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Tuam Tshoj tsum silicone kaus valve / duckbill check valve

Txhawm rau ua kom lub zog horsepower thiab tshem tawm ntawm nws Corvette ZR-1, Phil Wasinger pib nws lub cav tsim thaum nws pom lub cav siv LT5 ntawm Craigslist hauv 2014. Ua tib zoo saib seb qhov twg tau tshwm sim rau qhov project rau xyoo no.
Vim qhov tsim tshwj xeeb thiab txwv kev tsim tawm ntawm 1990-1995 ZR-1 Corvettes, lub cev muaj zog LT5 lub cav tsis txaus siab rau qhov kev ua tau zoo tom qab muag xws li Chevrolet, Chrysler thiab Ford lwm lub tshuab tsim tawm ntau. Txawm li cas los xij, qhov no tsis tau tso tseg. Phil Wasinger rov tsim nws lub cav LT5 hauv nws 1994 ZR-1 Corvette.
Lub hom phiaj tseem ceeb ntawm lub cav LT5 yog tias thaum Lotus Engineering (muaj los ntawm GM thaum lub sijhawm) tsim lub LT5, GM hais tias lawv siv tib lub tog raj kheej qhov sib nrug, lub tog raj kheej thaiv qhov siab, thiab crankshaft lub ntsiab bearing qhov taub raws li SB Chevy, Txawm hais tias txwv tsis pub, Nws yog qhov sib txawv ntawm lub cav tsim, tshwj tsis yog rau lub crankshaft rear roj foob, tsis muaj qhov sib txawv ntawm lawv. Thaum tawm hauv lub Hoobkas, lub LT5 lub tog raj kheej thaiv tau txais kev tsim qauv qhib, thiab lub tog raj kheej qis yog drilled kom haum rau 4.173˝ OD kauj ruam aluminium hauv ob sab phlu.
Wasinger lub cav rov tsim kho tau pib hauv 2014, thaum nws pom lub cav siv LT5 ntawm Craigslist.
Wasinger tau hais tias "Kuv tau yuav kuv 1994 Corvette ZR-1 hauv 2007 thiab hloov kho lub cav nrog kev hloov kho ib txwm muaj rau cov tshuab tshwj xeeb no," Wasinger tau hais. "Qhov no suav nrog cov yeeb nkab ntev ntev, kev ua haujlwm catback tso pa tawm, qhov chaw nres nkoj kom tsawg, thiab kev ua haujlwm tuning chips. Rau 350 cid, feem ntau cov cav tov ua haujlwm zoo, tso tawm txog 485 horsepower, thiab yooj yim tig mus rau 7,200 rpm. Txawm li cas los xij, kuv xav pom dab tsi DOHC LT5 lub cav tsim tuaj yeem ua tau los ntawm kev ntxiv cov kev hloov pauv, lub tog raj kheej taub hau, thiab kev ua haujlwm cams. Qhov no tau pib kuv 6-xyoo epic taug kev ntawm 427 cid LT5. "
Hais txog kev tsim lub cav, Phil tsis yog DIYer zoo tib yam. Rau feem ntau ntawm nws cov hauj lwm, nws tau ua hauj lwm rau lub loj German diesel cav manufacturers MTU Friedrichshafen thiab MAN Augsburg, coj lawv cov hauj lwm nyob rau hauv lub tebchaws United States. US Navy, US Coast Guard thiab American Flag Commercial Shipping Company yog nws cov neeg siv khoom loj.
Txawm li cas los xij, tsis zoo li cov haujlwm uas nws tau ua hauv nws txoj haujlwm, qhov kev tsim kho LT5 no yog qhov haujlwm nyiam ntawm tus kheej, feem ntau ua hauv Phil tsev neeg lub tsev nres tsheb. Lub tshuab ua haujlwm thiab kev sib npaug tau ua tiav hauv nws lub tshuab tshuab machining chaw nyob ze nws lub nroog hauv Fairfax, Virginia, nyob rau sab qaum teb Virginia. Ua ntej tshaj plaws, Phil paub tias nws xav tau horsepower ntau dua thiab hloov chaw ntau dua.
Vasinger tau hais tias "Peb lub hom phiaj yog los muab lub zog 650 horsepower thiab txhim khu kev qha rau txoj kev thiab caij nkoj," Vasinger tau hais. "Vim qhov tsim tshwj xeeb ntawm LT5, stroke crankshaft yuav tsum tau ua los ntawm qhov khoob. Lub crankshaft muaj ntau ntawm cov boreholes sab hauv uas tsuas yog cov roj faib channel rau lub ntsiab bearing thiab txuas pas nrig bearing. Hmoov zoo, kuv yog los ntawm ib tug neeg nyob rau hauv Texas Tus txiv neej tau txais ib tug tsis siv steel billet 4.00˝ crankshaft. Nws Ameslikas yuav nws rau LT5 version, tab sis ua tsis tiav nws.
"Yuav kom siv 4.000˝ stroke crankshaft kom ncav cuag lub hom phiaj ntawm 427 cid, lub tog raj kheej bore yuav tsum tau nce los ntawm 3.900˝ mus rau 4.125˝, uas yuav tsum tau nthuav dav ntawm lub tog raj kheej receiver bore. Rau qhov no, kuv tig mus rau Pete Polatsidis, tus kws tshaj lij LT5 lub cav hauv Chicago, Nws tau tsim lub lawj kaw cov hlau bushing hloov dua siab tshiab thiab Darton Lub Tes Tsho rau lub cav LT5. "
LT5 lub tog raj kheej thaiv yog tsim los siv 99mm txhuas bushings thiab pistons tsim los ntawm MAHLE. Sab hauv ntawm lub hauv ob sab phlu yog coated nrog Nikasil los muab ib tug heev ruaj hnav-resistant nto. Kev teeb tsa yog ib qho qhib lawj tsim nrog rau sab qis ntawm lub liner slidingly haum rau hauv lub receiver qhov machined rau hauv qab ntawm lub thaiv.
Yuav kom ua tiav qhov 4.125˝ qhov uas Phil xav tau, nws yog ib qho tsim nyog yuav tsum tau siv cov txheej txheem tshwj xeeb uas hloov cov hlua hlau uas yog tsim los ntawm Darton Lub Tes Tsho thiab txhim kho los ntawm Pete Polatsidis kom siv lub lawj kaw.
"Nrog rau lub lawj kaw no, lub tog raj kheej sab hauv txoj kab uas hla tuaj yeem ruaj ntseg nce mus rau 4.125˝, thiab lwm qhov zoo dua yog tias nws ruaj khov dua hauv lub tog raj kheej," nws hais.
Tom qab nkag siab txog lub crankshaft thiab lub cav txav, Phil tig nws lub siab rau lwm yam khoom siv sab hauv, xws li 6-nti billet txuas rods txhua qhov hnyav 605 grams, ua ke nrog kev cai Pob Zeb Diamond forged aluminium pistons nrog tiab coatings thiab offset pins.
Wasinger tau hais tias "Lub piston muaj qhov sib piv ntawm 12: 1, thiab tus pin offset thiab daim tiab txheej yog tsim tshwj xeeb los txo cov suab nrov ntawm piston txias," Wasinger tau hais. "Kuv kuj tau siv Total Seal piston rings-a 1.5mm malleable molybdenum top nplhaib, 1.5mm malleable cone twisted thib ob nplhaib, thiab 3mm roj tswj lub nplhaib."
LT5 version kuj tau txais Calico coated bearings-OEM ntawm lub ntsiab fais fab mov thiab 2.1˝ coated Clevite 77 bearings ntawm tus pas nrig. Cov ntawv xov xwm tshem tawm ntawm tus pas nrig bearing thiab lub ntsiab bearing yog ntsia ntawm 0.0025˝.
Thaum nws los txog rau lub tog raj kheej taub hau thiab lub tsheb ciav hlau valve, Phil tau taw qhia tias LT5 plaub lub tog raj kheej lub tog raj kheej lub taub hau combustion chamber yog tsim los ua kom muaj kev tiv thaiv zoo heev, tso cai rau cov compression ntau dua los siv thaum nqus cua. Txhawm rau kom ua tiav nws qhov teeb tsa, lub tog raj kheej lub taub hau tau hloov pauv tag nrho thiab ntsuas ntws. Cov cua nkag tau qhib mus txog 37 hli, thiab cov cua nkag lub tais kuj tseem loj.
"Tus thawj 39mm intake valve tau hloov los ntawm Ferrea's 42mm stainless hlau valve nrog 8mm qia," nws hais. "Lub rooj noj mov lub rooj zaum kuj tau nthuav dav kom tau txais txiaj ntsig zoo ntawm lub rooj noj mov loj dua. Kuv kuj siv Ferrea springs thiab retainers. "
Txhawm rau ua kom lub valve ua haujlwm kom zoo, Wasinger tau xaiv qhov kev cai billet camshaft los ntawm Jones Cam Tsim. Ntxiv rau nws tus kheej ua haujlwm, Phil tau hais tias kev sib hloov qhov sib npaug thiab kev cai lub tog raj kheej lub taub hau valve ua haujlwm tau ua hauv zos los ntawm Lloyd Lovelace ntawm Custom Automotive Machine hauv Lorton, Virginia. Qhov kawg ntawm lub tsheb dynamometer tuning tau ua los ntawm Haibeck Automotive Technology hauv Addison, Illinois.
Tom qab LT5 tau sib sau ua ke thiab hloov kho, Wasinger tau hais tias nws tau txais 650 horsepower nws cia siab. Tam sim no, xyoo 1994 ZR-1 Corvette tau rov qab los ntawm txoj kev.
Lub lim tiam no lub cav tau txhawb nqa los ntawm PennGrade Tsav Roj, Elring - Das Original thiab Scat Crankshafts. Yog tias koj muaj lub cav uas koj xav tau qhia hauv cov koob no, thov xa email rau [email tiv thaiv] Engine Builder editor Greg Jones


Post lub sij hawm: Sep-13-2021

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