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#1
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What is the correct tyre pressure?
I had search the forum, cant find anything close. What I have - PIRELLI DRAGON 225/45/17 Rated at 91W. Factory pressure when fitted is 38psi front and back. The sticker beside the door is 33psi Front and 28 Psi Back Light Load. Who should I trust? By the way what is the 91W rating? Higher the better? Thanks in advance
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#2
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91 = load rating W= Speed rating W is roughly rated at 270/kmph
If you want to learn more about the load ratings etc... read here http://www.lets-getaway.com/tyre-markings.htm
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....slow and steady wins the race....fark that!! |
#3
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38 is quite hard for daily driving. If going for a run out on the track, 38-40 would stiffen them up a lot.
Daily... whatever your preference is, usually around the 32 mark is a good balance between comfort and stiffness.
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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR] |
#4
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Does front and back PSI need to be the same? Do we need extra at the front for the extra engine weight?
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#5
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if anything, less at the front is slightly better i find.
i run 35 front 40 rear.
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Balls. |
#6
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From my playing around if I run less at the rear, it gets the back end to be a bit looser.
Normally I have them equal all around for daily though. The tyre placard in the car is just the minimum for a decent ride. Play around until you find the setting that suits you and your driving style.
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[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR] |
#7
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Quote:
Hmm, I haven't encounter the rear the higher than the front. I was told the front the heavier thus higher psi. But when the rear is higher and front is lower...I think I can imagine you have a high "arse" |
#8
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If your running low profile tyres then they should be around the 38 psi mark if not then 32 all round.
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#9
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When we smash new tyres on, 32 minimum. On something low profile, i always tend to bump up 34-35ish.
4wds need 36 when normal driving. Don't play with track pressures anymore, but when i used to run the s13 down at collie it'd be 35 front 42 rear. But for everyday be 32. On my 215/45/17s standard wrx rims i run 34 just push the middles out a bit more for a more evenish wear. Pete |
#10
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Just went to the servo, 40psi all around on 16" RE001 for tomorrow at AHG.
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STi Version VI |
Tags |
correct, pressure, tyre |
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