Chaka chino injini ya Wankel ku Mazda imakondwerera zaka 50 ndipo mphekesera za kubwerera kwa mtundu uwu wa injini ku mtunduwo ndi wamphamvu kuposa kale lonse. Mpaka pakhale (kachiwiri) kutsimikizira ngati tidzakhala ndi makina atsopano a injini yozungulira, tikupitiriza kupeza zotsatira za Wankel saga.
Ndipo ichi ndi chimodzi mwa odziwika kwambiri. Gulu B losowa la 1985 la Mazda RX-7 Evo, kuyambira 1985, lidzagulitsidwa pa Seputembara 6 ku London, ndi RM Sotheby's. Inde, ndi Mazda Gulu B.
M'zaka za m'ma 1980, dalaivala waku Germany Achim Warmbold anali kumbuyo kwa Mazda Rally Team Europe (MRTE) ku Belgium. Poyamba khama lawo linayang'ana pa chitukuko cha Mazda 323 Gulu A, koma ntchitoyi inatsatiridwa mwamsanga ndi Mazda RX-7 Gulu B lofuna kwambiri ndi injini ya Wankel.
Mosiyana ndi zilombo zomwe zinatuluka m'gulu ili - gudumu loyendetsa magudumu anayi, kumbuyo kwa injini yapakati ndi yowonjezereka - Mazda RX-7 anakhalabe "otukuka". Pamunsi pake panali m'badwo woyamba wa galimoto yamasewera (SA22C / FB), ndipo monga galimoto yopangira galimotoyo inkasunga magudumu akumbuyo, injini kutsogolo osati turbo pamaso. Kutali ndi ma prototypes ngati Lancia Delta S4 kapena Ford RS200.
Injini, 13B yodziwika bwino, idakhalabe yolakalaka mwachilengedwe. Kuti mukhale ndi mphamvu zambiri, siling'ono ya revs iyenera kukwera. Mphamvu ya 135 ndiyamphamvu pa 6000 rpm idakwera mpaka 300 pa 8500!
Ngakhale kulibe turbo ndi kukopa kwathunthu, Mazda RX-7 Evo, monga momwe angatchulire, adatha kupeza malo achitatu mu Acropolis Rally (Greece) mu 1985. Inalipo kokha pa mpikisano wa dziko lonse mu 1984. ndi 1985 ndipo kunena zoona, polojekitiyi sinalandirepo chithandizo chochuluka kuchokera ku kampani ya makolo. "Mazda" anakonda chitukuko cha 323 Gulu A - injini yamphamvu zinayi yamphamvu ndi turbo ndi magudumu anayi. Ndipo m’mbiri yakale, chingakhale chisankho chanzeru.
MRTE 019, Mazda RX-7 omwe sanachite nawo mpikisano
Gulu B lidzatha mu 1986 ndipo ndi izo, mwayi uliwonse wa zatsopano za RX-7. Chifukwa cha malamulo omwe alipo, mayunitsi 200 a homologation angakhale ofunikira, koma Mazda amangomanga 20, monga mtundu wa Japan unali kale ndi homologation m'magulu 1, 2 ndi 4. Mwa 20, akuganiza kuti asanu ndi awiri okha anali anakwera kotheratu, ndipo imodzi mwa zimenezi inawonongeka pangozi.
Chigawo chomwe chikugulitsidwa ndi chassis cha MRTE 019, ndipo mosiyana ndi RX-7 Evo ina, iyi sinayendepo. Pambuyo pa kutha kwa Gulu B, gawoli lidatsalira ku Belgium, pamalo a MRTE. Kumayambiriro kwa zaka za m'ma 90, MRTE 019 inapita ku Switzerland - kupyolera mwa wogulitsa kunja kwa Mazda -, pamodzi ndi chassis ina ndi mbali za RX-7.
Patatha zaka zingapo idasowa pamalopo, kukhala gawo lazosonkhanitsa zachinsinsi, isanasinthenso manja kwa mwini wake wapano. Zinali ndi womalizayo, David Sutton, kuti MRTE 019 idakonzedwanso, yomwe idatenga miyezi isanu ndi umodzi, kuti zitsimikizire kuti zonse zagalimotoyo zinali zolondola komanso sizinasokonezedwe. Mapeto ake ndi Mazda RX-7 Evo momwe ilili komanso momwe fakitale yoyambira.
Malinga ndi a RM Sotheby's, ndiwotsimikizika kukhala Mazda RX-7 Evo Gulu B lokhalo lomwe lilipo ndipo mwina Gulu B lokhalo losagwiritsidwa ntchito.
