Concept power units from 2030

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
Tommy Cookers
Tommy Cookers
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Re: Concept power units from 2030

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vorticism wrote:
Sun May 25, 2025 8:10 pm
Reminds me of how, what you might call “free redline” rules led to ever higher engine speeds in F1.
Piston speed is easier to calculate than piston inertia and in some cases easier to explain. Being 50 years before computers and digital calculators, perhaps that’s why the metric became a common frame of reference.
the rules now (fueling by rpm for all rpm) amount to fueling-by-piston speed (because the stroke is fixed by rule)

if stroke was free the same fueling-by-piston-speed might allow higher rpm via reduced stroke (and capacity) ....

even a more 'range extender' type of ICE
(assuming the designers can extend their combustion trickery to higher rpm)


btw 1
on YT Dominic Chinea is having trouble converting his Liberty (45 deg) V12 into a V8 - many think he should L6 or V6 it
as a V8 it won't vibrate worse than (successful) 90 deg 300 hp Wright-Hispano V8s (& better with some counterweight)
a 45 deg V twin is bad for primary imbalance - but these will cancel in a 45 deg V8
(a 90 deg V8 with flat crank is the worst for secondary imbalance)
and yes the Liberty V8 would be torsionally bad with an airscrew - but not so in a car
reforging the original unweighted V12 crankshaft into a 'flat' V8 counterweighted one should be interesting
https://www.jstor.org/stable/pdf/44720513.pdf
for 80 years medium-speed 45 deg V8s diesels were made for railway locomotives eg EMD 2 strokes & ALCO 4 strokes
ALCO used flat counterweighted cranks (the 2 strokes had counterweighted camshafts)

btw 2

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ispano6
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Re: Concept power units from 2030

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Extreme H

F1-level speed with water as fuel — Racing switches to hydrogen for the first time ever


https://www.coachesdatabase.com/f1-leve ... n-as-fuel/

mzso
mzso
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Re: Concept power units from 2030

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ispano6 wrote:
Mon Jun 09, 2025 5:26 pm
Extreme H

F1-level speed with water as fuel — Racing switches to hydrogen for the first time ever


https://www.coachesdatabase.com/f1-leve ... n-as-fuel/
(The title couldn't be more nonsensical even if that was their goal. )

It's seriously thin in information. It's not even clear whether it's H fueled ICE powered. Or a fuel cell series.

Anyway, since you posted in F1 engine concepts, I suppose you mean to argue for H2 for F1. But it will remain an unviable choice for similar reasons to batteries. Giant hydrogen cylinders holding a few kg of it don't really fit together with F1 car design. And not just because of weight, but because 350-700 atmosphere tanks are used.

I can easier imagine a BEV F1 concept with going to more energy dense experimental chemistries rather than road tech, and quick swap systems, with pit stops every 10-15 laps. (And then more laps as the tech would get better)