Originally Posted by 69ACME
I would love to hear an explanation as to how putting a front tire (radial) that tracks straighter going to make a car more unstable because it has a bias ply on the back. I can see why a rear radial/front bias isn't a good match. But the conventional wisdom of never mix radials with bias never seems to come with any evidence or explanation.


I did this once before on one of my street cars.....Spun it 720 after hitting one of those rubber bridge gap things as the radials and bias tires do not react the same to side loads, and they made the car unstable at thruway speeds. This was back in 1988 on my 73 Cuda...

So I am leery of doing this on my prostreet car, but I think they will improve how it drives.

Last edited by Dragula; 09/01/21 09:00 AM.

'70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft)
https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car)
https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car)
https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9)

'66 Barracuda AWB Stretched nose Blown 440 Car in build stage

'71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph
https://www.youtube.com/watch?v=Znuo3jMUXTk