GM LS engine: nā mea āpau e pono ai ʻoe e ʻike

LS honua!

He hana paʻakikī ka hoʻololi ʻana i ka moʻolelo o kēlā me kēia ʻano. Akā i ka hiki ʻana mai i ka ʻenekini V8 kaulana kaulana o Chevrolet (i holo mai 1954 a 2003 i nā ʻano Gen 1 a me Gen 2, e hoʻohana ana i nā mea āpau mai Corvettes a hiki i nā kaʻa kiʻi), ʻo kēlā me kēia ʻohana mīkini e hoʻāʻo nei e pani iā ​​ia he mau kāmaʻa nui. . .

ʻOiaʻiʻo, ʻaʻohe pilikia o ka manaʻo o ka hana a me ka hoʻokuʻu ʻana, a i ka hopena, makemake ʻo Chevrolet i kahi pani no ka poloka liʻiliʻi kumu i hoʻoponopono i kēlā mau pilikia. ʻO ka ʻohana ʻenekini LS ka hopena.

ʻO ka hana ʻana o ka poloka liʻiliʻi a me ka laulā LS ua uhi maoli ʻia no kekahi mau makahiki (ka hapa nui ma US), me ka ʻano ʻano LS mua i ʻike ʻia ma 1997.

ʻO kēia tag, i ʻike ʻia ʻo ka Gen 3 engine, i hana ʻia e hoʻokaʻawale i ka V8 hou mai ka hoʻolālā mua ʻo Gen 1 a me Gen 2 mau poloka liʻiliʻi.

Loaʻa ka ʻohana ʻenehana modular LS V8 i nā ʻano alumini a me nā ʻano pahu pahu hao, nā hoʻoneʻe like ʻole, a ma nā hoʻonohonoho kūlohelohe a me supercharged.

E like me ka mīkini pahu liʻiliʻi Chevy V8 mua, hoʻohana ʻia ka ʻenekini LS i nā miliona o nā kaʻa mai nā hōʻailona GM like ʻole, me nā kaʻa a me nā kaʻa kalepa māmā.

Ma Australia, ua kaupalena ʻia mākou (ma ke ʻano o ka hale hana) i ka mana LS alloy i nā huahana branded Holden, nā kaʻa HSV, a me ka Chevrolet Camaro hou loa.

No ka manawa pōkole, ua hoʻohuli ʻo HSV i ka Camaros i ka hoʻokele lima ʻākau.

Ma ke ala, ua hoʻokomo ʻia ʻo Australian Holdens me ka ʻike mua o ka 1-lita LS5.7, e hoʻomaka ana me ka 2 VT Series 1999, ka mea i kaena ʻo 220kW a me 446Nm o ka torque ma kahi kiʻekiʻe 4400rpm.

Ua hoʻohana pū ka VX Commodore ma V8 i ka LS1, me ka piʻi iki o ka mana i 225kW a me 460Nm. Ua hoʻomau ʻo Holden i ka hoʻohana ʻana i ka mīkini like no kāna mau hiʻohiʻona SS a me V8 e like me ka hoʻololi ʻana o Commodore ma luna o nā hiʻohiʻona VY a me VZ, me ka hopena kiʻekiʻe o 250kW a me 470Nm.

2004 Holden VZ Commodore SS.

ʻO ka mea hou loa o ka VZ Commodores i wehe pū i ka L76 version o ka LS engine, nona ka huina o 6.0 lita a hāʻawi i kahi piʻi iki o ka mana i 260 kW akā ʻoi aku ka piʻi nui o ka torque i 510 Nm.

Pili loa i ka mea i ʻike ʻia ʻo ka engine LS2, ʻo ka L76 ka mea hana maoli o ka manaʻo LS. ʻO ka VE Commodore (a me Calais) V8 hou loa i noho me ka L76, akā ʻo ka 2 series VE a me ka moʻo mua o ka Australian Commodore hope loa, ka VF, ua hoʻololi ʻia i ka L77, ʻo ia hoʻi he L76 me ka mana flex-fuel. .

Ua hoʻololi ʻia nā hiʻohiʻona VF Series 2 V8 hou i kahi ʻenekini 6.2-lita LS3 (nā hiʻohiʻona HSV ma mua wale nō) me 304kW a me 570Nm o ka torque. Me ka lua-module exhaust a meticulous noonoo i ka kiko'ī, keia LS3-powered Commodores ua lilo i mea ohi.

ʻO ka hope loa o ka Commodore SS i hoʻohana ʻia e kahi ʻenekini 6.2 lita LS3 V8.

I kēia manawa ma Holden Special Vehicles, ua hoʻoikaika pū ka mīkini ʻohana LS i nā huahana Commodore-based mai 1999, me kahi hoʻololi i ka 6.0-lita L76 no nā kaʻa VZ ma 2004 a laila i ka 6.2-lita LS3 no nā kaʻa VZ. . Nā kaʻa E-series mai ka makahiki 2008.

Ke hoʻoluliluli nei ʻo HSV i kona mau ʻiʻo no ka hurray hope loa o kāna mau kaʻa Gen-F me kahi mana Series 2 i hoʻohana ʻia e kahi ʻenekini 6.2-lita LSA supercharged me ka liʻiliʻi o 400kW a me 671Nm.

ʻO ka GTSR W1 ka HSV maikaʻi loa.

ʻAʻole naʻe ʻo ia ka HSV hope loa, a ʻo ka GTSR W1 i kūkulu ʻia i hoʻohana ʻia i ka mana hana lima o ka mīkini LS9 me 6.2 lita, kahi supercharger 2.3 lita, nā koʻokoʻo hoʻohui titanium a me kahi ʻōnaehana lubrication sump maloʻo. ʻO ka hopena hopena he 474 kW o ka mana a me 815 Nm o ka torque.

ʻO nā ʻenekini LS i manaʻo ʻia no ka lawelawe ʻana ma Australia ua komo pū me kahi ʻenekini 5.7kW Callaway (USA) 300L i hoʻololi ʻia no kahi ʻano VX kūikawā o ka HSV, a me kahi kaʻa heihei HRT 427 i hānau ʻia i hoʻohana i ka 7.0L LS7. ʻenekini i loko o ke ʻano aspirated kūlohelohe, ʻelua wale nō prototypes i kūkulu ʻia ma mua o ka ʻoki ʻia ʻana o ka papahana no nā kumu kālā.

ʻO ka manaʻo HRT 427.

Nui nā huaʻōlelo ʻē aʻe o ka LS, e like me ka LS6, i mālama ʻia no ʻAmelika Corvettes a me Cadillacs, a me nā mana kalaka hao hao o ka LS, akā ʻaʻole i hiki i kēlā mākeke.

No ka ʻike pono ʻana i kāu mea e hana nei (a hiki ke paʻakikī kēia no ka mea ua lawe pilikino ʻia nā koho mīkini LS he nui ma aneʻi), e ʻimi i kahi decoder helu mīkini LS pūnaewele e haʻi iā ʻoe i ka ʻano LS āu e ʻimi nei.

He aha ka maikaʻi o LS?

Hele mai ʻo LS i nā ʻano nui like ʻole.

Ua loaʻa i ka ʻenekini LS ka mea nui ma hope o nā makahiki, ʻo ka hapa nui no ka mea he hopena maʻalahi ia i ka mana V8.

He hilinaʻi, lōʻihi, a kupaianaha hoʻi, a hāʻawi i ka mana kūpono a me ka torque ma waho o ka pahu.

ʻO kahi hapa nui o ka hoʻopiʻi he ikaika ka ʻohana LS. I ka hoʻohana ʻana i ka hoʻolālā Y-block, ua hoʻokomo nā mea hoʻolālā i ka LS me nā bearings nui ʻeono-bolt (ʻehā e hoʻopili ana i ka pāpale bearing ma ke kū pololei a ʻelua ma ka ʻaoʻao o ka ʻaoʻao o ka poloka), ʻoiai ʻo ka hapa nui o nā V8 he ʻehā a ʻelua paha mau pōleʻa ʻelua.

Hāʻawi kēia i ka ʻenekini, ʻoiai i loko o kahi pahu alumini, paʻakikī koʻikoʻi a lilo i kumu kumu maikaʻi loa no ka unuhi ʻana i ka horsepower. E hōʻike koke ʻia kahi kiʻi ʻenekini e hōʻike ana i ka hoʻolālā kumu i ke kumu i hilinaʻi nui ʻia ai ka hopena o lalo o LS.

ʻO ka LS he mea maʻalahi a māmā hoʻi. ʻO ke kaumaha o ka mīkini LS māmā ma mua o kekahi mau mīkini ʻehā-cylinder (emi ma lalo o 180 kg) a hiki ke hoʻonohonoho ʻia no nā ʻano hana like ʻole.

He hoʻolālā mīkini hanu manuahi me nā poʻo cylinder e kākoʻo nui aku i ka mana ma mua o ka waihona.

Ua kapa ʻia nā LS mua i nā awa "cathedral" no nā awa komo kiʻekiʻe e hiki ai ke hanu hohonu. ʻOiai ke ʻano nui o ka camshaft core i hana ʻia no nā tuners, a hiki i ka LS ke mālama i kahi camshaft nui ma mua o ka hoʻomaka ʻana e koʻikoʻi i ke koena o ka hoʻolālā.

ʻOi aku ke kaumaha o ka LS ma mua o kekahi mau ʻenekini ʻehā pahu.

He mea maʻalahi nō hoʻi ka LS e kiʻi a kūʻai aku. I kekahi manawa, ua piha nā hale ʻōpala i nā Commodore SSs i wāwahi ʻia, a ʻoiai ua loli iki nā mea, ʻoi aku ka maʻalahi o ka loaʻa ʻana o kahi LS1 maikaʻi ma mua o ka hahai ʻana i kahi mīkini Holden 5.0-lita.

Maikaʻi ke kumu kūʻai o LS. Eia hou, ua loli iki kēia mai Covid, akā ʻaʻole e uhaʻi kahi LS i hoʻohana ʻia i ka panakō ke hoʻohālikelike ʻia i nā koho.

Ma waho aʻe o ka wehe ʻana i nā kaʻa, he wahi maikaʻi hoʻi nā hoʻolaha e loaʻa ai kahi mīkini LS no ke kūʻai aku. ʻO ka pinepine, e kūʻai ʻia ka mīkini LS1 mua, akā ma hope e loaʻa hou nā mana exotic.

ʻO kahi koho ʻē aʻe ʻo ke kaʻa crate hou, a mahalo i ka noi nui honua, kūpono nā kumukūʻai. ʻAe, e hāʻawi mau ana ka LSA crate engine iā ʻoe i ka leʻaleʻa he nui, akā ʻo ia ka palena, a aia ka nui o nā koho a me nā kikoʻī engine ma ke ala.

No ke kūkulu kālā, ʻo ka mīkini LS maikaʻi loa ka mea hiki iā ʻoe ke loaʻa no kahi uku liʻiliʻi, a nui nā mea hoʻololi e ʻoluʻolu e waiho i nā ʻenekini i hoʻohana ʻia e like me lākou, e pili ana i ka lōʻihi a me ka hilinaʻi o ka ʻāpana.

He maʻalahi ka mālama ʻana, a ʻoiai pono e hoʻololi ʻia nā pahu kukui i kēlā me kēia 80,000 mau mile, loaʻa i ka LS ke kaulahao manawa ola (ma mua o ke kāʻei ʻōpala).

Ua hoʻokaʻawale kekahi mau mea nona nā LS me 400,000 km a i ʻole 500,000 km ma ka odometer a loaʻa nā ʻenekini i hiki ke lawelawe me ka liʻiliʻi o ka lole kūloko. 

Nā pilikia

ʻO nā LS1 mua i kekahi mau Holden i hōʻike ʻia he mea puhi ʻaila.

Inā he Achilles ku'eku'e ko ka engine LS, 'o ia ka valvetrain, ka mea i 'ike 'ia no ka ho'omo'a 'ana i ka hydraulic lifters a ho'opa'a i nā puna valve. Pono ka hoʻomaikaʻi ʻana i ka camshaft i kēia wahi, a ʻo nā ʻano hope aʻe i loaʻa i ka hemahema o ka lifter.

ʻO nā LS1 mua loa i kekahi mau Holden i hōʻike ʻia he mau mea puhi ʻaila, akā ʻike pinepine ʻia kēia i ka hui maikaʻi ʻole ma ka hale hana Mekiko kahi i kūkulu ʻia ai.

E like me ka hoʻomaikaʻi ʻana o ka maikaʻi, pēlā pū ka huahana hope. ʻO ka pahu pahu nui, palahalaha, pāpaʻu hoʻi, pono ke kaʻa ma luna o kahi ʻili kūpono i ka wā e nānā ai i ka pae ʻaila, no ka mea hiki ke hoʻolei i ka heluhelu ʻana i kahi kihi liʻiliʻi a ʻo ia paha ke kumu o ka hopohopo mua.

He nui nā mea nona ka ʻaila i hoʻopili i ke ʻano o ka aila e hōʻemi ai i ka hoʻohana ʻana i ka aila, a he mea pono ka aila ʻenekini maikaʻi no kahi LS.

He nui nā mea nona ka hōʻike ʻana i kekahi kīkē piston me nā ʻenekini hou, a ʻoiai e hoʻonāukiuki ana, ʻaʻole ia he hopena lōʻihi i ka ʻenekini a i kona ola.

I ka nui o nā hihia, ua nalowale ke kīkēkē ʻana o ka piston ma ka hoʻololi ʻana o ke kaʻa lua i ka lā a ʻaʻole i hoʻi hou a hiki i ka hoʻomaka ʻana o ke anu.

I kekahi mau ʻenekini, ʻo ka piston knock kahi hōʻailona o ka pōʻino e hiki mai ana. I ka LS, e like me nā ʻenekini māmā ʻē aʻe, manaʻo ia he ʻāpana wale nō ia o ka ʻaelike.

Hoʻololi

ʻO ka 7.4-lita māhoe-turbocharged V8 wale nō i ka Honda Civic… (Kiʻi kiʻi: LS ka honua)

No ka mea he kahua hilinaʻi a hiki ke hoʻopilikino ʻia, ua kaulana ka ʻenekini LS me nā tuner a puni ka honua mai ka lā hoʻokahi.

Eia naʻe, ʻo ka hoʻololi mua i hana ʻia e ka hapa nui o ka poʻe Australia nona nā LS1 V8s mua, ʻo ia ka wehe ʻana i ka uhi ʻenekini hale hana palaka palaka a hoʻohana i nā pale uhi waihona e hoʻokomo i kahi uhi ʻelua ʻāpana hope loa.

Ma hope o kēlā, huli pinepine ka manaʻo i kahi camshaft ʻoi aku ka ikaika, kekahi hana poʻo cylinder, ke komo ʻana o ka ea anuanu, a me ka hoʻihoʻi ʻana i ka kamepiula hale hana.

Ua pane maikaʻi ka LS i kahi ʻōnaehana hoʻopau maikaʻi, a ua lanakila nui kekahi mau mea nona ma ka hoʻokomo ʻana i kahi ʻōnaehana hoʻokuʻu manuahi. I kekahi manawa, hoʻokuʻu iki ka ʻōnaehana manaʻo.

Eia kekahi, kokoke i nā mea a pau e hiki ke hana me ka mīkini i hana ʻia me ka LS V8. Ua haʻalele kekahi mau mea hoʻololi i ka ʻenekini uila uila maʻamau a hoʻokomo i kā lākou LS me kahi manifold kiʻekiʻe a me ka carburetor nui no ke ʻano retro.

E hoʻolei nā kānaka iā LS i kekahi mea. (Kiʻi kiʻi: LS honua)

ʻOiaʻiʻo, ke hele ʻoe ma mua o ka pahu hoʻolaʻa LS kumu, pau ʻole nā ​​​​hoʻololi. Ua ʻike mākou i ka māhoe a me ka single-turbo LS V8s (a makemake ka ʻenekini i ka supercharging, e like me ka mea i hōʻike ʻia e ka mana supercharged o ka LSA).

ʻO ke ʻano ʻē aʻe o ke ao holoʻokoʻa, ʻo ia ka hoʻokomo ʻana i nā LS i nā mea āpau mai nā kaʻa heihei a i nā kaʻa alanui o nā ʻano a me nā nui.

Hiki iā ʻoe ke kūʻai i pūʻulu o nā puʻu mīkini e hoʻopili i ka LS i kahi ʻano nui o nā mea hana a me nā hiʻohiʻona, a ʻo ke kaumaha māmā o ka alloy LS ʻo ia hoʻi, hiki i nā kaʻa liʻiliʻi ke mālama i kēia mālama.

Ma Australia, loaʻa i nā hui e like me Tuff Mounts nā pahu hoʻokomo i loaʻa no nā hoʻololi LS he nui.

ʻO ka kaulana loa o ka ʻenekini, ʻo ia hoʻi, ʻaʻohe ʻāpana hiki ʻole iā ʻoe ke kūʻai no ka LS V8, a ʻaʻohe palapala noi i hoʻohana ʻole ʻia. ʻO ia ke ʻano he nui ka aftermarket a he ākea ka waihona ʻike.

Hiki i ka ʻohana LS ke pushrod ʻelua-valve, akā ma ke ʻano o ka hopena i loaʻa i ka honua, ʻaʻohe nui (inā loaʻa) nā ʻenekini V8 ʻē aʻe e hiki ke hoʻohālikelike me ia.