r/F1Technical • u/mcgillw • 1d ago
Analysis Revving into the Future: How F1’s 2026 Regulations Will Redefine the Grid 🌍⚙️
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u/Anonymou2Anonymous 1d ago
I honestly think the 26 regs may not be good for competition.
The changes to drs are disappointing to be honest. Drs now promotes overtakes and has brought back healthy competition to the sport.
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u/ADSWNJ 1d ago
efforts have been made to maintain the auditory appeal of the cars.
This is one thing that we lost in the Turbo-Hybrid era, and especially with the MGU-H in the way in the exhaust system. Rather than "maintaining the auditory appeal", I am looking for "recapturing the auditory appeal of yesteryear". Personally, the hey-day for F1 engine sounds was the V10, but the V12's were also a close 2nd.
So - removing the MGH-H in 2026 will be a great step towards a better engine sound.
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u/Significant-Branch22 1d ago
Have they said anything about how they’re going to improve this besides getting rid of the mgu-h, are the engines going to rev any higher than during the turbo hybrid era?
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u/Astelli 1d ago
The current engines don't rev anywhere near their maximum allowed RPM (theoretically 15,000 RPM), so I would not expect that to change.
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u/Rillist 1d ago
I would. Removing the additional muffle from the mguH will free up the exhaust. We won't be anywhere near a screeching NA V10 but I suspect it will be closer to the current indycar levels in 2026. Still some muffling just from the nature of being turbocharged but we WILL have volume back.
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u/Astelli 1d ago edited 1d ago
I've always thought the removal for the MGU-H has been talked up a long way.
The MGU-H is "just" a motor-generator between the two halves of the turbocharger. Removing it doesn't inherently remove anything from the exhaust (although it probably is fair to say that the turbo will be less of an obstruction for more of the time), it mainly changes the way the teams can control the turbocharger and changes the way energy is harvested.
With the throttle wide open, the 2026 ICE will be a 1.6 litre V6 with a single turbocharger, just like the current PU. The changes to the turbocharger probably will result in some difference to the noise, but a significant difference will be that the ICE will have about 30% less fuel flowing through it.
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u/Rillist 1d ago edited 1d ago
MguH is the one on the turbo, K is the old school KERS that never went away.
The H still relied on and helped manipulate boost pressure by keeping the turbo in boost, so to speak. This is the component being removed and fuel is delivered at the cylinder head downstream of the turbo. Fuel usage will be reduced by 30% meaning injectors and probably the turbo will reduce in size as theres no need for a massive turbo when you can only use X amount of air for X amount of fuel. Smaller turbos tend to be louder than big ones as the muffling effect is smaller. This is why the honda F1 PUs from their early hybrid entries almost had a rally car snort to them. They were using a smaller diameter turbo.
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u/mistercupojoe101 1d ago
i too am skeptical that the removal of the MGU-H is going to be adrastic change, however I do believe it will be somewhat significant. While the engines will not rev any higher, the MGU-H is a way of recapturing the excess energy that would be used to spool the turbo higher than the range they consider optimal. By removing this component, the turbo will now be free to spool as it may and as such, we should get more of the turbo sound that the cars today have none of above idle
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u/1234iamfer 1d ago
Honestly I don't think removing the MGU-H will differentiate much in power unit performance. The unlimited MGU-H -> MGU-K energy transfer gave the developers a wide potential of performance they could exploit. A simple turbocharged ICE with a limited amount of fuel and MGU-K that run only on its own harvested energy, will have much less areas to exploit.
More performance can be expected from the new DRS aero design. Basically the designers have to design two concepts. A low drag concept for when the DRS is open and a high downforce concept for the closed DRS.
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