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..
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.
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.
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!
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.
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:
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.
if you put pods direct onto the throttle bodies you do two things.
1/ you remove the bellmouth shape from the air entry.
2/ you shorten the air inlet.
both of these will hurt these motors power wise. the cali cycleworks big tank kit makes no difference to power or mixture ime, even though it does totally remove the airbox. but it does give you the convenience of a heap more fuel.
fitting a set of flash bellmouths from wasp or corse dynamics, etc, will make more power when they're in the ends of the original rubber tubes. but a typical pod straight on the throttle body won't.
i can't believe you think drilling holes that far from the air inlets is going to make any difference at all.
The link below uses an XR1200 to demonstrate that shorter air inlets increases peak power and longer inlet increases peak torque and shifts it toward lower RPMs.
I thought split FCRs are popular among our race-spec bikes because of the overall shortened inlet tract + blue velocity stacks (short) which increases peak power, and racked FCRs maintain the long, OEM runner length thus providing more torque which is useful for road riding.
Well, there ya go. If it makes any difference it won’t be much. I contend you agreed with me even though you didn’t want to. I didn’t put the pods on, he did. I was just saying that since there were pods there already you weren’t doing any harm letting a little cooler air in under the tank. May improve air circulation under there.
not sure what you're talking about (maybe i didn't read all the posts), but, sure. i was wondering if this was just a troll question to start with, especially after he said he has pods. holes up there ain't gunna make 3/8's of fuck all difference to air availability under the tank.
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