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G Schenck · 10-08-2007, 06:33 PM

Starting line beams are suppose to be 5/8 " off the ground. So you need to see how much roll out you have at 5/8 " off the ground for each tire and the difference would be that much more of a rolling start.More rolling start equals lower ET. Then you have front end rising and or wheelees that might make a difference but most cars are moving foward before moving up.

Greg

10-08-2007, 06:33 PM	#5
G Schenck Senior Member Join Date: Mar 2007 Location: Harahan, La. Posts: 521 Likes: 41 Liked 81 Times in 35 Posts	Re: 27" to 28" front tire swap Starting line beams are suppose to be 5/8 " off the ground. So you need to see how much roll out you have at 5/8 " off the ground for each tire and the difference would be that much more of a rolling start.More rolling start equals lower ET. Then you have front end rising and or wheelees that might make a difference but most cars are moving foward before moving up. Greg