Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Ratty on 01 August 2009, 16:23:16
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Hi,
My Miggy Estate has 205/50R16 tyres on, does anybody know what pressure these should run at with normal loading.
Thanks
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I have 205/65R15 on mine and I keep them at 2.5Bar
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It depeds of the load of the car.If it is used for daily commute 2.2 bars(30psi) is enght.If you carry laguage it needs to be min 2.5 (35psi).
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loading is only me, a few tools in the back and the odd teenager now and again, so if i put 30psi all round would that be ok for the size of tyre and load?
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It should be ok, I do a bit of wieght in mine (the wifes shopping Lol) so I have them a bit higher.
Its also recommended for a sporty driving style.
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Do you have the vehicle manual and service books etc in the leather wallet? All the correct tyre pressures are in there for each tyre size. For loaded, unloaded and continuous speeds of over 100 mph.
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cheers fella, that'll do me :y
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Just a quick update:
Checked the tyre pressures for the first time this morning since picking the car up last week, O/S front 38psi N/S front 37psi both rears 34psi :o :o
adjusted to 30psi all round and seems to drive a wee bit better :y
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Do you have the vehicle manual and service books etc in the leather wallet? All the correct tyre pressures are in there for each tyre size. For loaded, unloaded and continuous speeds of over 100 mph.
Sorry, I missed this post, no the handbook along with the passcard and wheel key were stolen by a previous viewer of the vehicle, I have bought a new set of handbooks for it now though which should be here in a few days.
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have a look at this
http://www.omegaowners.com/forum/YaBB.pl?num=1184621237/all
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have a look at this
http://www.omegaowners.com/forum/YaBB.pl?num=1184621237/all
If you're referring to the flyer info my tyre isn't listed on there or any other tyre pressure info for the Omega hence the reason of this thread mine are 205/50 R16
Thanks
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I thought the consensus around here was 33psi all round (for light loading).
It's air, not oil, feel free to debate.
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Okay, now you've thrown doubt back into it :P Help, can someone tell me what it should be? 33psi or 30psi for 205/50 R16 :)
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205/50/16?
Are they standard or a size you upgraded to from 15"
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I don't know, I only bought the car last week, it was what was already fitted, the spare is the same size too which doesn't look like it has been used for a while judging by how dry and dusty it is. I've seen other mini-facelift Miggys with 16s on but they all seem to use the 225/55 variant.
Another symptom that does seem to point to the fact that these aren't OE sized boots is that the speedo seems to be a long way out, when my satnav is showing 30 the speedo shows about 38, this is fairly constant throughout the range I.E. 70 on the satnav = 78 on the speedo ETC. all previous cars I've had were only 2 - 3 mph out.
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The speedo error sounds about right as the tyre size is smaller than the OE tyre size. I had a senator which had the wrong profile tyres on (too small ie 55 instead of 65) and the speedo was 10 mph fast ( showed 70 when doing 60) your tyres are too narrow and with a lower aspect ratio as well try here
http://www.miata.net/garage/tirecalc.html to find out how much of an error you have.
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hmmm... so it looks like that's another job to be added to the ever growing list that's gotta be done, cheers Salty :)
Still need to know what pressure to run these at though as money is extremely tight the new tyres are gonna have to wait a wee while