Help needed with tire size
#21
I just had four new tires installed on the XK8. As I mentioned due to a wheel change by the previous owner I use 245/45R18 front and 255/45R18 rear. I bought Sumitomo tires as recommended by my dealer. And I have never been happier or seen so much improvement. Had Micheland Sport Flight on before. I immediately noticed a reduced vibration in the steering wheel even thinking back as to the vibration I had when the other tires were almost new. And they were a lot cheaper. It was $550 installed. I probably could have done like Ungn did and ordered them from Tire Rack but I need to support this shop run by friends of mine.
Thanks guys for all the help I received. She rolls real nice now.
Thanks guys for all the help I received. She rolls real nice now.
#22
The Odometer pickup is on the driver's front wheel to measure centerline distance/eliminate wheel spin errors.
I would love to be able to build my own rally computer. The current computers only are only good to 1/20 of a second and the military GPS guys I compete against have boxes that read to the .001 of second.
I would love to be able to build my own rally computer. The current computers only are only good to 1/20 of a second and the military GPS guys I compete against have boxes that read to the .001 of second.
The standard system call on most PC based systems
resolves to 1/18 second. But, there is also the possibilty
of using the high resolution timer. It is a matter of
familiarity.
Reading from both front wheel sensors and integrating
the results could be helpful in correcting for turns and
brake skidding.
It could be done with say a Raspberry Pi or similar
since they have a lot of add-on ports for sensors.
#23
#24
#25
245/45's are the standard size.
#27
Tire size
This combo works for me so far...may go 255 up front if they don't rub. The extra sidewall on the 275s is better in Houston so far. Wider backs make it very very grippy. They barely rubbed the inside arches without the 15mm spacers. Some people hate spacers, but I've seen Formula 1 cars running them. I would still like to drop the back 1/2" or maybe even 1".
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Alan Stoldt
XJ XJ6 / XJR6 ( X300 )
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04-01-2016 02:49 PM
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