sumber
Feedjit
Monday, April 12, 2010
Sepeda Motor 100 Tahun Yang Lalu
sumber
Sunday, April 11, 2010
Gambar Land Rover Range Rover Sport Supercharged 2010


| Vehicle Type: | 5-door SUV, production car |
| Price: | $---,--- |
| Miles Per Gallon: | --/-- mpg |
| Drivetrain | |
| Configuration | Front Engine/AWD |
| Engine: | Supercharged V8 |
| Displacement: | 5000 cc |
| Horsepower: | 510 bhp @ 6000 rpm |
| Torque: | 461 lb-ft @ 2500 rpm |
| Max RPM: | ---- rpm |
| Transmission: | 6-Speed Automatic |
The Ambit Rover Sport reaffirms its cachet as the best agitative and activating affiliate of the Land Rover ambit with a absolute amalgamation of engineering and architecture changes for the 2010 archetypal year. The vehicle’s beautiful new actualization signals the transformation beneath the skin, which includes two able and able new engines – the LR-TDV6 agent and LR-V8 5.0-litre supercharged – added levels of autogenous adroitness and refinement, and cogent improvements to both on-road and off-road alive dynamics.
The agent retains the acclaimed LR-TDV8 agent agent and this archetypal additionally allowances from upgrades to the architecture and under-the-skin enhancements. A absolute programme of anatomy arrangement modifications has adapted the Ambit Rover Sport’s on-road dynamics, while additionally carrying a abundant advance in its off-road capabilities.
The accession of new systems such as Adaptive Dynamics, alive in affiliation with the absolute Activating Response, accepted as alive ride ascendancy (ARC) on Supercharged models, and the accession of the road-focused Activating Program to the Terrain Response™ arrangement advice enhance activity and ride quality. Further improvements to the Terrain Response™ arrangement ensure that off-road adequacy is kept at the accepted class-leading level.
The Ambit Rover Sport’s stylish, able-bodied exoteric has been adapted to accommodate a cleaner, added sculpted feel. Striking signature LED headlamps amalgamate with a new two-bar grille, advanced bumpers and wings to actualize a added antic and aerodynamic stance. At the rear, new ablaze clusters and a revised bonanza architecture mirror the smoother advanced end.
Perbandingan Kompresi Vs Oktan Bensin
Saat berada di TMA, di atas puncak piston masih tersisa sedikit ruang untuk memampatkan udara dan bahan bakar (mesin bensin), busi, injektor (untuk injeksi langsung), dan tentu saja kepala klep yang mengatur keluar masuk udara segar dan sisa pembakaran.
Selanjutnya, ketika berada di TMB, ruang yang ada di atas piston sangat besar. Selain ruang kecil di kepala silinder, kini ada tambahan ruang dari blok silinder dengan ukuran lebih besar.
Nah, bila dibandingkan, antara ruang saat piston berada di TMA dan TMA, itulah yang disebut perbandingan ruang kompresi. Kalau perbandingan kompresi disebutkan 10,0 : 1, maka itu berarti perbandingan ruang saat piston di TMA dan TMB adalah 10,0 : 1.
Makin tinggi perbandingan kompresi, makin efisien kerja mesin. Namun, mesin juga butuh bahan bakar dengan kualitas lebih baik. Misalnya, untuk mesin dengan perbandingan kompresi 10 : 1, tak ada tawar-menawar lagi selain harus menggunakan bensin dengan nilai oktan di atas 90.
Pada kondisi darurat, BBM yang dipakai bisa saja premium. Namun kalau dipaksa terus menggunakan asupan yang kurang bagus ini, maka pencernaan "perut" mesin juga tidak akan bekerja dengan normal.
Sebagai contoh, kompresi tinggi yang membuat mesin lebih efisien dapat dilihat pada salah satu produk Honda yang menggunakan dua mesin berbeda, yaitu CR-V, seperti berikut.
2.0 liter | 2.4 liter | |
Perbandingan kompresi | 10,5 : 1 | 9,3 : 1 |
Tenaga maks (PS @rpm) | 150 @6.200 | 170 @5.800 |
| Torsi maks (kg-m @rpm) | 19,4 @4.200 | 22,2 @4.200 |
Empat Pemicu Mesin Mobil Mati
Untuk mesin modern yang sudah dilengkapi komputer, bila beroperasi melebihi batas suhu kerja, maka komputer otomatis akan melindungi dengan cara menonaktifkan mesin secara bertahap. Misalnya, komputer akan menghentikan kerja kompresor AC, berlanjut ke mode aman (safe mode), hingga saatnya mesin dihentikan secara total.
Namun, mesin era 1990-an belum dilengkapi komputer. Gejala overheat bisa dideteksi dengan munculnya gejala knocking saat berakselerasi.
* Langkah preventif
Periksa cooling system dan jumlah oli mesin secara berkala. Perhatikan indikator suhu mesin saat timbul knocking, dan segera tepikan mobil.
* Langkah preventif
Periksa oli secara berkala. Jangan menganggap remeh indikator oli yang menyala. Itu menandakan bahwa pompa oli kehilangan tekanan.
Air tersedot ke ruang bakar akibat menerjang genangan air yang tinggi. Air yang jauh lebih padat dari udara, sampai memenuhi ruang bakar, tentu tidak dapat tekanan saat mesin bekerja pada langkah kompresi. Dalam kondisi katup tertutup, tekanan air akan menghancurkan komponen terlemah di ruang bakar, yakni piston.
* Langkah preventif
Ketahui ketinggian saluran masuk udara di mesin. Jangan sekali-sekali menstarter ketika mesin mati di tengah banjir. Buka busi, lalu start mesin untuk mengeluarkan air di ruang bakar.
"Timing belt" Fungsinya sebagai penyelaras putaran kruk as dan katup sehingga keduanya tidak berbenturan. Namun, fatal akibatnya bila belt yang menghubungkan kedua mekanisme ini putus secara tiba-tiba. Kerusakan tak terelakkan lantaran piston akan menumbuk katup yang berada dalam posisi membuka.
Bila hal tersebut terjadi dalam putaran mesin tinggi, maka blok mesin bisa pecah. Kondisi ini bisa diminimalkan bila Anda tahu kerusakan yang terjadi. Mesin dengan perbandingan kompresi rendah atau yang dilengkapi turbocharger atau supercharger cenderung memiliki peluang lebih kecil terhadap kerusakan.
* Langkah preventif
Ganti timing belt secara berkala sesuai rekomendasi. Percepat penggantian timing belt bila frekuensi mobil melewati jalan macet tinggi.
Mobil Sport Terganas 2010 ?
Thursday, April 8, 2010
2010 Lamborghini Gallardo LP560-4 Spyder Convertible


| Vehicle Type: | 2-door convertible, production car |
| Price: | $---,--- |
| Miles Per Gallon: | 13/20 mpg |
| Drivetrain | |
| Configuration | Mid Engine/AWD |
| Engine: | V10 |
| Displacement: | 5204 cc |
| Horsepower: | 552 bhp @ 8000 rpm |
| Torque: | 398 lb-ft @ 6500 rpm |
| Max RPM: | ---- rpm |
| Transmission: | 6-Speed Manual/E-Gear |
The Gallardo LP 560-4 has been on the bazaar back aboriginal 2008, as the almsman to the best acknowledged Lamborghini of all time – back 2003, added than 8,500 models address the Gallardo name accept larboard the assembly ability in Sant’Agata Bolognese. “The LP 560-4 is the abutting footfall in a huge success story,” says Stephan Winkelmann, President and CEO of Automobili Lamborghini. “With the Spyder, we are now actualization a car that is, absolutely simply, a new ambit in the latest Gallardo range. It is an absolutely new model, whilst architecture on the abundant abstruse and architecture attributes of the Gallardo LP560-4 assembly strategy. The new Gallardo LP 560-4 Spyder is a artlessly amazing auto – and absolutely unparalleled in its charge to acute motoring.”
In its new generation, the Gallardo Spyder represents added than anytime afore automotive affection in its purest form. As in the Coupé, its astronomic ability is delivered by the new 5.2 litre V10 with an achievement of 560 hp (412 kW) at 8,000 rpm. The access in 40 hp (29 kW) over its predecessor, as able-bodied as the 44 batter (20 kilogram) abridgement in agent weight, improves the power-to-weight arrangement to 6.10 pounds (2.77 kg) per hp, appropriately convalescent achievement alike further.
The LP 560-4 Spyder takes alone 4.0 abnormal to dart from 0 to 62 mph (0 to 100 km/h), extensive 124 mph (0 to 200 km/h) in alone 13.1 abnormal and activity on to a top acceleration of 201 mph (324 km/h). The new driveline, featuring the “Iniezione Diretta Stratificata” absolute ammunition bang arrangement additionally makes for absorbing efficiency. Despite the ample access in performance, ammunition burning and CO2 emissions accept been bargain by a amazing 18 percent.
2006 Jeep Grand Cherokee SRT8 5-Door SUV

| Vehicle Type: | 5-door SUV, production car |
| Price: | $39,995 |
| Miles Per Gallon: | --/-- mpg |
| Drivetrain | |
| Configuration | Front Engine/AWD |
| Engine: | V8 |
| Displacement: | 6059 cc |
| Horsepower: | 420 bhp @ 6200 rpm |
| Torque: | 420 lb-ft @ 4800 rpm |
| Max RPM: | 6400 rpm |
| Transmission: | 5-Speed Automatic |
The all-new 2006 Jeep Grand Cherokee SRT8 combines those qualities with Street and Racing Technology’s (SRT) counterbalanced access to performance, consistent in the quickest, best able Jeep agent anytime created, and the ultimate achievement sport-utility vehicle.
“Jeep cartage advance the way in achievement and versatility,” said Jeff Bell, Vice President, Jeep, Chrysler Group. “The all-new 2006 Jeep Grand Cherokee SRT8 adds a new ambit to achievement and versatility – and value. With its SRT-engineered 6.1-liter HEMI® agent and distinctively developed full-time four-wheel drive system, the 2006 Jeep Grand Cherokee SRT8 provides beauteous achievement in an amazing array of active conditions.
“The all-new 2006 Jeep Grand Cherokee SRT8 marries Jeep adequacy with SRT achievement to actualize a agent that will leave in its dust competitors that amount alert the price,” Bell added.
Powered by a 6.1-liter HEMI bearing 415 application (85 added horses and 25 percent added ability than the 5.7-liter HEMI-equipped 2006 Jeep Grand Cherokee) and 410 lb.-ft. of torque, the all-new 2006 Jeep Grand Cherokee SRT8’s achievement numbers accommodate 0-60 mph in beneath 5 seconds, 0-100-0 mph in the low 19-second range, and 60-0 mph braking ambit of about 125 feet.












