Injini ye-GM LS: konke odinga ukukwazi

Umhlaba we-LS!

Ukushintsha inganekwane yanoma yiluphi uhlobo kuwumsebenzi onzima. Kodwa uma kukhulunywa ngenjini edumile yakwaChevrolet eyibhulokhi encane engu-V8 (eyaqala ngo-1954 kuya ku-2003 kumafomu eGen 1 kanye neGen 2, inika amandla yonke into kusukela ku-Corvettes kuya emalolini), noma yimuphi umndeni wenjini ozama ukuyishintsha unamabhuzu amakhulu. . .

Yiqiniso, okulindelekile okusebenzayo kanye ne-exhaust ekhishwayo ayikho embuzweni, futhi ekugcineni, i-Chevrolet idinga ukushintshwa kwebhulokhi elincane lokuqala elixazulule lezo zinkinga. Umphumela waba umndeni wenjini ye-LS.

Ukukhiqizwa kwebhulokhi encane kanye nobubanzi be-LS empeleni kwedlule iminyaka eminingana (ikakhulukazi e-US), futhi okuhlukile kokuqala kwe-LS kwavela ngo-1997.

Le thegi, eyaziwa nangokuthi injini ye-Gen 3, yaqanjwa ukuze ihlukanise i-V8 entsha kumklamo wangaphambilini we-Gen 1 kanye ne-Gen 2 yamabhulokhi amancane.

Umndeni wenjini eyi-LS V8 iyatholakala kukho kokubili i-aluminium kanye nezimo ze-cast iron crankcase, ukususwa okuhlukahlukene, futhi kukho kokubili okushibhile ngokwemvelo nokushaja okukhulu.

Njengenjini yokuqala ye-Chevy V8 yamabhulokhi amancane, injini ye-LS isetshenziswa ezigidini zezimoto ezivela kumikhiqizo ehlukahlukene ye-GM, okuhlanganisa izimoto nezimoto ezilula zentengiso.

E-Australia, sinqunyelwe (ngokomqondo wefekthri) enguqulweni ye-LS yealloy emikhiqizweni ye-Holden, izimoto ze-HSV, kanye ne-Chevrolet Camaro yakamuva.

Isikhathi esifushane, i-HSV iguqule i-Camaros yaba idrayivu engakwesokudla.

Endleleni abakwa-Australian Holdens bafakelwe i-1-litre LS5.7 yokuqala eyi-2-litre LS1999, iqale nge-VT Series 220 ka-446 efuqa amandla angu-4400kW kanye ne-torque engu-XNUMXNm edla ngo-XNUMXrpm.

I-VX Commodore ekwifomu ye-V8 iphinde yasebenzisa i-LS1, amandla anyuka kancane afinyelela ku-225kW naku-460Nm. UHolden uqhubekile nokusebenzisa injini efanayo ezinhlotsheni zeSS kanye neV8 njengoba iCommodore ishintshe iVY neVZ, enamandla afinyelela ku-250kW no-470Nm.

2004 Holden VZ Commodore SS.

Eyakamuva kakhulu kwiVZ Commodores yethule nenye engu-L76 yenjini eyi-LS, eguge ingu-6.0 litres yaphinde yanyusa kancane amandla afinyelela ku-260 kW kodwa itorque inyuke kakhulu yafinyelela ku-510 Nm.

Ngokusondelene kakhulu nalokho okwaziwa nangokuthi yi-LS2 injini, i-L76 bekuyihhashi langempela lomqondo we-LS. I-VE Commodore (kanye noCalais) V8 entsha sha yahlala ne-L76, kodwa uchungechunge olu-2 lwe-VE kanye nochungechunge lokuqala lwe-Commodore yase-Australia yokugcina, i-VF, yashintshela ku-L77, empeleni okwakuyi-L76 enekhono lokuguquguquka kwamandla. .

Izinhlobo zakamuva zeVF Series 2 V8 sezishintshele enjinini engu-6.2-litre LS3 (phambilini ebiyizinhlobo zeHSV kuphela) enamandla angu-304kW netorque engu-570Nm. Ngokukhipha amamojula amabili kanye nokunaka ngokucophelela imininingwane, lawa ma-Commodores anamandla e-LS3 asephenduke izinto zabaqoqi.

Eyokugcina kwiCommodore SS yona ibihamba ngenjini engu-6.2 litre LS3 V8.

Khonamanjalo kwaHolden Special Vehicles, injini ye-LS-family iphinde yanika amandla imikhiqizo eseCommodore kusukela ngo-1999, yashintshela ku-6.0-litre L76 ezimotweni ze-VZ ngo-2004 bese kuba ngu-6.2-litre LS3 ezimotweni ze-VZ. . Izimoto ze-E kusukela ngo-2008.

I-HSV ibilokhu iqinisa izicubu zayo okokugcina ezimotweni zayo iGen-F ezinohlobo lwe-Series 2 olusebenza ngamandla enjini engu-6.2-litre LSA enamandla okungenani angu-400kW no-671Nm.

I-GTSR W1 izoba i-HSV engcono kakhulu kuze kube phakade.

Kodwa kwakungeyona i-HSV yokugcina, futhi isakhiwo esilinganiselwe i-GTSR W1 sisebenzisa inguqulo eyakhelwe ngesandla yenjini ye-LS9 enamalitha angu-6.2, i-supercharger engu-2.3 litre, izinduku zokuxhuma i-titanium kanye nesistimu yokugcoba ye-sump eyomile. Umphumela ube amandla angu-474 kW netorque engu-815 Nm.

Izinjini ze-LS ezihlelelwe isevisi yase-Australia zifaka injini elungisiwe engu-5.7kW Callaway (USA) 300L yenguqulo ekhethekile emise okwe-VX ye-HSV, kanye nemoto yomjaho i-HRT 427 ezelwe ishonile esebenzisa i-7.0L LS7. injini isesimweni esifiselekayo ngokwemvelo, okwakhiwe kuphela ama-prototypes amabili ngaphambi kokuba iphrojekthi ichithwe ngokusobala ngenxa yezizathu zesabelomali.

Umqondo we-HRT 427.

Kuningi okunye okuphuma kokunye okuphuma ku-LS okukhona, okufana ne-LS6, ebigcinelwe ama-American Corvettes nama-Cadillacs, kanye nezinguqulo ze-LS ezisekelwe ngeloli zensimbi, kodwa ezingakaze zifike kuleyo makethe.

Ukuze wazi kahle ukuthi ubhekene nani (futhi lokhu kungase kube nzima njengoba izinketho eziningi zenjini ye-LS zingeniswe lapha ngokuyimfihlo), bheka isiqophi sekhodi senjini ye-LS esiku-inthanethi esizokutshela ukuthi iluphi uhlobo lwe-LS olufunayo.

Yini enhle nge-LS?

I-LS iza ngobukhulu obuhlukahlukene.

Injini ye-LS ihehe abalandeli abaningi eminyakeni edlule, ikakhulukazi ngoba iyisixazululo esilula kumandla we-V8.

Ithembekile, ihlala isikhathi eside, futhi yenziwa ngendlela emangalisayo, futhi iletha amandla ahloniphekile kanye ne-torque ngaphandle kwebhokisi.

Ingxenye enkulu yesikhalazo ukuthi umndeni we-LS unamandla. Besebenzisa idizayini ye-Y-block, abaklami bafaka i-LS ngamabhere amakhulu amabhawodi ayisithupha (amane anamathisele isivalo sokuthwala sibheke phezulu futhi amabili avundlile ngaphesheya kwebhulokhi), kuyilapho ama-V8 amaningi ayenamakepisi amabhawodi amane noma amabili.

Lokhu kwanikeza injini, ngisho nasebhokisini le-aluminium, ukuqina okumangalisayo futhi yasebenza njengesisekelo esihle kakhulu sokukhipha amandla amahhashi. Umdwebo wenjini okhombisa ukwakheka okungaphansi uzokhombisa maduze ukuthi kungani ukuphela kwe-LS kuthembeke kangaka.

I-LS nayo ihlangene futhi ilula. Inguqulo ye-alloy ekhanyayo yenjini ye-LS inesisindo esingaphansi kwezinye izinjini ezine-cylinder (ngaphansi kuka-180 kg) futhi ingalungiselelwa izinhlelo zokusebenza ezihlukahlukene.

Iphinde ibe idizayini yenjini ephefumula mahhala enamakhanda angamasilinda azosekela amandla amaningi kunesitoko.

Ama-LS akudala ayenalokho okubizwa ngokuthi "indawo enkulu yesonto" yamachweba amade okungena avumela ukuphefumula okujulile. Ngisho nosayizi omkhulu we-camshaft core uzwakala sengathi wenzelwe amashuna, futhi i-LS ingakwazi ukuphatha i-camshaft enkulu ngaphambi kokuthi iqale ukugcizelela yonke eminye yezakhiwo.

I-LS inesisindo esingaphansi kwezinye izinjini ezine-cylinder.

I-LS nayo kuselula ukuyithola futhi ishibhile ukuyithenga. Kudala, ama-junkyards ayegcwele ama-Commodore SS aphukile, futhi nakuba izinto zishintshile muva nje, ukuthola i-LS1 esetshenziswe kahle kulula kakhulu kunokujaha injini ye-5.0-litre Holden.

I-LS nayo iyabiza. Futhi, lokhu kushintshe kancane kusukela ku-Covid, kodwa i-LS esetshenzisiwe ngeke iphule ibhange uma iqhathaniswa nezinye.

Ngokungeziwe ekuhlakazweni okuzenzakalelayo, ukuhlukaniswa kuyindawo enhle yokuthola injini ye-LS ethengiswayo. Imvamisa, injini yokuqala ye-LS1 izothengiswa, kodwa kamuva kunezinguqulo ezingavamile kakhulu.

Enye inketho injini entsha yekhreyithi, futhi ngenxa yesidingo esikhulu somhlaba wonke, amanani anengqondo. Yebo, injini yekhreyithi ye-LSA isazokujabulisa kakhulu, kodwa lokho kuwumkhawulo, futhi kunohlu olukhulu lwezinketho kanye nezici zenjini endleleni.

Ngokwakhiwa kwesabelomali, injini ye-LS ehamba phambili iyona ongayithola ngemali encane, futhi izilungisi eziningi zinelisa ukushiya izinjini ezisetshenzisiwe ngendlela eziyiyo, ngokusekelwe ekuqineni okukhulu kweyunithi nokuthembeka.

Ukunakekela kulula, futhi ngenkathi ama-spark plugs edinga ukushintshwa njalo ngamamayela angu-80,000, i-LS inochungechunge lwesikhathi sokuphila konke (kunokuba ibhande lenjoloba).

Abanye abanikazi bahlukanise i-LSs eno-400,000 km noma i-500,000 km ku-odometer futhi bathola izinjini ezisasebenza futhi ezingagugi kakhulu ngaphakathi. 

Izinkinga

Ama-LS1 okuqala kwamanye ama-Holden abonakale engabashisi bakawoyela.

Uma injini ye-LS inesithende se-Achilles, kuzoba yi-valvetrain, eyaziwa ngokuthosa ama-hydraulic lifters nama-clog valve springs. Noma yikuphi ukuthuthukiswa kwe-camshaft kudinga ukunakwa kule ndawo, futhi ngisho nezinguqulo zakamuva zisahlushwa ukwehluleka kokuphakamisa.

Ama-LS1 asekuqaleni kakhulu kwamanye ama-Holden abonakala engabashisi bakawoyela, kodwa lokhu ngokuvamile kwakubangelwa ukuhlangana okungekuhle efekthri yaseMexico lapho akhiwa khona.

Njengoba izinga lithuthuka, kanjalo nomkhiqizo wokugcina. I-crankcase enkulu, eyisicaba, futhi engashoni iphinde isho ukuthi imoto kufanele ibe sezingeni elifanele uma ibheka izinga likawoyela, njengoba i-engeli encane ingasusa ukufundwa futhi kungenzeka kube yimbangela yokukhathazeka kwangaphambi kwesikhathi.

Abanikazi abaningi baye babhekana nohlobo lwamafutha ukuze banciphise ukusetshenziswa kukawoyela, futhi uwoyela wekhwalithi wekhwalithi uyimfuneko ku-LS.

Abanikazi abaningi babika ukuthi i-piston ishaya ngisho nezinjini ezintsha, futhi ngenkathi icasula, ayibonakali inomthelela wesikhathi eside enjinini noma impilo yayo.

Ezimweni eziningi, ukushaywa kwepiston kwanyamalala ngokushintshwa kwegiya lesibili phakathi nosuku futhi akuzange kuphinde kwenzeke kwaze kwaqala amakhaza.

Kwezinye izinjini, i-piston knock iwuphawu lokubhujiswa okuzayo. Ku-LS, njengamanye ama-light alloy engines, kubonakala sengathi kuyingxenye yesivumelwano.

Shintsha

I-V7.4 engu-8 litre twin-turbocharged kuHonda Civic… (Ikhredithi yesithombe: LS the world)

Ngenxa yokuthi inkundla enokwethenjelwa, engenziwa ngendlela oyifisayo, injini ye-LS ibidumile ngabashuni emhlabeni wonke kusukela ngosuku lokuqala.

Kodwa-ke, ukuguqulwa kokuqala okwenziwa abanikazi abaningi base-Australia bangaphambilini be-LS1 V8s kwakuwukukhipha ikhava yenjini yefektri yepulasitiki engcolile futhi basebenzise amabakaki ekhava yesitoko ukuze bafake ikhava yemakethe yangemuva yeziqephu ezimbili ekhangayo.

Ngemva kwalokho, ukunaka kuvame ukushintshela ku-camshaft enolaka, umsebenzi othile wekhanda lesilinda, ukungenisa umoya obandayo, nokulungisa kabusha ikhompuyutha yasefekthri.

I-LS iphinde iphendule kahle ohlelweni lwe-exhaust lwekhwalithi, futhi abanikazi abathile baye baba nempumelelo enkulu ngokufaka isistimu yokukhipha umoya ogeleza mahhala. Kwesinye isikhathi ngisho nesistimu yempendulo ikhipha amandla athe xaxa.

Ngaphezu kwalokho, cishe yonke into engenziwa ngenjini yenziwe nge-LS V8. Ezinye izilungisi zize zalahla umjovo ojwayelekile kaphethiloli we-elekthronikhi futhi zafaka ama-LS azo nge-high-altitude manifold kanye ne-carburetor enkulu yesitayela se-retro.

Abantu bazophonsa i-LS kunoma yini. (Ikhredithi yesithombe: LS world)

Eqinisweni, uma usudlulele ngale kwekhithi eyisisekelo yokutakula i-LS, ukuguqulwa akupheli. Sibone inqwaba yamawele kanye ne-single-turbo LS V8s (futhi injini iyakuthanda ukushaja okukhulu, njengoba kufakazelwa inguqulo ye-LSA eshajwe kakhulu).

Omunye umkhuba womhlaba wonke owokufaka ama-LS kuyo yonke into kusukela ezimotweni zemijaho kuya ezimotweni zomgwaqo zazo zonke izinhlobo nosayizi.

Ungathenga isethi yezigaxa zenjini ukuze uvumelanise i-LS nohlu olukhulu lwamamodeli namamodeli, futhi isisindo esilula se-alloy LS sisho ukuthi ngisho nezimoto ezincane zingakwazi ukuphatha lokhu kwelashwa.

E-Australia, izinkampani ezifana ne-Tuff Mounts nazo zinamathuluzi okufaka atholakalayo ukuze kulungiswe okuningi kwe-LS.

Ukuduma kwenjini kusho ukuthi ayikho neyodwa ingxenye ongeke uyithenge ye-LS V8, futhi asikho isicelo lapho ingakasetshenziswa khona. Lokhu kusho ukuthi i-aftermarket inkulu futhi isisekelo solwazi sikhulu.

Umndeni wakwaLS ungaba yi-pushrod two-valve, kodwa ngokomthelela onawo emhlabeni, awekho amanye ama-V8 amaningi (uma ekhona) angakwazi ukuwufanisa.