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Revolutionary New Inline 4 - Alfadan Big Block i4 Engine

05/31/2021 4:45 PM

7.5 L in-line 4 cylinder.... 654 hp @ 5500 rpm

Look for the mention of Freevalve the camless engine using pneumatically controlled valves...like in the KOENIGSEGG...

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#1

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

05/31/2021 5:12 PM

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#8
In reply to #1

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 10:04 AM

YES! Exactly what we need, more moving parts!

Gotta be Porsche.

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#9
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Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 11:53 AM

Not just Porsche, Toyota has a patent on this also, and there's one for diesel engines as well...probably others...mostly used for turbo boosted engines to increase compression ratio before boost kicks in reducing turbo lag... but also results in better gas mileage, cleaner burning engine, more power....s'all good...

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#2

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

05/31/2021 6:11 PM

What is your guess for the new rod design.....?

It could be offset where it connects to the crankshaft...maybe

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#3
In reply to #2

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

05/31/2021 6:33 PM

With a swivel joint in the middle and the top one fixed....maybe

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#4
In reply to #3

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

05/31/2021 8:28 PM

not to scale

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#5
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Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 3:03 AM

..."Porsche and Hilite conceived a way to adjust the apparent length of the connecting rods, the metal arms that connect to the crankshaft and drive the pistons up and down. A solenoid allows small oil-pressure-driven rods and an eccentric adjuster to raise or lower the bearing supporting the piston. The patent diagram appears to show a high and low position currently, not a variable height.

The car starts off with the piston in the high position. When the turbo begins injecting pressurized air, the piston drops to the low position. That reduces the compression ratio momentarily, allowing for more turbocharger boost and more power. The Porsche-Hilite design appears to be comparatively simple, at least compared to other variable-compression-ratio efforts that date back a century."...

So some minor tweaks and this would work...maybe

https://www.extremetech.com/extreme/204531-porsche-patents-a-variable-compression-ratio-engine-to-boost-power-and-fuel-efficiency

https://crcao.org/AFEE/2014AFEE/Final%20Presentations/Day%201%20Session%201%20SI-Octane%20Presentations/1-2%20Kleeberg,%20Henning_20140225.pdf

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#6
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Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 3:20 AM
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#10
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Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 12:08 PM

Wow. As someone who routinely expects more than 200,000 miles out of an engine with little more than oil changes and a plug change or two, I can't see myself buying into this level of antitheKISS.

My '02 Suburban is getting ready to tick over 300K. It does 'tick' a little on start-up, especially on cold mornings with a lazy lifter in there.

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#11
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Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 12:56 PM

"lazy Lifter" I haven't heard that one in years.

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#12
In reply to #11

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/01/2021 1:37 PM

Is my age showing?

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#13
In reply to #10

Re: REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

06/03/2021 1:57 AM

Well if it's purely mechanical you want, you can go with Hyundai's CVVD(continuously variable valve duration) engine, with a 10 year warranty or 100,000 miles...

More power, cleaner burning, better mileage....

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#7

Re: Revolutionary New Inline 4 - Alfadan Big Block i4 Engine

06/01/2021 6:34 AM

I somehow think it still won't be as impressive as the Beast of Turin, Fiat's 28 litre straight four.

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