Author Topic: Velocity Stacks vs. Pod Filters? (Read 6151 times)

jcop550 · « **on:** February 15, 2019, 05:27:29 PM »

Trying to decide between velocity stacks or pod filters for my cb550. Is one better than the other? Pros/cons? What are your opinions? Thanks

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slikwilli420 · « **Reply #1 on:** February 15, 2019, 05:32:33 PM »

Best bet is both. You need the stack to flow air properly and filtration to keep the crap out of your engine. I'm running stacks with Ram Air filters.

SohcCBs · « **Reply #2 on:** February 15, 2019, 05:44:05 PM »

I liked the pod filters at one time. Velocity stacks are only good if you only want to run at full throttle. Drag racing. If you like cornering or all around performance, the air-box is superior. It's important under many conditions to balance the intake air. Good filtering too.

slikwilli420 · « **Reply #3 on:** February 16, 2019, 05:03:51 AM »

Quote from: SohcCBs on February 15, 2019, 05:44:05 PM

I liked the pod filters at one time. Velocity stacks are only good if you only want to run at full throttle. Drag racing. If you like cornering or all around performance, the air-box is superior. It's important under many conditions to balance the intake air. Good filtering too.

You do realize that one of the reasons the stock box works so well is because it has velocity stacks in it right?

PeWe · « **Reply #4 on:** February 16, 2019, 06:31:14 AM »

Important detail that will help....
Racing /street with modified engine or a stock engine?
A stock engine will work better with stock filter. Much easier to jet the carbs.

jcop550 · « **Reply #5 on:** February 16, 2019, 07:12:43 AM »

Quote from: PeWe on February 16, 2019, 06:31:14 AM

Important detail that will help....
Racing /street with modified engine or a stock engine?
A stock engine will work better with stock filter. Much easier to jet the carbs.

I’m doing street riding with a stock engine. I can’t run a stock air filter anymore because I removed the frame tabs that mounted the stock filter(going for cafe racer build) so I’m between pods and stacks.

I re jetted the carbs for my 4-1 exhaust set up and I currently have pod filters. I like the clean look of velocity stacks though so I was trying to figure out what’s best.

Thanks for your input guys!

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SohcCBs · « **Reply #6 on:** February 16, 2019, 07:38:49 AM »

Go with the foam pods then, but the FYI, the stock filter is also a plenum. It would've worked better for your application. I used the foam pods...till I started tuning and riding with them, but they'll work better than stacks. You need a 4 to 1 header also, if you don't already have one. The cb550 can handle very well.

Gurp · « **Reply #7 on:** February 16, 2019, 08:08:22 AM »

Cognito moto makes a breadbox style breather that isbthe best of both worlds. Its worth a look.

DaveBarbier · « **Reply #8 on:** February 16, 2019, 08:28:08 AM »

If you have stacks are you ok with no filter?

Putting a screen inside does nothing except keep out large debris. Dust and sand will work it’s way in mainly from being kicked up by the back tire. If you put some sort of filter element in the bell mouth then it defeats the purpose of a stack which is laminar flow.

K&N pod filters have little bell mouth stacks inside the filter. UNI pod or EMGO pods do not.

But if it’s just for looks then the only winner is the pod filter because it has a... well, filter.

I was going to recommend the Cognito box but I was beaten to it!

BomberMann650 · « **Reply #9 on:** February 16, 2019, 01:56:05 PM »

Last I checked, the cognito box is only good for PD style carbs on 550's

Gurp · « **Reply #10 on:** February 16, 2019, 05:37:16 PM »

They have other fitment options now. So more than just PDs!!!

jcop550 · « **Reply #11 on:** February 16, 2019, 06:47:54 PM »

Quote from: slikwilli420 on February 15, 2019, 05:32:33 PM

Best bet is both. You need the stack to flow air properly and filtration to keep the crap out of your engine. I'm running stacks with Ram Air filters.

Do you have a pic of your set up

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seanbarney41 · « **Reply #12 on:** February 16, 2019, 07:28:38 PM »

looks looks looks...do you want to enjoy riding a good running motorcycle? or wheeze, spit, sputter and wobble your way to the nearest graffiti wall for instagram heroics?

jcop550 · « **Reply #13 on:** February 16, 2019, 07:38:08 PM »

Quote from: seanbarney41 on February 16, 2019, 07:28:38 PM

looks looks looks...do you want to enjoy riding a good running motorcycle? or wheeze, spit, sputter and wobble your way to the nearest graffiti wall for instagram heroics?

It’s possible to have both a good looking and good running bike. Yes you’re right I am going for looks but I’m also going for a good performing bike. Just trying to get some opinions on the different set ups and see what people say is best.

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Gurp · « **Reply #14 on:** February 16, 2019, 08:35:29 PM »

Been a few years but i remeber a product called the antipod being offered on the forum. That was another good looking part that filled what the OP is looking for.

dave500 · « **Reply #15 on:** February 16, 2019, 11:35:39 PM »

Quote from: seanbarney41 on February 16, 2019, 07:28:38 PM

looks looks looks...do you want to enjoy riding a good running motorcycle? or wheeze, spit, sputter and wobble your way to the nearest graffiti wall for instagram heroics?

just use the stock set up airbox and all.

PeWe · « **Reply #16 on:** February 16, 2019, 11:41:44 PM »

I'm sure that pods on a stock engine will work at full throttle. Different at take offs, low throttle lifts and transition between pilot circuit and needles which can be tricky to get right.

Too advanced ignition here can act as too lean carbs making you to jet too rich causing backfiring at throttle off that you will think is too lean and making it even worse.....

dave500 · « **Reply #17 on:** February 16, 2019, 11:54:12 PM »

who cares how it runs its gotta look good.

jcop550 · « **Reply #18 on:** February 17, 2019, 04:56:06 AM »

Quote from: dave500 on February 16, 2019, 11:35:39 PM

Quote from: seanbarney41 on February 16, 2019, 07:28:38 PM
looks looks looks...do you want to enjoy riding a good running motorcycle? or wheeze, spit, sputter and wobble your way to the nearest graffiti wall for instagram heroics?

just use the stock set up airbox and all.

I cant anymore, I shaved the tabs off the frame to get rid of the stock air box and the electrical that lies behind the side covers. I’m keeping that all open for a cafe racer style build

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Gurp · « **Reply #19 on:** February 17, 2019, 06:05:24 AM »

Jcop I've got a 74 550 with 73 carbs on it. Not sire the dimension difference but its just enough i couldnt get my airbox back in. I would always recommend pods over stacks for filtering but either way unless you're running a race bike you are going to notice it during street riding.
Still with products out there like the conito moto box and if they are still available the Antipod if you are willing to spend the money you can have the best of both worlds. I would search the forum for the antipod.

sixthwisconsin · « **Reply #20 on:** February 17, 2019, 08:52:16 AM »

TinTop built the Antipod filter. I tried one on my 74 550k and it really didn't fit with the side covers installed and I wanted to use them. It's also a very tight fit and will butt up against the down tubes. Its a great design with nice rubber stacks and an ITG filter. I use one on my 750f.

Heres the 550. I don't run it anymore.

Gurp · « **Reply #21 on:** February 17, 2019, 10:58:18 AM »

Six you interested in selling that 550 antipod? And does he still make them?

sixthwisconsin · « **Reply #22 on:** February 17, 2019, 12:01:59 PM »

P.m. on the way

slikwilli420 · « **Reply #23 on:** February 18, 2019, 09:51:54 AM »

Here is my setup on my race bike.

The stacks are from Weber DCOE 40 side draft carbs, cut down and with 3 small set screws. Never had an issue with the screws coming loose. For extra protection, I have Ram Air filters that fit over the bells and I just keep them slid back. Bike made 80hp at the wheel on 760cc, has nice throttle modulation (lumpy cam in there though) and Im in the setup for under $150.

Tracksnblades1 · « **Reply #24 on:** February 18, 2019, 02:31:09 PM »

Quote from: slikwilli420 on February 18, 2019, 09:51:54 AM

Here is my setup on my race bike.

The stacks are from Weber DCOE 40 side draft carbs, cut down and with 3 small set screws. Never had an issue with the screws coming loose. For extra protection, I have Ram Air filters that fit over the bells and I just keep them slid back. Bike made 80hp at the wheel on 760cc, has nice throttle modulation (lumpy cam in there though) and Im in the setup for under $150.

Silk,
Nice set up. Is this your round top carbs on F2 cylinder head set up?
Or, have I confused you with someone else..?
Have you deleted alternator and flywheel...? Idle speed..?

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Author Topic: Velocity Stacks vs. Pod Filters? (Read 6151 times)