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Old 02-23-2012, 09:58 PM   #41 (permalink)
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Forgive another sideways jump, but there is something the writer doesn't know in the electric supercharger article. While I am sure this company has more resources than Thomas Knight did when he made his electric supercharger, I have to question whether this is workable on 12 volts as claimed in the article. Maybe if it is only to eliminate turbo lag, but that is an awfully expensive solution that engineers have done a pretty good job minimizing anyway. I guess with the really high boost levels such an engine can take, a really big turbo can be used with such a system.

More importantly, I like the thought of a 177 hp version. Of course, if this is possible, why not a 120 hp 2 cylinder?

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Old 02-23-2012, 10:12 PM   #42 (permalink)
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Vibrations will likely be an issue, but otherwise... why not? I've always liked the sound and character of 2 and 3 cylinder engines. Funky little things.

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I'll believe the CPT when I see it. A 33 hp boost on a 200 hp engine would likely require about 5-6 psi... probably requiring around 10 hp in power going through the alternator.

An electric supercharger would definitely be a good way to eliminate boost lag without resorting to an expensive and finicky to maintain variable-geometry unit... have it pump just 2-4 psi into the engine at low rpms to support the regular turbo...

But they're dreaming if they say it can run off a standard 12 volt system continuously. Thomas Knight's system has massive drain under boost, which is why the battery packs are needed.

Maybe it's a Unicorn Corral thing?

EDIT: Okay, the 33 hp boost is on a small-ish engine, and the power curves show that all happens at low rpms, basically what you'd expect from the turbo's spool speed and power (about 2.4 hp peak shaft power)... which would also justify the claim it will work with a 12 volt system without a battery pack.

So you wouldn't have a lot of peak power, but the 70-80 naturally aspirated horses could be boosted to around 100 hp with a fatter torque curve. Perfect for daily use.

Neat little thing. Now I want one.

Last edited by niky; 02-23-2012 at 10:35 PM..
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Old 02-24-2012, 06:21 PM   #43 (permalink)
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Apparently electric turbos are practical because they are almost here. Subaru is ready to implement one on their next Impreza/WRX as can be read on All-New Subaru WRX: What to Expect - Motor Trend
I have to think this might be the impetus that finally causes cars to switch to a higher standard, probably 36 or 42 volts.
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Old 06-01-2012, 11:40 AM   #44 (permalink)
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An animation of the engine and explanation of major features that I don't think has been posted on EM (I checked this thread):


And 0:53-1:23 of this video shows the car parking itself:

And here's "engine sound" hahahaha!

Imagine this engine in the Gen 1 Insight body. It would be fast and do far better on gas, I would think.
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Old 06-01-2012, 01:09 PM   #45 (permalink)
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I'm surprised very few engine makers are using an offset bore that Honda uses in most of it's engines
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Old 06-01-2012, 01:24 PM   #46 (permalink)
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Quote:
Originally Posted by euromodder View Post
Yet we can cope with them, so why can't Americans ?
Safety is not really the issue - just about all European countries have better safety statistics than the US.
I wish this would be repeated over and over, I am sick and tired of the, you need a 3000lb compact car to be safe, I would love to see lighter more nimble cars with more modern drivetrains sold over here.

Two of my cars are under 1200lbs and I enjoy them, now if I could get a sub 1200lb car that was also aero
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Old 06-01-2012, 01:28 PM   #47 (permalink)
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...I'm surprised Ford stuck with the belt-drive instead of using the more robust chain-drive!

...bet the "internal" exhaust header within the head will eventually prove to be problematic because funneling ALL the hot gases together is GREAT for the turbo, but not so for head gaskets!
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Old 06-01-2012, 02:35 PM   #48 (permalink)
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FYI followup:

Ford Focus Ecoboost 1.0L Sales Off to a Strong Start | Hybrid Cars

May 2012:

Quote:
In Europe, Ford’s new 1.0-liter EcoBoost engine proved quite popular last month, accounting for some 23.3 percent of all Ford Focus sales in 19 major markets.


The 1.0-liter is currently the smallest displacement member of the EcoBoost family and thanks to direct injection and turbocharging, has been designed to deliver the performance of a conventional 1.6-liter normally aspirated gasoline engine with improved fuel economy and lower emissions.
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Old 06-01-2012, 03:00 PM   #49 (permalink)
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I'll take two please, i'll put them front and rear on my performance car and build an automated system for putting one in neutral and turning it off when it's not needed.

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Old 10-11-2012, 02:11 AM   #50 (permalink)
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This engine is scheduled to be available even in the Mondeo, so wouldn't be impossible to fit one even into a Fusion.

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