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Thread: 1.6 twinport sxi mk5 engine modifications help!

  
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    lewy k's Avatar
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    Thumbs Up 1.6 twinport sxi mk5 engine modifications help!

    i have just recently invested in a new astra mk5 5 door sxi 1.6 twinport and i am wantin to get the greatest amount of bhp out of the engine i can without decreasing the performance in the engine itself i have started the ball rolling with a k&n induction kit where should i go from here any advice ?

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    sxibeast's Avatar
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    Cat back exhaust, new exhaust manifold, Cams, inlet....depends how much you want to spend! Could even go down the route of a Regal turbo conversion or throttle bodies!
    Bass, the final frontier

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    lewy k's Avatar
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    Cheers mate if I got a turbo conversion would this mean new gear box the lot ? How much bhp would you think this would take me up 2 ? And what price region ?

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    The Regal conversion uses all standard parts and is reversable so it can be removed with relative ease! I dont think you need to change the gearbox, but price-wise you are looking at £4kish! As for bhp, not sure on that, but the Regal site will have more info on the conversion!
    Bass, the final frontier

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    Increase the performance without decreasing the performance of the engine? What?

    They can be tuned, but a turbo conversion would cost more than dropping a VXR lump in and never achieve anything like the same power.

    You're a tad stuck with big power mods like inlet manifold, as I think the twinport manifold can't easily be swapped, if at all. Unsure on cams too, does the twinport manifold not also mean the cams can't be changed easily? Not sure.

    Catback exhaust, intake mods that pull cold air in (avoid open cone filters), might be the limit and might see 125-130bhp max with vague amounts of luck.

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    its will cost sooo much and most insurance companies wont even touch u.

    why didnt you buy a turbo or something?

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    lewy k's Avatar
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    That's what I was thinkin lads gonna start wiv a new exhaust system get it de cated and obviously look into what yous ave said along wiv a re-map

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    lewy k's Avatar
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    I needed to get summit wiv a low insurance group because my licence isn't the greatest so I thought the way of getting round this would be to get a car and do it up my mates are prepared to help wiv the mods and that and fittin them its just that they havnt got astras all started wiv really low engined cars some of them are lethal my mate is pushin 260 bhp out of what started off as a 1.2 corsa dropped a 2 litre turbo engine in along wiv all the dumbvalves the lot is unreal kills some audis and bmws

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    alan hanson's Avatar
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    so whats hapens when you declare the mods?

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    Vauxhall astra 1 .6 twinport ive put a pipercross cotton induction kit on but doesnt seem to make much sound any ideas why?

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