Mu rwego rwo kongera imbaraga z’ifarashi no kwimurwa kwa Corvette ZR-1, Phil Wasinger yatangiye gukora moteri ye ubwo yabonaga moteri ya LT5 yakoreshejwe kuri Craigslist mu 2014. Reba uko byagenze kuri uyu mushinga w’imyaka itandatu.
Bitewe nigishushanyo cyihariye hamwe n’umusaruro muke wa ZR-1 Corvettes ya 1990-1995, moteri ya LT5 isanzwe yifuzwa ntabwo yishimiye imikorere yanyuma nka Chevrolet, Chrysler na Ford izindi moteri zakozwe cyane. Ariko, ibyo ntibyabujije. Phil Wasinger yongeye kubaka moteri ya LT5 muri 1994 ZR-1 Corvette.
Intego nyamukuru ya moteri ya LT5 ni uko mugihe Lotus Engineering (yari ifitwe na GM muri kiriya gihe) yateguye LT5, GM yashimangiye ko bakoresha intera imwe ya silinderi, uburebure bwa sitasiyo ya silinderi, hamwe na crankshaft nyamukuru ifite umwobo wa diameter nka SB Chevy, nubwo bitabaye ibyo, Nuburyo bwa moteri itandukanye rwose, usibye kashe ya peteroli yinyuma, nta bice bihuriweho hagati yabyo. Iyo uvuye mu ruganda, blindingi ya LT5 ifata igishushanyo mbonera gifunguye, hanyuma silindiri yo hepfo iracukurwa kugirango ihuze intambwe ya 4.173˝ OD intambwe ya aluminium.
Moteri ya Wasinger yongeye kwiyubaka yatangiye mu 2014, ubwo yasangaga moteri ya LT5 yakoreshejwe kuri Craigslist.
Wasinger yagize ati: "Naguze Corvette ZR-1 yanjye yo mu 1994 mu 2007 kandi nzamura moteri hamwe na moderi zisanzwe zahinduwe na moteri idasanzwe." Ati: "Ibi birimo imitwe miremire, imikorere ya catback yuzuye, gufata ibyambu, hamwe na chip yo gutunganya imikorere. Kuri cid 350, moteri nyinshi zikora neza, zisohora ingufu zingana na 485, kandi byoroshye guhinduka 7.200 rpm. Ariko, ndashaka rwose kureba icyo igishushanyo cya moteri ya DOHC LT5 gishobora gukora wongeyeho kwimura, imitwe ya silinderi, hamwe na cam imikorere yihariye. Ibi byatangiye urugendo rwanjye rw'imyaka 6 ya 427 cid LT5. ”
Kubijyanye no gukora moteri, Phil ntabwo ari DIYer isanzwe. Mubyinshi mubikorwa bye, yakoreye uruganda runini rukora moteri ya mazutu yo mu Budage MTU Friedrichshafen na MAN Augsburg, ayobora ibikorwa byabo muri Amerika. Amato y'Abanyamerika, Ingabo z’Amerika zirinda inkombe hamwe na Sosiyete y'Abanyamerika Ibendera ry'Ubucuruzi bwohereza ibicuruzwa ni abakiriya be nyamukuru.
Ariko, bitandukanye nakazi yakoze mu mwuga we, iyi nyubako ya LT5 ni umushinga wo kwishimisha, ukorerwa cyane cyane mu igaraje ry’umuryango wa Phil. Imashini nuburinganire byakorewe mumahugurwa ye yo gutunganya moteri hafi yumujyi yavukiyemo i Fairfax, muri Virijiniya, mumajyaruguru ya Virginie. Mbere na mbere, Phil yari azi ko ashaka imbaraga nyinshi zifarashi no kwimurwa cyane.
Vasinger yagize ati: "Intego yacu ni ugutanga ingufu za 650 zoroheje kandi zizewe ku muhanda no kugenda." “Bitewe nigishushanyo cyihariye cya LT5, igikonjo cya stroke kigomba gukorerwa kuva ubusa. Crankshaft ifite umubare munini wibyobo byimbere nkumuyoboro wonyine wo gukwirakwiza amavuta kubintu nyamukuru no guhuza inkoni. Kubwamahirwe, nkomoka kumuntu wo muri Texas Umugwaneza yabonye fagitire idakoreshwa 4.00˝ crankshaft. Yabanje kuyigura kuri LT5, ariko ntiyabimenya.
"Kugirango ukoreshe crankshaft ya 4.000˝ kugirango ugere ku ntego ya cid 427, bore ya silinderi igomba kongerwa kuva kuri 3.900˝ ikagera kuri 4.125˝, bisaba kwaguka kwakirwa rya bombo. Kubwibyo, nahindukiriye Pete Polatsidis, impuguke ya moteri ya LT5 i Chicago, Yateje imbere icyuma gifunga ibyuma byangiza ibyuma na Darton Sleeves kuri moteri ya LT5. ”
LT5 ya silinderi yagenewe gukoresha 99mm ya aluminium bushing na piston byakozwe na MAHLE. Ubuso bwimbere bwumurongo bwashizweho na Nikasil kugirango butange uburebure buramba cyane. Iboneza ni igishushanyo mbonera gifunguye hamwe nigice cyo hepfo ya liner cyanyerera mu mwobo wakira wakorewe munsi yumwanya.
Kugirango ugere ku mwobo wa 4.125˝ Phil yashakaga, byabaye ngombwa ko hakoreshwa ibyuma byahinduwe bidasanzwe byuma byakozwe mbere na mbere byakozwe na Darton Sleeves kandi bigakorwa neza na Pete Polatsidis kugirango bikoreshe igishushanyo mbonera.
Ati: "Hamwe n'iki gipapuro gifunze, umurambararo w'imbere wa silinderi urashobora kwiyongera neza kugera kuri 4.125˝, kandi izindi nyungu ni uko ihagaze neza muri silinderi".
Nyuma yo gusobanukirwa kwimura crankshaft na moteri, Phil yerekeje ibitekerezo kubindi bice byimbere, nka bili ya santimetero 6 ihuza inkoni imwe ipima garama 605, ihujwe na Diamond yahimbye piston ya aluminiyumu hamwe na pisine ya offset.
Wasinger yagize ati: "Piston ifite igipimo cyo kwikuramo cya 12: 1, kandi offset pin na skirt yambarwa bigenewe kugabanya urusaku rwa piston ikonje." Ati: "Nakoresheje kandi impeta ya piston ya Total Seal-impeta yo hejuru ya 1.5mm ya molybdenum, impeta ya 1.5mm ya cone yagoretse impeta ya kabiri, n'impeta yo kugenzura amavuta ya 3mm."
Verisiyo ya LT5 yakiriye kandi Calico yometse kuri OEM kumashanyarazi nyamukuru hamwe na 2.1˝ yometse kuri Clevite 77 ku nkoni. Ikinyamakuru gisibanganya hagati yinkoni nigitereko nyamukuru cyashyizwe kuri 0.0025˝.
Ku bijyanye n'imitwe ya silinderi na gari ya moshi, Phil yerekanye ko icyumba cya LT5 enye ya silindiri umutwe w’icyumba cyaka cyagenewe kurwanya anti-knock, bigatuma ibipimo byo guhunika bikoreshwa cyane mu kuvoma umwuka. Kugirango arusheho gushiraho, umutwe wa silinderi watewe rwose kandi urageragezwa. Umwuka wo mu kirere ufunguye kugera kuri mm 37, kandi igikono cyo mu kirere nacyo cyagutse.
Ati: "Umuyoboro wambere wa 39mm wasimbuwe na Ferrea ya 42mm idafite ibyuma bitagira umuyonga hamwe na 8mm". “Intebe yo gufata ibyuma nayo yaguwe kugira ngo yungukire byuzuye kuri nini nini yo gufata. Nakoresheje kandi amasoko ya Ferrea hamwe na reta. ”
Kugirango imikorere ya valve ikore neza, Wasinger yahisemo fagitire ya billet yamashusho kuva Jones Cam Design. Usibye akazi ke bwite, Phil yavuze ko kuzenguruka ibice kuringaniza hamwe na silinderi yo mu mutwe ya valve yakozwe na Lloyd Lovelace wa Custom Automotive Machine i Lorton, muri Virijiniya. Umukino wanyuma wo guhuza ibinyabiziga bya dinometero byakozwe na Haibeck Automotive Technology i Addison, muri Illinois.
LT5 imaze guteranyirizwa hamwe no guhindurwa, Wasinger yavuze ko yabonye imbaraga za 650 yizeye. Noneho, iyi 1994 ZR-1 Corvette yagarutse mumuhanda.
Kuri iki cyumweru moteri yatewe inkunga na PennGrade Amavuta ya moteri, Elring - Das Original na Scat Crankshafts. Niba ufite moteri ushaka kwerekana muri uru ruhererekane, nyamuneka ohereza imeri kuri [imeri irinzwe] Umwanditsi wubaka moteri Greg Jones
Igihe cyo kohereza: Nzeri-13-2021
