View Full Version : Tyre pressures..
Uncle Andy
12-03-2007, 12:58 PM
Howdy all;
Im just wondering what pressures i should be putting in the tyres i now own. Ive got 16x7's and i have no idea what pressures thay need.
Any help is greatly appreciated
Thanks
Uncle Andy
_x_FiReStOrM_x_
12-03-2007, 01:36 PM
Howdy all;
Im just wondering what pressures i should be putting in the tyres i now own. Ive got 16x7's and i have no idea what pressures thay need.
Any help is greatly appreciated
Thanks
Uncle Andy
Depends on how and where you drive the car. Dry, normal city driving, 34-5psi (cold) is fine.
Damo_ooyar
12-03-2007, 01:47 PM
Check on the drivers side where the door closes, there should be a silver panel with recommended tyre pressures on it... but yeh 34 would be pretty well suited
BiG 4 CyL
12-03-2007, 02:31 PM
Check on the drivers side where the door closes, there should be a silver panel with recommended tyre pressures on it... but yeh 34 would be pretty well suited
thats only for the stock wheels and tyres isnt it?
technovamp
12-03-2007, 04:22 PM
If it's stock, I will go 34 PSI. I tend to find the recommended PSI (32 i think) a bit too soft.
Uncle Andy
12-03-2007, 09:34 PM
Howdy all;
Thanks for the help so far. I checked them this morning and the guage that i was using had a reading of about 35-36 ish but one tyre (at that pressure) looks like its going flat. ill have another look tomorrow and see what its like then.
Thanks
Uncle Andy
Twunka
12-03-2007, 09:42 PM
lol just had a mental image of a dude hunched over bouncing around his car on all fours muttering about "my pressures", anyway it depends on how u drive it n stuff, i usually run my stockies on about 32-36 but if i'm goin to the track or anything (i use my car for road and dirt rally) i'm often known to bump it up to around 38-40 psi,
btw never look at the tyre and think well it needs more air, it looks flat, fronts will always look lower pressure due to the weight, look at the rears on a 911 thost things look like the rims are scraping
Damo_ooyar
13-03-2007, 07:31 AM
thats only for the stock wheels and tyres isnt it?
Yeh its for the tyres that came on the vehicle, but since the tyre size is only 16 x 7 these guides will be sufficient
Uncle Andy
13-03-2007, 08:09 AM
Howdy all;
I had a close look and discovered that they, the rims, are actually 16x6. WOuld that change anything or would 35-36 still be ok?
Thanks
Uncle Andy
Damo_ooyar
13-03-2007, 08:17 AM
Nah man not a single thing....
Howdy all;
I had a close look and discovered that they, the rims, are actually 16x6. WOuld that change anything or would 35-36 still be ok?
Thanks
Uncle Andy
Pump it to 38. Anything less and the tyres sag too much, especially the front. This creates
more rolling resistance and hence causes the car to use more fuel. When I had the stock
16x6 with 215/60R16 tyres, I had all 4 tyres pumped to 40 and I was still wearing the
shoulders faster then the centres.
Damo_ooyar
13-03-2007, 08:32 AM
Pump it to 38. Anything less and the tyres sag too much, especially the front. This creates
more rolling resistance and hence causes the car to use more fuel. When I had the stock
16x6 with 215/60R16 tyres, I had all 4 tyres pumped to 40 and I was still wearing the
shoulders faster then the centres.
How old were ya tyres at that stage, cos 40psi is pretty high and to be still rubbing shoulders at that pressure is somethin I have nvr come across.
How old were ya tyres at that stage, cos 40psi is pretty high and to be still rubbing shoulders at that pressure is somethin I have nvr come across.
Brand new from factory.
I have a lard **** of a car weighing in at 1700kgs so the 6" width wasn't really suitable for
the 215mm wide tyres. I now have 225mm wide tyres on 7" rims and at 36psi, there's
hardly any bulging of the tyres.
Holdens and Fords with the 16" rims with 215/60R16 tyres have at least 6.5" wide rims.
Killer
13-03-2007, 09:26 AM
It soo depends on the tyre it self - ie what is the Load Rate and how stiff is the side wall and so on. Every tyre is different, so some experimenting is required.
In Vlad's case, I think hard cornering was major contributor to excessive shoulder wear.... :D
Note also, that front tyres require more pressure than rear as per tyre plackard - keep the same ratio when pumping up. Say, 32 at rear and 36 at front and start from there. Once u get too high in the pressure, car gets quite "airy" at higher speeds, so back off from those pressures.
When I had the stock 16x6 with 215/60R16 tyres, I had all 4 tyres pumped to 40 and I was still wearing the shoulders faster then the centres.
gremlin
13-03-2007, 10:08 AM
i run 45psi in my 20s.. nothing less...
low tyre pressures recommended by manufacturers are for comfort only.. handling and tyre life is better off with higher pressure..
It soo depends on the tyre it self - ie what is the Load Rate and how stiff is the side wall and so on. Every tyre is different, so some experimenting is required.
In Vlad's case, I think hard cornering was major contributor to excessive shoulder wear.... :D
Note also, that front tyres require more pressure than rear as per tyre plackard - keep the same ratio when pumping up. Say, 32 at rear and 36 at front and start from there. Once u get too high in the pressure, car gets quite "airy" at higher speeds, so back off from those pressures.
The stock tyres were the bridgestone Grid II which has pretty stiff sidewalls compared to
non-sports tyres and has a load rating of 95.
Current tyres are Hankook Optimo with 98 load rating.
well i have my stock rims on the rada and i have 40psi cold in them and i find it nice and smooth ride :)
rather then start another thread, i got 17*7 maybe 17*8. What PSI should i be running? only city driving sum hills runs.
gremlin
13-03-2007, 08:20 PM
rather then start another thread, i got 17*7 maybe 17*8. What PSI should i be running? only city driving sum hills runs.
id suggest 40psi but i like a firm ride
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