Isu tose takapedzisira tichifarira imwe mhando yemimhanzi, asi kune petrolheads inogona kuva sarudzo yakaoma kana iyo mimhanzi yakafanana inogadzirwa neinjini dzezvivakwa zvakasiyana.
Chinhu chimwe ndechechokwadi: the Diki Block V8 Chevy's yave ichiimba kwemakore makumi matanhatu uye icharamba ichiimba, iyo yazvino ZZ6 ichive iyo yekupedzisira kuchema, mhere mhere mumutsara wakareba.
Asi tisati taenda kumabviro, isu tinofanirwa kukusiira zvimwe zvinotariswa, kuti iwe unzwisise chaizvo musiyano pakati peV8 "Big Block" uye V8 "Small Block" , kana kuti “Big Block” uye “Diki Block”.
Small Block yakazvarwa sei uye ndeipi misiyano?
Isati yaonekwa yekutanga Diki V8, muna 1955, iyo V8 inopa yevazhinji vevaki vekuAmerica yakagadzirwa neBig Blocks. Hatidi kuiwedzera zvakanyanya, asi misiyano mikuru ndiyo inonyanya kuzivikanwa: mabhuroki makuru akakura mumuviri kupfuura zvidhinha zvidiki zvese muhurefu nehupamhi, izvo hazvireve kuti vane zvakawanda zvekutamisa, muchokwadi zvinogoneka. kuve nekusimuka kwakafanana nemabhuroko maviri.
Mabhuroko mahombe ane matanda akareba ekubatanidza, achifarira kurova kwepiston, nekudaro achigadzira torque yakawanda, asi kusakwanisa kutenderera kwakakwirira, uye ukobvu hwesimbi pakati pemadziro ecylinder hwakakurawo. Kune rimwe divi, misoro iri pakati pemabhuroko aya ine zvivakwa zvakasiyana, zvese mumakona emavharuvhu uye mumatanho akasiyana ekutonhodza uye ekuzora. Sezviri mumabhuraki pachawo, kana ari machaneli ekuzora, pamusoro pehukuru, mabhuroko pachawo ane makona akasiyana ese ari muV-kuvhura uye mumakona uye nepakati peakasimba / hydraulic impellers inofambisa madzinde evharuvhu. riri kumusoro.
Mainjiniya eChevy aiziva kuti maBig Blocks aive nenzvimbo yawo yakachengeterwa mota hombe saka paitoda kugadzira chimwe chinhu chakareruka, chine simba rakafanana, asi chinokwanisa kuburitsa simba rakawanda pamarevs akakwirira, nekudaro kuberekwa kudiki Block.
Yakanga iri muna 1955 iyo Chevy yekutanga Diki Block yakazvarwa, iyo 265 (zvichireva kugona kwayo mumacubic inches), diki 4.3 l V8 ine simba kubva 162 hp kusvika 180 hp, ine pushrod architecture uye OHV (overhead valve). Yakanga yakanaka kutsiva yakaenzana yekutamisa asi mumabhuroko emasilinda matanhatu ari mutsetse, aive aine mashoma emitambo tsinga uye ainyanya kutarisisa hupfumi hwemafuta.
akatevera chikamu 283 4.6 l, V8 iyi yaizove nebasa rekupa simba Chevy's sporty vein, uye yekutanga kufekitori-kuunganidza Rochester mechanical jekiseni system - iyi revolutionary system yakawana 1 hp per cubic inch.
The legendary 327 yaive shanduko yeSmall Block 265 yakatova nemukurumbira. Iyi 5.3 l V8 yaizoita nhoroondo mukusiyana kwayo kweL-84, yaizouya kuzoshongedzera Corvette C2 Stingray. Zvakare shanduko yejekiseni remuchina naRochester, yaizotungamira L-84 block kudhibhita 1,146 hp pa cubic inch, rekodhi yakaputswa muna 2001 nechizvarwa chechitatu cheLS6.
Isu tinopfuura kune zvakare ngano Diki Block 302 , iyi 5.0 l V8 yaizoratidza chizvarwa, sezvo midzi yekugadzirwa kwayo inouya zvakananga kubva kune zvirambidzo zvemakwikwi eTrans Am, neSCCA (Sports Car Club yeAmerica), uko mabheji makuru kupfuura 305 cubic inches akanga asingabvumirwi. Munguva yegoridhe yemakwikwi aya, kukwikwidzana pakati peCamaro Z/28 neMustang Boss 302 kwakapokana kutendeuka-ne-kutendeuka uye mune zvakatwasuka, iyo 290 hp yainzi nevakawanda yaive pedyo zvakanyanya ne350, yaive mufaro we vatyairi vendege muna 1969 Camaro Z/28.
Dambudziko remafuta uye kufambira mberi kwetekinoroji semhinduro
Mumakore makumi manomwe, dambudziko remafuta uye nguva yeSmog (kusvibiswa kwemumhepo kunokonzerwa nekubuda kwemotokari, kunoratidzwa nemhute inoumbwa nemagasi anosvibisa), ingadai yakauraya Chevy's Small Block, asi handizvo. Mainjiniya eChevrolet akapihwa basa reHerculean rekutora iyo 5.7-liter 350 block, iyo LT1, inokwanisa kuzadzisa zviyero zvezvakatipoteredza uku uine chishuwo chakayerwa. Zvakadaro 360 hp yayo yaipenya. Nekudaro, nekufa kweMuscle Cars, yakachena mhasuru yeAmerica yaizosangana nerima gumi remasimba, rakagadzirwa muL-82. Iyi Diki Block 350 yaitove ne200 hp chete, ichiita iyo Corvette mota ine mwero mabhenefiti.
Nguva dzachinja uye engineering yakashanduka, ndipo apo iyo Diki Block 350 L-98 . jekiseni remagetsi raizoita kuti zvikwanisike kudzoreredza zvimwe zvekushanda izvo Corvette naCamaro vakanga varasikirwa nazvo munguva yeSmog. Simba racho rakanga risiri kupenya, pakati pe15 ne50 hp chete rakanga rawanikwa, asi zvaive zvakawandisa kuti Corvette iite zvekutya kupfuura 240 km/h muna 1985.
Padivi peFactory Diki Blocks, chikamu cheGM Performance chagara chichipa mhinduro kumapurojekiti akasiyana aidiwa neGM Fan. THE ZZ4 , iri yechina yechizvarwa chekuita kwepamusoro Diki Block 350, ingave iyo mamiriro ehunyanzvi muna 1996 nekuda kwengano iyi 5.7 l kutamiswa kweChevrolet.
Chitsauko chinotevera: iyo LS
Dzinza reChevrolet reLS-generation Small Blocks rakatanga muna 1997. Iwe wakambonzwa nezvavo, kungave kuita kwavo, kugona kwavo kutenga, kana kuti machinjiro akaitwa nyore zvichipihwa iwo makutano akanyanya. Kubva pane yekufananidzira 5.7 l LS1 / LS6 kusvika kune hofori 7.0 l LS7, mabhuroki eLS agara akacherekedza chizvarwa chaishuvira simba, kuvimbika uye kushandisa zvine mwero, pamutengo wakaderera pane makwikwi.
Kune vanonyanyisa vesimba rechikoro chekare, GM Performance ichiri kupa, mune yengano humburumbira huwandu hwe7.4 l, iyo LSX-R 454 block. Muna 1970 yengano 454 LS6 yaive V8 Big Block iyo yakashongedzera Chevelle SS, ine simba re450. hp. Nhasi zvinogoneka kuburitsa nenzira yeN/A (yakasikwa inoshuvira) kubva kuLSX-R inopfuura 600 hp.
ZZ6, ichangoburwa
Takapedza kushanya kuburikidza neChevrolet's Small Blocks neinjini yazvino inobva kuGM Performance, ZZ6 itsva . Hongu, tsika dziri kuenderera mberi neiyi 5.7 l V8 Small Block, uye kupemberera makore makumi matanhatu aya, iyi ZZ6 iri kuwedzera pakuve ine simba kwazvo 5.7 l ever - 405 hp uye 549 Nm yakatorwa kubva mukare-quad body carb - iyi 100% simba reanalogi rinotsamira pane dzakanyatsogadzirwa LS V8 misoro. Chinangwa chaive chekuwedzera kumhanya kwekuyerera kwemhepo, ine camshaft ine hukasha asi tichiremekedza pushrod-type camshaft, seti yemavharuvhu akagadziridzwa, crankshaft yefogi uye mapiston mualuminium ane yakakwira silicon.
Kunyangwe chizvarwa cheLS chichizopa nzira kuLT, kuburikidza nehuinjiniya seizvi tinoshuvira mamwe makore makumi matanhatu eSmall Blocks V8 iyo Chevrolet yatikundisa nayo. "Chikoro Chekare" kana chemazuva ano, HUPENYU HWERE KUTI V8.
Chevy Diki Block 302