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Old 01-17-2012, 08:17 PM   #1
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Explaine this to my ingnorant @ss

Ok so how does a xyz supercar run great 1/4 mile and have high top end? Here is what I think I "know"
1. Lots of power/tq from great motor I get that...
2. Light weight in some cases
3. Tuning

Ok so now for the questions the rear end has gears that are for what?

And the tranny has gears that to what?

It would appear that the transmition has a s--t ton to do w it based off of the ps3 game GT5 ... I'm going to get hated on for this :-/
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Old 01-17-2012, 08:27 PM   #2
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Not to be a jerk but bro you should use spell check sometimes !!!!
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Old 01-17-2012, 08:30 PM   #3
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U have no idea how bad I am... My 1st grader corrects me... Plus I have a stupid iPhone and I hate this thing for typing...
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Old 01-17-2012, 08:41 PM   #4
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if i understand you right the way a lot of cars such as vipers have both top end and quarter mile times is that they have 6 speeds that the first 4 gears are pretty much for the quarter and 5 and 6th have numerically low gearing such that the car could do 70 at like 1200 rpms and as such can have high top speeds
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Old 01-17-2012, 08:57 PM   #5
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Super cars don't need 4.10s or 4.56s cause there raw power and light weight, and are mustang don't run out of gear they run out of horsepower to reach those crazy high speeds
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Old 01-17-2012, 09:02 PM   #6
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I Disagree, my car will pull all the way throughout the rpm range in every gear. The gears in the tranny and gears in the rear end limit you. NOT our HP
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Old 01-17-2012, 09:03 PM   #7
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Quote:
Originally Posted by Gibby
I Disagree, my car will pull all the way throughout the rpm range in every gear. The gears in the tranny and gears in the rear end limit you. NOT our HP
What speed have you maxed out at
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Old 01-17-2012, 09:09 PM   #8
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Re: Explaine this to my ingnorant @ss

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Originally Posted by BaSohol View Post
Super cars don't need 4.10s or 4.56s cause there raw power and light weight, and are mustang don't run out of gear they run out of horsepower to reach those crazy high speeds
The Bugatti Veyron weighs over 5k....A large Frontal Area has more to do with top speed than hp.
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Old 01-17-2012, 09:15 PM   #9
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Quote:
Originally Posted by Cobrarunnin9s

The Bugatti Veyron weighs over 5k....A large Frontal Area has more to do with top speed than hp.
Veyron has 1000+ hp and it has a way less drag, it's not weight at 200+ mph that hold you back it's wind resistance, they upped the hp on the new veyron I was able to get a few more mph, and if gearing was the case why didnt they just lighten it and change the final gear ratio?
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Old 01-17-2012, 09:17 PM   #10
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I got my bone stock 06 speedometer pegged, which is around 140-145. I also stayed in it for a lil and rpm kept going. This is with 3.55 gears
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Old 01-17-2012, 09:21 PM   #11
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Quote:
Originally Posted by Gibby
I got my bone stock 06 speedometer pegged, which is around 140-145. I also stayed in it for a lil and rpm kept going. This is with 3.55 gears
Damn I'm not that brave, but what rpm where you at while you were doing 145?
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Old 01-17-2012, 09:21 PM   #12
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Re: Explaine this to my ingnorant @ss

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Originally Posted by BaSohol View Post
Veyron has 1000+ hp and it has a way less drag, it's not weight at 200+ mph that hold you back it's wind resistance, they upped the hp on the new veyron I was able to get a few more mph, and if gearing was the case why didnt they just lighten it and change the final gear ratio?
Large Frontal Area equals more wind resistance
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Old 01-17-2012, 09:24 PM   #13
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The steeper the rear gear the lower your top speed is gonna be. But you'll get there faster. Which is ideal for a stock or mildly modded 281. You can put a higher gear in your rear end and do 200mph it will just take you 20 miles to get that fast.....

---------- Post added at 08:24 PM ---------- Previous post was at 08:23 PM ----------

It was a while ago but probably around 4500.
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Old 01-17-2012, 09:29 PM   #14
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Quote:
Originally Posted by Cobrarunnin9s

Large Frontal Area equals more wind resistance
From the article about the new veyron SS

Aerodynamics play an important role at such speeds. For a record attempt that focusses on speed alone, it's basically how many horsepower can you muster to push the air out of the way, and then what you can do to reduce frontal area and co-efficient of drag, or aerodynamic friction.
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Old 01-17-2012, 09:34 PM   #15
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Re: Explaine this to my ingnorant @ss

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Originally Posted by BaSohol View Post
From the article about the new veyron SS

Aerodynamics play an important role at such speeds. For a record attempt that focusses on speed alone, it's basically how many horsepower can you muster to push the air out of the way, and then what you can do to reduce frontal area and co-efficient of drag, or aerodynamic friction.
regardless its not just one single attribute of a car that allows said vehicle to attain a given top speed its many factors that all contribute to the big picture.
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Old 01-17-2012, 09:44 PM   #16
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It's 3 ,wind resistance, horsepower and gears

---------- Post added at 09:44 PM ---------- Previous post was at 09:38 PM ----------

Quote:
Originally Posted by Cobrarunnin9s

regardless its not just one single attribute of a car that allows said vehicle to attain a given top speed its many factors that all contribute to the big picture.
Oh sorry I just re read the whole thread, I didn't know what you were trying to say, for some reason I thought you were disagreeing about the importance of coefficient drag
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Old 01-17-2012, 09:48 PM   #17
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Re: Explaine this to my ingnorant @ss

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Originally Posted by BaSohol View Post
It's 3 ,wind resistance, horsepower and
gears

---------- Post added at 09:44 PM ---------- Previous post was at 09:38 PM ----------



Oh sorry I just re read the whole thread, I didn't know what you were trying to say, for some reason I thought you were disagreeing about the importance of coefficient drag
no problem, here is a list of factors that affect a car's top speed capabilities:

Weight of vehicle.
Aerodynamics of vehicle.
Horsepower & torque of engine.
Gearing of vehicle.
Headwind or tailwind.
Elevation above sea level.
Type of fuel used.
Terrain.
Tires.
Outside temperature.
Weather.
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Old 01-17-2012, 09:53 PM   #18
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Quote:
Originally Posted by Cobrarunnin9s

no problem, here is a list of factors that affect a car's top speed capabilities:

Weight of vehicle.
Aerodynamics of vehicle.
Horsepower & torque of engine.
Gearing of vehicle.
Headwind or tailwind.
Elevation above sea level.
Type of fuel used.
Terrain.
Tires.
Outside temperature.
Weather.
Haha it's more then that of you want to get technical
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Old 01-17-2012, 10:10 PM   #19
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Found this! Scroll down to the part about drag coefficients. THIS is the reason a Bugatti stops at the speed it stops at. http://en.wikibooks.org/wiki/Basic_A...ag_Coefficient
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Old 01-17-2012, 10:37 PM   #20
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So what could be done to achieve similar results (on a smaller scale) w our cars? I know adding forced induction and so on an so forth... But would re-gearing the transmition help? And the steeda charge motion delete plates, I know they are for the first 3k rpm but would that not allow for higher speeds? Or how about building a custom thing like this?

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Old 01-17-2012, 10:39 PM   #21
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Quote:
Originally Posted by Silversky545
So what could be done to achieve similar results (on a smaller scale) w our cars? I know adding forced induction and so on an so forth... But would re-gearing the transmition help? And the steeda charge motion delete plates, I know they are for the first 3k rpm but would that not allow for higher speeds? Or how about building a custom thing like this?
Honestly, I would say increasing top end power... Unless you just want to got top speed and find a nice low drag bumper and other things to make it have a lower drag coefficient.
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Old 01-17-2012, 10:44 PM   #22
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I plan on attending the texas mile... I don't want to break the bank, but I would like to add a few components to help achieve better trap speeds...

Cmdp: was going to get this anyway that why I asked the question

Btw I can't run radials only street tires... And this is my daily so I'm not messing w nitrous... Was hoping for 160 mph but from the looks of previous cars that have made a pass I don't think it will b possible
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Old 01-17-2012, 10:48 PM   #23
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Stock Lincoln mark VIII hit 182mph with a different rear gear


www.markviii.org/LOD2/bonneville.htm

---------- Post added at 10:48 PM ---------- Previous post was at 10:45 PM ----------

This happened in 1993, so 182 was fast real fast
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Old 01-18-2012, 12:05 AM   #24
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Are you running you car at Texas mile? If you're taking a class, you'll probably be driving their car.

Are you road racing or on the oval? If road racing not so much top end, mostly handling and driving skill. After your Texas mile, I'd talk to those guys about the best setup for the type racing you choose. Choosing is the most important first step, then you can mod accordingly, otherwise you're wasting $.
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Old 01-18-2012, 12:11 AM   #25
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Texas mile is where you start from a stop and go as fast as possible in a mile... From talking to the people who run it there is no class... There are classes that you are assigned to... I'm not looking at doing anything major, just simple stuff that might contribute to higher top speeds... I'd like to road race the car at some point... I'm not going to put Something on the car that will take away from my end goal...
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Old 01-18-2012, 07:48 AM   #26
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Quote:
Originally Posted by Silversky545
U have no idea how bad I am... My 1st grader corrects me... Plus I have a stupid iPhone and I hate this thing for typing...
Lol it's all good. I'm bit of a grammar nut due to years of college (it's kinda forced habit). I correct my 10yr old all the time.
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