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Thread: vectra 1.8 and 1.8 vvt difference

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    Regular Member Jow20's Avatar
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    Default vectra 1.8 and 1.8 vvt difference

    I know it stands for variable valve timing and meant to be abit more economic but does the vvt drive different to the normal 1.8? My vvt i have now doesnt seem to accelerate as hard as my old standard 1.8 is that normal on the vvt?

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    Regular Member Chris SRi's Avatar
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    VVT is 140bhp, normal is 120bhp. When my VVT mech went it felt really flat. No power at all. Its in the engine troubleshooting section with the fault codes etc.

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    Regular Member MACVVT's Avatar
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    Vehicle : vectra c

    Trim : sri

    Engine : 1.8 vvt (XE18XER)

    Year : 2008

    Mileage : 28,000

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    changing gears at 3000-3500 rpm you should be doing 60mph + before going into 4th gear reving to 5000 rpm in 4th should see 100 mph, mine runs 150 bhp with cat back custom exhaust, 1.8 in 3rd gear should reach 80-90 mph , VVT a little bit more but achieves it faster.

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    Regular Member Jow20's Avatar
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    There is no faults shown or lights on dash. Is there a link? Was is expensive to sort your vvt mech out? Cheers

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    Regular Member Chris SRi's Avatar
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    The car with spanner light only showed with the ignition on after all the other lights had gone out. I'll get the link now.

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    Regular Member Chris SRi's Avatar
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    Regular Member Jow20's Avatar
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    Just noticed the airbox had no pipe connecting it to front of car! Will that be affecting? And where can i get one?

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    Regular Member Chris SRi's Avatar
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    It will probably make a difference as it won't be able to breathe as intended. Get one from scrappers or ebay.

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    Regular Member rich r's Avatar
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    Do both the 1.8 and 1.8vvt you've driven have the same gearbox? The is a close ration gearbox or a wide ratio gearbox fitted to the 1.8 litre engines, depending on model.

    The more 'comfy' models (Elite, Elegance, Design etc) have the wide ratio gearbox, which is slower to accelerate, but cruises at a lower rpm. The 'sporty' models (SRi, SXi etc) usually have the close ratio gearbox which is faster to accelerate, but needs a higher rpm to do the same speed. For example, 60mph is about 500rpm higher in 5th gear in the close ratio models.

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