Engine SR20DE: tsis muaj, nta, tuning

2024 Tus sau: Erin Ralphs | [email protected]. Kawg hloov kho: 2024-02-19 16:11

Japanese cav yog ib txwm muaj kev ntseeg siab vim lawv qhov kev xav tau zoo. Cov Japanese powertrains nrov heev suav nrog Nissan SR series xyaw. Kab lus no tham txog qhov feem ntau ntawm lawv - Nissan SR20DE engine.

Cov yam ntxwv dav dav

SR cav tau tsim los hloov pauv rau CA uas tsis siv lawm. Cov koob no suav nrog 8 lub cev muaj zog nrog lub ntim ntawm 1, 6, 1, 8 thiab 2 liters. Lub SR20DE tau tshwm sim hauv xyoo 1989. Lub sijhawm dhau los, nws tau maj mam hloov los ntawm QR series xyaw. Kev tsim tawm ntawm SR20DE tau xaus rau xyoo 2002.

Txhua lub cav ntawm cov koob no txawv ntawm CA hauv cov yam ntxwv hauv qab no: hluav taws xob ntau lub ntsiab lus roj txhaj tshuaj, txhuas lub tog raj kheej thaiv, 16-valve lub tog raj kheej taub hau, lub sijhawm tsav tsheb, muaj cov khoom siv hydraulic hauv lub valve mechanism.

Tsim

SR20DE yog 2- thiab 4-lub tog raj kheej hauv-kab cav. Lub tog raj kheej thaiv yog ua los ntawm aluminium. Nws muaj 16-valve lub tog raj kheej taub hau thiab lub sij hawm saw tsav. Nruab nrog ob lub camshafts thiab hluav taws xob faib kev txhaj tshuaj, uas tau pom hauv lub npe (DE). Lub piston stroke thiab lub tog raj kheej txoj kab uas hla yog sib npaug thiab yog86mm ua. Qhov siab piston yog 97 hli, lub tog raj kheej yog 211.3 hli. Compression ratio yog 9.5: 1. Qhov ntev ntawm qhov txuas txuas yog 136.3 hli, txoj kab uas hla ntawm crankshaft phau ntawv xov xwm yog 55 hli. Inlet txoj kab uas hla yog 34 hli, qhov hluav taws xob yog 30 hli. Tag nrho qhov ntev yog 685x610x615 mm, hnyav - 160 kg.

Kev ua haujlwm

Lub cav SR20DE muaj ntau yam kev xaiv (tshaj 10). Lub zog muaj peev xwm ntawm 115 txog 165 hp. Nrog. ntawm 6000-6400 rpm, torque - los ntawm 169 mus rau 192 Nm ntawm 4800 rpm.

Kev hloov kho

Muaj ntau qhov kev hloov kho ntawm SR20DE lub cav.

Thawj koob ntawm lub cev muaj zog no hu ua Red Top (ntawm lub valve liab npog) lossis High Port. Nws nta 248/240 ° camshafts nrog 10/9.2mm nqa rau 7500 RPM txwv, noj cov chaw nres nkoj, thiab 45mm tso qhov system.

Hauv xyoo 1994 lawv tsim Dub Sab saum toj lossis Chaw Nres Nkoj nrog kev txhim kho ib puag ncig. Lub cav no muaj 240/240 ° camshafts nrog 9, 2/9, 2 nqa, rov tsim kho qhov chaw nres nkoj, thiab 38 hli tso pa tawm.

Nyob rau xyoo 1995, lub camshaft tshiab tau nruab nrog theem ntawm 232 ° thiab nqa ntawm 8.66 hli, vim tias qhov txwv tau txo mus rau 7100.

Nyob rau xyoo 2000, cov Roller Rocker version tau qhia, muaj cov menyuam yaus rockers, 232/240 ° 10/9, 2 hli nqa camshafts, 3 hli luv springs thiab li qub, lub teeb yuag pistons, sib dua crankshaft, luv.noj manifold.

Daim ntawv thov

Chaw tsim khoom nruab SR20DE ntawm 15 qauv: S13-S15 Silvia, 180SX, 200SX SE-R, U12 - U14 Bluebird, P10, P11 Primera (Infinity G20), W10, W11 Avenir, B13 - B14, Sentra N15 Pulsar (Almera), M12 Liberty, NX2000, Y10/N14 Wingroad, С23 Serena, R10, R11 Presea, Rasheen, M11 Prairie Joy, R'nessa.

Problems

Lub cav Nissan SR20DE, zoo li lwm lub cav hauv cov koob, suav tias yog kev ntseeg siab heev. Raws li nws lub hauv paus, ntau lub tshuab ua haujlwm siab (SR20DET, SR20VE, SR20VET) tau tsim, uas lees paub qhov muaj txiaj ntsig ntawm kev nyab xeeb. Qhov tsis txaus ntseeg loj thiab qhov tsis muaj zog tsis tau txheeb xyuas. Qhov feem ntau ua haujlwm tsis zoo suav nrog kev ua tsis tiav ntawm DMRV thiab ntab ntab vim yog kev puas tsuaj ntawm qhov tsis siv neeg ceev tswj lossis siv cov roj tsis zoo. Cov peev txheej ntawm lub cav SR20DE, raws li cov ntaub ntawv siv tau, yog ntau tshaj 400 txhiab km. Lub sij hawm saw kev pab - los ntawm 200-250 txhiab km. Vim lub xub ntiag ntawm hydraulic lifters, valve hloov tsis tas yuav tsum tau. Kev hloov roj yog nqa tawm txhua 15 txhiab km, tab sis nws raug pom zoo ob zaug ntau zaus. Lub cev muaj zog tuav 3.4 litres roj qib 5W20-5W50, 10W30-10W60, 15W40, 15W50, 20W20. Muaj cov kev xaiv teeb tsa rau ob qho tib si 92 thiab 98 roj av. Ib daim ntawv cog lus ua tiav SR20DE cav nqi kwv yees li 20-30 txhiab rubles.

Raws li qhov tsis zoo, cov neeg siv ceeb toom suab nrov, feem ntau yog vim lub tshuab xa tawm roj. Qhov no yog qhov tseeb tshwj xeeb tshaj yog thaum lub caij txias pib ua ntej cov roj siab nce thiab qis qis ntawm cov cav nrogib tug qub saw, uas feem ntau stretches ntawm siab mileage (kwv yees li 250 txhiab km), raws li ib tug tshwm sim ntawm cov hydraulic tensioner tsis muaj peev xwm ua kom nruj nws. Tsis tas li ntawd, lub cav hauv nqe lus nug yog tus cwj pwm los ntawm kev siv roj ntau heev (ntau dua 10 litres ib 100 km).

Tub

Ua ntej pib qhov kev hloov kho, koj yuav tsum txiav txim siab ntawm cov npe ntawm kev txhim kho. Qhov no cuam tshuam rau kev xaiv ntawm sab saum toj ntawm lub cav SR20DE. Yog tias qhov chaw nres nkoj tau npaj, lub tog raj kheej lub taub hau los ntawm High Port version yuav tsum tau siv vim muaj peev xwm ntau dua. Yog tias koj tsis tas yuav dhuav cov channel, Low Port cylinder head, uas muaj kev tshem tawm zoo dua, yog qhov tsim nyog dua.

theem pib ntawm kev kho yog hloov kho cov khoom siv thiab tso pa tawm. Rau qhov no, nws raug nquahu kom siv cov khoom xws li txias inlet, JWT S3 camshafts, 4-1 manifold, direct-flow exhaust. Tsis tas li ntawd, koj yuav tsum tau teeb tsa lub cev muaj zog siv JWT tswj chav tsev. Qhov kev sib tw no muab kev txhawb nqa me me.

Txhawm rau ua tiav qhov kev ua tau zoo dua, koj yuav tsum nce qhov sib piv compression. Qhov no tuaj yeem ua tiav ob txoj hauv kev.

Thawj yog siv lub piston sib sib zog nqus los ntawm SR20VE, uas yuav ua rau daim duab no nce mus rau 11.7. Ntxiv rau cov pistons, nws raug nquahu kom nruab H-shaped sib txuas rods, lub teeb yuag flywheel, injectors thiab tso pa tawm los ntawm cov tib lub cav, tso pa nrog txoj kab uas hla ntawm 63 hli, camshafts tau hais los saum toj no thiab JWC ECU. Ua li no, txog 200 litres tuaj yeem ua tiav. s.

Qhov kev xaiv thib ob yog muab lub tog raj kheej thaiv los ntawm SR20VE thiab lub tog raj kheej taub haulos ntawm SR16VE N1 nrog cov ntawv txuas. Qhov no yuav muab compression piv txog li 12.5. Tsis tas li ntawd, yuav tsum tau siv lub teeb yuag flywheel, 4-1 manifold, ncaj-los ntawm pa tawm. Yog li, koj tuaj yeem tau txais ntau dua 210 litres. s.

Tom ntej no, koj tuaj yeem txhim kho cov camshafts nruj dua, nce qhov sib piv, txhim kho lub tog raj kheej thaiv, txhim kho lub tshuab nqus tsev, hloov lub cav rau methanol. Turbocharging SR20DE yog qhov ua tsis tau. Qhov no yog vim qhov tseeb tias yuav tsum muaj ntau qhov chaw thiab ntau cov haujlwm tseem yuav tsum tau ua: nws yog ib qho tsim nyog yuav tsum tau embed roj injectors, hloov pistons, injectors, roj twj tso kua mis thiab lub regulator, nruab ib lub turbine, muab roj. mov thiab roj ntws, nruab ib qho intercooler, teeb tsa siv ECU. Qhov tshwm sim yog lub cev muaj zog zoo ib yam li SR20DET. Yog li ntawd, nws yuav yooj yim dua thiab pheej yig dua los hloov lub cav SR20DE nrog lub cav muaj npe turbo, uas raug nqi li 60-65 txhiab rubles sib sau ua ke nrog lub gearbox.