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kcl98 · 06-03-2013

BTW - the peak (lowest) density altitude for the day was 323 ft above sea-level - very good for the most part. It is about the same DA as a day in October 2011 when I was at US41 and ran my best numbers of 10.44 @ 133.0mph. Trying to compare apples to apples, if the car ran 159 in the 1/2 and 133 in the 1/4, it looks like I pick up about 26mph "on the big end" of the 1/2. Pete is about the same with a 154 off of a 129 in the 1/4. Perhaps big inch 6-speeds like Bob and Al might pick up a bit more than 26 from closer ratio gearing, maybe they could gain 27-30mph off their best 1/4 trap speeds. I'd lean towards the high end of that range because I think the quartering head wind that we had probably cost me 160+ as opposed to if we had a no wind yesterday. These guys might've popped a 165 if all went well.

KC

06-03-2013	#27
kcl98 Join Date: Oct 2007 Location: Chicago Posts: 45	Re: Wanna Go Fast Day 1 BTW - the peak (lowest) density altitude for the day was 323 ft above sea-level - very good for the most part. It is about the same DA as a day in October 2011 when I was at US41 and ran my best numbers of 10.44 @ 133.0mph. Trying to compare apples to apples, if the car ran 159 in the 1/2 and 133 in the 1/4, it looks like I pick up about 26mph "on the big end" of the 1/2. Pete is about the same with a 154 off of a 129 in the 1/4. Perhaps big inch 6-speeds like Bob and Al might pick up a bit more than 26 from closer ratio gearing, maybe they could gain 27-30mph off their best 1/4 trap speeds. I'd lean towards the high end of that range because I think the quartering head wind that we had probably cost me 160+ as opposed to if we had a no wind yesterday. These guys might've popped a 165 if all went well. KC