Sonke sagqiba ukuthanda uhlobo oluthile lomculo, kodwa kwi-petrolheads kunokuba lukhetho olukhohlisayo xa loo mculo ofanayo uveliswa ngeenjini zezakhiwo ezahlukeneyo.
Inye into eqinisekileyo: i Ibhloko encinci V8 I-Chevy's ineminyaka engama-60 icula kwaye isazoqhubeka nokucula, kwaye i-ZZ6 yamva nje ibe yeyokugqibela ekhwazayo, ekhwazayo kumgca omde.
Kodwa ngaphambi kokuba siye kwimvelaphi, kufuneka sikushiye ezinye izinto, ukuze uqonde kakuhle Umahluko phakathi kweV8 “Ibhloko Enkulu” kunye neV8 “Ibhloko encinci” , okanye “Ibhloko Enkulu” kunye “neBlock encinci”.
Wazalwa njani uSmall Block kwaye yintoni umahluko?
Ngaphambi kokubonakala kweBlock V8 yokuqala yokuqala, kwi-1955, i-V8 inikezela ngabakhi abaninzi baseMelika yenziwa yi-Big Blocks. Asifuni ukuyandisa kakhulu, kodwa umahluko omkhulu ngowona uphawuleka kakhulu: iibhloko ezinkulu zinkulu ngokwasemzimbeni kuneebhloko ezincinci zombini ubude kunye nobubanzi, oko akuthethi ukuba banokufuduswa okungaphezulu, enyanisweni kunokwenzeka. ukuba nokufuduswa okufanayo kunye neebhloko ezimbini.
Iibhloko ezinkulu zineentonga zokudibanisa ezinde, ezithanda ukubetha kwepistons, ngaloo ndlela zivelisa itorque eyongezelelekileyo, kodwa zingenakho ukujikeleza okuphezulu, kwaye ubukhulu bentsimbi phakathi kweendonga zecylinder bukhulu kakhulu. Ngakolunye uhlangothi, iintloko phakathi kwezi bloko zinezakhiwo ezahlukeneyo, zombini kwii-angles ze-valve kunye nakwiindlela zokupholisa ezahlukeneyo kunye ne-lubrication. Njengoko kwiibhloko ngokwazo, kwimeko yeendlela zokuthambisa, ukongeza kubungakanani, iibhloko ngokwazo zineengile ezahlukeneyo zombini kwi-V-opening kunye nakwii-angles kunye nesithuba se-impellers eziqinileyo / zehydraulic ezihambisa iziqu zevalve. ibekwe entloko.
Iinjineli zeChevy zazisazi ukuba iiBhloko ezinkulu zinendawo yazo egcinelwe izithuthi ezinkulu kwaye ngoko ke kwakukho imfuneko yokudala into elula, enamandla afanayo, kodwa ekwaziyo ukuvelisa amandla amaninzi kwi-revs ephezulu kakhulu, ngaloo ndlela izalwe iBloko encinci.
Kwaba ngoko ngo-1955 apho kwazalwa iBloko yokuqala encinci yakwaChevy, i 265 (ngokubhekiselele kumthamo wayo kwii-intshi ze-cubic), i-4.3 l V8 encinci enamandla ukusuka kwi-162 hp ukuya kwi-180 hp, kunye ne-architecture ye-pushrod kunye ne-OHV (i-valve ephezulu). Bekufanelekile ukubuyisela abantu abafuduswayo ngokulinganayo kodwa kwiibhloko zeesilinda emithandathu engaphakathi, enemithambo emincinci yezemidlalo kwaye ibigxile kakhulu kuqoqosho lwamafutha.
ilandele i ibhloko 283 4.6 l, le V8 iya kuba noxanduva lokunika amandla iChevy's sporty vein, kunye neyokuqala ukuhlanganisa iRochester mechanical injection system - le revolutionary system iphumelele i-1 hp per cubic inch.
Imbali 327 yaba yinguquko yeBloko esele idumile eNcinci 265. Le 5.3 l V8 ingenza imbali ngohlobo lwayo lwe-L-84, oluza kuxhobisa iCorvette C2 Stingray. Kwakhona ukuguqulwa kwenaliti yomatshini nguRochester, kuya kukhokelela ibhloko ye-L-84 ukuba idonse i-1,146 hp nge-intshi ye-cubic, irekhodi ephukile kuphela kwi-2001 kunye nesizukulwana se-3 se-LS6.
Sidlulela nakwintsomi Ibhloko encinci 302 , le 5.0 l V8 yayiza kuphawula isizukulwana, njengoko iingcambu zoyilo lwayo zivela ngokuthe ngqo kwizithintelo zokhuphiswano lweTrans Am, nge-SCCA (i-Sports Car Club yaseMelika), apho iibhloko ezinkulu kune-305 cubic intshi azizange zivunyelwe. Kwiminyaka yegolide yolu khuphiswano, ukukhuphisana phakathi kweCamaro Z / 28 kunye ne-Mustang Boss 302 kwaphikiswana ngokujika-ngokujika kwaye kwi-straights, i-290 hp abathi abaninzi babanga ukuba ngokwenene yayisondele kakhulu kwi-350, yayivuyisa abaqhubi beenqwelomoya kwi-1969 Camaro Z/28.
Ingxaki yeoli kunye nokuhambela phambili kwezobuchwepheshe njengesisombululo
Ngeminyaka yama-70s, ingxaki ye-oyile kunye nexesha le-Smog (ungcoliseko lomoya olwenziwa kukukhutshwa kweemoto, oluphawulwa yinkungu ehlanganiswe ziigesi ezingcolisa umoya), yayinokubulala iBloko encinci yakwaChevy, kodwa kwakungenjalo. Iinjineli ze-Chevrolet zanikwa umsebenzi we-Herculean wokufumana ibhloko ye-5.7-litre ye-350, i-LT1, ikwazi ukuhlangabezana nemigangatho yokusingqongileyo ngelixa inomdla wokulinganisa. Kusenjalo i-360 hp yayo ikhazimle. Nangona kunjalo, ngokufa kweeMoto zeMuscle, isihlunu esisulungekileyo saseMelika siya kuba namava alishumi lamandla, enziwe i-L-82. Le Block Small 350 sele ine-200 hp kuphela, eyenza iCorvette imoto enezibonelelo ezithobekileyo.
Amaxesha atshintshile kwaye ubunjineli buye bavela, kulapho ke Ibhloko encinci 350 L-98 . inaliti ye-elektroniki iya kwenza ukuba kube lula ukubuyisela ezinye zentsebenzo ezilahlekileyo uCorvette kunye noCamaro ngexesha leSmog. Amandla ayengaqaqambi, kuphela phakathi kwe-15 kunye ne-50 hp efunyenweyo, kodwa yayingaphezu kokwaneleyo ukuba i-Corvette igqithise i-240 km / h ngo-1985.
Ecaleni kweFactory Small Blocks, icandelo leNtsebenzo yeGM belisoloko libonelela ngezisombululo kwiiprojekthi ezahlukeneyo ezidingwa ngumlandeli kaGM. THE ZZ4 , ngokuba sesine kwisizukulwana sokusebenza okuphezulu Ibhlokhi encinci ye-350, iya kuba yimeko yobugcisa kwi-1996 kule mythical 5.7 l displacement ye-Chevrolet.
Isahluko esilandelayo: i-LS
Umnombo weChevrolet we-LS-isizukulwana seeBhloko ezincinci waqala ngo-1997. Mhlawumbi ukhe weva ngazo, nokuba kukusebenza kwazo, ukufikeleleka kwazo, okanye ukukhululeka okwenziwa ngazo utshintshiselwano xa kujongwa ubungakanani bazo obubambene ngokugqithisileyo. Ukususela kwisimboli se-5.7 l LS1 / LS6 ukuya kwi-7.0 l LS7 enkulu, iibhloko ze-LS ziye zaphawula ngonaphakade isizukulwana esilangazelela amandla, ukuthembeka kunye nokusetyenziswa okuphakathi, ngexabiso eliphantsi kunokhuphiswano.
Kubantu abathandanayo bamandla esikolo esidala, i-GM Performance isanikezela, kumthamo we-mythical cylinder we-7.4 l, ibhloko ye-LSX-R 454. Ngo-1970 i-mythical 454 LS6 yayiyi-V8 Big Block eyayixhobisa i-Chevelle SS, ngamandla angama-450. hp. Namhlanje kunokwenzeka ukukhupha ngendlela ye-N / A (efunwa ngokwemvelo) ukusuka kwi-LSX-R ngaphezu kwe-600 hp.
ZZ6, yamva nje
Silugqibile ukhenketho ngeChevrolet's Small Blocks ngenjini yamva nje evela kwiGM Performance, iZZ6 entsha . Ngokuqinisekileyo, isithethe siyaqhubeka nale 5.7 l V8 Small Block, kwaye ukubhiyozela le minyaka engama-60, le ZZ6 yongezelela ekubeni yeyona inamandla ye-5.7 l ever - 405 hp kunye ne-549 Nm ekhutshwe kwi-quad body carb yakudala - le 100% yamandla e-analog ixhomekeke kwiintloko ze-LS V8 ezenziwe ngokukodwa. Injongo yayikukunyusa isantya sokuhamba komoya, ngecamshaft endlongondlongo ngakumbi kodwa ngokuhlonipha i-pushrod-type camshaft, iseti yeevalvu eziphinde zalungiswa, i-crankshaft eyenziweyo kunye neepiston ze-aluminiyam ezinomxholo ophezulu wesilicon.
Nangona isizukulwana se-LS siza kuyiyeka i-LT, kungenxa yobunjineli obunje ukuba sinqwenelele eminye iminyaka engama-60 yeSmall Blocks V8 esiphumelele ngayo iChevrolet. "Isikolo esidala" okanye sangoku, UBOMI OMDE UKUYA KU-V8.
Chevy Small Block 302