Is our Bullitt wheels 8.5 in wide like the other 18in wheels?

 

Yup.

 

255s will fit and likely provide a better grip.

 

It isn't about grip, my Bullitt is launching good. but then I haven't done a 3000 rpm dump. I don't have the heart to do it to my car. I get 2nd gear rubber if I want and 2 out of 3 times I get a squeak out of 3rd. I think the reason I get 3rd rubber is that my shifting probably sucks.

 

I disagree. Traction and confidence go hand in hand. It's hard to have fun without either one.

 

Do you have traction issues "1 BULLITT"
I don't have that much power

 

No, it's still on the break in period. I've driven it less than 500 miles.

My comment was based on the assumption that a 255/45 tire being one inch wider than the 235/50 will provide better traction as long as both share the same characteristics.

 

I have 1200 miles on mine and I see no difference in power. I remember that my mustang gt came alive with about 5000 miles on it! I hope I will see the same on my Bullitt!

 

I've had mine at the track. The tires were definitely not grippy at 30 psi. I know, I know. They're all season. 3000 rpm launch with no TC = lots of spin and wheelhop with TC off. One of the other Bullitts was launching at 5k with 18 psi in the tires. Came out of the hole like a rocket. My next set will be at least 255 and a different compound.

 

I hope mine will spin!
I am a show off and my bullitt takes off like a rocket!!!
I know that is what a person wants, but I like to have fun some times. I haven't done a 3k launch yet. I have 1200 miles on the beast now

 

You are past the break in period time to give her a try you will be happy with the results.