mikefili

What is a good cold pressure for track use, I used 32Front 30Rear last outing, hot got up to 38 front. thinking of trying a higher cold pressure,
anyone have experience with the R compound Toyo's?

FredSM

There were a lot of threads some months back. My own experience is they like a LOT of pressure. They were still sticky when the DIC was complaining.

FM

oldmansan

That seems to be the general consensus. I haven't tracked mine but run the cold pressure at 32 or higher.

San

Last C5

I ran about 46 hot (36-7 cold) all last year. I wore the tires out after about 17 days on the track, but they wore evenly to the end.

longdaddy

cold pressure is not a great benchmark, more of a starting point as your driving style and track/weather conditions can introduce a lot of variation.

i ended up keeping mine at about 40 hot (c5z). they wore fine but the fronts heat cycled out to the point where the car started having a lot of understeer after 6-7 events to the point where it became too slow to continue using them so I threw them out with a fair amount of material left.

i went back to NT01s as they are a little easier to manage in terms of pressures and wear and seem to stay more consistent as they accumulate heat cycles.

yakisoba

I kept mine at ambient, since I drove on them as little as possible. Get some better tires man.

Sorry, cheap shot. Higher was better when I ran them, 32 cold was what I think I ran.

gkmccready

http://forum.specmiata.com/cgi-bin/u.../5.html#000214

Remember that the alignment/rake/etc they recommend is for a Spec Miata. I got my R888's from Ron@AIM and he told me to end at 40psi hot *minimum* ... I've been starting at 36/34 cold for daily driving, and that's my starting pressure for the first track session of the day, then I just keep an eye on them and aim for 42-45psi hot.

FWIW, I tried running my normal 30/28 or 32/30 on my first set of R888s that came on my CCWs and it was a night & day difference after I talked to Ron@AIM and bumped the pressures...

NemesisC5