dazzle

Hi everyone,
I put new oem Honda 17" alloys on my 5th gen recently, and I need some advice as to what the best tyre pressure's are for 215/40/17 set up. I used to put 33psi into my stock 205/50/16. My local Honda dealer sevice manager suggested that I should probably up the psi by 3 or 4.
Input please.
thanks in advance,
dazzle.
UK 97 Black 2.2 Vti 5sp.

joedaddy

yea...i put about 36 in my 215/40/17

Niffum

It should be printed on the tires, max at least. I usually put maybe 5-7 lb less from max.

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Rides on H&R Sports with KYB AGX and Work Emotions.
Now with OEM lip, Mugen sides and rear and Apex'i World Sport!

alvanderp

always run the recommended tire pressures in the owners manual(also listed inside the door jam) for daily driven street use. If you run too high or low pressures, you can wear out the tires prematurely.

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joedaddy

that's for stock tires..not for aftermarket low profile ones

alvanderp

No thats for any tire, you dont need additional tire pressure in a lower profile tire, unless you are worried about extreme potholes, but you will end up wearing out the tire sooner with too much air. A couple psi isnt gonna make much of a difference in a DD car anyway.

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joedaddy

r u sure? BMW recommend 36 for 18", and 32 for 17's

yield

tirerack told me to stick with the car manufacturer's recommended PSI on low profile tires as well.

I'm not sure if this is because they are wider than stock so they can actually handle more weight since the same PSI is spread across a larger surface? (e.g., instead of 32 PSI across 6.5inches, you have 32 PSI across say 7.5 inches, which should be able to handle higher loads yes??). Can someone give a definitive answer?

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joedaddy

i used to put in 32psi for my 215/40/17
and then i bumped it up to 36..and u can actually SEE the tire stand up...which told me that it probably needs that much...

bumping stock size from 32 to 36 will not show this "growth"

SunShine287

I know this is of no use, but I put 32 front and 31 back on my stock wheels and tires. When I go below 30 the tire is alittle saggy and the ride gets harsher.

You could also look at the tire, the track, and drive it around abit at various levels to see what works best. I mean, different tires and different brands likely use different pressure levels.