Uyu mwaka moteri ya Wankel muri Mazda yizihiza imyaka 50 kandi ibihuha bivuga kugaruka k'ubu bwoko bwa moteri kuranga birakomeye kuruta mbere hose. Kugeza habaye (byongeye) kwemeza niba tuzaba dufite imashini nshya ya moteri izunguruka, dukomeje kuvumbura ibisobanuro bya saga ya Wankel.
Kandi iyi ni imwe mu zitamenyekanye. Ikidasanzwe cya Mazda RX-7 Evo Itsinda B, guhera mu 1985, kizatezwa cyamunara ku ya 6 Nzeri i Londres, na RM Sotheby. Nibyo, ni itsinda rya Mazda B.
Mu myaka ya za 1980, umushoferi w’umudage Achim Warmbold yari inyuma ya Mazda Rally Team Europe (MRTE) mu Bubiligi. Ku ikubitiro imbaraga zabo zibanze ku iterambere rya Mazda 323 Itsinda A, ariko uwo mushinga wakurikiwe byihuse na Mazda RX-7 Itsinda B rifite moteri ya Wankel.
Bitandukanye n'ibisimba byagaragaye muri iki cyiciro - gutwara ibiziga bine, moteri yo hagati na moteri irenga - Mazda RX-7 yagumye kuba "umuco". Munsi yacyo hari igisekuru cya mbere cyimodoka ya siporo (SA22C / FB), kandi nkimodoka itanga umusaruro yagumizaga inyuma yimodoka, moteri imbere ntabwo ari turbo imbere. Hafi ya prototypes nka Lancia Delta S4 cyangwa Ford RS200.
Moteri, izwi cyane 13B, yagumye yifuzwa bisanzwe. Kugirango ubone imbaraga nyinshi, hejuru ya revs igisenge igomba kuzamuka. Imbaraga zerekana ingufu za 135 zingana na 6000 rpm ziyongereye kugera kuri 300 kuri 8500!
Nubwo nta turbo ihari kandi yuzuye, Mazda RX-7 Evo, nkuko byitwa, yashoboye kubona umwanya wa gatatu muri Acropolis Rally (Ubugereki) mu 1985. Yabonetse gusa muri shampionat yisi yose mu 1984 na 1985 kandi ukuri kuvugwe, uyu mushinga ntabwo wigeze ubona inkunga nyinshi mubigo byababyeyi. Mazda yashyigikiye iterambere rya 323 Itsinda A - moteri ya silindari enye hamwe na turbo na moteri enye. Kandi mumateka, byaba ari icyemezo cyubwenge.
MRTE 019, Mazda RX-7 itigeze ibona irushanwa
Itsinda B ryarangira 1986 kandi hamwe naryo, amahirwe yose yiterambere rishya kuri RX-7. Bitewe n'amategeko ariho, ibice 200 byo guhuza ibitsina byakenerwa, ariko Mazda yagombaga kubaka 20 gusa, kuko ikirango cyabayapani cyari kimaze kugira statut ya homologation mumatsinda ya 1, 2 na 4. Muri 20, hafatwa ko barindwi gusa bari yubatswe rwose, kandi kimwe muri ibyo cyarasenyutse mu mpanuka.
Igice cyo guteza cyamunara ni chassis ya MRTE 019, kandi bitandukanye nizindi RX-7 Evo, iyi ntiyigeze ikora. Nyuma yo kurangiza Itsinda B, iki gice cyagumye mu Bubiligi, ku nyubako ya MRTE. Mu ntangiriro ya 90, MRTE 019 yagiye mu Busuwisi - ibinyujije mu gihugu cya Mazda - hamwe na chassis hamwe n'ibice bya RX-7.
Nyuma yimyaka mike yabuze aho iboneka, ihinduka igice cyegeranyo, mbere yo guhindura amaboko kuri nyirayo. Hamwe na nyuma, David Sutton, nibwo MRTE 019 yakorewe inzira yo gusana urumuri, rwamaze amezi atandatu, kugirango barebe ko amakuru yose yimodoka yari afite kandi atayangijwe. Igisubizo cyanyuma ni Mazda RX-7 Evo mumiterere no mubisobanuro byuruganda.
Nk’uko RM Sotheby ibivuga, byemejwe ko ari yo yonyine y'umwimerere ya Mazda RX-7 Evo Group B ibaho kandi wenda itsinda ryonyine ridakoreshwa B.
