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PsYcHo

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Om PsYcHo

  • Bursdag 05/04/1987

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  • Interesser
    Bil,trening,fyll
  • Modell (eks S4)
    Coupe
  • Biltype (eks Audi)
    Audi
  • Årsmodell (eks 1995)
    1989
  • Yrke eller sivil status
    Lærling
  • Motor (eks 1.6)
    2.3
  • Modifikasjoner (eks konfilter, eksos)
    Kommer..

Contact Methods

  • Website URL
    http://
  • Bosted
    i garasjen...

PsYcHo's Achievements

  1. Hvordan er det ser ut med bakplate til RS2 på en Coupe da? Noen som har bilder eller noe? Gjerne med RS2 bakfanger også..
  2. PsYcHo

    Diff. sperre

    Man oppnår jo da 100% sperre bak. Noe som resulterer i en voldsom slitasje på dekker osv. Kan jo sammenlignes med det å sveise sperre. Meget mulig Quattro driverket tåler det,men det er jo ikke å anbefale. Hvertfall ikke kjøre med dette hver dag på tørt føre:blunk:
  3. Så sant det ikke er en RS 500 blokk da,de heter vel også 205?
  4. Skjønner ikke helt hva du mener her men.. Poenget mitt var at Cosworth har vært borti andre merker også. Ikke bare Ford,men det er da ingen andre motorer som er blitt like bra som den gode gamle Cosworth motoren..Hører jo ikke noe om de andre..
  5. Så hvorfor hører vi ikke om Audi S4 Cosworth da? Vet at Cosworth har "hjulpet" andre merker også, er klar over det. MEN det er et STORT men her,de har da ikke blitt halvparten så bra og populære som Cosworth motoren som sitter i Sierran og Escorten. Det var jo der det hele begynte i en Ford. Costin og Duckworth eller hva de heter dannet vel i samarbeid med Ford Cosworth merket. Men uansett Cosworth motoren som sitter i en Sierra eller Escort er vel uansett mer kjent enn noen av de andre motorene de har laget..
  6. Hvor kjøper man dette nytt da? En forhandler i Norge eller no? Tenker da på disse med litt mer kvalitet enn de Bilextra selger....
  7. bilde? hva vil det si at det er smalbandslambda da?
  8. Husk at det er mye som spiller inn på forsikrings summen da. Hvor du bor,bonus,alarm,garasje osv osv. Ta deg en tur til forsikrings selskapet og hør med de du,men still opp på trappa deres personlig,det virker så mye mer seriøst...
  9. How the turbo Anti-Lag System works Bang-bang (also known as ALS which stands for Anti-Lag System) is an engine management technique that allows to minimize the turbo lag time. As you might be aware of, turbochargers display what is known as lag time which is the time needed for the turbine to reach its full throttle from an intermediate rotational speed state. The duration of a turbocharger's lag depends on many factors among which its inertia, airflow efficiency, back pressure, etc. The problem is partly dealt with by fitting a turbo dump valve, which acts each time the driver lifts his foot from the throttle. The dump valve will evacuate the pressurized air coming out of the turbocharger while the inlet manifold is closed thus allowing the turbine not to stall and avoiding possible damage to its bearings. In race cars it is very common to fit oversized turbochargers in order to be able to produce enough boost pressure and assure a sufficient engine output. Big turbochargers display significant amounts of lag due to their increased rotational inertia. In such cases the dump valve is insufficient to allow the turbocharger not to loose too much speed when the driver lifts off. Additionally rally cars hold a turbo restrictor, which is regulated by the FIA. One of the restrictor' effects is to increase lag time. This is why in racing cars, and more specifically in rally cars, where torque and engine availability are critical factors, most applications use anti-lag systems. During lag time the engine is much less responsive and its output well below nominal. To counter the effect of the turbocharger's lag time drivers used to anticipate the engine's reactions by accelerating well before they would have done in a non-turbo car. Others have used a technique, introduced by the German driver Walter Röhrl, known as "left foot braking" where the driver uses his left foot to brake the car while his right foot accelerates to keep the turbocharger in optimal load. Left foot braking is very hard on the brakes which are put into extreme stress but is very efficient in keeping the turbo spinning. ALS was a simple idea but one that was relatively difficult to implement. Only when electronic engine management systems were advanced enough to allow taking into consideration many more parameters than in the past it became possible to use them efficiently in handling ALS. To the best of my knowledge Toyota Team Europe were the first to use it in racing (Toyota's implementation is known as Toyota Combustion Control System while Mitsubishi call the system Post Combustion Control System). How ALS works When the driver lifts his foot from the gas pedal the ignition timing is altered with sometimes 40° or more of delay (retard) and the intake air and fuel supply mixture is made richer. The inlet butterfly is kept slightly open or an air injector is used to maintain air supply to the engine. This results in air/fuel mixture that keeps getting in the combustion chambers when the driver no longer accelerates. The ignition being delayed, the air/fuel mixture reaches the exhaust tubes mostly unburned. When the spark plug fires, the exhaust valve is starting to open due to the ignition delay mentioned above. Additionally, the exhaust temperature being extremely high, the unburned fuel explodes at the contact of the exhaust tubes. Luckily the turbo sits right there and the explosion keeps it turning (otherwise it would slow down since its intake, the exhaust gases, is cut-off). The effect is vastly lower response times with some downsides: A quick rise of the turbocharger's temperature (which jumps from ~800°C to the 1100°C+ region) whenever the system is activated A huge stress on the exhaust manifold and pipes (mounted on a street car a bang-bang system would destroy the exhaust system within 50-100 km) The turbo produces significant boost even at engine idle speeds The explosions which occur in the exhaust tubes generate important flames which can, sometimes, be seen at the end of the exhaust tube Reduced engine brake The ALS effect is mostly dependent on the air allowed into the engine, the more air supplied the more the ALS effect will be noticeable. Consequently ALS systems can be more or less aggressive. A mild ALS will maintain a 0 to 0.3 bar pressure in the inlet manifold when activated whereas, when inactive, the pressure in the inlet manifold with the throttle closed would be in the region of -1 bar (absolute vacuum). Racing ALS versions can maintain a pressure of up to 1.5 bar in the inlet manifold with the throttle closed. While the systems mounted in Toyota and Mitsubishi racing cars are relatively smooth and noiseless those fitted in Ford and Subaru cars are much more noisy and aggressive. The bang-bang system owns its name to the loud explosion noises one hears whenever the driver lifts off. Most racing implementations have user selectable anti-lag settings depending on the terrain, usually three settings can be selected by the driver going from mild to very aggressive. Note that some regional or national European events prohibit the use of ALS systems while more and more WRC events regulate the noise levels allowed by competition cars effectively disabling ALS. Starting in 2002 new anti-lag techniques, such as Exhaust Gas Recirculation (EGR), are slowly overtaking the method described above as they are kinder on the engine's mechanical parts. På engelsk for de som liker det. Hentet fra Rallycars.com
  10. PsYcHo

    Om cosworth

    Ja det er en bra bil. MEN man ta vare på den som med alle andre biler. Regelmessig vedlikehold er alfa og omega. Og det det mange biler som er ihjel skrudd og istykker kjørte. Derfor lønner det seg å sjekke kjøpet nøye. Eventuelt å kanskje kjøpe en bil som ikke er trimmet så mye og heller gjøre det selv. Det er vel det sikreste.
  11. Det er vel kun du og sov en et par til som er "enig" i det. Majoriteten her har nærmest tråkket Calibra ned i søla og spydd på den her..MEn hva kan man forvente når man prøver seg med en slik tråd på Cosworth delen av forumet.
  12. Ja dekaltrim vettu,enkelt og greit også bare spikre på ei alu vinge. Trimming for de som ikke vet opp eller ned på an fast nøkkel det der..
  13. Skal innrømme at jeg ikke har hørt spesielt mye om Alfa Romeo,er vel ikke akuratt noen kjent bil det heller.. Ser aldri en eneste pasta racer jeg.. Og så vidt jeg vet skriver vel Cosworth bil historie rundt omkring enda men...
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