what am i looking at here?

[misterprofessionality]

it's probably something anybody who knows jack bout engines would recognize, but that ain't me. what is this in the picture i've marked?

 

[Cormanus]

Do you mean the hole about the size of a US quarter?

 

[misterprofessionality]

it looks a lot bigger than a quarter. on a standard cb1100 there's a plastic cover there, and behind that i guess is the air intake? but what this guy has there looks completely different, and the cover is gone. what is that he has installed?

 

[Cormanus]

OK you’re looking at something else. He’s taken the Honda air filter off, along with it’s cover and replaced it with individual filters for each intake. At least I think that’s what you call the fittings.

 

[misterprofessionality]

right, but what *am* I looking at? lol.

 

[Cormanus]

Return to edited post what am i looking at here?

 

[redbirds_imp]

That's not a hole but a reflection on the throttle body.

 

[Frulk_imp]

Since the trophy sitting next to the bike says "Rats Hole" on it I'd surmise that you're looking at the Best of Show Rats Hole.

 

[misterprofessionality]

Return to edited post what am i looking at here?

ah, i gotcha. so it's not a different part, just something's been added. what does that do for him? what effect does it have on the performance?

 

[Cormanus]

We will have to await the input of someone—unlike us—who knows something about engines. You can assume it’s designed to make you go faster!

 

[SportsterDoc]

If the question is about the individual pod filters, this thread may be of interest:

Air Filters

 

[Aussieflyer]

Return to edited post what am i looking at here?

ah, i gotcha. so it's not a different part, just something's been added. what does that do for him? what effect does it have on the performance?

ah, i gotcha. so it's not a different part, just something's been added. what does that do for him? what effect does it have on the performance?
The resolution of the image is not so good but I think your pointing to the round shiny section of the throttle body. It's usually a dull silver component installed as a seal. Lots of folks glue in a shiny coin to dress it up a little. The engine looks quite different because of the modification mentioned by Cormanus, removal of the standard air box and four individual filters fitted in its place ... way cool IMO.

 

[SportsterDoc]

The advantage of pods is an open look.
4 pods may actually be slightly less $ than a factory air box filter.
There could be an air flow advantage on some bikes, but I am skeptical of that on the CB1100.

 

[Ferrealls_imp]

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

 

[misterprofessionality]

The advantage of pods is an open look.
4 pods may actually be slightly less $ than a factory air box filter.
There could be an air flow advantage on some bikes, but I am skeptical of that on the CB1100.

according to the thread that was posted above, it looks like it won't actually have any performance increase, but changing the throttle body instead might have more of an effect. am i wrong?

 

[SportsterDoc]

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

O2 sensor(s) are exhaust mounted
Circled area is throttle position sensor

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

On many engines, yes.
On the CB1100, very little difference.
I cut off the top of the "funnel" on my CB: no appreciable difference other than I like the intake sound. My 2012 Triumph benefitted significantly with snorkle removal.

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

Mine runs fine with an opened intake

The advantage of pods is an open look.
4 pods may actually be slightly less $ than a factory air box filter.
There could be an air flow advantage on some bikes, but I am skeptical of that on the CB1100.

according to the thread that was posted above, it looks like it won't actually have any performance increase, but changing the throttle body instead might have more of an effect. am i wrong?

Stock throttle bodies have more than enough CFM capability.
Not much power to be gained on the 1140 motor with stock cams, AFAIK

 

[misterprofessionality]

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

O2 sensor(s) are exhaust mounted
Circled area is throttle position sensor

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

On many engines, yes.
On the CB1100, very little difference.
I cut off the top of the "funnel" on my CB: no appreciable difference other than I like the intake sound. My 2012 Triumph benefitted significantly with snorkle removal.

The silver cap on the throttle body looks like it covers a location where an O2 sensor used to be.

The benefit of this installation is that it removes all pressure losses across snorkel, air cleaner and funnels. It breathes much better. It would a custom fuel map to run correctly. Likely you'd want to use an autotuner, so you'd install an O2 sensor with that setup, maybe the reason why that one is missing.

Mine runs fine with an opened intake

The advantage of pods is an open look.
4 pods may actually be slightly less $ than a factory air box filter.
There could be an air flow advantage on some bikes, but I am skeptical of that on the CB1100.

according to the thread that was posted above, it looks like it won't actually have any performance increase, but changing the throttle body instead might have more of an effect. am i wrong?

Stock throttle bodies have more than enough CFM capability.
Not much power to be gained on the 1140 motor with stock cams, AFAIK

so the conclusion of my dumb post in the end is this: the owner of the bike in the picture did it because Farkle.

follow up: is there any way to improve air intake in a way that increases engine performance? (along side fuel computer adjustments and exhaust system upgrades)

 

[Cormanus]

MrPty, there’s really no such thing as a dumb question. I’ve learned something because you asked it.