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Thread: x16 szr tuning

  
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    gregastravan's Avatar
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    x16 szr tuning

    hi all, i have a mk4 astravan petrol and lpg with the x16szr engine in it which runs nice and smooth, ive added a pipper cross induction kit on it which has made a small difference but nothing much really.
    does anyone know ways of tuning up the engine for some more power, was hoping to get it to around 100 bhp if possible with out spending mega bucks.
    any suggestions would be grately recieved.
    thanks
    greg.

  2. #2
    fdrightup
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    you could if you wanted to port match inlet and exhaust manifolds and the same with the inlet and exhaust ports also you could taper the throttle body below the throttle valve,
    if your exhaust manifold is cast iron then you can port the header end of the exhaust manifold and the down pipe end of the cast iron manifold also if you can weld make your own exhaust ie bigger inside diameter also you could change the centre box for a straight though type design and the same with the back box,
    also you could change the inlet and out let pipes on the cat for bigger inside diameter pipes also you could use a cold air pressure feed on your induction kit weather it be air box or cone filter but with a cone filter you need to heat shield the cone filter from engine bay heat,
    you could also exhaust wrap the exhaust from the down pipe to back box if you wanted to but don't heat wrap exhaust manifold

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    Quote Originally Posted by gregastravan View Post
    hi all, i have a mk4 astravan petrol and lpg with the x16szr engine in it which runs nice and smooth, ive added a pipper cross induction kit on it which has made a small difference but nothing much really.
    does anyone know ways of tuning up the engine for some more power, was hoping to get it to around 100 bhp if possible with out spending mega bucks.
    any suggestions would be grately recieved.
    thanks
    greg.
    Cat-back exhaust system? to me thats already mega bucks XD
    Sports cat is probably cheaper that the catback actually but you should anyone one of those

    apparently the backbox is quite restrictive, but that is usually changed when you opted for a cat-back anyway :P
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    as above

    Cat back exhaust system

    Possibly a 4-1 or 4-2-1 exhaust manifold

    they have 75bhp as standard If I remember rightly

    so I'd say 25hp is gunna be quite expensive on your engine
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    Sorry to drag up an old thread but i wanna know the same what can i do? Mine is standard Just bought a back box and wanna know more. Gonna get a race tube what else is easy to do? Panel filter bigger caf? Derestrict air box?
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    Quote Originally Posted by todd100 View Post
    Sorry to drag up an old thread but i wanna know the same what can i do? Mine is standard Just bought a back box and wanna know more. Gonna get a race tube what else is easy to do? Panel filter bigger caf? Derestrict air box?
    4-2-1 exhaust manifold £400 (with fitting from longlife)
    de-cat pipe £100 (with fitting from longlife)
    cat back exhaust £300 (with fitting from longlife)
    road fast cams £400 (around an extra £350 for parts a labour)
    piper pannel filter £30 (free takes 2 mins)
    better cold air feed £30 (free takes 5 mins)

    there the basic power upgrades for all cars
    after that you would need either turbo power or itb's with high comp pistons to see any more gains but thay anit cheap

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    not worth it mate, had the X16SZR myself and wanted to get to the 100bhp point but the ammount it costs to get to it is rather expensive

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    easy way to get 100bhp is fit a x16xel,just find an accident damaged donor car

  9. #9
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    think il leave it then, nd get a 1.8
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