Ebooster for rotaries
 

Hi folks,

Recently I came across the Ebooster technology and I'm kind of amazed and impressed but also curious of the possibilities for the 13b

basically I'm wondering two scenarios:

a) use a Ebooster as a eletric supercharger (up to 7psi of boost), having a 48v battery on the trunk. Basically having a SC on demand, "madmax style"

b) build a proper dual charged engine with no lag and a joyful big turbo (more likely on a 13brew swap)

I know there is a lot to consider (specially $), fuel management et cetera, but I would like to hear some comments and ideias on how this new technologies could be used to improve our dear pistonless engines.

*https://youtu.be/AsxiPMhIAds

been discussed on here in various past threads i.e. search

but hate to burst your bubble, a rotary has a 1/3 higher airflow requirement than a piston engine coupled with firing every revolution than every other too, so generally a bust at the current technology level.
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On an FD with a giant turbo, maybe. On Renesis you can't use a turbo big enough for this to make sense, the engine is limited by the exhaust ports. We don't have the problem that this thing solves, and it adds a bunch of weight..

Sorry mate, but I honestly tried to search (forum/Google search) maybe I still need more practice with the searching tool. I understand rotaries cycle like a 2 stroke and need more air. However, some of the recent technologies are applied do relatively big piston engine (like new audis and MB), and altrough I need more research, I believe a 145a eletric motor powered by a 48v or even 72v battery can blow some air in, whe using an appropriate turbocharger.

I understand that, that's why I believe hypothesis A was a stretch, but the idea was something like the leaf blower from "might car mods". Anyway, I believe the exhaust ports become a problem when trying to rev higher with high boost, after all, 13b msp is a NA project, however a setup were you rev less and use a big turbo to generate power and a ebooster to kill the lag, that doesn't sound so bad theoretically.


Anyway, hypothesis B is more interesting, because I believe there is no space for twin turbos on 13b rew RX8's, having the option to move a second turbo more independently would create some options.

By the way, BorgWarner is investing a lot on these solutions, of course world moved to electrification and the poor rotary should be only a range extender.

Thanks.

Yes, but those aren’t simple bolt-on aftermarket solutions and again; the requirement for a rotary is substantially different than a reciprocating piston engine. It’s an issue in general with people having lofty thoughts when they lack the fundamentals.
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Of course either of those suggestions can be made to work just great with enough $$$$ and the will/skill to do it.
Whether it would be worth it vs just doing a properly designed turbo setup for example ..... I doubt that.

I believe Audi is spearheading electric turbos right now. If I were to travel down this path I would see what they are doing. Too bad electric turbo development is probably DOA with the advent of electric motor vehicles, so I doubt the aftermarket tech will ever trickle down into something easily usable by enthusiasts.

they are not, but I like to brainstorm, also, I'm not considering suitability right now, just applicability of a concept.

I totally agree on the first part, but again, on a 13b rew this create a opportunity to use twincharges and place them away from each other. The torque curve BorgWarner achieved on that Mustang (video) is impressive. However, this is a solution that requires deep pockets.

To state it frankly; you haven’t the slightest idea what you’re going on about. Anybody who has a basic understanding of rotary engine dynamics is more than aware of this regardless of how much organic fertilizer continues to be shoveled on top.

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