2011 ahfs

[Bob Mulry]

As I look into my crystal ball, I can see the future.....

It's Boise or Tucson with a sea level weather condition like we had a few years ago and guess what......

10 or 20 combos get HP on Tuesday and have to live with it when you are in Div 3 or 4 at sea level in August with a 28.50 baro.......

You wanted AHFS at the altitude tracks and now you have to live with the results...
...

[Alan Roehrich]

I notice there is nothing in that draft to address the weather conditions. If NHRA does nothing to address the problem of weather conditions skewing the AHFS, the AHFS will remain broken, and the racers will continue to be screwed by it.

It's been said repeatedly for years, in order to work properly and fairly, the AHFS system MUST correct ALL data to an SAE standard sea level day. Each Division must have its own regularly calibrated weather station, to be used at the track before and after every session, or the data collected is skewed and worthless.

If the average racer can afford a weather station, then NHRA can afford to buy 7 nice ones for their staff, keep them correctly calibrated, and have someone on the starting line record a weather reading before and after each session.

[Angelo DiTocco]

Originally Posted by Alan Roehrich

I notice there is nothing in that draft to address the weather conditions. If NHRA does nothing to address the problem of weather conditions skewing the AHFS, the AHFS will remain broken, and the racers will continue to be screwed by it.

It's been said repeatedly for years, in order to work properly and fairly, the AHFS system MUST correct ALL data to an SAE standard sea level day. Each Division must have its own regularly calibrated weather station, to be used at the track before and after every session, or the data collected is skewed and worthless.

If the average racer can afford a weather station, then NHRA can afford to buy 7 nice ones for their staff, keep them correctly calibrated, and have someone on the starting line record a weather reading before and after each session.

Good Luck with that - I suggested that 10 years ago when all of this started & nobody listened

[X-TECH MAN]

Originally Posted by Alan Roehrich

I notice there is nothing in that draft to address the weather conditions. If NHRA does nothing to address the problem of weather conditions skewing the AHFS, the AHFS will remain broken, and the racers will continue to be screwed by it.

It's been said repeatedly for years, in order to work properly and fairly, the AHFS system MUST correct ALL data to an SAE standard sea level day. Each Division must have its own regularly calibrated weather station, to be used at the track before and after every session, or the data collected is skewed and worthless.

If the average racer can afford a weather station, then NHRA can afford to buy 7 nice ones for their staff, keep them correctly calibrated, and have someone on the starting line record a weather reading before and after each session.

They would not have the weather stations unless someone GAVE them to NHRA and then its to much work for them to use and keep track of data. Can you just see Rick Stewart trying to use one at a National event.....LOL. He dosent like the sporstman racers anyway. They just "MUCK" up "HIS" starting line.

[Ed Wright]

Guess I didn't read close enough. I assumed they meant uncorrected times at altitude tracks. Too many bogus corrected records on the books. We don't need hp factors based on an altitude corrected et. I've run quicker uncorrected at Amarillo Texas (3800') in great weather than I could at Tulsa which is 670'. Hope they don't use corrected times. You can tell they have worked hard on this. I appreciate it.

[Mike Carr]

In regards to altitude tracks now being included, does the -1.200 under mean -1.200 under the sea level or factored Index?

My class, DF/S. 15.60 sea level Index. 15.99 at Las Vegas. At Vegas, would I have to run 14.400 or 14.790 to get hit?

[Dave Casey]

Alan, your thoughts on the weather issue have merit, but they need to keep it simple, adjusting for weather has so many variables and extra work involved that it ain't happening. You are beating a dead horse on that issue. good and bad weather happens at all altitudes and tracks over time it evens out. And yes I have been bitten by it and got hp and I am dealing with it.

I think this is a step in the right direction generally. The biggest moves are that all the lodrs runs count and I think what I am seeing is that runs at altitude count using the altitude index. All good in my book.

I am unsure how this affects hp on stick cars, just trying to decipher it. I think that in many cases the stick combo will get hit also, and I agree with that.

Mike, Thanks for your post and hard work on this.

[Ed Wright]

Mike I appreciate you giving us a look at the preliminary version.

Thanks

[Toby Lang]

Originally Posted by Mike Carr

In regards to altitude tracks now being included, does the -1.200 under mean -1.200 under the sea level or factored Index?

My class, DF/S. 15.60 sea level Index. 15.99 at Las Vegas. At Vegas, would I have to run 14.400 or 14.790 to get hit?

I would say it'll be whatever it reads on your time slip. Just like Comp. So a 14.79 at Vegas would get you an automatic hit. They already tried to give HP at factored tracks this year. You're right though, it probably does need some clarification.

I heard they are going to redo the altitude factors to make them closer to sea level, but I also heard they were going to set the automatic hit at .85 under.


-Toby

[Toby Lang]

Mark,

The new AHFS didn't change that much. They really only changed the automatic hit from 1.25 to 1.20 under. They also added the sliding scale for runs more than 1.25 under to bring an out of whack combo in line faster.

The trigger for review stayed at 1.00 under just like last season. That's 1.3 under the old index. The trigger used to be 1.15 under the old index which is .85 under the new index.

So the trigger is .15 softer and the automatic HP hit is .10 softer than it used to be.


-Toby