Re: [FWDLK] DOG, and 150 Ponies show!

[William Huff <whuff@xxxxxxxxxx>]

That is the beauty of these calculators.  You can work variables
using weight, HP, speed or E.T. to come up with ideal
possibilities.  It's all a guessing game anyway until the rubber
hits the road, but we can certainly throw a suspicious light on some of
the more outrageous claims.

Bill Huff

At 11/7/200712:41 AM, eastern sierra Adj Services wrote:

Bill, in the finest traditions of Garbage-in-Garbage-out, we don't
really know , yet, what the actual road HP, or vehicle weight may have
been, on the car that ran at Daytona.

We might be able to confirm the as-raced weight, from the NHRA
archivist, but unless we can score the factory's dynamometer read outs
(which almost certainly were recorded, before shipping the car off to
Daytona) it will be difficult to project various perfect-world/traction/
weather condition quarter mile times.

But, until then, various combinations of variables can be plugged into
the formula.

Neil Vedder


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Reply-To: William Huff <whuff@xxxxxxxxxx>
Sender: Forward Look Mopar Discussion List <L-FORWARDLOOK@xxxxxxxxxxxxx>
From: William Huff <whuff@xxxxxxxxxx>
Subject: Re: [FWDLK] DOG, and 150 Ponies show!
Comments: To: AdamL57@xxxxxxx
To: L-FORWARDLOOK@xxxxxxxxxxxxx
In-Reply-To: <cac.1e42f831.34625b20@xxxxxxx>

This or any other reputable calculator should not be so lightly dismissed.  These simple programs obviously do not take all factors into consideration.  But, they do provide an ideal situation based on ideal conditions.  Yup, leaving a one legged 50' long tire stripe will throw the calculations off.  But this discussion has turned into "What was possible", since there are no extant records.  Driver skill will approach the ideal, but I don't believe it will surpass it. 

I have fooled with the same GTX for over 28 years.  Tuning and practice all make a difference, but it is an incremental difference of tenths or hundredths of seconds.  That will win or lose the race, but most similar cars driven in a similar manner will have similar terminal speeds, since that is a function of HP.  The actual E.T. will vary, but only by a little assuming equal driving skills.

My GTX has a best E.T. of 12.55 at some speed around 105, can't remember and don't know where the time slips are since I haven't raced in a couple of years.  This was with 30"/10.5" slicks and open headers.  These calculators predicted about a 12.49 for my car.  I think that is pretty close given all possible variables. 

They provide just an estimate, but if the estimate wasn't at least in the ball park, some really professional outfits wouldn't use them.  There are other calculators that cost some dough that can take virtually any variable known into account, but these free ones are just put forth as an estimate for what is supposed to be an enlightening and possibly entertaining discussion.

Here are some others for a comparison check.

http://www.turbofast.com.au/Drag.html

http://www.hardcore50.com/members/calculators.htm

http://www.ajdesigner.com/fl_horsepower_trap_speed/horsepower_trap_speed.php


Bill Huff


At 11/6/200707:04 PM, Adam Lindenbaum wrote:

Wow if that really works I guess there is no need to spend all of this time at a drag strip. Tire pressure,aerodynamics, driver skills,traction,tuning,atmospheric conditions all really never made as much of a difference as we all thought! Give me a break! And try more likely 3800 pounds!
Adam Lindenbaum

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