S2000 Tyre Pressures

[greek_rambos2k]

Hey guys was just wondering what tyre pressures i should run/ you guys run. i dont have stockies im running front 225/45r17 rear 255/40r17

thanks :D

[dlai5552]

I will be running the same :) except 235/40/17 on the front.
although, all tyres are different and really depends on the compound and what the tyres will be used for.
more info please :)

[greek_rambos2k]

iv got Yokohama advan ad08s :D. i dont track at all. haha i dont think i can fit a 235 on the front with my offset.. 225 just makes it and im running camber

[dlai5552]

ohhh... what offset? i have 9" wheels, on +45.
and wow, you're running ad08's without tracking... arent they semi's??
and anyways, for the track you should be running around 27-32 psi, so the tyre pressure will heat up and expand to a larger pressure. That is the pressure I ran on my dunlop semi's
so I think, for the streets.. running around 34-36 psi. I think so, because you don't want the pressure to rise radically over 40psi, otherwise they start losing grip.
That is just from a bit of research I have seen.
Anyone else have some input :)

[dlai5552]

woops.. i was thinking of A048's. but the AD08's are street tyres, but high performance.
But the info I got on psi was on AD08, not semi slicks :P

[VeYzZii]

I just go by what it says on the tyre. I dont track, so im blank there LOL

[dlai5552]

I was reading that the AD08's can hit Max. 50 psi.
although, didnt see a recommended, but do not go near that LOLOL!

[9large]

greek_rambos2k, for AD08s, 32psi (warm) should be sweet for the street :thumbsup:

[greek_rambos2k]

mad. thanks guys

[greek_rambos2k]

ohhh... what offset? i have 9" wheels, on +45.
and wow, you're running ad08's without tracking... arent they semi's??
and anyways, for the track you should be running around 27-32 psi, so the tyre pressure will heat up and expand to a larger pressure. That is the pressure I ran on my dunlop semi's
so I think, for the streets.. running around 34-36 psi. I think so, because you don't want the pressure to rise radically over 40psi, otherwise they start losing grip.
That is just from a bit of research I have seen.
Anyone else have some input :)

Sizes are

17x7.5 48 offset 225/45r17
17x8.5 59 offset 255/40r17

i dont track but i do like grip and the ad08s are epic. even when you do lose traction its very easy to control it compared to my rubbish stockies. they are a street tyre

[dlai5552]

Ohh okay. Yeah, I've heard good things about. Could you pm me the price you got them for :)

[zhong]

I run 38PSI all round.. but that's just my liking..

225/45
255/40

[dlai5552]

Hey Zhong,
Is that on cold or hot?

[zhong]

Melbourne weather, so both. :P

[vyets]

tyres wont get hot on the street lol. run higher psi save fuel :D

[zhong]

^^ :thumbsup:

[dlai5552]

tyres wont get hot on the street lol. run higher psi save fuel :D

is that true?
can some explain please :) in regards to the saving fuel
thanks.

[l3vnd1]

tyres wont get hot on the street lol. run higher psi save fuel :D

Thats not true. Depends how you drive and the speeds you do.

Even without cornering, Drive on the highway and when you pull over feel the heat in your tyres. Better yet - compare the reading with the cold temp reading and see the difference.

[greek_rambos2k]

is that true?
can some explain please :) in regards to the saving fuel
thanks.

i think its higher psi = less rolling resistance so you get better fuel economy

[l3vnd1]

is that true?
can some explain please :) in regards to the saving fuel
thanks.

It is true but you sacrifice other components in order to achieve this

[vyets]

Your tyres will get warm on street driving but not hot hot, so the psi wont get raised that much anyway not to mention 90% of the time you drive on the street it will be cold anyway so no point calculating in hot tyre pressures unless your really that fussy.

[nigoape1]

i main run oon track so i normally have all 4 same 26PSI cold and 28 warm psi and back after few runs bcomes 34 psi
my tyre set up is 225/45 and 255/40

[VeYzZii]

It is true but you sacrifice other components in order to achieve this

What would you sacrifice?

[dlai5552]

Sacrifice your Vtec by not hitting it as much anymore thus reduce your regular fuel consumption haha

[l3vnd1]

What would you sacrifice?

Well think about it

By over inflating your tyres you have reduced their contact patch with the road. This leads to less drag which can increase fuel consumption but also has reduced grip (depending on how much you inflate them and how hard you drive), uneven tyre wear and a harsher ride.

I found with the S2000 that with stock rims and suspension, the factory PSI recommendations are perfect.