Tire Pressures ??
Posted: Tue Aug 09, 2016 9:48 pm
Experts, please enlighten the rest of us. Watching NASCAR, for example, they talk about making half pound or such adjustments to cure all sorts of oversteer, understeer and other handling problems. 1/2 pound. Honestly, gimme a break. Question: just what air gauges are they using??
In front of me on my desk are 3 air gauges: 1) a Porsche Classic pocket gauge with Porsche logo leather pouch; 2) a Longacre "Racing Tire Gauge" unit, and 3) a PSIDOPS "XPRS" (http://www.equal-air.com) unit that allows adding air while checking TPs. Cool: the gauge face lights up when in use. And next: there are the in-car measurements of our Carrera GTS and Macan S....
None of these gauges give the same reading, at the same time. Even my pencil stick gauges give different numbers. Same. None.
SSSo:
Just what units do the NASCAR (and other high end racing series) use to measure and adjust to such as: 1/2 pound per adjustment?
In front of me on my desk are 3 air gauges: 1) a Porsche Classic pocket gauge with Porsche logo leather pouch; 2) a Longacre "Racing Tire Gauge" unit, and 3) a PSIDOPS "XPRS" (http://www.equal-air.com) unit that allows adding air while checking TPs. Cool: the gauge face lights up when in use. And next: there are the in-car measurements of our Carrera GTS and Macan S....
None of these gauges give the same reading, at the same time. Even my pencil stick gauges give different numbers. Same. None.
SSSo:
Just what units do the NASCAR (and other high end racing series) use to measure and adjust to such as: 1/2 pound per adjustment?