this is for airbus your statement in the performance thread is when you weave a story and sell it on your experience and occupation as the truth, i have to reply to your misinformation, i have seen those same 30.50+ barometric pressure readings in california new york maryland texas florida all over and i dont fly

this is a weather report showing barometric pressure in texas around
oct 27 2008 BP 30.70 breaking the record of 30.69 made on oct 27 1957. so i am sure there are plenty of barometric pressures higher then the northeast, the highest ever recorded was 32.01






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--------------------------------------------------------------------------------

Weekly weather and crop bulletin
By National Agricultural Statistics Service - USDA
Nov 5, 2008

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National Weather Summary: October 26 - November 1, 2008

Highlights: Increasing Western storminess brought much-needed rain and high-elevation snow to much of California and the Intermountain region.

California recently completed its driest 2-year period since October 1, 1975, to September 30, 1977, but weekly precipitation totals topped 4 inches in parts of the northern Sierra Nevada. Western topsoil moisture improvements were especially beneficial for emerging winter grains and drought-stressed pastures and rangeland. Prior to the arrival of a series of Pacific storms,
warm, dry weather spread from the West to the Plains. Weekly temperatures averaged at least 10 degrees F above normal in much of the Great Basin, the Intermountain West, and the Desert Southwest. In contrast, cold air settled across the South, East, and Midwest.

Temperatures generally ranged from 5 to 10 degrees F below normal in the Southeast. By week's end, however, warmer-than-normal conditions expanded to cover most of the nation. Meanwhile on the Plains, warmer weather and abundant soil moisture reserves promoted rapid winter wheat growth. On the central and southern Plains, dry weather and a warming trend promoting the maturation and harvesting of late-developing summer crops, such as cotton and sorghum.

Farther east, Midwestern fieldwork advanced with few delays, despite an early-week chill and snow showers downwind of the Great Lakes. Fieldwork continued to shift from soybean to corn acreage as the soybean harvest neared completion. In the eastern Corn Belt, dryness remained a concern with respect to winter wheat establishment.

In contrast, an early-season winter storm brought significant rain and snow to the Northeast on October 28-29. In the storm's wake, Southeastern freezes on October 29-30 ended the growing season as far south as northern Florida. On October 29, monthly record lows were broken in Florida locations such as Tallahassee (29 degrees F) and Jacksonville (33 degrees F). Despite the chill, harvest activities for crops such as cotton, peanuts, and soybeans rapidly advanced.

Early in the week, high winds swept across the Plains and the Midwest. On October 26, gusts were clocked to 66 m.p.h. in Pierre, SD; 64 m.p.h. in Valentine, NE; and 62 m.p.h. in Mason City, IA. Light snow across the northern Plains and the Great Lakes region resulted in daily-record totals in locations such as Fargo, ND (1.4 inches on October 26), and Rhinelander, WI (2.0 inches on October 27). Meanwhile, heavy precipitation lingered in Maine, where daily-record rainfall totals for October 26 included 2.40 inches in Millinocket and 2.12 inches in Caribou. Farther west, a strong high-pressure system settled across the South, where Dallas-Ft. Worth, TX, set a monthly barometric pressure record (30.70 inches of mercury on October 27;
previously, 30.69 inches on October 27, 1957).

 

What's "b.s."? That I've never seen 30.60 in/hg? Or that the NE corridor doesn't get high pressure?

Give me specific dates where you have seen 30.50 in/hg readings in the other locations you mention. Should be easy to do since you've seen it.

Are you denying the there is routine negative DA in the NE? Keep in mind that DA is a combination of multiple factors, but baro pressure is a major one. Just want to make sure I understand what you are rambling about.

I think it's funny a couple are getting so butt hurt because their fragile egos can't withstand some factual information that suggests that their well above average race times have been greatly helped by fantastic negative DA. Do you seriously believe that it's just a coincidence that the fastest times are nearly always set in the same general location? And do you honestly believe that the best drivers and tuners happen to live in the same general area?

 

I have seen 30.40 - 30.50 at my track and thats www.nyirp.com

And please don`t ask me to give you the date....

 

Dennis posted this off of a news paper...Read the heading and the date is also there too.

 

yes the fact you never seen bp over that being a pilot. yet i have because i check everytime someone post a time. if you want to find them check yourself i just showed you 1 there are plenty more, and also cold weather.



I've never seen a baro pressure of 30.60 hg and I fly everywhere, yet in ATCO just two weeks ago you guys had it. Which is why I stated earlier that abnormally high pressure can dominate the NE corridor. Whether or not ATCO raceway is magically quicker for some other reason I don't know, never been there, but denying the incredible weather there as being only a minor factor is pure b.s. and you know it. And if you believe that all the records are being set in that area of the country because you guys are just better drivers and tuners is, well, just funny. lol I don't care what forum you are on, dodge, gto, sti, evo, etc., the quickest and fastest times occur in the same place and it's because of the weather.

 

I have scene people say stuff about Atco or the northeast in general, how the cars cant run those numbers elsewhere etc. Yet every car in this area runs those same times when we pack up and go to the Corvette nationals etc, and I'm not talking about just our cars, but all the major shops in this area.

The fact of the matter is that we sponsor the largest race series at English town's Race way park, which is the East Coast Supercharging Corvette challenge. Cartek sponsors the pro 10.0, V.D's sponsors the pro 11.50 and we have the largest group of racers in the country coming to these events.

The competition is intense at times, and I can assure you that "good enough" simply doesn't cut it around here. The cars run the times they do because of the amount of local competition, and dedication of the people racing them.

I have personally broke P.B.'s in S. Carolina, Virginia and so on. The cars can run the numbers elsewhere without a problem. Do I watch the barometer if I'm looking to break a record or personal best? Sure, that's part of fine tuning a car, but in general you go when you can and you get what you get.

just my .2, I'm not bashing anyone here.

 

Hey, you claimed that YOU have seen it, so I assumed that meant you. And, no I don't recall setting the altimeter for 30.60 in/hg. That doesn't mean it can't happen in some places, it just means it quite rare in most places.

And I justed checked ATCO and right at this moment the DA is negative 1452 ft. That's a big negative. IN PHX right now the DA is +2947 ft. Quite a difference. And that's despite the baro pressure being a little higher in PHX today. Baro pressure, temp, field elevation and to a lessor extent, relative humidity all play an important role in calculating DA.

What we're really talking about here is density altitude and it's effect on performance. IT's a big player. Why do you NHRA correction factors are for? If you get to race in negative DA on a regular basis, fantastic.

Sorry to burst your bubble man, it doesn't mean you don't have a fast car. But there are alot of fast cars that would run just as well in the same weather/track.

Anyone that claims they can run the same times in different (worse) weather is not being honest. (Forced induction cars aren't affected to the degree as n/a cars are because they make their own atmosphere).

 

i never said you can run faster or the same in worse weather, the question was some place else you asked and of course you can run better some place else, everybody has good air at a certain time of the year, we have our +3000 da days to and at 33 ft you implied 30.60 da only happens over the northeast and it happens everywhere. i happen to of ran 10.92 with a BP of 29.56 and if you corrected my time nhra corection it would still be the fastest bolt/on so please stop with the double talk and false statement, and be fore you even say it, no why would i come to your track and race to run a slower time, you come to the northeast and beat me, not somebody else, since you know so much you come do it

 

the competitive spirit and great tuning shops in the northeast make racing great, and that's why are tracks are open so many days and almost all year even in sub freezing temps

 

First, you're getting hung up on the baro pressure. I'm talking DA, baro pressure is a big player and I stand by what I said, it's rare for most places.

And I just checked your record breaking timeslip of 10.92 at 124 mph. Congrats. But according to your posting, it happened on October 23, 2008 at ATCO.

ATCO, NJ weather for October 23, 2008

Baro pressure 30.60 in (not 29.56 in)
Mean temp 45*F
RH 70%
elevation 33 ft

DA for that day was negative 1581 ft. If you ran in the evening, your DA was below 2000 ft.

Your NHRA corrected time falls to a 11.08 at 122 mph. Still outstanding, but your getting some help from good DA.

You can mathematically calculate your power loss at 3.5% for every 1000 ft change in DA (na engines). If you ran your car with me the same night I did just recently in PHX, you'd be running in a positive DA of about 1500 ft. That's a 3000 ft difference. At 3.5% per 1000 you'd experience a 10.5% loss of power. If you ran in the weather I ran in just late last month (about the same time you made your great run at ATCO) the DA that night was about 3300 ft. That's a power loss of 17.5% compared to your ATCO run. If you are making 400 rwhp thats 70hp you just lost in our DA.

So now you know why DA is a big deal. This is factual science, not made up b.s. or theory. I know a little about DA because of not only what I do now, but I cut my teeth on piston powered aircraft and DA wasn't used for bragging rights but something you needed to know in order to avoid death. Talk to the helo guys too, they really freak out on it.

 

AirBusPilot probably understands DA as well as anyone on this forum. There have been a few times the airport has been shut down in Phoenix for safety reasons due to DA in excess of 6000'. That's something that is impossible in NJ. Conversely, I don't remember ever having flight delays due to snow or ice.

As far as racing is concern, the lowest DA at the track so far this year was just before the track closed at midnight in Jan. when it went to 29'. The highest was 5268' at 7:15 PM in June. When the DA is below 2000' it's a good day.

The highest BP all year has been 30.41. We are thrilled when it hits 30.00, which only happens occasionally during the winter. In NJ it's been as high as 31.24 and it even averages over 30.00.

The BP on the east coast is primarily due to the jetstream effect which quite often brings down cooler denser air from Canada and drops it just east of the mountains in the areas next to the ocean.

A study of geography and climate will show this to be accurate.

I went your direction earlier this year and now I left a challenge on the performance thread for any east coast guy to come west. All takers welcome.

 

anything you say doesn't really deserve and answer, you are so full of jealousy that's why you double talk so much, you we rent crying da you cried i never seen 30.60 anywhere and i fly everywhere. first rule to being a liar or double talker is be real be good and don't cover up a lie with more lies. i have an old saying i cant stand a liar who cant lie not saying you are but when doing so don't get caught in your lie be convincing
OK now first thing an online calculator really doesn't give the actual at track side it could be off by 1000 ft depending on cloud cover. it could be 50 degrees outside but in pure sunshine at the track with a big asphalt surface pit area no wind the temp at track level could be 75-90 who knows but the track side at track starting line surface portable weather station knows. also that was my 10.91 date oct 23 2008. do some more research and you will see the 10.92 at 123 mph was like i said and its been posted in the drag racing section by the people with the weather stations and Tommyd took the video and posted it.
so leave the drag racing to people who know, and i wont be flying with people like you that's why i don't fly
and we use 3% hp per 1000 ft DA, so the main question is you can calculate and use corrections all you want, but can you drive your car that faster time at atco with that extra power as corrections don't calculate for traction

 

and i know all about da, i know i might run a 10.60 in a negative 1470 da if i can hook the car, and also i have ran all summer long running 11.20-11.0s in 3000+ da dead hooking with 30lbs of air in the tires but in the cold i run less too hook, i was able to cut the loss an ad the gains with tire pressure

 

i can say without a doubt that i have never ran in a da of 31.24, i would not want to come to your track for what to run slower because of elevation, i also remember Glenn running at the track with one of his best das ever by a thousand feet and he went slower because of traction. i want to go faster why would i go thousands of miles to go slower, so if you went three 3/10s faster in jersey and i went 3/10s slower out there i would still be the fastest

 

How old are you? The reason I ask is your maturity level displayed by the above post indicates teenage. Calling me a "liar" and "jealous" is just more proof. And your poor grammar isn't helping me understand what you are trying to say, but it is making you look like a dumbass. Oh, I'm not calling you a dumbass but...

Honestly, I believed your car was capable of those times at the level of modifications you claim, now I have my doubts and call b.s. on your mods, you just aren't that smart to pull it off, IMO, without cheating or paying someone to do them for you. You seem overly concerned about me explaining DA and it's effect and how it might take away from your "accomplishment" (which wasn't my intent, you interjected yourself into another thread where I was discussing it) And, no, I'm not that interested to pay to have your car torn down to find out.

Sorry if mathematics puzzles you to the point of sounding like fancy "double talk", but physics don't lie. But, like you said, liars do.

Oh, and don't worry, you shouldn't fly. Too much going on and all that fancy "double talk" we use to fly might frighten you.

 

thats cool believe what you want, i dont care what you believe, i was inteligent enough to find the way to the end of the 1/4 mile in 10 seconds. when you can tell us about it

 

I've had two vehicles that ran in the 10's. The last one was a 4100lb 2005 GTO (10.89 at 133 mph). 245 Nittos wouldn't allow much of a launch, and it'd lose traction at the 1000 ft mark if I upped the boost above 12 psi. Glad you found your way to the end of the 1/4 mile, kind of hard to get lost though.

Seriously, I'm just giving factual info and my opinion attached to it in the above posts concerning DA, no need to lose any sleep over it and get all bent out of shape.

 

You do relise that BP changes throughout the day right?

I minute you could have a 30.33 and then it drops to a 30.25. Just because you see a certian bp doesn`t mean that it didn`t change in say an hour.

When you look at a timeslip for da, you need to look at what time it was ran and then find out what the da was for the pass. There are websites that give you bp on the hour.

Now, i would like to see how close you come with my da.

I ran on october 4th, my slip says october 5th and i have video`s of all my passes so there is no problem with my honesty. My track has never fixed the date issue but the times that i ran my passes are right on my slips. Can you tell me what my da was and my correction for my best pass of 11.13@125.03mph?

Track elevation is 918ft.....Have at it....

 

Believe it or not, I would need your location to even start a calculation. Just because you were at 918 ft on the 5th of October means little. You do realize that, right? Secondly, why would you want me to calculate something for you? Do you lack math skills or are you just too lazy to do a calculator search? And unless you are racing during a thunderstorm or a passing front, DA isn't going to change significantly run to run. Oh, in case you haven't figured it out yet, BP is just one factor in calculating DA.

 

Your not very bright, are you?

If you look at my first post in this thread, i gave you the link to my track. In that link, the address/zip code is in there.

It was october 4th so i take it you have a hard time reading also.

I asked for you to do the correction because i was going to post the correct correction. Just wanted to see how well YOUR math skills were.

I know BP and DA very well, as i like to drag race and most smart drag racers follow weather(BP/DA). But you probably wouldn`t know much about that.

Anyways, don`t bother, i won`t waste my time on someone like you.