I have Ruff 277's 18x8.5 front and 9.5 rear wrapped in Toyo T1Rs
What tire pressure should I run for normal driving?

 

You didn't mention tire size, but my BBS wheels are sized identically. I run 245/35-18 F and 265/35-18 R Dunlop Super Sport Race and use #34 of air pressure all 'round for the street.

 

I run 38 psi in mine.

 

Sizes are 245/40 and 275/40

 

38 in mine as well

 

If your using a wider tire than stock, and actually want to make your contact patch bigger, and take the full benefit of the new wider tire, you should run your pressure a little lower than stock.

 

38 up front AND 37.5 in the rear is what i found to be the best...they have a softer sidewall so anything higher is a good thing

 

34# cold front, 33#cold rear,

when they heat up, its normally around 37f/36r

 

I'm looking to pick a set of these as well. Anyone know where to get a good deal on these? www.edgeracing.com has some low prices, anyone know of any place lower?

 

You need to consider the load rating on the tire and adjust the pressure accordingly. I contacted Toyo when I got my 245/35 and 275/35 T-1s 19's.....they told me at least 36 in the front and at least 38 in the rears.

 

Isn't tire pressure on the placard inside the drivers door?

 

Yep, for OEM tires and normal loading of the car.

35 all around to start, and adjust to taste...

 

Oh. I figure that the weight distribution of the car, and the tire pressure to support that weight would be the same without regard to tire size?

 

Not if you increase the contact patch size or reduce the side wall height.

Weight distribution will change if you carry 10 bags of groceries (or an insane body kit...).

Regardless, starting from the OEM pressure and adjusting plus or minus is a good way to go.

 

I found the best prices at http://tires-easy.com/ - but the shop where I did my install was able to match the prices
edgeracing didn't have the rear size that I wanted, and had no idea when they would get it in. Also, since we are both in FL, I was having to pay tax through them