K&N Cold Air Intake Follow Up Runs ! Myth debunked !
11-23-16, 09:01 PM
#46
Pole Position
Good to see another racer here !
The numbers I used were taken at the track both times from
a bracket racer I kind of know. You can also get a rough estimate of the
numbers from dragtimes.com but those are not taken at the track. My spread from
my first stock runs to my recent ones was never more than 500. My baselines were no where near 1700 ft as I went late in the evening when it had cooled off. A 500 spread is equal to roughly .10 on a good day on a non forced induction or high powered car as you know. Correct me if my math is off but I checked it a few different ways.
The numbers I used were taken at the track both times from
a bracket racer I kind of know. You can also get a rough estimate of the
numbers from dragtimes.com but those are not taken at the track. My spread from
my first stock runs to my recent ones was never more than 500. My baselines were no where near 1700 ft as I went late in the evening when it had cooled off. A 500 spread is equal to roughly .10 on a good day on a non forced induction or high powered car as you know. Correct me if my math is off but I checked it a few different ways.
I agree that the data taken from DragTimes will vary slightly from the actual data at the track but it won't vary enough to make a meaningful difference in this comparison.
Im not sure what data you are using to calculate DA during your baseline but based on the screenshot above you can see where 1700 came from. Maybe it was 1600 or maybe it was 1800 but bottom line is there was a major difference between these two days.
The DA on the K&N run based on the data you supplied is 99 feet not 698 as you stated in the first post.
I know you understand DA effects so I hope you can see why I came to the conclusion I did. Baseline run = 1700 and K&N run = 100 it all adds up to 3 tenths right?
And s please don't take me wrong. I'm not trying to attack you with sarcastic comments like many are just trying to really understand the data. Sorry it's the OCD in me. I scrutinize my own data even more.
11-23-16, 09:20 PM
#47
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I agree that the data taken from DragTimes will vary slightly from the actual data at the track but it won't vary enough to make a meaningful difference in this comparison.
Im not sure what data you are using to calculate DA during your baseline but based on the screenshot above you can see where 1700 came from. Maybe it was 1600 or maybe it was 1800 but bottom line is there was a major difference between these two days.
The DA on the K&N run based on the data you supplied is 99 feet not 698 as you stated in the first post.
I know you understand DA effects so I hope you can see why I came to the conclusion I did. Baseline run = 1700 and K&N run = 100 it all adds up to 3 tenths right?
And s please don't take me wrong. I'm not trying to attack you with sarcastic comments like many are just trying to really understand the data. Sorry it's the OCD in me. I scrutinize my own data even more.
Last edited by ISFSCOTT; 11-23-16 at 09:28 PM.
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