Quote:
Are you saying you are losing traction with the old Nittos? That is a fairly big tire already for the HP you are making. What pressure do you run?
Running @ 20# most of the time. 18# was lowest I think.
Nittos are about worn out, and I will need some new tires soon. They may have a little more life in them, but not a whole lot.
As for traction, I have lost a slight amount of traction several times. Each time I felt that I had slipped a little my 60' times backed me up. At Wilkesboro this year I made a bunch of runs and on at least 2 of them my 60' times dropped from a 1.80-1.82 to a 1.85-1.86. I know that is not much but it told me my "feeling" was correct.
I do know, if I don't heat them well, they do not bite. I always thought drag radials were not supposed to be heated quite as much as a slick. Maybe I need could go a little lower on tire pressure? What is the bottom on tire pressure?
One other thing that I am pondering is that the 1st Big bore motor I built had a better 60' time than my current motor with bigger cam, more compression and Jeffrey head? Not sure why. I'd have to look but I think it was around 1.78 60'. This motor has run .4 faster and a couple MPH faster but not 60's
Car has same suspension, transmission and Rear end (4.56) and Carburetion. I am not worried about this just wondering.
Probably will go with the Mickey's! And the bigger tires cost about the same and shouldn't hurt traction.
Thanks,
Rick
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