Rally2 (ex-R5) News

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Originally Posted by Mirek

I think that they still have relative disadvantage in used stock base engine even though it went through a lot of changes since the time DS3 was developed. I mean that they are still the only ones using stock 1.6 engine as a basis and therefore near stock bore/stroke ratio which is a lot different than in other cars (they have smaller bore and larger stroke).

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Yeah, engine still doesn’t look that strong from videos so far although power delivery looks less weird than on the old car.

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Originally Posted by RS

The put-put-put under braking on the Citroen sounds a bit silly, but overall it looks more convincing than the previous generation PSA R5s.

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Sounds awful... especially compared to the old DS3 R5 which sounded fabulous.

Looks good though.

Does this make sense: http://www.carmag.co.za/technical_po...s-shortstroke/

So for rally the longstroke gives a bit more torque in low revs, is that the main advantage?
in the two litre era they used to be square did they not?

I thought the modern turbos compensated for this.

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Originally Posted by Sulland

Does this make sense: http://www.carmag.co.za/technical_po...s-shortstroke/

So for rally the longstroke gives a bit more torque in low revs, is that the main advantage?
in the two litre era they used to be square did they not?

I thought the modern turbos compensated for this.

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I am not engine engineer but if I remember the main issue with such small bore engines is that the piston is so small that there is not enough space for larger valves. For sure there is a reason why purpose-built WRC engines have large bore and short stroke - Polo WRC bore/stroke ratio 1,125; Fiesta WRC 1,123; C3 WRC 1,167. Now compare with same size R5 units. Fabia R5 1,088 (based on 1.8 stock engine with shortened stroke); Fiesta R5 1,192 (based on 2.0 stock engine with shortened stroke); C3 R5 0,897 (based on stock 1.6 engine).

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https://pbs.twimg.com/media/DPoIr-zW...jpg&name=large

https://pbs.twimg.com/media/DPoZsfTX...jpg&name=large

VW stuff
http://classic.autosport.com/news/report.php/id/133299

I am curious how will be a VW rally car without Ogier hands

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Originally Posted by Andre Oliveira

I am curious how will be a VW rally car without Ogier hands

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Škoda without Ogier always doing fine, so I'm calm about it ;)

which i20 Hyundai has the 4b11 from Evo X?
https://rallysportmag.com/details-em...roton-iriz-r5/