{"id":4255,"date":"2026-10-01T13:39:26","date_gmt":"2026-10-01T11:39:26","guid":{"rendered":"https:\/\/mtk-club.jp\/fr\/?p=4255"},"modified":"2026-10-01T23:28:52","modified_gmt":"2026-10-01T21:28:52","slug":"joy-fast-yellow-bird-na6c","status":"publish","type":"post","link":"https:\/\/mtk-club.jp\/fr\/joy-fast-yellow-bird-na6c\/","title":{"rendered":"Joy Fast Yellow Bird NA6C"},"content":{"rendered":"\n
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MTK Archives \u00b7 Mazda Roadster NA<\/div>\n

Joy Fast Yellow Bird NA6C<\/h1>\n <\/div>\n
16 sections \u00b7 75 entr\u00e9es
Source: Hyper Rev Vol. 93 Roadster No. 4<\/div>\n <\/header>\n
\n \"Joy\n
\n
\n
Moteur<\/span>BP-ZE<\/span><\/div>\n
Cylindr\u00e9e<\/span>1839 cc<\/span><\/div>\n
Poids<\/span>867 kg<\/span><\/div>\n <\/div>\n

Le pr\u00e9parateur japonais Joy Fast pr\u00e9sente la Yellowbird NA8C, une Eunos Roadster d\u00e9di\u00e9e au time attack, pens\u00e9e pour la l\u00e9g\u00e8ret\u00e9, la pr\u00e9cision et l’\u00e9quilibre du ch\u00e2ssis. Con\u00e7u pour rivaliser avec les meilleures atmosph\u00e9riques sur circuit, ce build privil\u00e9gie la r\u00e9duction de poids, l’a\u00e9rodynamique et un comportement pr\u00e9visible afin d’optimiser la vitesse de passage en courbe.<\/p>\n <\/div>\n <\/div>\n

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Galerie photo<\/span>29 scans<\/span><\/div>\n
\n
\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n \"Joy<\/a>\n <\/div>\n<\/div>\n <\/section>\n\n\n
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Aper\u00e7u<\/h3>\n
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Code ch\u00e2ssis<\/th>NA8C<\/td><\/tr>\n
Architecture<\/th>FR<\/td><\/tr>\n
Poids<\/th>867 kg<\/td><\/tr>\n
Concept<\/th>Une machine d\u00e9di\u00e9e au time attack, qui mise sur la l\u00e9g\u00e8ret\u00e9, la pr\u00e9cision et l'\u00e9quilibre plut\u00f4t que sur la puissance brute.<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Moteur<\/h3>\n
\n
Code moteur<\/th>BP-ZE<\/td><\/tr>\n
Cylindr\u00e9e<\/th>1839 cc<\/td><\/tr>\n
Al\u00e9sage x course<\/th>86 x 85 mm<\/td><\/tr>\n
Taux de compression<\/th>11:1<\/td><\/tr>\n
Pistons<\/th>Haute compression<\/td><\/tr>\n
Bielles<\/th>Forg\u00e9es en H<\/td><\/tr>\n
Vilebrequin<\/th>All\u00e9g\u00e9 et \u00e9quilibr\u00e9<\/td><\/tr>\n
\u00c9quilibrage \/ Assemblage<\/th>Black Metal<\/td><\/tr>\n
Arbres \u00e0 cames<\/th>TODA 288\u00b0<\/td><\/tr>\n
Pignons d'arbres \u00e0 cames<\/th>TODA r\u00e9glables<\/td><\/tr>\n
Joint de culasse<\/th>M\u00e9tallique, 0.8 mm<\/td><\/tr>\n
Culasse<\/th>Rod\u00e9e et polie, chambres de combustion modifi\u00e9es, taux de compression relev\u00e9<\/td><\/tr>\n
Distribution<\/th>Soupapes surdimensionn\u00e9es, doubles ressorts renforc\u00e9s, guides de soupapes renforc\u00e9s<\/td><\/tr>\n
Supports moteur<\/th>MAZDASPEED<\/td><\/tr>\n
Corps de papillons<\/th>Carburateurs FCR<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Suralimentation<\/h3>\n
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Collecteur d'\u00e9chappement<\/th>Integral Kobe Master Spec EX, 45 \u00e0 60 mm<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Carburant et allumage<\/h3>\n
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Pompe \u00e0 carburant<\/th>NISMO<\/td><\/tr>\n
Bougies<\/th>NGK Racing indice 9<\/td><\/tr>\n
Allumage<\/th>Allumage MSD, c\u00e2bles de bougies ULTRA Blue Point<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Gestion moteur<\/h3>\n
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Calculateur<\/th>HKS F-CON V Pro 32 bits<\/td><\/tr>\n
Notes de gestion moteur<\/th>Rupteur et avance \u00e0 l'allumage cartographi\u00e9s pour favoriser la r\u00e9ponse \u00e0 l'acc\u00e9l\u00e9rateur<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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\u00c9chappement<\/h3>\n
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\u00c9chappement \/ Silencieux<\/th>Ligne d'\u00e9chappement compl\u00e8te<\/td><\/tr>\n
Ligne<\/th>Tout inox, ligne principale 60 mm, sortie 80 mm<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Refroidissement<\/h3>\n
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Radiateur<\/th>Aluminium Joy Fast, double faisceau, capacit\u00e9 augment\u00e9e<\/td><\/tr>\n
Radiateur d'huile<\/th>Earls 12 rang\u00e9es<\/td><\/tr>\n
Circuit d'huile<\/th>Pignon de pompe \u00e0 huile renforc\u00e9<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Transmission<\/h3>\n
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Embrayage<\/th>Mechadoc OS Super Single, garniture m\u00e9tallique<\/td><\/tr>\n
Bo\u00eete de vitesses<\/th>\u00c9tagement rapproch\u00e9 OS Giken<\/td><\/tr>\n
Rapport de pont<\/th>4.4<\/td><\/tr>\n
Diff\u00e9rentiel (arri\u00e8re)<\/th>Autobloquant MAZDASPEED 2 voies<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Suspension<\/h3>\n
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Amortisseurs \/ Combin\u00e9s filet\u00e9s<\/th>JIC<\/td><\/tr>\n
Raideur de ressort (avant)<\/th>13 kg\/mm<\/td><\/tr>\n
Raideur de ressort (arri\u00e8re)<\/th>11 kg\/mm<\/td><\/tr>\n
Ressorts<\/th>Bestex<\/td><\/tr>\n
Barres antiroulis<\/th>Biellettes de barre antiroulis \u00e0 rotules<\/td><\/tr>\n
Notes de suspension<\/th>G\u00e9om\u00e9trie optimis\u00e9e<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Freinage<\/h3>\n
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\u00c9triers<\/th>Maruha Motors 4 pistons \u00e0 l'avant<\/td><\/tr>\n
Disques (avant)<\/th>Origine NB<\/td><\/tr>\n
Plaquettes<\/th>ENDLESS<\/td><\/tr>\n
Durites<\/th>Durites aviation inox<\/td><\/tr>\n
R\u00e9partiteur<\/th>Joy Fast<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Jantes et pneus<\/h3>\n
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Jantes<\/th>ENKEI ES Tarmac<\/td><\/tr>\n
Dimension de jante (avant)<\/th>15" 7.5J ET15<\/td><\/tr>\n
Dimension de jante (arri\u00e8re)<\/th>15" 7.5J ET15<\/td><\/tr>\n
Pneus<\/th>Yokohama Advan A048<\/td><\/tr>\n
Dimension de pneu (avant)<\/th>205\/50R15<\/td><\/tr>\n
Dimension de pneu (arri\u00e8re)<\/th>225\/50R15<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Ch\u00e2ssis et rigidit\u00e9<\/h3>\n
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Arceau<\/th>Complet<\/td><\/tr>\n
Renforts<\/th>Encadrements de portes et berceau soud\u00e9s en continu, renforts en ur\u00e9thane par endroits<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Ext\u00e9rieur et a\u00e9rodynamique<\/h3>\n
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Bouclier avant<\/th>Garage Vary<\/td><\/tr>\n
Bas de caisse<\/th>Garage Vary<\/td><\/tr>\n
Aileron \/ Spoiler<\/th>Aileron GT Voltex<\/td><\/tr>\n
Capot<\/th>Garage Vary<\/td><\/tr>\n
Diffuseur \/ Fond plat<\/th>Grande lame avant<\/td><\/tr>\n
Vitrages<\/th>Polycarbonate<\/td><\/tr>\n
Notes ext\u00e9rieur<\/th>Panneaux en polyester<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Int\u00e9rieur<\/h3>\n
\n
Si\u00e8ges<\/th>Baquets de comp\u00e9tition<\/td><\/tr>\n
Harnais<\/th>SABELT 5 points<\/td><\/tr>\n
Volant<\/th>Personal<\/td><\/tr>\n
Notes int\u00e9rieur<\/th>Int\u00e9rieur vid\u00e9, sans climatisation ni insonorisation<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Performances<\/h3>\n
\n
Circuit<\/th>Tsukuba 2000<\/td><\/tr>\n
Palmar\u00e8s<\/th>Engag\u00e9e dans la classe D du Roadster King Battle<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n
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Divers<\/h3>\n
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Thermostat<\/th>Billion<\/td><\/tr>\n
R\u00e9glage des amortisseurs<\/th>40 crans, r\u00e9glage sp\u00e9cial Tsukuba Joy Fast et Parts Creator PCR<\/td><\/tr>\n
Coupelles sup\u00e9rieures<\/th>Origine NB<\/td><\/tr>\n
Bras de suspension<\/th>Tubulaires, sur rotules uniball, longueurs optimis\u00e9es<\/td><\/tr>\n
Diffuseur arri\u00e8re<\/th>RE Amemiya modifi\u00e9<\/td><\/tr>\n
Hardtop<\/th>All\u00e9g\u00e9, Oyama Auto<\/td><\/tr>\n
Canards<\/th>\u00c0 l'avant<\/td><\/tr>\n
Pommeau de vitesses<\/th>Joy Fast<\/td><\/tr>\n
\u00c9tat<\/th>Actuellement hors service<\/td><\/tr>\n<\/tbody><\/table><\/figure><\/div>\n <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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