New Alternative to Turbo - KTM Duke 390 Forum
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post #1 of 28 Old 11-28-2016, 09:20 PM Thread Starter
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New Alternative to Turbo

For those who are focussed on extracting every possible bit of power from the 390 engine, here is a new concept that might be less expensive and more practical than a turbo. It bears watching.

Bolt-on drum charger boosts motorcycle power and torque up to 25% - at a fraction of the cost of a turbo
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Cheers, Will

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post #2 of 28 Old 11-28-2016, 09:24 PM
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Interesting concept - makes sense.

2016 Duke 390 - Lowered 45mm F&R with T-Rex Racing link and kickstand, YSS MZ506 shock, RC390 fork springs & custom spacers, DynoJet quickshifter and PCV, Gray Area KTM airbox, open lid, inverted K&N filter, Werkes pipe, TYGA header, 16T sprocket, 320mm Galfer rotor and HH pads, XHP50 LED headlight, Vizi-tec SupaBrake II, Renthal grips with HeatDemon heaters, lever guards, Ride It Moto levers, eBay sliders, rear spools and rearsets, DIY tail tidy, HD radiator, F&R shock guards, OBD2 dongle
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post #3 of 28 Old 11-28-2016, 11:34 PM
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Looks funky but cool! Looking forward to this coming to market.
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post #4 of 28 Old 11-29-2016, 12:12 AM
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Rato

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post #5 of 28 Old 11-29-2016, 12:48 AM
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Very interesting find.
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post #6 of 28 Old 11-29-2016, 02:52 AM
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Well ,well ... just when I thought thatI had done modding my little Duke .. trust @Diploman to find something to tease me with . Ok , let's find out where we could buy that setup and give it a try .
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post #7 of 28 Old 11-29-2016, 04:36 PM Thread Starter
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Alter Ego's website is a fascinating compendium of innovative moto technologies, both concepts and actual hardware. Most of it - the rotary-valve cylinders excepted - seems eminently feasible and practical. I commend their focus on simplicity, efficiency and low cost. I hope some of their ideas will soon appear in mainstream production.


Alterego Hardware
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Cheers, Will

"If you don't know where you're going, you might wind up somewhere else."
--Yogi Berra

2015 390 Duke
1980 Moto Guzzi V50 II cafe racer
1984 Moto Guzzi SP 1000
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post #8 of 28 Old 11-30-2016, 02:57 AM
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I have sent them a mail asking for some more info , let's hope they reply .
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post #9 of 28 Old 11-30-2016, 06:18 AM
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Got a reply of them :

Dear Yves,

Bear in mind that the Drum Charger technology has been developed having the OEM applications in mind, because optimal integration of the system can be achieved only by devising it from the onset.

Anyway, the response at last EICMA has been so enthusiastic to convince us to seriously think about a possible kit application, to be sold aftermarket. The kit will likely address some specific models (small capacity engines), as the Drum Charger can be in principle be applied to any engine, but needs dedicated piping both on the intake and the exhaust side.

We could be more precise about the models to be fitted and the pricing in the first months of 2017. The KTM 390 engine will certainly be among the first. All information about the system and the available versions will be posted on our website alterego-hardware.com

Thank you for your interest!

The AEH staff
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post #10 of 28 Old 11-30-2016, 07:41 AM Thread Starter
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Yves, I think this is a really interesting bit of new technology that could work well on the 390 engine. When/if their kit for the Duke/RC is available, this will be another opportunity for you to advance the state of the art for our little bikes. If it is successful for you, I - and likely others here - would seriously consider the same mod. We are fortunate to have you as our adventurous trail-blazer!

Cheers, Will

"If you don't know where you're going, you might wind up somewhere else."
--Yogi Berra

2015 390 Duke
1980 Moto Guzzi V50 II cafe racer
1984 Moto Guzzi SP 1000
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