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Thread: Rally 3 class

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    Senior Member Sulland's Avatar
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    Renault is using a 4 cyl 1333 ccm engine (R2C) on their Rally5, will they use the same base for their rally4 and rally3 cars?
    Or will they go R2B for their Rally3/Rally4?

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    Quote Originally Posted by Sulland View Post
    Renault is using a 4 cyl 1333 ccm engine (R2C) on their Rally5, will they use the same base for their rally4 and rally3 cars?
    Or will they go R2B for their Rally3/Rally4?
    I don´t know but I´m expecting 1.2T

    Is 1,33T even allowed in Rally3/4 ?
    "quattro best 4wd rallycar ever"

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    Senior Member Rally Power's Avatar
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    Quote Originally Posted by Sulland View Post
    Renault is using a 4 cyl 1333 ccm engine (R2C) on their Rally5, will they use the same base for their rally4 and rally3 cars?
    Or will they go R2B for their Rally3/Rally4?
    No need to change engines as Rally 5/4 (and partially 3) allows the car upgrading, just like in Gr.N/A days; Renault (and hopefully other manus in the future) will sold a Rally4 kit for Rally5 owners. Besides, Rally5/4 turbo engines max capacity is 1333cc (non turbo limited to 1600cc in Rally5 and 2000cc in Rally4).

    Btw, Rally4 rules changes approved in last June (including a new 30mm restrictor) will only be effective from January 1. The cars will become a bit slower but, surprisingly, Rally3 cars will also be forced to use the small restrictor, meaning they won’t get any advantage on tarmac events regarding Rally4 cars.

    June WMSC resolutions on Rally 5/4/3 can be seen on Regional Rally Championships section: https://www.fia.com/news/fia-announc...l-decisions-18
    Rally addict since 1982

  4. Likes: pantealex (7th September 2020)
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    Senior Member Sulland's Avatar
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    If tests show that Rally3 need this larger restrictor to be able to get the power needed to utilise the 4wd, FIA could opt to keep a bigger restrictor for the 4wd I guess.

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    Quote Originally Posted by Sulland View Post
    If tests show that Rally3 need this larger restrictor to be able to get the power needed to utilise the 4wd, FIA could opt to keep a bigger restrictor for the 4wd I guess.
    If engines don´t last, car is not so cheap anymore...
    "quattro best 4wd rallycar ever"

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    Senior Member Sulland's Avatar
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    Quote Originally Posted by pantealex View Post
    If engines don´t last, car is not so cheap anymore...
    Fully agree, but do we know that durability is the reason to reduce restrictor size, or is it that Rally4 is so much quicker compared to existing R2 cars?

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