Tire size versus ET's street radials

I have ran a best of 13.2 @ 105mph on stock E70-14s repop redlines.

I have only made 6 passes on the E70-14s with the air pressure set to factory spec….. With some more launch practice and air adjustment I think I could see 12s.

This is in full street trim including hub caps and a full tank of gas.

(full street trim includes all factory unmodified interior and exterior equipment in place)

My suspension mods are….

XHD replacement rear springs
Subframe connectors
Run of the mill stock replacement gas shocks


On a side note….. The same drive train in race trim ran an 11.78 @ 118mph.

(Race trim was when it had electric fans and water pump, headers, 3” exhaust, battery in the trunk, SS springs, drag shocks and slicks)