GoranF1 wrote: ↑16 Feb 2026, 16:23
Can they redesign gearbox and ICE after homologation date on reliability basis?
You don't even know the what the gearbox problem is and you want to redesign it ? These are probably just normal NEW gearbox issues, they'll figure it out. Remember everyone else is probably running last years gearbox or something like 90% the same as last year.
The PU has exceptions for reliability and Under the 2026 PU regulations:
The FIA will continuously measure PU performance (e.g., power output) across the season.
After designated points (typically after Races 6, 12 and 18 of the championship), the FIA may grant ADUO allowances to manufacturers whose power units are significantly below the best performing units. These allowances may include:
• Additional homologation opportunities (i.e., permission to introduce upgrades that normally would be restricted),
• Extra development hours on test benches (effectively giving more dyno time to rework PU components),
• Limited cost cap relief tied specifically to PU development.
Specifically, the threshold criteria discussed in the rules and technical explanations indicate that if a PU manufacturer’s ICE performance deficit is at least 2 % or more below the best engine, they may be eligible for extra development allowances — potentially two additional homologation upgrades in the affected and following seasons if the deficit falls into defined bands (e.g., 2-4 % or greater).