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strangerover Lifetime member
Joined: 17 Oct 2006 Posts: 4357 Location: Ashton-in-Makerfield
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Posted: Thu Jan 18, 2007 14:17 Post subject: |
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Yesterday went from Liverpool to Buxton to Barrow to Kilmarnock back to Liverpool...
40PSI all round up to Kilmarnock with trailer, back with out....
it is better at 40 psi !! no probs with traction at all, breaks work fine in fact maybe even better as the front does not sink as much now the tyres are harder....
handling is transformed too !
Used 3 tanks of fuel.. no idea of miles done.. it was a long day ! _________________ Regards
Mark |
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Posted: Thu Jan 18, 2007 14:17 Post subject: Google Ads keep this community free to join! |
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Merf Lifetime member
Joined: 09 Jul 2006 Posts: 69 Location: Bradford
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Posted: Thu Jan 18, 2007 14:51 Post subject: |
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I have been following this thread with interest and increased my tyre pressures to 40psi all round yesterday.
Since then, I have felt that the Deli has handled better and moved more easily. This could just be a case of auto-suggestion but it certainly felt better. |
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Lawe Lifetime member
Joined: 28 Oct 2005 Posts: 528 Location: Irthlingborough, Northamptonshire
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Posted: Thu Jan 18, 2007 16:59 Post subject: |
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REDNECK wrote: |
Glad to hear you avoided the idiot
I thought the Deli probably would be okay with increased tyre pressures as it's such a heavy vehicle the tyre footprint is still good (see my previous link) but lighter cars can become very skittish on higher pressures or in fact on too wide a tyre. Contrary to popular belief (boy racers belief ) they can be what is termed "over tyred" in that the weight of the car is too light to make the wider tyre perform to it's maximum, any way i digress (waffle )
Glad the Deli and you are fine |
Cheers mate.
Your right about "normal" cars and over inflation. Is that a trick some naughty dealers use to make the car easier to steer? |
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mythatsabigun
Joined: 22 Dec 2004 Posts: 922 Location: South...West...(very)
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Posted: Thu Jan 18, 2007 19:17 Post subject: |
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Yup - me too....my tyres indicate a max pressure of 41psi, so going by the max-10% I've gone for 36psi and it certainly feels 'much better' - can't quite quantify how, other than to say it feels smoother somehow.
Thanks guys
Dave. _________________ Deli finally sold - don't ask :-(.......Me signing off, thanks for being such a brilliant forum, keep 'em going - May be back if I can start earning decent dollar again - take care y'all ;-) |
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bobber
Joined: 19 Apr 2006 Posts: 273 Location: Aberdare, South Wales
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Posted: Sun Jan 21, 2007 11:06 Post subject: |
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MMM... This looks interesting, i shall try mine today |
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Marcus Bloke
Joined: 26 Apr 2004 Posts: 470 Location: Beaconsfield, Bucks
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Posted: Sun Jan 21, 2007 19:17 Post subject: |
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This sounds good I always thought 30psi was way to low going to top mine up now.
Mark. _________________ NOW 100% BIO DIESEL,
Chunkey monkey
Worx monkey
Twice the fun !
Mantained & Modded By SVS 01202821222 |
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rebelrider4711
Joined: 24 Oct 2006 Posts: 209 Location: Bridgnorth, Shropshire. U.K.
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Posted: Sun Jan 21, 2007 19:42 Post subject: Inflated @40psi |
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Whoa, well i have inflated mine to 40 psi, and it is better, i have Bridgestone Duellers A/T, it says max psi 35. So we shall see, i will leave them at 40 psi for a week or two, must say though the front end does not dip like before. Regards Franklyn... _________________ Delica, if only I'd known sooner *******
Delica exceed Star Wagon 2.5 TD Auto 4x4 1993
Green over gold .........................Cool......
Low roof, Roofrack, Rear Ladder S.W.B. L300 / bike Yamaha XVS 1100 Dragstar. 2002 |
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REDNECK
Joined: 18 Sep 2005 Posts: 1085 Location: Dorset
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Posted: Sun Jan 21, 2007 19:52 Post subject: Re: Inflated @40psi |
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rebelrider4711 wrote: |
Whoa, well i have inflated mine to 40 psi, and it is better, i have Bridgestone Duellers A/T, it says max psi 35. So we shall see, i will leave them at 40 psi for a week or two, must say though the front end does not dip like before. Regards Franklyn... |
That sounds a bit dodgy to me, inflating them to over what the manufacturer recommends :? _________________
No Deli anymore, Mk2 Pajero instead, 2" suspension and body lift, 35's, twin winches etc |
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petemillis
Joined: 11 Mar 2004 Posts: 709 Location: Brighton, UK
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Posted: Sun Jan 21, 2007 20:07 Post subject: |
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Definitely do NOT inflate above the pressure shown on the tyre sidewall. If it says 35psi then inflate to 35psi.
Also, the pressure to which you can inflate tyres depends a lot on the tyre itself. The vehicle manufacturer (Mitsu) in this case specify a certain pressure but this is based on the standard tyres. Some tyres are much stiffer and can be inflated to a much higher pressure. If you inflate a softish tyre to a high pressure then the profile of it goes wrong and you end up with less tyre in contact with the road (just the centre rather than the centre and sides of the tread). These are the types of tyres that will have a max pressure rating of perhaps 35 psi. Stiffer tyres can hold higher pressures without deforming which is why light truck tyres are often marked as rated at 75psi or more - they have stiff sidewalls.
Pete Millis from Brighton _________________ Pete
1995 Delica Space Gear Exceed (PE8W) in LaGuardia silver with chrome tints and BIG round things. |
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Stouffer
Joined: 11 Sep 2005 Posts: 1059 Location: North Kent, UK
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Posted: Sun Jan 21, 2007 20:07 Post subject: Re: Inflated @40psi |
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REDNECK wrote: |
That sounds a bit dodgy to me, inflating them to over what the manufacturer recommends :? |
Very Dodgy! It should be 10% BELOW the max. pressure and only used as a rough guide till you find the sweet spot pressure wise! _________________ Andy
'True knowledge exists in knowing that you know nothing...'
Turned on, tuned in, freaked out! (by L400 - Volvo remix) Blue over Silver with shiny tusks and yellow eyes) |
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Lawe Lifetime member
Joined: 28 Oct 2005 Posts: 528 Location: Irthlingborough, Northamptonshire
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Posted: Sun Jan 21, 2007 22:31 Post subject: |
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Just done a smooooth trip to the inlaws in Poole and she was perfect!
Had noticed that the fuel needle didn't drop as much this time :D
Mind you it did on the way back the needle dropped - extra weight from the top curry we had (and seconds ) though the extra wind did help speed the journey up |
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mythatsabigun
Joined: 22 Dec 2004 Posts: 922 Location: South...West...(very)
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Posted: Mon Jan 22, 2007 1:39 Post subject: Re: Inflated @40psi |
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rebelrider4711 wrote: |
Whoa, well i have inflated mine to 40 psi, and it is better, i have Bridgestone Duellers A/T, it says max psi 35. So we shall see, i will leave them at 40 psi for a week or two, must say though the front end does not dip like before. Regards Franklyn... |
C'mon Franklyn, get a grip _________________ Deli finally sold - don't ask :-(.......Me signing off, thanks for being such a brilliant forum, keep 'em going - May be back if I can start earning decent dollar again - take care y'all ;-) |
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mythatsabigun
Joined: 22 Dec 2004 Posts: 922 Location: South...West...(very)
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Posted: Mon Jan 22, 2007 1:39 Post subject: |
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MAX psi - 10%!!!! - sheeeeeesh! _________________ Deli finally sold - don't ask :-(.......Me signing off, thanks for being such a brilliant forum, keep 'em going - May be back if I can start earning decent dollar again - take care y'all ;-) |
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rebelrider4711
Joined: 24 Oct 2006 Posts: 209 Location: Bridgnorth, Shropshire. U.K.
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Posted: Mon Jan 22, 2007 9:55 Post subject: Awwwww! |
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Why Can't i have my tyres like everybody else? okay i will deflate them to 35 psi, as stated on sidewall. I did have them at 32 psi but they always looked flat, Anyway guys you win. And if anybody says to me that my tyres look as if they need inflating, i will Bl**dy throttle em. Regards Franklyn... :? _________________ Delica, if only I'd known sooner *******
Delica exceed Star Wagon 2.5 TD Auto 4x4 1993
Green over gold .........................Cool......
Low roof, Roofrack, Rear Ladder S.W.B. L300 / bike Yamaha XVS 1100 Dragstar. 2002 |
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Aginoth Lifetime member
Joined: 26 Jul 2005 Posts: 162 Location: Weston-super-Mare
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Posted: Mon Jan 22, 2007 11:44 Post subject: |
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All very interesting, and always thought my MPG was low at 20-21 ...
Have Bridgestone Duellers so will up from 32 to 34-35 psi tonight and see what it feels like _________________ Aginoth / Dave
1996 (P) Chamonix 2.8Tdi - Dark Blue over Silver with Decals and 3 kids |
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petemillis
Joined: 11 Mar 2004 Posts: 709 Location: Brighton, UK
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Posted: Mon Jan 22, 2007 15:33 Post subject: |
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I wouldn't worry too much about the -10% thing. Been doing a fair bit of arousing, I mean browsing, and it would appear that the manufacturer's have a considerable safety margin above the pressure marked on the sidewall. It seems people are driving around in Honda Insights with tyres at 55psi, and IIRC the max rating on the tyres is 50psi. It would definitely be unwise to go above what's marked though.
Pete Millis from Brighton _________________ Pete
1995 Delica Space Gear Exceed (PE8W) in LaGuardia silver with chrome tints and BIG round things. |
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bobber
Joined: 19 Apr 2006 Posts: 273 Location: Aberdare, South Wales
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Posted: Mon Jan 22, 2007 15:37 Post subject: |
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Stuck mine up to 40psi yesterday, took a ride down West Wales, felt much better on the road, didn't seem to roll so much into roundabouts and bends, also tyres seemed to be quieter on road,(Kuhmo mud terrain) noisy beasts at best of times!! So now hoping for a few more miles to gallon.....Rob |
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strangerover Lifetime member
Joined: 17 Oct 2006 Posts: 4357 Location: Ashton-in-Makerfield
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Posted: Mon Jan 22, 2007 18:44 Post subject: |
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bobber wrote: |
Stuck mine up to 40psi yesterday, took a ride down West Wales, felt much better on the road, didn't seem to roll so much into roundabouts and bends, also tyres seemed to be quieter on road,(Kuhmo mud terrain) noisy beasts at best of times!! So now hoping for a few more miles to gallon.....Rob |
loose the muds for some AT's and that WILL give better MPG _________________ Regards
Mark |
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mythatsabigun
Joined: 22 Dec 2004 Posts: 922 Location: South...West...(very)
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Posted: Tue Jan 23, 2007 0:03 Post subject: |
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petemillis wrote: |
........It would definitely be unwise to go above what's marked though.
Pete Millis from Brighton |
Wouldn't put it past those lovely insurance folks out there to test tyre pressures post accident and invalidate your policy if you're running at pressures above max printed on tyre :? ...just a thought ...on the 'any opportunity' line _________________ Deli finally sold - don't ask :-(.......Me signing off, thanks for being such a brilliant forum, keep 'em going - May be back if I can start earning decent dollar again - take care y'all ;-) |
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andyj
Joined: 08 Sep 2006 Posts: 2412 Location: up norf
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Posted: Sun Jan 28, 2007 15:04 Post subject: |
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not being funny guys but the MAX PRESSURE on my falkens is 55 PSI
so mine can handle the 40psi
if you run a 35 max psi tyre at 40 your nuts!
I AM NOT RESPONSIBLE IF YOUR TYRES DIE
i can see me getting hate mail cos of this post :/ |
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