Rally2 (ex-R5) News

**Kenneth** · 21st November 2022, 08:58

Originally Posted by HKSjbg

The engine regs don’t state it has to be four cylinders, just ‘up to 1620cc turbo with 32mm restrictor’

https://www.fia.com/sites/default/fi...ruary_2021.pdf

Okay, thanks. So then, is it better to use 3cl vs 4cl while keeping the same engine volume?

**Fast Eddie WRC** · 21st November 2022, 09:18

Nice WRC Wings aero assessment of the Yaris Rally2 Concept...

https://www.wrcwings.tech/2022/11/21...2-concept-car/

**WRCStan** · 21st November 2022, 14:51

Originally Posted by HKSjbg

The engine regs don’t state it has to be four cylinders, just ‘up to 1620cc turbo with 32mm restrictor’

https://www.fia.com/sites/default/fi...ruary_2021.pdf

"The number of cylinders is limited to 4."

https://www.fia.com/sites/default/fi...2.10.19_jt.pdf

**HKSjbg** · 21st November 2022, 17:12

Originally Posted by WRCStan

"The number of cylinders is limited to 4."

https://www.fia.com/sites/default/fi...2.10.19_jt.pdf

OK so no inline-fives or more allowed

**Sulland** · 21st November 2022, 17:48

Originally Posted by HKSjbg

OK so no inline-fives or more allowed

Or GTV6

**Duvel** · 21st November 2022, 18:43

When wil we see the Yaris rally 2 in competition?

**AnttiL** · 21st November 2022, 19:49

Originally Posted by Duvel

When wil we see the Yaris rally 2 in competition?

Maybe not before 2024?

**Sulland** · 22nd November 2022, 19:17

Originally Posted by Kenneth

Okay, thanks. So then, is it better to use 3cl vs 4cl while keeping the same engine volume?

I am sure one of the engine specialists here will do an analysis, and calculations on differences. The only difference I saw in the tech regs, was difference in max valve lift. Higher lift on 3cyl.