Help Needed - F3 Air Intake Modification

[Haze]

2016 F3T. It has a Cat Delete and K&N air filter. It has a burble when closing the throttle on deceleration.

Has anyone modified the intake system to get more cold air into the system?

What did you do??? Pictures???

 

[troop]

The only mod I know of is drilling (2) 1” holes on the air filter cover, like what Monster does with their stage 2 flash. This was on my past F3S with PV3 custom tune. 1" plastic hole plugs pop right in. However, the Spyder will pop like crazy on decel with stock ecu tune.

 

[Snowbelt Spyder]

2016 F3T. It has a Cat Delete and K&N air filter. It has a burble when closing the throttle on deceleration.

Has anyone modified the intake system to get more cold air into the system?

What did you do??? Pictures???

A burble. So what? And please don’t say that this means it’s running lean. It’s not. If it was, you’d get the code. There’s no carburetors anymore. That’s in the past. The ECM automatically controls the AFR. Train yourselves up on Closed Loop and Open Loop operation. You're in Closed Loop at this point. Here, courtesy of AI:

Here's how closed-loop fuel injection works:

Fuel calculation

The Electronic Control Unit (ECU) calculates how much fuel the engine needs based on programmed fuel tables and sensor input.

Air/fuel ratio comparison

The ECU compares the target air/fuel ratio to the actual ratio measured by the O2 sensor.

Fuel adjustment

If the ratios don't match, the ECU adds or subtracts fuel to equalize them.

It’s all automatic. The ECM will correct before you can blink twice. If there was a problem, you’d get the code. I bet that you can simply hear the sound better because of the cat delete. But, if you REALLY want to drill holes in your intake plenum, it’s your machine.

 

[Haze]

Thank You to the respondents.
I was worried about running lean.
I now understand the action of the ECU and feel relaxed with the burble...
No codes and no worries.

Cheers David C.

 

[Lew L]

.

Hi Dave,
Did you get the answer you needed? My solution probably won't work for you as the intake tube is different on the RT. I'm going to look on a parts page to see what the intake snorkel looks like on your ryde.

I looked on the parts diagram, found your intake, and it looks like the end that doesn't attach to the air box attaches to " something". IDK what, but it might be baffled somehow. I removed the baffle and opened the intake on mine, but IDK how yours is configured. I'd try to find where the air comes into the system (hopefully from the front of your F3T).

Lew L

 

[Cobranut]

The only mod I know of is drilling (2) 1” holes on the air filter cover, like what Monster does with their stage 2 flash. This was on my past F3S with PV3 custom tune. 1" plastic hole plugs pop right in. However, the Spyder will pop like crazy on decel with stock ecu tune.

Wouldn't drilling holes there let more hot air into the airbox?
And most filters flow from the outside in, so that would let unfiltered air bypass the filter.

 

[troop]

Wouldn't drilling holes there let more hot air into the airbox?
And most filters flow from the outside in, so that would let unfiltered air bypass the filter.

1.) That has been debated in the past.
2.) No. The bottom of the air filter is seated into the chamber.

 

[ulflyer]

My 16 F3 was totally standard and it had the "burble" as well. I recall others saying the same. Personally I liked the sound of it.