Questions: Technical development of an R2 rally car

[Lundefaret]

Hello

I have a couple of questions regarding the technical regulations and development of an R2 rally car:

1) If the car in question does not come standard with a 1600 NA engine, can one put a 1600 NA engine in it so it can comply with the rules?
2) If so, what is the rules of putting in this engine, regarding manufacturer etc?

Do anybody know the answer to this?

[Mirek]

Prior this year it was not possible to put an engine from other car but since 2014 it is possible. This rule was changed to allow Opel to homologate the Adam R2 (no stock Adam 1.6 exists). The engine must come from the portfolio of the same brand. I don't know the exact rules though.

[Lundefaret]

Prior this year it was not possible to put an engine from other car but since 2014 it is possible. This rule was changed to allow Opel to homologate the Adam R2 (no stock Adam 1.6 exists). The engine must come from the portfolio of the same brand. I don't know the exact rules though.

Thank You very much Mirek!

[Mirek]

By the way I expect soon some R2T option to come. The atmospheric 1.6 engines are disappearing, for example the whole VAG group uses them only in Russia and Asia. I guess it will be something like 1.2 turbo which would suit all European manufacturers.

[Paul Hudson]

Did Skoda not homologate a Engine only for the Fabia R2 car ?, a few years ago ?. They did not have a 1.6 Petrol car in the Fabia road car range.

[Mirek]

No, they did have the engine in Fabia but only on Russian market. That's why the homologation was so late that time because the production in Russia was quite slow and they were waiting for enough cars produced. Besides that Škoda Motorsport was not working on the car as it was a private project. They only provided homologation and helped with several tests but that's all as far as I know.

[OldF]

Looking at the homologations, the Adam’s engine is from an Astra.

http://www.fia.com/sites/default/fil...16.09.2014.pdf (page 7)

Looks like the turbo engines will be allowed from beginning of 2015.

http://www.fia.com/sites/default/fil...12.09.2014.pdf

The cars are divided up according to their engine cylinder capacity into the following classes:
Added as from 01.01.2015 :

Normally aspirated engine / Supercharged engine
R1A up to 1390 cm³ / up to 927 cm³
R1B over 1390 cm³ and up to 1600 cm³ / over 927 cm³ and up to 1067 cm³
R2B over 1390 cm³ and up to 1600 cm³ / over 927 cm³ and up to 1067 cm³
R2C over 1600 cm3 and up to 2000 cm³ / over 1067 cm3 and up to 1333 cm³
R3C over 1600 cm3 and up to 2000 cm³ / over 1067 cm3 and up to 1333 cm³


What is there or coming on the market?

[Mirek]

That's somewhat strange. Up to 1333 ccm turbocharged in R3? Current R3T cars have up to 1620 ccm.

[Sulland]

Looking at the homologations, the Adam’s engine is from an Astra.

http://www.fia.com/sites/default/fil...16.09.2014.pdf (page 7)

Looks like the turbo engines will be allowed from beginning of 2015.

http://www.fia.com/sites/default/fil...12.09.2014.pdf

The cars are divided up according to their engine cylinder capacity into the following classes:
Added as from 01.01.2015 :

Normally aspirated engine / Supercharged engine
R1A up to 1390 cm³ / up to 927 cm³
R1B over 1390 cm³ and up to 1600 cm³ / over 927 cm³ and up to 1067 cm³
R2B over 1390 cm³ and up to 1600 cm³ / over 927 cm³ and up to 1067 cm³
R2C over 1600 cm3 and up to 2000 cm³ / over 1067 cm3 and up to 1333 cm³
R3C over 1600 cm3 and up to 2000 cm³ / over 1067 cm3 and up to 1333 cm³


What is there or coming on the market?

Why 1390 and not 1400 ccm?
and same engine in R2 and R3 C category, so what is the difference?

[Lundefaret]

These volum rules would be easy to explain to a newcomer