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    Re: Test: M5, 320d E90, 535d tuned

    Your links are dead

    J.Seven

    Re: Test: M5, 320d E90, 535d tuned

    It' s ok now

    Re: Test: M5, 320d E90, 535d tuned

    The performance figures of the tuned 525D are amazing for a diesel car
    It's unbeliveble how much these diesel engines have developed thrue out the years.

    J.Seven

    Re: Test: M5, 320d E90, 535d tuned

    Quote:
    J.Seven said:
    The performance figures of the tuned 525D are amazing for a diesel car
    It's unbeliveble how much these diesel engines have developed thrue out the years.

    J.Seven



    I take it you mean the 535d?
    But BMWs are still ugly

    Re: Test: M5, 320d E90, 535d tuned

    Direct injection is what gives it, its power, as well as the 2nd turbo.

    They need to start using more of this technology in NA cars.
    GT3RS cup cars use a mechanical version of this technology to get 445HP out of the same GT3 motor as in the road car.

    Most cars have single injection systems or if they are lucky injection systems for each bank of cylinders.
    The problem is that each piston is in a different point of the cumbustion cyle, therefore each cylinder needs different amounts of fuel in order to maximize the efficiency of the cumbustion in each cylinder.
    Direct injection "squirts" in the exact amount of fuel needed into each cylinder based on where the piston is in the cycle. So each piston's combustion is being optimized.

    With the old systems they would calculate some type of average to squirt in equal amounts of fuel, wasting fuel and providing slightly incomplete combustion and there less horsepower and torque.

    Re: Test: M5, 320d E90, 535d tuned

    Quote:
    RR4 said:
    ...They need to start using more of this technology in NA cars.
    GT3RS cup cars use a mechanical version of this technology to get 445HP out of the same GT3 motor as in the road car.
    ...



    What are you referring to??

     
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