bB2NER

The more I thought about it I agree with your idea. Because they chose the WRONG struts and shocks outta the box, the 29 psi was a bandaid to help cure it.

OTACORB

I just put new tires on my box and I also brought it to a front in alignment shop. This guy has a great reputation and has been doing front in alignments for 40 years. He told me that I should put 40 psi in the front and 30 psi in the back. He also told me to ALWAYS get the tires rotated every 6,000 miles without fail, which I already knew. Anyway, I did what he said and I found the ride to actually be a lot better.

pooder

Different in front and rear?? And this guy knows more about tire pressures than Scion does??? Hmmmmm . . . . .

bB2NER

Scion didn't know much about what struts and shocks to use so why is it such a stretch that they messed up the tire pressures?
How bout someone find out what the recomended tire pressures were for the bB. I'd be surprised if they were as low as the 29 psi suggested for the xB.

BoxOffice

That's a very old front-wheel-drive practice to help cure the inherent understeer that was so overwhelming in early front-drivers back in the '70s, etc. (although usually not that big a differentiation front to rear; more like 4-6psi). Progress in both basic suspensions, chassis rigidity and the use of front and rear sway bars, etc., have taken away most of that problem (though it is still somewhat built-in by most most car manufacturers as a safety precaution so that John Q. Public doesn't slide his car backward off the first hot corner he takes - a la Porsche Turbo - and sues the manufacturer!), so cars like ours now come with even front/rear recommended pressures.
However, as you found, you can get the car to be a bit more "neutral" cornering-wise by doing this kind of thing - though I'd be hard-pressed to run 40 on my own car - and you might even be able to induce some oversteer if you take the pressure differentials to enough of an extreme. I do this on my aftermarket tire and wheel setup, with about 36 front, 30-32 rear. It makes the car feel less like the front end is going to push out in hard cornering.