No SD and no spin. Runs identical. Have the breakdowns and videos to show my car picks up nothing in better air.

So basically you are saying you babble about DA a lot but really do not have much of a clue? I take you BS answer as a lack of knowledge. Thanks anyways. You can continue your DA nonsense now.

 

Lighten up-was just joking...I think

I think that question is best left to your tuner at Cartek? Sounds to me the answer could be something in your tune. I did notice when I went from my track at +800DA and went with the same tune to MIR at -1521 DA, that I got a lot of KR from 2-20mph which I never had before. It definately was due to the lower DA. So your tune can be definately affected by DA. Are you data scanning and logging your runs while making your 1/4 mile runs?

 

you need a choke

 

Never logged a run. But what you are basically saying is that a car is not guaranteed to pick up time in better air. Maybe one day I will log a run and see what is going on.

 

Hmmm...I think in general a C5 or C6 Corvette car should be at least 98% guaranteed to pick up some ET from a +200 to -2000 DA. I am quite sure if somehow you could or someone would log your runs, you no doubt would find at least some answers to that apparent 2% area you seem to be in. I used not to log runs, now I would never leave
home for the strip without my laptop and HP Tuner.

 

I guess the next thing on my list is a laptop.

I hope it can be figured out. I want those 2 tenths.

 

Actually from +200 to -2000 DA you are looking at almost 3 tenths.

 

Now your just making me depressed.

I went 11.24 in +200 w/ 419rwhp and no weight reduction.

Just thinking about what the car "should" have done in good DA makes me mad!

 

At one point it was -1250, no one is denying that, after that it dropped. You do know that a rise in temperature DOES in fact also cause a rise in DA, right?
At no point at that track on that day was it EVER -1800 or -1900 and whatever YOU may say, I'LL never believe it BECAUSE I WAS THERE with three separate handheld weather stations at my disposal.
You don't have to believe me but why are you refusing to believe any of the weather stations we had at the track?
Based on that logic, if our weather stations aren't accurate then neither is yours.





Well our (Bruce GTO ($300.00 unit), Ellis ($700.00 unit), jpee ($450.00 unit) etc.) handheld weather stations do not show the exact same barometer, temps or DA as the online information provides for the very same location so one of them (either the handhelds or online) is clearly inaccurate.
Which do you think is lying, the ones at the actual track where the cars are physically racing or the ones that are gathering info from some general source nearby and conveying those general parameters to 2nd and 3rd party websites?

Perhaps MIR (or your home track) has it's own weather station right at the track where the online sites are getting their info from, hence why your handheld corresponds with it?
Atco is a small backwoods little town and has nothing like that anywhere within many miles of the actual track so any info of that nature obtained online cannot possibly be 100% accurate.
Yes, actual readings at the track can in fact be 1000 feet (usually closer to a 600 foot difference) off of the online sources.

 

Hmm, I guess you haven't heard of No Problem Raceway in LA or even Houston Raceway Park in TX, they see some rediculously LOW DAs during the winter months as well.
They're often blessed with air as good (or better) than the Northeast and they're also still open during those times to boot.
I'm surprised, most REAL drag racers already know this.

 

that is true! cold temps and 30.50+ and low elevation
and its not the da at atco cars run great there year round, its all the fresh air its in the middle of the pine barrens the Wharton state forest surrounded by cranberries and blue berries, no weather stations close. the best thing to do is put a few pine tree air fresheners in your filter

 

Uh, Is that why REAL Drag Racers from Houston want to go to ATCO and not the opposite? How come I never hear of you guys wishing and wanting to go to MIR or Houston or wherever to go find better DA. Duh. ATCO Is The Place To Be For The Lowest DA Almost Everyday!

 

Both MIR and Thompson are in equal to or in far more backwoods locations than Atco. Try checking them out in Google Earth. Neither of them has any weather stations within 20-35 miles of them and yet the Drag Times DA weather calculator is SPOT ON with my $300 Kestrel 4000 mounted on a Tripod at those tracks. Nice try anyways.

 

I don't think many people will agree that online calculators will be as accurate(or will always agree) with the handheld devices at the track.

 

True-But I see a lot of people improperly using hand held devices at the track. If its being held in your pocket and then in your hand and/or around your/others breath-its readings are no good. It really needs to be away from your hands (like on a tripod) and out of the sun. Even better is mounted on a small tripod inside an upside down 5 gallon bucket with the bottom of the bucket cut opened up.

 

True, also away from the heat of the motor/exhaust and sun beating on the car's paint as well.
That's exactly how the veteran racers I hang with at the track use theirs as well.

Though, if you're racing on a sunny day and that sun is beating on the black pavement with the air that enters your motor coming off of that hot pavement, is the weather station's reading that was derived from in the shade truly accurate either?






Is that how your car's air filter receives it's initial blast of air, encapsulated in a bucket like that?
Mine doesn't.
And is this tripod at bumper/air filter height? Any higher or lower and it is, once again, not entirely accurate.
But it's certainly close enough.

 

Getting handheld weather station DA readings from incoming engine air coming off the pavement into the filter is totally useless and irrelevant to this discussion. For that, you need to data log your IAT's etc. to make that air info relevant to your car's performance. You are confusing the general DA readings of the air surrounding your vehicle when stationary as opposed to the measurement of air entering your vehicle while moving. You need a data logger for that info, not a handheld weather station which gives general outside track air information. Any REAL racer should know that

 

Oh, but retrieving readings from a source located potentially 10+ miles away and 30+ feet in the air on top of some building is relevant?

Thank you for helping prove my point.

 

Gee, I thought I was going to get thanked by you for saving you some weight and gained ET on Sat by proving to you that having a handheld taped to your front grill is useless!!

 

No, I was actually going to tape it to the back bumper so that the exhaust could heat up the reading and I could then say "see, look, I ran this ET at xxx DA".