69 Charger on the autocross

[j-c-c-62]

I think some shared expectations here are unrealistic with heavy cars, 50+ sidewalls grippy tires and any pressure under 35Psi.
It's hard to have 70's looks and 2020 performance.

 

[Rusty knuckles]

I think some shared expectations here are unrealistic with heavy cars, 50+ sidewalls grippy tires and any pressure under 35Psi.
It's hard to have 70's looks and 2020 performance.

1000%

I'm trying to get the most i can out of a true to form muscle car. The whole idea is you don't need to spend $20k on a bunch of sales pitches from XYZ company selling the latest "geometry correcting" doo-dad and performance enhancement.

I keep saying, these cars don't handle bad as reputations suggest. They just feel different. My hellcat corners flatter and accelerates faster than my charger. But it understeers terribly and the stopwatch says at best it's equivalent to the charger.

 

[Kern Dog]

yeah, I'm running 275/60/15 Nitto 555R's on the rear of my car and 215/70/15 Mickey Thompson Sportsman S/T's on the front. I think I want to put same size tires on all 4 corners for better balance and have thought of using the Nitto 555R2's since I want to keep 15" tires.

The regular 555R have a softer sidewall even when aired up to 28psi and I can feel a little shift at the start of a hard turn before they settle.
I thought I had heard the 555R2's have a stiffer sidewall, is that correct? Do the 555R2's let you feel sidewall shift when turning or do they feel like a normal radial tire and what psi do you run them at?

I wish it was possible to have a sticky tire with sharp steering response that also holds grip in a turn that also comes in 15" diameter.

I think some shared expectations here are unrealistic with heavy cars, 50+ sidewalls grippy tires and any pressure under 35Psi.
It's hard to have 70's looks and 2020 performance.

Absolutely.
To get sharp steering response from a 15 inch tire, you'd need a 50 series or shorter.
Dwayne's car looks great:

But it will not steer as sharp as it would with a 17" wheel and a 40 series tire. Taller sidewalls simply have more mass to flex.
You choose to either have a traditional drag race look and what goes with it or change to a bigger wheel and shorter sidewall for faster response.
I understand why many guys stick with the 15" wheel....They are a natural look for the classic car. I'm not a fan of razor thin sidewalls either.