Rally2 (ex-R5) News

[becher]

From the mouth of a team member, I think not. Or give me a link to prove me wrong

I don't have a link, but i think it was mentioned already like half a year ago?

[AnttiL]

I don't have a link, but i think it was mentioned already like half a year ago?

When did we even get confirmed news that the car exists?

[becher]

When did we even get confirmed news that the car exists?

I think it was rather along the lines of "future Rally2/3 will use the three cylinder".

[becher]

When did we even get confirmed news that the car exists?

Maybe i just put one and one together, when reading this article long ago:

https://dirtfish.com/rally/toyota-se...y2-and-rally3/

"DirtFish understands the one-liter engine option from Toyota wasn’t capable of challenging the 210bhp required for a frontrunning Rally3 machine, hence the shift to a 1.6 motor."

[Sulland]

But are there any drawbacks in having a 3 cylinder engine?

[ictus]

But are there any drawbacks in having a 3 cylinder engine?

fewer valves,
but i think they can be larger, so the overall amount of air getting in the combustion chamber is the same

[dimviii]

also less friction at movement parts,and very near to the ''ideal'' 500cc for each cylinder.
Also less length of engine.

[Sulland]

One difference

Maximum valve lift :
• 11 mm for a 4-cylinder engine
• 13 mm for a 3-cylinder engine
The cam lift must be homologated in VRa2.
The number and diameter of the bearings must be retained.
‘’VVT’’ and “VALVETRONIC” etc. type systems are authorised if original. They may be rendered inoperative.

Check article 261 to see if you can spot other differences:
https://www.fia.com/regulations/search

[becher]

Also generally speaking a engine with more displacement per cylinder is more suitable to regulations with a small restrictor right?

[dimviii]

Also generally speaking a engine with more displacement per cylinder is more suitable to regulations with a small restrictor right?

Imho i dont see any advantage.If you could explain will be usefull.