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san rensho · 07-12-2011, 05:58 PM

Why does Porsche recommend 7 pounds difference in tire pressure front to rear?

I've only had my car a couple of months and just recently statrted to push it in the corners. On 60-70 mph sweepers I noticed pronounced lift throttle oversteer. I said to myself, this is a Boxster, the mid engine should make the car very balanced and all, but it felt like an air cooled 911 when I got off the gas in corners.

So I put 4 more PSI in the fronts and it felt better. Then I went to 36 front and rear and now it feels great.

Is there a reason for 29 front/36 rear?

07-12-2011, 05:58 PM	#1
san rensho Registered User Join Date: May 2011 Location: Miami florida Posts: 1,591	Tire pressure Why does Porsche recommend 7 pounds difference in tire pressure front to rear? I've only had my car a couple of months and just recently statrted to push it in the corners. On 60-70 mph sweepers I noticed pronounced lift throttle oversteer. I said to myself, this is a Boxster, the mid engine should make the car very balanced and all, but it felt like an air cooled 911 when I got off the gas in corners. So I put 4 more PSI in the fronts and it felt better. Then I went to 36 front and rear and now it feels great. Is there a reason for 29 front/36 rear? __________________ Current car 2000 Boxster 2.7l red/black Previous cars 1973 Opel Manta 1969(?) Fiat 850 Convertible 1979 Lancia Beta Coupe 1981 Alfa Romeo GTV 6 1985 Alfa Romeo Graduate 1985 Porsche 944 1989 Porsche 944 1981 Triumph TR7 1989 (?) Alfa Romeo Milano 1993 Saab 9000