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Thread: VX Tyres Pressure vs. Tyre Warning...

  1. #1
    Regular Member Dan_BlackSRi's Avatar
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    Vehicle : Vectra SRi

    Trim : XP NAV

    Engine : 1.9 CDTi 150

    Year : 2007

    Default VX Tyres Pressure vs. Tyre Warning...

    I see that Vauxhall recommend 44 psi on the front of 19" Snowies with the CDTi, and 39 on the back, but on the wall of the my tyres, it says do not exceed 40PSI !?!?

    Are the VX pressures too high, or should I put as much as I can in (40PSI)?

  2. #2
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

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    Hmmm I run 39 all around in mine matey
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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    Vectra-C Extreme Poster Big Red's Avatar
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    Mate what tyres are you running? My sunnys say 44 or 46 on side wall im sure i run 40 all round so they dont crack lol. Would not go any lower than 38 like some people on here run 32 and 33 and they have had cracks

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    Regular Member bigbnlr's Avatar
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    I've always ran 42psi in my 18's, never had a problem

  5. #5
    Full Member Woody's Avatar
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    Vehicle : Vectra C 3.2 Gsi Auto LPG (with LUBE)

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    Engine : 3.2 Z32SE (LPG)

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    Default

    TBH with 19"'s and provided not more than 10% different, I would run the Vx pressure recommendations and next time you're replacing tyres, try to get ones with a higher limit. BUT, I would be taking a chance that the tyres would take the extra 10% and not the wheels which probably wouldn't survive a large pothole hidden by snow at more than 10 mph
    But, there again, I'm not a safety expert who I'm guessing would be telling you to get tyres that will withstand the Vx pressure ratings quoted LOL.
    I reckon these snowies were designed to look the part in Showrooms rather than "perform" on the road in the real world of GB roads

    Woody

  6. #6
    Regular Member DAVIDD88's Avatar
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    I have neutons 225/35/19 and run 36 front 33 rear
    I went with vxr fitted with 235/35/19 as I'm sure neutons say max 40 psi

  7. #7
    Full Member Leemarksmith's Avatar
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    Vehicle : Vectra

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    I do about 44 front 40 rear... I always make sure its higher as I think it's under inflation that causes the cracking on snowies IMO.

  8. #8
    Regular Member paz_badboy4life's Avatar
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    Vehicle : Vectra SRi Dual Fuel NAV

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    Dont the neutons nt5000 have reinforced sidewalls? I keep mine on either 38 or 40psi all round.

  9. #9
    Regular Member john_k_sri's Avatar
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    Vehicle : Vectra

    Trim : SRI NAV XP

    Engine : 1.9 CDTI 150

    Year : 2007

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    No. Read the tyre sidewall again. 40 PSI is max pressure when mounting the tyre. Max pressure of tyre once mounted is commonly 50 or 51 PSI. Recommended rear tyre pressures when fully loaded in VX manual are as high as 51 on 19's (varies by engine type).

    You are worrying unnecessarily.

  10. #10
    Regular Member Jekyll & Hyde's Avatar
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    Check the manufacture of the tyre’s, as some of them ahave a recommended tyre pressure for the certain cars.
    Mine for exampleis running Vrednestein tyres, and they list my car 225/45/18 as 2.7bar-39.1 Psi(front) /3.0 bar-43.5 Psi(rear), as you can see this is way above the
    recommendations from the vauxhall hand book.

    Recommendations


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