Wheel and Tire Questions

[93gtmustang]

I want to change from my Cobra-R's to a Weld Draglite set-up.
15x8 rears, 15x3-1/2" or 4" fronts.
What should the back spacing be?
What's a good tire size for this set-up?
I will be using the fronts for the street and the track. So radials on all four.
I have 4 lug.
Thanks

 

[PUNISHER RACING]

15x3 with a 165r15 on the front and a 15x8 with 5.5 bs on the rear. as far as rear tire sizing that is up to you but i always run a 255/60-15 on a stock spring car if its dropped 2 inches or so a 235 or 245 fills it up good.

 

[93gtmustang]

Thanks.
What's the back spacing on the 15x3-1/2? I saw on Jegs that 1-3/4 is the only b/s.
http://www.jegs.com/i/Weld+Racing/927/90-54030/10002/-1/746346|36673
165r15 for fronts.
I found a 165/80r15 . Does that sound right? http://www.tirerack.com/tires/Spec....&vehicleSearch=false&fromCompare1=yes&place=0
Thanks

 

[PUNISHER RACING]

they refer to them as Volkswagen tires 165r15

 

[dcurtis]

Personally if it is a pure track car I would go with the 15X3.5's but you said it will be a street and track car, so I would not use a 3.5 wheel or a 4 inch wheel, I just put some weld rodlites on my car 15X8 w/5.5 and 15X6 w/3.5bs and for tires I ran a 235-60 in the rear and a 195-65 up front and that is the size I would recommend for you.