I tried the 325/50/15 ET Street R Radial on my ZL1 with Beadlocks.All,
Now available on the website....
The rollout was 3/4" different left to right.
I stretched one as much as I could to get them within 1/2".
Took 2 tries to get them balanced (Couldn't do it dynamically but got a static balance with 250+G on one tire and 30g on the other.
They bounced horribly at speed at any tire pressure and the 60 foot was inconsistent between 1.43-1.51.
I tried every pressure from 20-14 and ended up sticking with 15 psi and burned them down. (40 passes with huge burnouts)
Switched to the 315/60/15 Radial Pro and both were within 1/8th inch of rollout and took 35g and 45g to dynamically balance.
Car is smooth as glass at 130+ mph and has no more left to right pulling under power like the ET Street R's did.
Likes 18 psi and short burnouts.
I was not impressed with the ET Street R and would go with an S/S or the Radial Pro again.
Radial Pro 315/60/15