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Thread: Looking for more power...

  
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    otis p's Avatar
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    Looking for more power...

    Hello,

    Your opinions please;

    Is it worth trying to eek out a bit more power from a 1.6 16v SXI or would it be easier to buy a 1.8 or 2.0?

    Thanks


    Otis
    SXi <---> 1.6 <---> 16v

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    AdamH-SRi-T's Avatar
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    hey mate, theres a guy on here called stevec who's selling a custem inlet manifold i think for 200 quid, check the classifieds.

    Also if you have some money get some cams and remap it you'll see more power

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    Quote Originally Posted by Adam_Astra_SXI View Post
    hey mate, theres a guy on here called stevec who's selling a custem inlet manifold i think for 200 quid, check the classifieds.

    Also if you have some money get some cams and remap it you'll see more power
    Hi threr Adam sorry i'm a bit of a newbie when it comes to car mods what are cams? and how do they work thanks

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    your car is already fitted with them obviously but you can buy high lift or fast road (think their the same thing) to get higher revs and more BHP/torque... do a search for 'fast road cams' on the LMF or courtney vauxhall or the regal website. then you can have a more detailed explanation of how they work and what performance you'll get as i am no expert either lol

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    Thanks Adam cheers

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    Check the sticky at the top of this section for the main modifications on this engine.

    Airbox mods, Vectra intake pipe (don't bother with panel filter if you ask me), catback exhaust system. These are cheap enough, then you start looking at other more expensive things.

    I'm not 100% on uprated camshafts myself - regrind yours via Piper to fast road spec for about £200 or, preferred to reduce wear and tear on the cylinder head components, replacement new camshafts for ~£400 a pair from Piper to the same fast road spec. Should see 5-7bhp or so.

    Courtenay reckon their cylinder head gas flow/port is worth 10% bhp and torque across the entire rpm range alongside improved fuel economy. Not bad really but £465 + the labour and parts to remove and refit the head. Probably not cheap but a nice mod.

    Inlet manifold is pretty restrictive and can be changed, either a fair bit of work and less cash to sort a powerbox out or go the full hog and sort a DBilas inlet manifold for about £1000 which includes an almost essential remap. This can see around 20bhp but unsure on the torque increases as I've still to see a 1.6 16v rolling roaded with one of these fitted.

    Engine can see 150bhp+ but it'll cost you

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    Well said nry i was waiting for you to pop along

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    Not that I've looked into this myself much

    If it were me in an ideal world:

    Catback exhaust
    Cylinder head work as above
    DBilas inlet manifold
    Remap

    140bhp+ without much of an issue and no faffing with cams either. Drop a pair of fast road cams in and you'll probably manage 150bhp and with the head work too, over 140ftlbs torque along the way and torque is pretty useful

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    Quote Originally Posted by nry View Post
    Not that I've looked into this myself much

    If it were me in an ideal world:

    Catback exhaust
    Cylinder head work as above
    DBilas inlet manifold
    Remap

    140bhp+ without much of an issue and no faffing with cams either. Drop a pair of fast road cams in and you'll probably manage 150bhp and with the head work too, over 140ftlbs torque along the way and torque is pretty useful
    Now that you get all the extra power, can we use the existing clutch/transmission?

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    Thanks for your replies. By your reactions I take it that it’s of unanimous opinion to eek out the power than chop it in for a bigger engine.

    Cheers guys
    SXi <---> 1.6 <---> 16v

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