simmode1 wrote:
I agree with all of this. There are 500hp time attack Silvia's doing just fine with 255 tires. You need a stickier compound, not wider rubber, op.
Agreed... and to support it here an excerpt from this article:
http://www.hotrod.com/techarti....html
"Want to see big improvements? Change the tire compound. My friend Dave bought some BFG Drag Radials for his 5.0L Mustang. His 225mm street tires spin at .59g every time, yet his 235mm Drag Radials consistently pulled .68g. That's 15 percent! A co-worker brought in his NSX with 245mm race tires, and thanks to the combined help of its mid-engine layout, we were measuring .75 g launches, over and over again! I'm not saying that wider tires would hurt, I'm just arguing that they're far more for show than go. They wouldn't double the traction. Or add 50 percent, or even 25 percent. The max we're talking is probably under 10 percent. So without tubbing the car, I can probably squeak in some 245mm tires if I had to. By trying to play the testosterone factor low on this car, my best money will go towards a set of drag radials, and selectively moving weight to the rear, not tubbing the car and running 315mm street tires."
Width will help more with cornering than accel... and will cause more understeer if you are going wider in the rear with no other adjuments...
Modified by rbsileighty at 3:14 PM 4/23/2009