posts: 708
  • antidisestablishmentarian
I don't have pics so follow along as best you can .

Remember the cheap assed aluminum cup/tumbler , anodized wtfever? Nasco...
Now they are only found in junk stores and such after the whole light metal leads to dementia deal.
These had a taper and diameter that lent them easily to budget velocity stacks .
Trim to length , slit to fit , insert into filter about half the distance to the back of filter and tighten down with a single clamp for both .


~kop
"If a man wants to carry two cats home by their tails, by all means let him. Heíll learn things that he might not have otherwise even guessed, and the experience will be one heíll not soon forget!"

~S. Clemens

If it leaks after all this? I'm gonna pull a "Brad" and bulldoze the fucker!

Quote from: Scruffy;1025553
As an equal opportunity bigot, I'll insult any brand, any style, any time...:wink:
-Scruffy

http://tinyurl.com/TheRedBike

Redliner: me? But I'm not a little girl any more
Nov 13, 2013, 19:20:58

Offline crazypj

  • Posts: 12487
  • Split personality, I fake being smart
Them's quite neat, never seen any around though,
Here's a CB378 F/A printout showing why the CV carbs need some work when you junk stock airbox
It had 110 secondary mains and no other modifications, smaller and it was so lean  it would barely run
Ignore the numbers on bottom, it was from 2,800 to 9,500 rpm.
The transition when slides start to lift is real obvious (hits dotted line , max performance F/A ratio then goes crazy rich)
 The run was done from less than 1/8 to instant full throttle
« Last Edit: Feb 06, 2013, 05:04:32 by crazypj »
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline jd400

  • Posts: 101
I never knew how restrictive some of the cheap pods could be, the only time I bought pods they were K&N's.

Offline crazypj

  • Posts: 12487
  • Split personality, I fake being smart
I don't class K&N the same as 'pods'
 Pods are cheap generic stuff that may or may not work, at least there is more information coming out about some alternatives

'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline teazer

  • DTT SUPPORTER
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  • Posts: 8201
Interesting chart PJ. I read it the wrong way round first thing this morning (pre coffee).  Really interesting how much the bypass holes affect things and the slide lifts much later than I would have expected. So do we need a TPS and slide lift sensor to jet these fool things now?

Could you use a smaller main jet and larger air jet to lift the curve overall and then tilt it flatter as revs rise?  Or would it benefit from a different needle/jet?

Offline crazypj

  • Posts: 12487
  • Split personality, I fake being smart
The slide isn't bottomed out, about 7~8mm up bore when 'closed'
It doesn't really lift until 4.5~5K
 Runs too lean with a smaller main-jet after I do modifications
It wasn't any better with various size main-jets before I did modifications, (105~120) had to think it through (a lot) then experiment some more.
I'm 99.9% certain I know whats happening, where and when  8)
I've found a way around it though, problem is I don't have access to Dyno with EGA  (at least, not at a price I can afford)
Different needle and jet would help but the only way to get them is make them (really don't have time and it's REAL difficult to make needles, I've tried  ;D )
The only way to really fix it is send me carbs or buy Mikuni's (but it's why I only 'do' CB350/360 carbs)
Pretty sure CB450/500T will respond the same?
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline kopcicle

  • Posts: 708
  • antidisestablishmentarian
Is it really that hard to say individual air filters ?  :(

~kop
"If a man wants to carry two cats home by their tails, by all means let him. Heíll learn things that he might not have otherwise even guessed, and the experience will be one heíll not soon forget!"

~S. Clemens

If it leaks after all this? I'm gonna pull a "Brad" and bulldoze the fucker!

Quote from: Scruffy;1025553
As an equal opportunity bigot, I'll insult any brand, any style, any time...:wink:
-Scruffy

http://tinyurl.com/TheRedBike

Redliner: me? But I'm not a little girl any more
Nov 13, 2013, 19:20:58

Offline crazypj

  • Posts: 12487
  • Split personality, I fake being smart
K&N is less typing  ;D
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline kopcicle

  • Posts: 708
  • antidisestablishmentarian
K&N is less typing  ;D

and UNI's actually do a better job of keeping the crud out

~kop
"If a man wants to carry two cats home by their tails, by all means let him. Heíll learn things that he might not have otherwise even guessed, and the experience will be one heíll not soon forget!"

~S. Clemens

If it leaks after all this? I'm gonna pull a "Brad" and bulldoze the fucker!

Quote from: Scruffy;1025553
As an equal opportunity bigot, I'll insult any brand, any style, any time...:wink:
-Scruffy

http://tinyurl.com/TheRedBike

Redliner: me? But I'm not a little girl any more
Nov 13, 2013, 19:20:58

Offline crazypj

  • Posts: 12487
  • Split personality, I fake being smart
Yep, but they only last 4~5 yrs, The K&N's I have on 378 motor were on a GPZ900 in the 80's  ;D (I originally thought 90's, but realised I was working on different stuff and riding different bike  :o )
I just have the wrong attitude, I buy bikes with the intention of selling them, but, re-build them as I want then keep them until someone makes an offer I can't understand 
My sister says I have the uncanny ability to turn money into scrap
« Last Edit: Feb 06, 2013, 23:25:42 by crazypj »
'you can take my word for it or argue until you find out I'm right'
I gave my girlfriend an orgasm the other night, but, she spat it back at me
 Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry
 Itís not worth doing something unless someone, somewhere, would much rather you werenít doing it  (Terry Pratchett)
CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0