~BUGATti veyRon vs MclareN F1??

Who will win??

~Lighten Crank Pulley~

~THis is one of modification thats we can do to our engine... cara lain utk mendapatkan sedikit kuasa tambahan dalam response engine kita.... this setup was recommended to me by my friend.. He said this thing can help in giving response when we throttle.... (terasa ringan memecut walaupun aircond dibuka)...


~~Semua kereta sememangnya didatangkan khas dengan benda ni.. atau dipanggil "crank pulley". Namun bagi penggemar arena ubahsuai kenderaan... aftermarket Crank pulley menarik perhatian mereka...


~~~The other benefit of aftermarket pulleys is to reduce rotating mass. Here the simple aluminum crank pulley has a big advantage over the heavy stock pulley, but there's a reason it's so much lighter: It's missing the harmonic dampener. The reduction in rotating mass may be worth a couple of horsepower. So this the thing that can help us in regain power..


~~~~Namun, kebanyakan aftermarket LCP tidak mempunyai HARMONIC DAMPER... OEM crank pulley is the best crank pulley dari sudut semua aspek. The factory crank pulley has a built-in harmonic dampener, in the form of a split design, with a thick rubber pad sandwiched between two steel sheels. The dampener is designed to absorb torsional and vertical vibrations from the crank. SO bayangkan bila tiada penyerap.... ehehe... Ada pendapat mengatakan... there will be a resonance on crankshaft when rpm hit 7k and above... ketiadaan harmonic damper akan menambahkan lagi resonan dalam crankshaft bagi sesebuah enjin itu.. RISIKO OF AFTERMARKET LCP.


~~~~~Tetapi bagi sy dan semua penggemar dunia modfikasi kenderaan.... as long as it can give as a satisfaction we will choose it... Dari crank pulley OEM... sy telah menukarkanya kepada LCP aftermarket. Jenama yg menjadi pilihan adalah dari REDLINE. Dari segi material, kekuatan dan design itu tersendiri, REDLINE crank pulley mempunyai keistimewaan tersendiri....

~INJEctor~

An injector, ejector, steam ejector or steam injector is a pump-like device that uses the Venturi effect of a converging-diverging nozzle to convert the pressure energy of a motive fluid to velocity energy which creates a low pressure zone that draws in and entrains a suction fluid. After passing through the throat of the injector, the mixed fluid expands and the velocity is reduced which results in recompressing the mixed fluids by converting velocity energy back into pressure energy. The motive fluid may be a liquid, steam or any other gas. The entrained suction fluid may be a gas, a liquid, a slurry, or a dust-laden gas stream.^[1][2]

The adjacent diagram depicts a typical modern ejector or injector. It consists of a motive fluid inlet nozzle and a converging-diverging outlet nozzle. Water, air, steam, or any other fluid at high pressure provides the motive force at the inlet.

The Venturi effect, a particular case of Bernoulli's principle, applies to the operation of this device. Fluid under high pressure is converted into a high-velocity jet at the throat of the convergent-divergent nozzle which creates a low pressure at that point. The low pressure draws the suction fluid into the convergent-divergent nozzle where it mixes with the motive fluid.

In essence, the pressure energy of the inlet motive fluid is converted to kinetic energy in the form of velocity head at the throat of the convergent-divergent nozzle. As the mixed fluid then expands in the divergent diffuser, the kinetic energy is converted back to pressure energy at the diffuser outlet in accordance with Bernoulli's principle.

Depending on the specific application, an injector is commonly also called an Eductor-jet pump, a water eductor, a vacuum ejector, a steam-jet ejector, or an aspirator.

~Berbalik kepada kereta aku... engine bernadi 4g92p telah dibekalkan oleh Proton dengan injector berkapasiti 182cc... utk meningkatkan keupayaan engine kereta aku telah menukarkan kepada daya pancutan yang lebih tggi... lebih bnyk minyak masuk lebih daya pembakaran... TETAPI peningkatan kadar kapasiti pancutan yang terlalu tinggi akan menyebabkan kereta anda kurang daya saing nyer akibat lebihan minyak serta tekanan yang berkurangan... kerana modifikasi yg terbaik adalah kadar campuran bahan api dan udara menepati sasaran penggunaan engine yang optimum....

~~Semula nya dari 182cc, sy telah meningkatkan keupayaannya kepada 240cc a.k.a injector dari jantung MIVEC.... setelah beberapa ketika sy menyedari akan ketidak sesuaian injector 240cc mivec terhadap engine sy pada masa itu... (Anda bole menggunakan injector yg tggi dengan syarat modifikasi terhadap engine anda juga tggi).... Apabila rpm kereta sy melebihi 5k RPM... satu perasan dimana kereta sy tidak lagi menerjah seperti yg sebelum nya...

~~~Walhal demikian akhirnya sy menukarkan injector yg berkapasiti 240cc kepada 210cc... prestasi kereta sy kembali pada tahap lama... (so ape guna tukar mende ni kalu prestasi sama?)... utk yg demikian... mungkin berlaku kekurangan tekanan atau sebagainya kepada engine sy ini... sy memilih utk menambahkan mekanisme baru kepada injector tersebut utk mengoptimumkan lagi keupayaanya.... mekanisme itu disebut FUEL PRESSURE REGULATOR a.k.a FR or FPR ( sy akan terangkan mekanisme ini dalam topik yg seterusnya)....

~~~~Namun, berdasarkan projek terbaru sy skrg ini... Injector 240cc mivec akan kembali kepada jantung kereta sy ini.... modifikasi yg ekstrem kali ni memerlukan pancutan minyak yg lebih bnyk bg memastikan kadar campuran angin dan minyak akan sama...

"HOPING MY PROJECT RUNNING WELL"

*182cc

*210cc

*credited to wikipedia

Penantian suatu ujian....

~arhhhhhhhh....berapa lamakah lagi harus ku tunggu.....bila laaaaa nak siap keta aku ni..

~~sabar2..sumer tu ujian.. ehehehe... kepuasan bakal menjelma kelak... kepuasan yg lebey maksimum..ehehe

IKAN + AYAM = ??? (ikan ayam)

~TAnggal beberapa minggu yg lalu, satu fenomena luar dari kebiasaan telah menghantui para-para pelajar MMU university... fenomena cuti just 2 mggu... demn!!!! ape kes... kurang agi seminggu...arghhhhhhhhhhhhh... tp aper pon 2 mggu pon jdlah...janji dpt bercuti.... ehehe

~~Pada suatu hari time cuti bebaru ni... aku pergi Tesco SP selepas mengkaraoke kan diri di Village mall sebelahnyer... sajer jalan2... xde org nak teman....huwaaaa... jalan punya jalan last2....ternampk ikan yg agak unik...

~~~Ape pendapat korunk/hangpa/anda/mereka apabila disebutkan ikan + ayam??? huh... ader rupa ikan tp xde rupa ayam... ehehe namun dia tetap unik..ehehe

PS: kawan aku kata kat tempat dia pggil ikan jebung

~~CAMSHAFT~~

The camshaft is an apparatus often used in piston engines to operate poppet valves. It consists of a cylindrical rod running the length of the cylinder bank with a number of oblong lobes or cams protruding from it, one for each valve. The cams force the valves open by pressing on the valve, or on some intermediate mechanism, as they rotate.

Timing

The relationship between the rotation of the camshaft and the rotation of the crankshaft is of critical importance. Since the valves control the flow of air/fuel mixture intake and exhaust gases, they must be opened and closed at the appropriate time during the stroke of the piston. For this reason, the camshaft is connected to the crankshaft either directly, via a gear mechanism, or indirectly via a belt or chain called a timing belt or timing chain. In some designs the camshaft also drives the distributor and th

e oil and fuel pumps. Also on early fuel injection systems, cams on the camshaft would operate the fuel injectors.

In a two-stroke engine that uses a camshaft, each valve is opened once for each rotation of the crankshaft; in these engines, the camshaft rotates at the same rate as the crankshaft. In a four-stroke engine, the valves are opened only half as often; thus, two full rotations of the crankshaft occur for each rotation of the camshaft.

The timing of the camshaft can be advanced to produce better low end torque or it can be retarded to produce better high end torque.

Duration

Duration can often be confusing because manufacturers may select any lift point to advertise a camshaft's duration and sometimes will manipulate these numbers. The power and idle characteristics of a camshaft rated at .006" will be mu ch different than one rated the same at .002". Whenever duration is quoted, be sure to note the lift at which it is given.

Many performance engine builders have learned to gauge a race profile's aggressiveness by looking at the duration at .020", .050" and .200". The .020" number determines how responsive the motor will be and how much low end to

rque the motor will make. The .050" number is used to estimate where peak power wil

l occur, and the .200" number gives an estimate of the power potential.

In general, duration determines how many crankshaft degrees a camshaft maintains more than a given tappet lift.

as per explaination.... keupayaan sesebuah engine mampu di tingkatkan lagi dengan sedikit penambahan deg atau penukaran camshaft kepada yg lebey berkeupayaan tggi... *ala-ala gitu la.... senang citer giler kuasa tukar jer cam..ehehe ader bunyi brub-brub agi... tu yg best tue..ehehe

~~tapi satu la pasang cam ni... MINYAK memang bes t...ahah macam air beb... Pastu bunyi brub...brub...brub... tu menarik perhatian abg J.... abih la.. takut aku pasni...

~~degree sesuatu cam itu pulak menerangkan jenis atau kesesuaian cam itu sendiri... maklumat dari org la... ader mildcam, fastroad,racing cam, extreme cam...bla...bla...bla...bla...bla... aku pon tatau...

~next modification dalam engine aku kali ni... aku menukar camshaft 4g92p yer berdegree kurang dari 250 (*orang cakap*) kepada sesuatu yg lebey ekstrem.... aku akan menggunakan cam yang berdegree lebey tinggi...ehehe
nantikan...



antara gambar2 cam asal a.k.a 4G92P

~~PISTON~~

A piston is a component of reciprocating engines, pumps and gas compressors. It is located in a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder wall.

~seperti penerangan diatas... ehehe next projek sy berkaitan dengan dalaman pulak... kalu ni.. sy cuba merubahkan lagi keupayaan jentera sy yg bernadikan 4g92p ke satu lagi tahap.... Kali ni sy cuba mengusik bahagian dalamanya pula..

dari piston yg menjanakan jantung 4g92p kepada piston janaan jantung MIVEC... tetapi untuk memuaskan nafsu kelajuan sy ini..ahaha... sy memilih piston oversize... before 81mm SOHC to 82mm MIVEC...

~Dalam penukaran ini... banyk proses yg perlu dilakukan... anda perlu mereborekan kembali... lubang2 piston sedia ada mengikut saiz piston yg dipilih..

Jom belajar bahasa...kang jadi camni..

PETROL STATION.....
Cerite brmula d satu station minyak. D station minyak nie ada 2 org pekerja bangla yg tau cakap melayu skit, omputih skit & bahasa bangla yg sememangnye dia pro. Sorg tu namanye Majid & seorg lg namanye Iqbal.

Pd satu arie berhenti sebuah kete mewah, mercedes utk mengisi minyak. Pemandu kete tu seorg Pak Arab . Kebetulan pula minyak d pam minyak tu dah abis, nie yg membuatkan Iqbal poning kepalo nak bgtau pd Pak Arab tu yg minyak dah abih. Pak Arab tu lak tak tau sepatah haram bahasa melayu, cuma tau omputih skit & bahasa arabnye ler..

Iqbal bgtau PakArab tu sambil menyebut "fuel" & dsusuli gerakan memusingkan tangan menandakan minyak abih, tapi Pak Arab tu ternganga tak paham. Iqbal coba lg sekali dgn menyebut "fuel" & disusuli gerakan memusingkan kepala, tapi Pak Arab tu ternganga luas tak paham!!..

Iqbal tak tau nak wat camner..dia pon gi kat Majid utk menerangkan situasi sebenar. Mereka bercakap dlm bahasa bangla, & bunyiknye cam nie..

Iqbal: Majid, tolong aku majid, Pak Arab tu tak tau minyak dah abih..
Majid: ala...ko cakap je la..minyak dah abih..
Iqbal: dah cakap dah, tapi dier tak paham...aku lak, tak tau cakap omputih.. Yes , No, Alrite & I lap U tau ler..
Majid: Aku pun tak tau gak cakap omputih...
Iqbal: ala..ko tolong ler aku..
Majid: ok...aku tau sikit-sikit cakap arab..

Lalu pergi la..si Majid kat Pak Arab tu & dgn selamba dek..nye berkata;
"Fuel!, Sodoqallah'hul. .azim",

baruler.. Pak Arab tu paham & teros blahhh...

*kredit to mysat