Daylight running lights - do they restrict air flow

[AdzventureXR]

I was looking at front intake and found that with centre daylight module it covers alot of the intake area. Has anyone tried removing to see if there is a difference?

I would think removing it would kick a fault. Will have to try

With all the worries of air filters and ecu tuning, this seems to be a restriction.

Any thoughts? New gen 2 has a nice intake area.

[smithy]

Originally Posted by AdzventureXR

I was looking at front intake and found that with centre daylight module it covers alot of the intake area. Has anyone tried removing to see if there is a difference?

I would think removing it would kick a fault. Will have to try

With all the worries of air filters and ecu tuning, this seems to be a restriction.

Any thoughts? New gen 2 has a nice intake area.

Negligible. The area of the air intake with or without the DRL is greater than the combined area of the 4 accoustic inserts and pretty much the same without the inserts fitted. Unless you're doing in excess of 300kmh, (which the bike isn't even capable of), the ram air effect is a non-event.

Smithy.

[Antares]

I was actually thinking of removing it anyway just to replace it with a 3D printed grille with a more unique pattern that looks better, and maybe provides better airflow. Then again I don't have the DRL to care about.

[AdzventureXR]

Originally Posted by Antares

I was actually thinking of removing it anyway just to replace it with a 3D printed grille with a more unique pattern that looks better, and maybe provides better airflow. Then again I don't have the DRL to care about.

Another reason to get a 3d printer. Winter projects. Or just strip it down and go naked.

[AdzventureXR]

Originally Posted by smithy

Negligible. The area of the air intake with or without the DRL is greater than the combined area of the 4 accoustic inserts and pretty much the same without the inserts fitted. Unless you're doing in excess of 300kmh, (which the bike isn't even capable of), the ram air effect is a non-event.

Possibly the overall area is similar, but the direct shot at the frame opening is blocked.

I have yet to remove acoustics, that would probably be an additional option.

Smithy.

[Antares]

Originally Posted by AdzventureXR

Another reason to get a 3d printer. Winter projects. Or just strip it down and go naked.

Really not sure if it's an issue to just remove it, I think it'd look cool. It doesn't offer much in the way of protection/filtering anyway. Depends on whether there'll be tabs leftover that are visible without it in place ruining the looks, I can't recall exactly where those are.

[lospsi]

I've been running it for a while without the front grille (I don't have the DRL option) and I didn't noticed any differences but I haven't ripped it. I have left the acoustic inserts in place though.

[Antares]

Hmm, doesn't look bad but you have the carbon to show off. I think with a pair of the matt gecko LEDs it'd look sick but with no carbon and stock lights I'm tempted to make a hexagonal grille for it, there is a nice area for the grille to rest on to take some strain off the clips and make it flush on the front. I might experiment with it a little just out of curiosity, I'm afraid it'll be a pain in the ass tho just cos taking that fairing off is not exactly quick...

[Salem]

I don't think it makes any difference. Take a flashlight, the actual bottleneck is where the air goes around the steering stem into the airfilter.. But you can roughly calculate it too, 6000rpm 1st gear, 60kph as example:

At 60kph in 1st, 6000rpm the engine needs around 50 liters of air per minute with throttle wide open

At 60kph a 100 cm2 frontal intake theoretically flows already 166 liters of air (I"m fairly sure the bottleneck is quite a bit smaller)

Theoretically that means a bit of boost, but the assy before the air filter is not airtight, 

[Antares]

Originally Posted by Salem

I don't think it makes any difference. Take a flashlight, the actual bottleneck is where the air goes around the steering stem into the airfilter.. But you can roughly calculate it too, 6000rpm 1st gear, 60kph as example:

At 60kph in 1st, 6000rpm the engine needs around 50 liters of air per minute with throttle wide open

At 60kph a 100 cm2 frontal intake theoretically flows already 166 liters of air (I"m fairly sure the bottleneck is quite a bit smaller)

Theoretically that means a bit of boost, but the assy before the air filter is not airtight,

It is grasping at straws looking for performance here. The acoustic insert is way more of a restriction and that with a specific tune still only gains 1-2 bhp at peak rpm.