Understanding the Racetrack

[motoxlifer]

You do. Because you actually got to the finish line .003 of a sec. quicker than I did, but my timeslip will still show that I had an E.T. of 13.00 not a 13.03.

Your timeslip will show a first to finish margin of .003

[DamnYankee]

<div class='quotetop'>QUOTE(farmtruc &#064; May 19 2006, 02&#58;34 PM) [snapback]53593[/snapback]</div>

During bracket racing, reaction time has everything to do with winning. The slower your reaction time when bracket racing, the slower your overall time on the sheet.
If you run a 13.0sec 1/4 mile and dial in at a 12.99 but your reaction time is .600, I run a 15.00sec with a reaction time is 14.99 and have a reaction time of .500, I win.
They add your reaction time to your 1/4 mile time during competition only.

So guys, when you&#39;re at the track, and you&#39;re practicing on how to launch, forget about the green light, let it set and take your time, don&#39;t worry about the reaction time.

allen
[/b]

Too much freakin math for me - gives me an ice cream headache.

[farmtruc]

<div class='quotetop'>QUOTE(motoxlifer &#064; May 19 2006, 03&#58;43 PM) [snapback]53616[/snapback]</div>

You do. Because you actually got to the finish line .003 of a sec. quicker than I did, but my timeslip will still show that I had an E.T. of 13.00 not a 13.03.

Your timeslip will show a first to finish margin of .003
[/b]

I think there was just a miscommunication there, it&#39;s not added to the timeslip, but it&#39;s added to your overall run.
The clock will still show a 13.0 and so will the timeslip, but the .003 is still "added" to the run. Maybe added isn&#39;t such a good word, but the point is ---- reaction time matters during bracket racing, not time only.

allen

[chrisj6]

<div class='quotetop'>QUOTE(Moze &#064; May 19 2006, 12&#58;00 AM) [snapback]53540[/snapback]</div>

Good analogies - I guess one of my questions would be how would you go about actually matching a stall to a cam? Are there any proven methods or "formulas"?

Obviously the cam mainly gives the hp and the stall gets you there quicker, so with all of the different stalls, I would assume you would want the one that gets you there the quickest for your best 1/4 mile times.
[/b]

A good way to choose a stall is see where your powerband really kicks in, you will want your stall speed 2-300 rpms below this. As for me, I SHOULD have gotten a 26-2800 stall converter, as my powerband starts around 3k. I got a 2500 stall and it lowered my 1000&#39; time by .45 seconds, but my mph was 4 mph better also.

Chris

[vortec350]

On test & tune nights I do not care at all about my reaction times,I am there to try to get new times.

[docone882000]

[motoxlifer]

<div class='quotetop'>QUOTE(docone882000 &#064; May 19 2006, 07&#58;40 PM) [snapback]53626[/snapback]</div>

[/b]

What the hell are you laughin at Doc&#33;









ha ha

[docone882000]

Just amused is all.

[RedHeartbeat]

Yeah, the topic in here changed so many times it&#39;s making my head spin&#33;

[kwkenuf]

Everywhere I have raced, (AZ,CA, NV, CO, UT), reaction time is not added to your ET on your time slip. Depending on your tracks timing system, it shows as a separate measurement of the time consisting of either the time between the last yellow to the green plus the time until your front wheel clears the last staging light or, the time from the green till you clear the last staging light. Depending on how your track prints the results, tracks that add your move time to the time between the yellow and green (.500), a great reaction time would be a .505. At tracks that only show your move time from the green, that same great reaction time would read .005.

Regardless, anything slower than a .600 (or .100) is considered really snoozing at the line and will end up costing you the race once bracket race eliminations begin if the competition is serious.

As to the ET vs trap speed (mph) discussion, ET is a function of the combination of your efforts; chassis, traction, converter, weight, gearing,horsepower and driver input, as where trap speed is "primarlily" a function of horsepower.