TEAM COTTON'S PERFORMANCE TURBO BUICK ONLINE FORUMS

TEAM COTTON'S PERFORMANCE TURBO BUICK ONLINE FORUMS (http://community.cottonsperformance.viper05.citasystems.net/forum/index.php)

- Ask Jack (http://community.cottonsperformance.viper05.citasystems.net/forum/forumdisplay.php?f=17)

- - Front tires (http://community.cottonsperformance.viper05.citasystems.net/forum/showthread.php?t=1272)

OK, OK, I know I killed you on the phone today...;) As I was looking over the car on the lift I noticed the front tires are pretty dry rotted and they need to be replaced. They are Dunlop 165 15 86s sp20 A/S metric's. Now I did a little homework and they are rated to 114 mph...Yikes!:eek: Now if I have 28x 10.5 15's in the rear, should I be putting say a 27 x 4.5 M/T's ET Front up front? I think the 165 15 tire was @ 25.4" tall. Should the front tire be close to the height of the rear tire for drag race purposes?

Mike, I've been using some P215-75-15 radials in front for a long time with some rear slicks about the same size you have (Phoenix 10.5 x 28.5).
Hope this helps...

Claude. ;)

Quote:

Originally Posted by toofastforyou (Post 5514)

Mike, I've been using some P215-75-15 radials in front for a long time with some rear slicks about the same size you have (Phoenix 10.5 x 28.5).
Hope this helps...

Claude. ;)

Thanks for the reply Claude. 215-75-15's are @ 27.7" high, so about a inch difference from front to rear... I am just thinking the shorter the front tire the more distance the front end has to travel on a launch. The way it is now I have 25.4" tall tires in the front. So that is an additional 2.1" my front end has to come up as opposed to the 27.5" high ones....kinda makes sense right?

Now I am going to highjack my own thread..:D Your 215-75-15's are about 27lbs each. Going to a set of skinnies in the front would lighten your front end up some. You would drop about 28lbs off the front end buy switching to the M/T ET front's (@ 13 lbs). Then the narrower rims you would need to fit those tires would lighten it up even more! I know, all it takes is money;) And I'm not sure you want that route because you still do a fair amount of street/highway driving, right?

All I can say is ..... get rid of the car tires.. definitely purchase the race tires up front. Car tires with 100mph speed ratings are dangerous. Also, street tires will carry the water out of the water box... :)

Quote:

Originally Posted by JCotton1 (Post 5516)

OK, I'll go with the 27.5 4.5 15's M/T's ET Fronts. Thanks.:cool:

Mike, don't forget that a larger diameter tire will increase ''roll-out'', enabling you to cut better lights than smaller diameter ones as it take them more time to leave the staging beam...Does that make sense too? That was an popular trick back my NHRA Super Stock years...:rolleyes:

Claude. :)