Tire pressure with new alignment...

[Lava Speed 05]

I had an alignment done on my car today and my question is with the follow specs any suggestions on where to start my tire pressure?
I'm at 37psi all around which typically I set it at 38 before an event and it's worked out well. I know the changes are going to affect this but not sure how.
I don't have a portable compressor so I'm looking for a good place to start that I would just need to scrub off some air if necessary.

Current Alignment:
Front Left Right
Castor 5.2 5.1
Camber -.8 -.9
Toe -.07" -.06"

Rear Left Right
Camber -1.4 -1.4
Toe +.07" +.06"

I know the numbers are not perfect but it's a much better starting point than the screwed up numbers I had prior and the car feels quite a bit different in a good way.
Any advise would be appreciated.

[Native]

Keep the same pressures.
Seems kinda high for a Miata...stock tires?
btw the numbers look fine.

[Lava Speed 05]

Thanks. I'm just a perfectionist, when I do bother to do something, so since it's not 100% perfect left to right it irks me even though I know it's just 1/100th off.

205/40/R17 Bridgestone Potenza RE760 sports on the stock '05 MSM Racingharts (max 50psi). That pressure has seemed to work in the past getting right to the edge of the tread. I never bothered with the super scientific shoe polish method though and just eyeballed the wear marks. I'll have to remember to pack something to mark the tires with.

[Loren]

That's more than close enough to "perfect". You'll never feel a tenth of a degree of caster or camber, or a hundredth of toe. And every one of those numbers changes as soon as you get in the car, change your fuel load, start to turn, hit the brakes, accelerate, etc.

More front camber would be nice, otherwise, looks like a good alignment.

I agree with Steve on tire pressures.

[Lava Speed 05]

He was having issues getting more than the -1.4 camber and maintaining the toe in the rear from what he said. There was room for more neg camber up front, but I wanted to keep that .5 difference from front to back as I keep reading that's the suggested spread to start with.

It's a starting point and for $80 after tax at Sears of all places I can't really complain. The only performance/modified suspension shop in this immediate area was closed and other shops by me didn't even want to be bothered to try since it was outside the factory specs. They also wanted to tell me my Bilsteins were aftermarket and my car was lowered. Definite kudos to the guys at Sears for working with me in a pinch. Unfortunately Sears doesn't allow their customers to sit in the car while the alignment is being done, but understandable for a large corporation that it's into doing this stuff on a regular basis.

[Loren]

Definitely a good place to start with a Miata. See how you like it, live with it for a while, then you'll know where you need to go with it next time. Driving style is a factor, so nobody can really tell you what "your" perfect alignment is.

[Lava Speed 05]

Thanks for the feedback guys. I'll see you both in the morning. Now it's time to start packing for my flight to Honolulu early Sunday morning. Autocrossing on Saturday and Honolulu on Sunday will definitely make for a great but tiring weekend.