215/40/17 tyre pressures
hi guys
just bought 4 of the above tyres toyo t1r but on coming home giving it a bit round the twisties it felt like the tail wanted to come out!! never had this before on original 205/45/17 tyres just wondered should i adjust the pressures??:cuckoo: there is 32 all round at mo cheers nick. |
30-32 for the fronts and 26-28 for the rear, use the lower pressures if just you in the car and increase slightly if you regularly have passengers:)
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thats great mate cheers for the info:)
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''giving it a bit''
on brand new tyres ?????????????? that's the reason the tail was trying to come out tyre pressures are the same regardless of 205/45 or 215/40 |
Originally Posted by scoobyDAZZA
(Post 7685490)
''giving it a bit''
on brand new tyres ?????????????? that's the reason the tail was trying to come out tyre pressures are the same regardless of 205/45 or 215/40 |
Just my experience.
When I bought 4 new Toyo T1R's on 215/40/17 I contacted Toyo UK and a technical guy there said to run 36 front and 33 rear (cold tyre pressures). |
Originally Posted by RB5Caterham
(Post 7690340)
Just my experience.
When I bought 4 new Toyo T1R's on 215/40/17 I contacted Toyo UK and a technical guy there said to run 36 front and 33 rear (cold tyre pressures). |
What model are they on? and what is the load rating of the tyre?
I have ran with these and they have a soft sidewalls. I would run with what RB5 says, i too found this from Toyo's technical dept. I ran with 31 back 36 front on a classic, found this to be the best, you will need a good 500 miles on them to scrub them in. |
hi you might have tyre roll because the rims arnt wide enough for 215 tyres i was going to get some on mine but was advised not to by the tyre fitter.
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Originally Posted by pete.taylor
(Post 7693506)
hi you might have tyre roll because the rims arnt wide enough for 215 tyres i was going to get some on mine but was advised not to by the tyre fitter.
The original tyres would have been 205x50x16 on a classic, so you are only going up one size on the rim and coming down in profile. |
I upped my pressures today in a (vain) effort to get a little more mpg, but also to see what effect it would have
F were 30 R were 28 F now 34 R now 30 result: I nearly crashed!..handlingis completely different to before: the understeer is worse, but its alarming how quickly the rear comes around off the throttle think I'll go back to the old pressures |
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