Pofuna kuonjezera mphamvu ya akavalo ndi kusamuka kwa Corvette ZR-1 yake, Phil Wasinger anayamba kupanga injini yake pamene adapeza injini ya LT5 yogwiritsidwa ntchito pa Craigslist mu 2014. Yang'anani zomwe zinachitika ku polojekitiyi ya zaka zisanu ndi chimodzi.
Chifukwa cha kapangidwe kake komanso kupanga kocheperako kwa 1990-1995 ZR-1 Corvettes, injini ya LT5 yofunidwa mwachilengedwe sinasangalale ndi msika wotsatira monga Chevrolet, Chrysler ndi ma injini ena opangidwa ndi Ford. Komabe, izi sizinaimitse. Phil Wasinger adamanganso injini yake ya LT5 mu 1994 ZR-1 Corvette.
Cholinga chachikulu cha injini ya LT5 chinali chakuti pamene Lotus Engineering (yomwe inali ndi GM panthawiyo) inapanga LT5, GM inaumirira kuti agwiritse ntchito malo omwewo amtundu wa silinda, kutalika kwa silinda ya silinda, ndi kukula kwa dzenje la crankshaft monga SB Chevy, ngakhale apo ayi, ndi injini yosiyana kwambiri, kupatulapo chisindikizo cha mafuta a crankshaft, palibe magawo wamba pakati pawo. Mukachoka kufakitale, chipika cha silinda cha LT5 chimatengera kapangidwe kamene kamakhala kotseguka, ndipo chotchinga chapansi cha silinda chimabowoleredwa kuti chigwirizane ndi 4.173 OD sitepe ya aluminiyamu.
Kumanganso kwa injini ya Wasinger kudayamba mu 2014, pomwe adapeza injini ya LT5 yogwiritsidwa ntchito pa Craigslist.
"Ndidagula 1994 Corvette ZR-1 yanga mu 2007 ndikukweza injini ndi zosintha zanthawi zonse za bawuti zoyenera injini zapaderazi," adatero Wasinger. "Izi zikuphatikizanso mitu yayitali yamapaipi, kutulutsa kwamphamvu kwapang'onopang'ono, kutengera madoko, komanso tchipisi tating'onoting'ono. Kwa 350 cid, ma injini ambiri amathamanga bwino, amatulutsa mphamvu pafupifupi 485, ndipo amatembenukira ku 7,200 rpm mosavuta. Komabe, ndikufunadi kuwona zomwe injini ya DOHC LT5 ingachite powonjezera kusamuka, mitu ya silinda, ndi makamera ochita makonda. Izi zidayamba ulendo wanga wazaka 6 wa 427 cid LT5. "
Pankhani yopanga injini, Phil si DIYer wamba. Kwa nthawi yambiri ya ntchito yake, wakhala akugwira ntchito kwa opanga injini za dizilo ku Germany MTU Friedrichshafen ndi MAN Augsburg, akutsogolera ntchito zawo ku United States. US Navy, US Coast Guard ndi American Flag Commercial Shipping Company ndi makasitomala ake akuluakulu.
Komabe, mosiyana ndi ntchito yomwe wachita pantchito yake, ntchito yomanga ya LT5 iyi ndi ntchito yosangalatsa yaumwini, yomwe imachitika makamaka m'galaja la banja la Phil. Ntchito yamakina ndi kusanja zidachitika pamalo ake opangira makina am'deralo pafupi ndi kwawo ku Fairfax, Virginia, kumpoto kwa Virginia. Choyamba, Phil adadziwa kuti akufuna mahatchi ambiri komanso kusamuka kwawo.
"Cholinga chathu ndikupereka mahatchi osalala komanso odalirika a 650 pamseu ndikuyenda panyanja," adatero Vasinger. "Chifukwa cha kapangidwe kake ka LT5, crankshaft iyenera kupangidwa kuchokera pomwe palibe kanthu. Crankshaft ili ndi zibowo zambiri zamkati monga njira yokhayo yogawa mafuta panjira yayikulu komanso yolumikizira ndodo. Mwamwayi, ndinali wochokera ku Texas Bamboyo adapeza billet 4.00˝ crankshaft yachitsulo yosagwiritsidwa ntchito. Poyamba adagula mtundu wa LT5, koma adalephera kuzindikira.
"Kuti mugwiritse ntchito 4.000˝ stroke crankshaft kuti mufike pa 427 cid, bore la silinda liyenera kuonjezedwa kuchoka pa 3.900˝ kufika pa 4.125˝, zomwe zimafunika kukulitsa kwa silinda yolandila. Pachifukwa ichi, ndinatembenukira kwa Pete Polatsidis, katswiri wa injini ya LT5 ku Chicago, Anapanga makina otsekedwa a ductile iron bushing conversion ndi Darton Sleeves kwa injini ya LT5.
LT5 silinda block idapangidwa kuti igwiritse ntchito 99mm aluminiyamu bushings ndi ma pistoni opangidwa ndi MAHLE. Pakatikati pa chinsalucho chimakutidwa ndi Nikasil kuti apereke malo olimba kwambiri osavala. Kukonzekera ndi mawonekedwe otseguka a sitimayo ndi gawo lapansi la liner lomwe limalowetsedwa mu dzenje lolandirira lomwe limapangidwa pansi pa chipikacho.
Kuti akwaniritse dzenje la 4.125˝ lomwe Phil ankafuna, kunali koyenera kugwiritsa ntchito chitsulo chosinthidwa mwapadera chomwe chinapangidwa ndi Darton Sleeves ndipo chinakonzedwa ndi Pete Polatsidis kuti agwiritse ntchito mapangidwe otsekedwa.
"Ndi chotchinga chotsekeka ichi, silinda yamkati mwake imatha kukulitsidwa mpaka 4.125˝, ndipo ubwino wina ndikuti imakhala yokhazikika mu silinda," adatero.
Atamvetsetsa za crankshaft ndi kusamuka kwa injini, Phil adatembenukira kuzinthu zina zamkati, monga ndodo zolumikizira 6-inch billet iliyonse yolemera magalamu 605, yophatikizidwa ndi ma pistoni a aluminium opangidwa ndi Daimondi okhala ndi zokutira masiketi ndi zikhomo.
"Pistoni ili ndi chiŵerengero cha 12: 1, ndipo pini yophimba ndi masiketi amapangidwa makamaka kuti achepetse phokoso lozizira la pistoni," adatero Wasinger. "Ndinagwiritsanso ntchito mphete za Total Seal piston - mphete ya 1.5mm yosungunuka ya molybdenum, mphete yachiwiri yopindika ya 1.5mm, ndi mphete yowongolera mafuta ya 3mm."
Mtundu wa LT5 udalandiranso zokhala ndi Calico zokutira-OEM pamagetsi akulu ndipo 2.1˝ idakutira ma bere a Clevite 77 pandodo. Chilolezo cha magazini pakati pa ndodo ndi chotengera chachikulu chimayikidwa pa 0.0025˝.
Ponena za mitu ya silinda ndi masitima apamtunda a valve, Phil adanenanso kuti chipinda choyaka moto cha LT5 chokhala ndi ma valve anayi chapangidwa kuti chikhale chotsutsana kwambiri ndi kugogoda, kulola kuti ma compression apamwamba agwiritsidwe ntchito popopera mpweya. Pofuna kukulitsa kukhazikitsidwa kwake, mutu wa silinda udasinthidwa kwathunthu ndikuyesedwa. Kulowetsa mpweya kumatsegulidwa mpaka 37 mm, ndipo mbale yolowera mpweya imakulitsidwanso.
"Vavu yoyambira ya 39mm idasinthidwa ndi valavu ya Ferrea ya 42mm yachitsulo chosapanga dzimbiri yokhala ndi tsinde la 8mm," adatero. "Mpando wa valve wolowetsamo adakulitsidwanso kuti agwiritse ntchito bwino valavu yayikulu yolowera. Ndinagwiritsanso ntchito akasupe a Ferrea ndi zosungira. ”
Kuti makina a valve agwire bwino ntchito, Wasinger anasankha camshaft ya billet kuchokera ku Jones Cam Design. Kuphatikiza pa ntchito yakeyake, Phil adanenanso kuti ntchito yozungulira yozungulira komanso valavu yamutu ya silinda idachitidwa kwanuko ndi Lloyd Lovelace wa Custom Automotive Machine ku Lorton, Virginia. Kumaliza kwa kukonza kwa dynamometer yamagalimoto kudachitika ndi Haibeck Automotive Technology ku Addison, Illinois.
LT5 itasonkhanitsidwa kwathunthu ndikusinthidwa, Wasinger adati adapeza mphamvu zokwana 650 zomwe amayembekezera. Tsopano, 1994 ZR-1 Corvette uyu wabwereranso mumsewu.
Sabata ino injiniyi idathandizidwa ndi PennGrade Motor Oil, Elring - Das Original ndi Scat Crankshafts. Ngati muli ndi injini yomwe mukufuna kuwunikira mndandandawu, chonde tumizani imelo kwa [imelo yotetezedwa] Mkonzi wa Engine Builder Greg Jones
Nthawi yotumiza: Sep-13-2021
