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Recent Transplant
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2,664 Posts
Discussion Starter · #1 ·
Hey, I tried searching for info on this but didn't come up with much. I want to scrap my stock airbox and just run pod filters (either 1 small cone for each, long oval for all 4, or 2 short ovals for 2 carbs each would work), and I know I would have to jet my carbs to compensate.

What filters would you recommend as far as cheap/easy/decent quality goes? Also, what jet kit would work for this swap? I'm hoping this will open up some room under the tank for electronics, as well as hopefully smoothing out my A/F issues at speed, not to mention a little extra kick at the top end.

I don't know anything about this, edumacate me! Thanks! :knucks:
 

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the mad doctor
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3,399 Posts
stage 3 jetting with pods can be a headache to perfect, just warning you now!! your bike will become ALOT more affected by air temp and humidity outside.

you lose some intake velocity by opening up the intakes so much with pods, and you'll lose some low rpm power. at WFO though, it'll SCREAM.

if you're gonna run pods, you have to run stage 3 jetting. that's WAY up on the main jets, possibly up on the pilot (low speed) jets, playing with mixture screws, and changing/playing with needles, and probably adjusting float hieght.

do yourself a favor and get a stage 3 kit from factorypro. dynojet makes them too, but thier needles SUCK, and make tuning more difficult.
 

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Recent Transplant
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2,664 Posts
Discussion Starter · #4 ·
Yeah I knew I'd lose low end po', havent really made up my mind on that yet, but I do want to open up some space and make it less of a pain in the ass to work on anything under the tank.
 

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the mad doctor
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3,399 Posts
it'll definately give you more room.

once you get the jetting tuned right, it's very streetable, just be prepared to have the carbs off about a dozen times to get everything locked down.
 

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Function IS Form
19 Z900, 88 Kat11
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17,434 Posts
A little bit of mechanic's mojo is needed to get the bike to run perfect. I'd expect a flat spot just under the powerband no matter what you do.
 

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the mad doctor
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3,399 Posts
haelo said:
A little bit of mechanic's mojo is needed to get the bike to run perfect. I'd expect a flat spot just under the powerband no matter what you do.

yup. gotta change your riding style a bit and keep the motor in the revs.
 

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the mad doctor
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3,399 Posts
haelo said:
Pod filters with a custom pressure box :)

yeah man! i had a yosh setup like that for one of my old gsxr's back in the day. shit was da bomb!! :LolLolLolLol: :skrooz:
 

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Function IS Form
19 Z900, 88 Kat11
Joined
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17,434 Posts
My GS750 had one. At it went from 100-145 really fast
haha

then there was this brick wall called early 80's aero
 

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GURU
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445 Posts
Not to steal, but my gsxr750 (86) has pods and a jet kit and runs great but starts like hell and is funny till its warm. That is carb tuning right? I suck with carbs, basically, I know nothing.
 

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the Gixxer is BACK!
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1,425 Posts
my gixxer is finicky like that, try balancing your carbs. Mine used to run like crap until I balanced them, now she starts and idles perfect.

Pods and jetting may be a winter project for me, we'll have to see.
 

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the mad doctor
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3,399 Posts
Kpg2713 said:
Not to steal, but my gsxr750 (86) has pods and a jet kit and runs great but starts like hell and is funny till its warm. That is carb tuning right? I suck with carbs, basically, I know nothing.

yeah, my old '86 was the same way after the pods. lots of motors run like crap till they're warmed up, even newer bikes.

i generally don't reccomend pods to anyone that doesn't know thier way around a carb, at least to some degree. open pod filters make tuning more difficult, and they get VERY picky about the weather outside.
 

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Registered
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1,593 Posts
I run velocity stacks inside my pod filters to get back some intake velocity. I used K&N dual pods. the jets and needles were purchased individually over the kit. The kits for my bike are over $280, my way cost only $120. It runs perfect (the guy who helped me set it up has been fine tuning his for 2 years or so) In cool weather with lots of humidity it will not run so great, but this might be due to my carbs icing up, i plan on re-routing the carb coolant lines (that i bypassed) to see if it improves.
 

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the mad doctor
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3,399 Posts
ravenfz1 said:
I run velocity stacks inside my pod filters to get back some intake velocity. I used K&N dual pods. the jets and needles were purchased individually over the kit. The kits for my bike are over $280, my way cost only $120. It runs perfect (the guy who helped me set it up has been fine tuning his for 2 years or so) In cool weather with lots of humidity it will not run so great, but this might be due to my carbs icing up, i plan on re-routing the carb coolant lines (that i bypassed) to see if it improves.

good thing that bike has dual throttle cables. my 7/12 had carb icing probs in the cold weather, and only a single pull cable. t'was a bit scary at times when the butterflies froze open.
 

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skr00zloose said:
good thing that bike has dual throttle cables. my 7/12 had carb icing probs in the cold weather, and only a single pull cable. t'was a bit scary at times when the butterflies froze open.
it's only happened twice now in 1000 miles and only at WOT it would bog. After it happened both times I backed off and then it cleared out, what's that sound like to you?
 

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GURU
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445 Posts
So you guys think I should find a stock intake setup or what? I certainly do know enough (nearly anything) to be able to tune my carbs. Or do you think a shop should be able to tune em decent enough?
 
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