Choosing Tire Pressure for 79 SC

[OsoMoore]

I've owned my car for just over a month, and I need to make sure my tire pressure is correct.
On the front I have "255/40ZR17 94Y". It is rated at 50 PSI max.
On the back I have "255/40ZR17 94W M+S". It is rated at 51 PSI max.
They are Falken FK.
All tires are currently 27-33 PSI.

My owner's manual says 29 front, 34 rear.

Based my searches and some guesswork, I've concluded that my tires are on 17" rims. The front is about 9" wide and the back is about 10".

Should I go with the manual's pressure? I suspect its cites pressure for the original tires, and these should be loaded differently.

[wildcat077]

The rims look like Cup 1 replicas most likely or Oem's if you have large spacers and are 7 1/2 inch wide for the fronts and 9 inch wide for the rear.
Stick with the 29 and 34 psi rating and you will be fine.That's what i run my 17 inch tires at for street driving.

Cheers !
Phil

[Oh Haha]

Originally Posted by wildcat077

the rims look like cup 1 replicas most likely or oem's if you have large spacers and are 7 1/2 inch wide for the fronts and 9 inch wide for the rear.
Stick with the 29 and 34 psi rating and you will be fine.that's what i run my 17 inch tires at for street driving.

Cheers !
Phil

+1