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Discussion Starter #1
Hey guys,

I was just giving my Hyper 1100 a good clean and noticed a large and smaller hole in the plastic headlight mount.



The larger hole lines up directly with the upper cut-outs in the front fender. I'm assuming for airflow.



I was wondering if you think it would be a good idea to drill a similar sized hole on the other side of the headlight mount in this general area. In order to line up with the other fender cut-out.





I wouldn't expect to feel any difference HP gains (I wish lol) but perhaps it would be better for cooling purposes? But I'm wondering why Ducati didn't cut a hole on the other side as well? I've heard of turbulent airflow and how it could negatively affect performance? Not sure...maybe because the ECU and most of the wiring is on the right side??

I'm not sure what to think...wondering if anyone else has drilled a couple more holes or maybe it's not even worth the hassle? Let me know what you think..
 

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Due to the size of that hole I’m going to say it has nothing to do with the air intake for the air box. That would be like trying to breathe through a straw.
 

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Discussion Starter #7
pull the tank off and have a look at the airbox - your little hole is somewhat irrelevant.

you need a much bigger drill to help it too.

I don't have an airbox...running Velocity Stacks with K&Ns. Hmm...makes me wonder what that hole is for then? I was thinking airflow because it lines up perfectly with the Vents in the front fender.
 

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Is it a headlight aiming screw access?

t_bare
 

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Old Fast Guy
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Yes, that was the previous location for air temp sensor. Not there in newer models.
 

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Discussion Starter #13
So with pods you might be able to open that up for air flow.
That's what I was originally thinking....it could only help get more air into the engine.


Thinking about drilling a 1/2 inch hole on the other side. Hmmm...Maybe even bigger or a couple of holes...





Unless someone can think of a negative side effect in doing so.
 

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Keep in mind more air without proper fuel = lean and than = less power and potential problems. I just had a multistrada 1000 on the dyno someone had skeletonized the airbox lid, it made lots more intake noise but if anything lost power as on the dyno it was too lean. If all you care about is noise then open it up and keep an eye out for lean driveability issues. If there are none you should be okay but it will be safest to get it checked on a air fuel meter.

I have a couple customers with california cycle works tanks and they both run pod filters, same thing no more power than the hypers with the airbox. Tuning the ecu (which none of them have done) might show benefits but without doing it who knows.
 

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Discussion Starter #17
Keep in mind more air without proper fuel = lean and than = less power and potential problems. I just had a multistrada 1000 on the dyno someone had skeletonized the airbox lid, it made lots more intake noise but if anything lost power as on the dyno it was too lean. If all you care about is noise then open it up and keep an eye out for lean driveability issues. If there are none you should be okay but it will be safest to get it checked on a air fuel meter.

I have a couple customers with california cycle works tanks and they both run pod filters, same thing no more power than the hypers with the airbox. Tuning the ecu (which none of them have done) might show benefits but without doing it who knows.
Great point! I'm not going to go crazy with it. I think my hyper is running a tad too rich if anything. Gonna just drill a 1/2 diameter hole so air can get through to match the other side. Highly doubt I'd feel any power gains although It'd be nice ;)....just the peace of mind of cooling the engine as best I can. I appreciate your thoughts!
 

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Doesn’t the ecu on these things have any “learning “ ability at all ? Seems like if you’re already running pods and air is basically coming into them from all around some holes in the front wouldn’t be a major change, just maybe a little cooler than air coming up from the engine . The ecu should make up for the slightly cooler air just like it would on a cool morning.
 

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AFR is "king" to performance and fuel usage and what you select in the mapping will be driven by what you want to achieve.

IMO drilling that small extra hole is not going to do anything to air getting into the engine.
As Ducvet posted more air without more fuel = less power and potential problems.

If there is a sensor and it is Narrowband, as opposed to Wideband, if the ECU does "learn", then it will only be learning for the TP and RPM zones for Stoich as detected by the on/off nature of a Narrowband sensor.

Away from those zones, Stoich is not the way to fuel/run a bike.

Stoich is "merely" the ideal situation where fuel and oxygen burn process is exactly matched. I.e. all fuel and all oxygen are consumed perfectly.
That is not a recipe for the real world.

The attachment is from UKSteve and is only attached to show how AFR varies, not to start a debate on AFR for various TP and RPM breakpoints.:laugh:
 

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Then how do two Ducatis , one sold in the mountains, the other at the sea shore, manage to run well ? There is some flexibility built in. If you’re already running pods, you already have air coming to them from all around the pod, similar to running no lid. Filtration area is static. A path for a little cooler air that doesn’t get heated going past the engine is not a major change, a few degrees if you’re lucky. I’m not buying it.
 
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