HP:tire width

coronet340 · Jun 24, 2014

I tried searching around and the info is overwhelming and contradictory to say the least.

I'm looking at some 17x9 rims. I would like to run at least a 275 maybe a 285 with a 60 or 65 sidewall. Radials since this will be a mostly street car i.e. 90% street. (let me know if these sizes are off base)

I plan on doing the full US Car Tool B body stiffening and probably the CalTracs on my 67 hardtop.

Realistically how much horsepower/torque could I put to the rear wheels without having major wheel spin. I would plan on deflating a bit if/when I go to the track.

Thanks. Just don't want to order wheels and find out the hard way.

Hemi Rebel · Jun 24, 2014

6 foot side wall. That a tall freaking tire. Hehehe. I know what you mean. A 285/60r17 sounds like a truck or suv tire size. You need to go to something like a 315/40r17

coronet340 · Jun 24, 2014

Lol. Fixed it. A 315 would have a lot of meat sticking out wouldn't it?

Hemi Rebel · Jun 24, 2014

http://s566.photobucket.com/user/jhowdle/media/1971 SuperBee/0803.jpg.html

Have you measured it? Might need to pull back to a 295. Check this

coronet340 · Jun 24, 2014

No I haven't ordered them yet. I don't want to get a 9" rim and find out after that I can only have a 450hp motor or they will just spin. That 295 look just right though.

Hemi Rebel · Jun 24, 2014

Depends on the tire, a sticky one with the cal tracs might surprise you. How much power are you trying to make?

coronet340 · Jun 24, 2014

Orginally was aiming for 500 with the 340. But now y'all are really making me consider either a 400 or 440 stroked out to a 512. So about 650ish.

coronet340 · Jun 25, 2014

Any other opinions?

Jim Bob The Dancing Bear · Jun 25, 2014

Traction depends on a lot more than tire width. Your suspension, driver, and how hard you hit the tire with power all plays a role.

coronet340 · Jun 25, 2014

Jim Bob The Dancing Bear said:
Traction depends on a lot more than tire width. Your suspension, driver, and how hard you hit the tire with power all plays a role.

Good point. Good upgrades on the suspension without spending a fortune. Good driver and a not stomping on it.

HP:tire width

coronet340

Well-Known Member

Hemi Rebel

Well-Known Member

coronet340

Well-Known Member

Hemi Rebel

Well-Known Member

coronet340

Well-Known Member

Hemi Rebel

Well-Known Member

coronet340

Well-Known Member

coronet340

Well-Known Member

Jim Bob The Dancing Bear

Well-Known Member

coronet340

Well-Known Member

Similar threads