Street Racing & Kill Stories Basic Technical Questions & Advice

Me Vs HOSS and WS6

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Old May 26, 2005 | 06:55 AM
  #101  
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Originally Posted by xphantomws6x
Wait, I'm lost. What does this post have to do with anything???

Nobody is bashing on his car?? I personally think Evo's are cool cars. I do not, however, think a 12 second quarter is fast, nor do I think a stock LS1 is fast. Again ... I believe the kill, but it was exaggerated, plain and simple.

Let me go over this one more time....

10 car lengths is 160 freakin feet. That is HALF A FOOTBALL FIELD ... and the race was only 0-90mph, which took the Evo ~640 feet !!!

So you really believe, that in 640 feet of road, the 12 second evo was beating the 13 second LS1 by 160 feet??? Come on now.
.
Remind me never to get you on a rant
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Old May 26, 2005 | 07:48 AM
  #102  
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i said once and ill say again.

its very possible that i raced for more than 1/8 mile. There were several races that night and the exact details of what gear i was in and what gear i said i was in may not be correct.

however you are assuming that he was a perfect driver, which is an unreal assumption.
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Old May 26, 2005 | 07:59 AM
  #103  
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Originally Posted by Dal1as
By the way the F-bodies weights were listed with an average person 150 or 175 pounds added to the weight along with the 1/4 tank of gas. I don't believe Mits does this so the Evo is just barely under the scales of the F-body.

the meaning of curb weight is the same all across the board. It's the weight of the car with ALL fluids topped off. No driver weight is factored into the weight. It's a standard, like gallons, or horsepower.
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Old May 26, 2005 | 08:04 AM
  #104  
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Originally Posted by xphantomws6x
.
Okay, well I guess I will post the results, since it doesn’t seem like you are trying to do them, even after I gave you half the info needed.

- End of third is before the 1/8 mile, so between 85-90 mph. We’ll use 90 to give you the benefit of the doubt.
- Taken from a friend who has driven an Evo, the end of fourth is right around 120mph.

Therefore, we have ….

- Race 1 was from 40mph – 120mph
- Race 2 was from a Dig – 90mph
- Race 3 with the WS6 was also from a Dig – 90mph
- Car length is 16 feet.


Race 1:

Both the Evo and LS1 start at 40mph. The Evo ends the race going ~120mph, and travels approximately 1185 ft in the 9.6 seconds the race takes. Given the data, when the Evo ends the race, 9.6 seconds after it started, the LS1 would have traveled 1101 feet, and would be traveling 105mph.

The Evo’s 1185 ft minus the LS1’s 1101 ft, divided by 16 ft (car lengths) = 5.25 lengths. Now, don’t forget we need to subtract your cars length, since we are talking about the distance between your rear bumper, and the front bumper of the LS1. Now we are down to 4.25 Lengths. Btw, I would also have to say that driver means nothing in this race, as either driver will just mash on the gas and go.

Race 1, 40mph – 120mph
Claimed = 8 lengths
Possible = 4.25 lengths



Races 2 and 3:

Evo and LS1 start at a dead stop, and race to the Evo’s top of third, around 90mph.

The Evo will reach 90mph 7.6 seconds after the start of the race. (you can check this to be accurate on the fact that you do the 1/8 in 7.7 seconds at 91mph). At this point, it will have traveled approximately 640 ft. In that same 7.6 seconds, the LS1 would have traveled 549 feet, and would be going ~77mph. Again, subtract 549 ft from 640 ft, divide by 16 ft, subtract your cars length, and you get … 4.68 car lengths. Btw, if you feel you want to use an Evo car length, instead of an LS1 car length as I am doing, you could win by 5.13 car lengths, instead of 4.68.

Race 2-3, 0mph – 90mph
Claimed = 10 lengths
Possible = 4.68 lengths



Full Quarter Mile Check:

And, just to check of the math, I did the calculations of you two running a full Quarter Mile…

You finish the Quarter (1320 ft) at 117mph, in 12.1 seconds. In that same 12.1 seconds, the LS1 would have traveled 1,150 ft, and would be going 102 mph…. which puts you at exactly 9.6 car lengths ahead, which is dead accurate.

Full Quarter-Mile Check = 9.6 lengths

Btw, if you were to graph the 2 cars running the quarter, you would find the Evo gains a little over full second lead by the 520 ft mark, around which point the Evo stops pulling and holds the LS1 dead even until the LS1 starts to reel it in around the 1000 ft mark (again, so slightly it really isn’t’ even noticeable).

Please, tell me how wrong I am now.
.

wow thats almost IDENTICAL to what i said earlier. give or take 3/4 of a car length. But since you dont consider his front bumper being at my back bumper 1 car length, theres a slight discrepancy. I, on the other hand do consider that one car length, since my lead is the entire length of my car.

Originally Posted by EvilDylan
o .6 seconds elapses since ive crossed the line, and im maintaining a 91mph speed. i will have traveled an additional 80 feet by the time he crosses the line. this is found by:

91 mph times 5280 feet (1 mile)
all divided by 3600 (number of seconds in an hour) then multiply that by the elapsed time of 6 tenths of a second. Since we are using feet per second as the final velocity.

you get 80.

thats for the 1/8 mile, if it were a 1/4 mile and once again i maintained a 117 mph speed and drove on for another full second, i would have traveled an additional 170 feet.
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Old May 26, 2005 | 08:20 AM
  #105  
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Originally Posted by EvilDylan
first race was from a 40 kick and i think i may have jumped a little cause by the top of 4th i had about 8 cars on him. So he lined them up again and i let him get the jump this time. It was a slightly closer race but in the end (top of 4th) i had the better part of 5 cars on the guy.
Just thought i would RE POST what i actually said, since phamtom seems to forget what was actually said, and what my result actually was.

So phantom, do you see how it's entirely possible that everything i said was true?

the first roll race i got a jump and maybe he shut down since i got the jump and the second race it was a lot closer? you said it was only possible for me to pull 4.25 car lengths not including the length of my car (which i do include). Had you included the length of my car your final result would have been 5.25 lengths.

so, now whats the problem? Everything i have said has turned out to be pretty much correct.
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Old May 26, 2005 | 10:01 AM
  #106  
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Originally Posted by xphantomws6x

P.S. I don't know of many companies that would hire an "engineer" that doesn't believe in math or formula's ... "yeah, just put the beam there, that looks level." Come on now.

I didn't say I don't believe in math and formulas. I said that I realize that a lot of times they are not 100% accurate.


I did make a mistake in my last post. The "imperfect world" thing I brought up was directed a lot at the driver factor. There are plenty of fbody owners that can't drive. For example, there is a WS6 on a local forum, the owner is 16. He has never launched the car with traction control OFF!!!!!! A stock LT1 put 4 or 5 cars on him. Now, by calculations that could never happen!!!

Just saying, Dylan beat those cars. He beat them by roughly the amount he stated. No one can ever be 100% sure of how many cars they win by. Plus, the further in front you get, the harder it is to tell the distance. However, Dylan made is best guess estimate. . .and I can vouch for him that he is not just some ******* posting to start ****.

He is gonna get that *** beat by a little red SS however!!!!
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Old May 26, 2005 | 01:34 PM
  #107  
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Originally Posted by xphantomws6x
Btw, if you were to graph the 2 cars running the quarter, you would find the Evo gains a little over full second lead by the 520 ft mark, around which point the Evo stops pulling and holds the LS1 dead even until the LS1 starts to reel it in around the 1000 ft mark (again, so slightly it really isn’t’ even noticeable).

Please, tell me how wrong I am now.

Phantom Ill assume your calculations are correct, but even if the acceleration is slightly greater for the SS from the 1000 ft point to the end of the quarter mile it means relatively nothing. The velocity of the SS will still be less than that of the EVO so the EVO will continue to expand the distance between the two cars. After the all the acceleration is simply the slope of the line tangent to the velocity curve.....

Nice work BTW.

Last edited by cantdrv65; May 26, 2005 at 01:41 PM.
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Old May 26, 2005 | 01:48 PM
  #108  
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Originally Posted by EvilDylan
wow thats almost IDENTICAL to what i said earlier. give or take 3/4 of a car length. But since you dont consider his front bumper being at my back bumper 1 car length, theres a slight discrepancy. I, on the other hand do consider that one car length, since my lead is the entire length of my car.
Eh, no, because once again, you were not taking the acceleration of the 2 cars into account. You were assuming one car was staying a constant speed, which is incorrect. If you're talking about 5 car lengths, being off by 2 lengths is a decent margin of error (roughly 40% error). You were also using 12 feet as a length ... putting those 2 incorrect factors together actually slightly negated each other.

Originally Posted by cantdrv65
Phantom Ill assume your calculations are correct, but even if the acceleration is slightly greater for the SS from the 1000 ft point to the end of the quarter mile it means relatively nothing. The velocity of the SS will still be less than that of the EVO so the EVO will continue to expand the distance between the two cars. After the all the acceleration is simply the slope of the line tangent to the velocity curve.....

Nice work BTW.
Yup, that is exactly what I was saying. Since the accelerations from each distance span are Compounded ontop of the speed the car was already traveling, by the time the LS1 starts to out accelerate the Evo, it is already too late because the Evo already has such a large MPH lead. Also, as I said to Dylan before, even though the LS1 is out accelerating him, the difference is almost insignificant. Obviously, if they were racing from 90 - 150mph, the LS1 would have the advantage since it would be slightly out accelerating the Evo basically the entire time, which I am assuming means the better aerodynamic characteristics outweighs the slight HP advantage of the Evo at higher speeds. Also, the gearing could have a play in this as well.

As for the calculations, I made a graph after I did them, and it all checks out.

I also figured out what the results would be if they ran a full quarter-mile from a dead stop, and got the 9.6 cars one would expect based on the ~ 1 car per 10th estimates.
.
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Old May 26, 2005 | 01:57 PM
  #109  
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.
however you are assuming that he was a perfect driver, which is an unreal assumption.
I most certainly was, but I was also assuming you were a perfect driver. The whole point of this, is that we were saying that the LS1 was not well driven or something drastic happened. You told us it was not .... you also told us you felt you drove your car to it's full potential ... so what's the problem? If had told us the LS1 guy couldn't drive, this thread would have a max of 15 posts right now.

By the way, I did this all for fun .... as I said a few times before I am not trying to prove that you didn't win, or even prove that you didn't win by that much. I just like to figure out challenging problems like this.

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Old May 26, 2005 | 01:57 PM
  #110  
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Originally Posted by xphantomws6x
Eh, no, because once again, you were not taking the acceleration of the 2 cars into account. You were assuming one car was staying a constant speed, which is incorrect. If you're talking about 5 car lengths, being off by 2 lengths is a decent margin of error (roughly 40% error). You were also using 12 feet as a length ... putting those 2 incorrect factors together actually slightly negated each other.

Um, i wasnt off by 2 car lengths. I was off by .2 meaning two tenths of a car length.

go back, read my post, do the division, and you will see what i'm talking about.
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Old May 26, 2005 | 01:58 PM
  #111  
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Originally Posted by xphantomws6x
.


I most certainly was, but I was also assuming you were a perfect driver. The whole point of this, is that we were saying that the LS1 was not well driven or something drastic happened. You told us it was not .... you also told us you felt you drove your car to it's full potential ... so what's the problem? If had told us the LS1 guy couldn't drive, this thread would have a max of 15 posts right now.

By the way, I did this all for fun .... as I said a few times before I am not trying to prove that you didn't win, or even prove that you didn't win by that much. I just like to figure out challenging problems like this.


like i said before, i have no idea if he was a good driver or not. he's some guy that i ran into on the street that wanted to race. he was young, no more than 18 years old. Whether or not he drove his car perfectly is unknown to me.
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Old May 26, 2005 | 02:02 PM
  #112  
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Originally Posted by EvilDylan
Whats so funny? Do you know how to do math?

90 mph = 132 feet per second.

How long is a car? Id say on average about 10-12 feet

133/12 = 11

WOW so according to logic a 13 second car getting beat by a 12 second car would be losing by approximately 11 car lengths.

open mouth, insert foot there dal ***
This is your original post ... what IS actually correct about it?

You're using a constant 90mph to determine what the difference in the cars is, and you were WRONG, by almost 2 seconds.
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Old May 26, 2005 | 02:04 PM
  #113  
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Originally Posted by EvilDylan
Whats so funny? Do you know how to do math?

90 mph = 132 feet per second.

How long is a car? Id say on average about 10-12 feet

133/12 = 11

WOW so according to logic a 13 second car getting beat by a 12 second car would be losing by approximately 11 car lengths.

open mouth, insert foot there dal ***
This is your original post ... what IS actually correct about it?

You're using a constant 90mph to determine what the difference in the cars is, and you were WRONG, by almost 2 lengths.


Originally Posted by EvilDylan
like i said before, i have no idea if he was a good driver or not. he's some guy that i ran into on the street that wanted to race. he was young, no more than 18 years old. Whether or not he drove his car perfectly is unknown to me.
That's weird, I could've sworn before you said he was a "friend"?? Are all your friends random people you've never seen before??

Originally Posted by EvilDylan
.....cause the guy that i raced told me the distance. he's a friend.
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Old May 26, 2005 | 02:05 PM
  #114  
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Originally Posted by xphantomws6x
This is your original post ... what IS actually correct about it?

You're using a constant 90mph to determine what the difference in the cars is, and you were WRONG, by almost 2 seconds.
i said before that part of that post was a mistake onmy part. i was using my 1/4 mile trap speed and the distance of the 1/8 mile.

This is the part that imtalking about where our results are pretty similar. aside form the fact that i consider 1 car length, his front bumper at my back bumper.

"o .6 seconds elapses since ive crossed the line, and im maintaining a 91mph speed. i will have traveled an additional 80 feet by the time he crosses the line. this is found by:

91 mph times 5280 feet (1 mile)
all divided by 3600 (number of seconds in an hour) then multiply that by the elapsed time of 6 tenths of a second. Since we are using feet per second as the final velocity.

you get 80.

thats for the 1/8 mile, if it were a 1/4 mile and once again i maintained a 117 mph speed and drove on for another full second, i would have traveled an additional 170 feet."
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Old May 26, 2005 | 02:06 PM
  #115  
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Originally Posted by EvilDylan
.....cause the guy that i raced told me the distance. he's a friend.

You are using a quote from a totally different kill story. not even the same person.
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Old May 26, 2005 | 02:07 PM
  #116  
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lol now we are spliting hairs...Next we will need to evaluate the atmospheric conditions of each cars timeslip....

Bottom line: Was it possible for these substantial kills? Yes....Were they exagerated? Probably. Who doesnt slightly increase the margin of victory? lol
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Old May 26, 2005 | 02:10 PM
  #117  
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and yes Evil drop the math theory.... I think Phantom has got you covered there...
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Old May 26, 2005 | 02:11 PM
  #118  
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lol it might turn to that.

im just trying to correct some of the assumptions that were made, and statemsnts by myself that may have been somewhat inaccurate. like the length of the race etc...

I try not to exaggerate or lie when i post a kill story though, and i like to be as objective as possible.
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Old May 26, 2005 | 02:20 PM
  #119  
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Originally Posted by EvilDylan
.... .6 seconds elapses since ive crossed the line, and im maintaining a 91mph speed. i will have traveled an additional 80 feet by the time he crosses the line. this is found by:
I give up. Your math is INCORRECT, which is what I have been saying this whole damn time. Just because you came upon remotely the correct answer doesn't make it right. You are taking a snap-shot of the finish, using a constant speed for yourself, and not factoring the acceleration of the LS1 into the equation at all.

I am attempting to explain to you what you did wrong .... there is no arguing with it.

Btw, where are your "calculations" for the roll race. This I'd love to see.


Originally Posted by EvilDylan
You are using a quote from a totally different kill story. not even the same person.
It's post #47 in this thread?
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Old May 26, 2005 | 02:25 PM
  #120  
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Originally Posted by EvilDylan
....I try not to exaggerate or lie when i post a kill story though, and i like to be as objective as possible.
I'm really not trying to say you lied. Exaggerated, possibly. Bad Driver in the LS1, sure. All I was really doing was correcting your math ... but you kept taking it offensively and provoking me to prove it. I did, it's over.

I'm gonna go wash my car now.
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