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Written by Simon of www.italianhands.com Alfa Romeo Seminar 23 Jan 2005 Wirtten by Simon of www.italianhands.com
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Written by Simon of www.italianhands.com Alfa Romeo Seminar Content 1.Engine basic 2.Alfa engine philosophy 3.Alfa technologies 4.Alfa end results
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Written by Simon of www.italianhands.com 1. Engine Basic Air Fuel Air to fuel 14.7:1 Electric Engine Exhaust Cooling Lubrication Output: rotational force
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Written by Simon of www.italianhands.com 1.Air 2.Fuel 3.Electric Engine 4.Exhaust 5.Cooling 6.Lubrication
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Written by Simon of www.italianhands.com Air Need precision measurement Smooth Ramming effect Twin cam Valves Tumble Cooling Turbocharge / supercharge
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Written by Simon of www.italianhands.com Fuel Precision injection quantity atomization Fuel pressure
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Written by Simon of www.italianhands.com Electric Stable 13.5V Withstand high temperature Chassis earth
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Written by Simon of www.italianhands.com Cooling Temperature control Maintain 90°C operating temperature Efficiently rise to operating temperature Engine best at 90-105°C
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Written by Simon of www.italianhands.com Lubrication Lubricate moving parts Cooling
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Written by Simon of www.italianhands.com Exhaust Scavenger effect Exhaust tone Heat up catalyst Turbo need temperature control
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Written by Simon of www.italianhands.com 2. Alfa philosophy High performance Nice Exhaust tone Natural Aspiration Reliability? Durability? Stability? Fuel economy?
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Written by Simon of www.italianhands.com 3. Alfa technologies Engine layout Engine block Cam JTS Fuel system Exhaust …
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Written by Simon of www.italianhands.com Engine layout Boxer In-line 4 V6 Performance Comparison
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Written by Simon of www.italianhands.com Boxer features Iron block alloy head SOHC/DOHC Fuel injection 4-2-1 exhaust Belt driven High tension wire
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Written by Simon of www.italianhands.com Inline 4 features Iron block Alloy head DOHC Fuel injection 8v/16v 4-2-1 exhaust/ stainless exhaust Chain/Belt driven High tension cable/ignition coil Variable valve timing Twin spark JTS Variable intake system Water/oil heat exchanger
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Written by Simon of www.italianhands.com V6 features Alloy block alloy head Fuel injection Variable intake system Electronic throttle Ignition coil
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Written by Simon of www.italianhands.com Comparison Boxer 1990-1994 series 1.5 8v 105bhp@6000 1.7 8v 112bhp@5800 1.7 16v 137bhp@6500 In-line 4 1990-2000 2.0 8v 141bhp@6000 2.0 16v 150bhp@6200 2.0 16v 155bhp@6200 V6 1990-1994 series 2.5V6 3.0V6 12v 192bhp@5600 3.0V6 24v 210bhp@ 3.2V6 250bhp@
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Written by Simon of www.italianhands.com Technical features Alloy block Cast iron block Steel liner
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Written by Simon of www.italianhands.com Twin Spark Old design working principle New design working principle Waste spark 1.6 1000cc 76hp 1.8 1000cc 80hp 2.0 1000cc 75hp
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Written by Simon of www.italianhands.com V6 3.0 1000cc 73hp 2.5 1000cc 75hp 3.2 1000cc 78hp
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Written by Simon of www.italianhands.com JTS Jet thrust stoichiometric Lean burn Direction injection 1000cc 83hp Increased compression ratio, therefore thermal efficiency
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Written by Simon of www.italianhands.com Variable geometry intake path
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Written by Simon of www.italianhands.com Tooth belt Timing chain
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Written by Simon of www.italianhands.com Spark plug type Hot type cold type Normal Platinum Iridium
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Written by Simon of www.italianhands.com Air filter type OEM Genuine K&N panel Mushroom type
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Written by Simon of www.italianhands.com Engine oil Viscosity 10W-60 Synthetic vs. mineral oil Tolerance Maintain viscosity throughout temperature Slow deterioration Withstand high temperature Less vapourization
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Written by Simon of www.italianhands.com Fuel Fuel additive Octane booster Injector cleaner
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Written by Simon of www.italianhands.com Electronic throttle
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Written by Simon of www.italianhands.com Ignition coil High tension wire/cable
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Written by Simon of www.italianhands.com Exhaust system Stainless steel 4-2-1
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Written by Simon of www.italianhands.com Operating parameters Intake length Smoothness Overlap timing Exhaust length Diameter Manifold Fuel pressure
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Written by Simon of www.italianhands.com High performance engine 1000cc NA ~ 110hp
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Written by Simon of www.italianhands.com Transmission Manual 2.0 selespeed 2.5 Q-system 3.0 Q-system 3.2 Sportronic CAE Cambrio Automatico Elettronico
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Written by Simon of www.italianhands.com Manual 2.5V6 Clutch plate has dual mass flywheel Therefore no spring on clutch plate Clutch impulse damper
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Written by Simon of www.italianhands.com Selespeed A hydraulic controlled manual gearbox Designed primarily as sporty sequential transmission But so advance that can also be used as automatic Advance CITY mode On 2.0, GTA
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Written by Simon of www.italianhands.com Q system A 4 speed automatic gearbox structure Sport City Ice With shifting programs On 2.5V6
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Written by Simon of www.italianhands.com Sportronic On 166 A 4 speed automatic gearbox structure With 12 shifting programs Self adaptive
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Written by Simon of www.italianhands.com Drivetrain Limited slip differential Good and bad for Front wheel drive Rear wheel drive 4 wheel drive Q4
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Written by Simon of www.italianhands.com Chassis Suspension type Wheels and tyres Brakes Safety features Body
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Written by Simon of www.italianhands.com Suspension Aims Steering feedback Anti dive Anti squat Self centering Cornering ability Rear suspension aids steering
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Written by Simon of www.italianhands.com Suspension type Aim – Space vs. handling McPherson strut – compact Double wishbone – good handling Multilink – compact and good handling DeDion - the best rigid axle
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Written by Simon of www.italianhands.com 156 Suspension
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Written by Simon of www.italianhands.com Trailing arms
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Written by Simon of www.italianhands.com wishbone
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Written by Simon of www.italianhands.com McPherson
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Written by Simon of www.italianhands.com DeDion
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Written by Simon of www.italianhands.com Dampers Koni vs. Bilstein Oil vs. gas Electronic dampers – best of both world Self leveling – BOGE Nivomat
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Written by Simon of www.italianhands.com E-dampers Front and rear accelerometers
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Written by Simon of www.italianhands.com Nivomat Self control and self power Fitted to 156 SW
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Written by Simon of www.italianhands.com Wheels and tyres Alloy wheel size 6.5J x 16 Tyre requirements: dry grip, wet grip, hydroplaning, noise, life Compound vs. tread pattern Size/diameter/width pressure Tyre life High performance tyre – outer edge more compound
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Written by Simon of www.italianhands.com Brakes Inboard vs. outboard Ventilated disc vs. solid disc Grooved, drilled, combi Sport pad vs. competition pad Bed in procedure ABS/TCS/VDC/EBD/EBA/ASR/MSR
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Written by Simon of www.italianhands.com ABS – anti lock brake system EBD – electronic brake distribution TCS – traction control system EBA – emergency brake assist VDC – vehicle dynamic control ASR – Anti slip regulation MSR - Motor Schleppmoment Regelung
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Written by Simon of www.italianhands.com Cross drilled/Groove Ventilate/Solid Overheat/warp Dust removal
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Written by Simon of www.italianhands.com Safety Fire prevention system Inertia switch Crumble zone Pretensioner ISOFIX Collapsible column Air bags Dual zone air con
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Written by Simon of www.italianhands.com Body Galvanized steel Multi layer door Xenon light Anti abrasion coating Weight distribution Polar moment
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Written by Simon of www.italianhands.com AutoDelta Its Tuning philosophy J10 J11 J12: Turbo GTA AM: Bigger bore Super: Roterx Supercharger Engine, suspension, brakes, transmission
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Written by Simon of www.italianhands.com Roterx
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Written by Simon of www.italianhands.com Thank You
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