Senior Tech Team
Join Date: Feb 2013
Location: Lloydminster, Alberta
Help with drag tire choice
I have a 71 Nova which is street driven, with a MJ 467, which made 630/600 on his dyno. TH400 with Mark spec'd tight ATI 2500 convertor, 8.5 with 3.42 gears. Cal tracs with 2" drop split monos, double adjustable Vari shocks front and rear. The suspension is also for handling, with front and rear Hellwig bars, SPC 2" drop springs in front and Upper/lower SPC arms. I weighed the car at the gov't scales the way I drive it on the street. It weighs 3660lbs with me in it. 56.6%/43.4% F/R.
I am looking at changing my wheels/tires for at the track only, from the 17" torque thrust I have now. I have 245/45-17 front, and rear, Hoosier DOT drag radial on the back. My best 60' so far is 1.844.
I am looking at the Race Star 92 Drag Star Bracket racer wheels, 15x8 for the rear, and 17x4.5 for the front (I have Baer 13" discs on the front, requiring 17" wheels).
I was thinking of the Moroso 17029 front drag tires, as I want to keep the 26" tire, and they say they fit on a 4.5" wheel.
For the rear, should I stay with a 26" tire to keep my gear ratio lower? Or will a 28" tire be that much better for off the line that it will offset the taller over all gear ratio?
The track I race at is not very consistent for traction, and it is all bracket racing. Based on that, what tire should I look at? I was thinking of the MT Pro Bracket Radial in 26/8.5-15, or the Hoosier stiff sidewall slick in 26/8.5-15.
Help me out, because with the poor CDN dollar, I would rather make the best choice the first time!