Re: Zerotohundred TimeToAttack Round 2
Slicks worth around 9-10 seconds vs street tires. But given that the Kazama car has gone multiple 28s on semi with supposedly 320hp, and a quick but very rough driver... 26s on semis is possible since power is not maxed out, there's some in driver still.
The other things about open trackdays vs TAs or some other forms of racing, is that there are no rules. Some races have rules, but no rule enforcement and that is worse than having no rules. Lower levels of scrutiny also mean times like the 2:23 transponded time by street legal street tired s2000 at the last time attack might also be accepted as being real when it was not. There's nothing quite like datalog and transponder matching up, plus video, and a declaration within the same session at the track. No looping pit building or T6 return either..
Beyond make and model of car, power, drive system, there are a few factors that are major influences on laptime that people very often neglect: gearing, weight, being the top.
If you have twice the power, twice the crank torque, but gearing twice as tall, you have no advantage except for saved shift time. Even in the case of gear overlap you will still have an advantage much below 2x in terms of accel.
That's what many don't realize about euro cars and big power numbers.. they are geared much taller and are heavier, all of which hurts lap time.
if you have full information on a car, the times never are amazing.. it's all physics once driver is ballpark. Drivers usually are +/- 0.2% (low performance road car) to 0.6% (top formula) of a laptime if they're good.
So even a relatively low powered Japanese car cutting a good time is not surprising because it is low weight, very short geared, high grip, good yaw accel.
Exotics they have power, low aero drag, good engine placement for yaw accel, wide tires, some cases AWD. But hurting them is tall gearing, high weight.
GTRs, have power, short gearing, wide tires, AWD . But hurting them is very high weight, poor yaw accel, and larger frontal area vs exotics.
