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    Default 155 Q4 Tipo inlet cam timing.

    Hello
    I put a Tipo 16v inlet camshaft on my 155 Q4 engine. exhaust camshaft stock. inlet camshaft timing adjustment 4 ° retard set. Is this setting correct?

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    Camshaft pulley 4 ° retard means 8 ° retard on crank. Is it correct?

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    inlet camshaft to exhaust side with stock pulley open 35 ° closed 8 °?

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    For camshafts setting there is trade-off between rpm ranges and not such thing as absolute correct setting. Depend on car setup, what is the goal, where is important rpm range and from where can be compromised. In short correct for what and for what spec car.
    Did you have adjustable cam pulleys? If not you will be limited to move by teeth on cam wheels, which is probably the case here. In my opinion for particular setup optimal will be to be tested several combinations between intake and exhaust for 1,2 teeth move in advance, retard and to be chosen that one which you like the most. On dyno will be best. Will the car be live mapped or be used some generic tuning chip?
    Here is one good thread on that subject in www.fiatcoupeclub.org/forum -> link. If you are not registered you will not be able to see it.
    There is good data for camshaft options on http://www.lanciahf.eu site in section "Arbres à cames".
    One performance car is not enough ...
    Alfa Romeo GTV 2.0 V6 TB Q2
    Alfa Romeo 155 Q4 Sport "widebody"

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    Default

    Thank you for the answer. I have adjustable pulleys. I installed the camshaft tipo 16v. full lift set to 112 °. Exhaust camshaft oem. I did not adjust the setting. full lift set to 105 °.

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    my car 1994 Alfa Romeo 155 Q4. The power I'm targeting is about 300 hp.

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