Riptide

If you can't use the DA adjusted times to compare then basically there is no way to compare with results from other areas under other conditions.

Even at Mishri's track the DA can vary WILDLY. Last year he raced in an over 7000' DA on the day he went. His last time out it was 4000'. That's over a 3000' differential at the exact same location!

While Mishri isn't going to claim he ran a 12.9 he will most definitely throw in that it was a 12.9 after the adjustment. Even when talking to people at the same track. Different days, different weather, different results.

What else can you do?

Stkjock

agreed 100% and exactly my point

spot on IMHO, for comparison not claimed times

67mustang302

I agree. The DA correction is based on a standard NHRA correction factor, which is reasonably accurate enough to give a rough comparison of 2 cars competing in different locations and/or at different times. In the end the car runs what the car runs, that's why every last one of us likes going out to the track in the cooler parts of the season in an effort to get the best time. But the only way you can compare 2 cars that didn't run side by side at the same track at the same time(the DA can vary widely enough to matter throughout the same day at the same track) is to use a DA correction, but it's still only a ballpark.

What irritates me more than people using the DA corrected time as their "official time," is when one guy has a faster time than another, but ran in much better weather and then starts shooting his mouth about having a faster car(ie, being a ***** about it). A car going 12.80 with a -1,000 DA claiming it's faster than a car that went 13.0 with a 7,000 DA is dumb, because if you put them side by side on the same track and ran them, the "13.0 car" would blow the doors off the "12.80 car". That's also why I hate a lot of magazine article supposed ET's and mph's, they never tell you what the weather is, so they run the car they hate on a hot day and a car they love on a cold day, and them claim their favored car is faster, when that may not be the case.

JD1969

You can use DA correction to ROUGHLY compare two cars, my point is that you cannot claim a DA corrected time as the "true" time for the car. A car runs what the timeslip says it ran, nothing more, nothing less.

procs2v

[QUOTE=67mustang302;6263201] A car going 12.80 with a -1,000 DA claiming it's faster than a car that went 13.0 with a 7,000 DA is dumb, because if you put them side by side on the same track and ran them, the "13.0 car" would blow the doors off the "12.80 car". T[/QUOTE

Not always true. I know of a big money grudge race that started on another forum, with the same argument. Boys from out midwest said the samething about some NC boys and how if they came to there track the would be so much slower and would lose. While NC took the race and took the money back home. All most anyother time I would say you are right. But set up means everthing.

Stone629

North Carolina FTMFW!!

67mustang302

Well, true, it does depend on how the engine is set up, and some are less affected by DA than others. I was just speaking more generally about most street cars though.

Mishri

There is the flip side.. those guys who ran at -1000 DA who post those slips that are faster than anyone else has ever seen from a stock car or lightly modded car.. I think they should adjust up whenever they claim.. and some do.. I know GeneK actually adjusted his times up for DA so people wouldn't claim BS (even though they still did)

Riptide

+1

Drives me nuts. I don't think I've read a single mag review where they actually mention conditions at the time they did their 1/4 mile testing.

2000AZ5.0GT

I pretty much agree, and it's a horrible comparison. I think for my run, the DA was 5800', so after looking at like three places, the corrected time would've been like high 9's, which is insane.

I know for a fact I'm not driving a 9 second car on the street, and that's the problem when you start to go faster, that same factor becomes a little bit less accurate