HOW???

[200MPHCOBRA]

are you sayin the Pre-production cars in the mag tests are real world results?
So far the mag tests are saying its still close enough to be a drivers race.
MT 12.4 @114 base SS---12.9 @ 110 GT fully loaded.
CD 12.3 @116 looks like 2SS --- 13.0@112 looks loaded also (notice how CD can get a better time on a heavier SS, yet slower on the GT)

Sorry but a base GT is gonna be pretty close. Ive been in the staging lanes often enough to know that the 6thgenSS isnt enough to be a game changer.

You better tell some of these guys what a staging lane is.

Sponsored

 

[ZaneWayne]

Its fact buddy. I mod and race my cars, not a mag racer like you.

Ouch lol.

 

[02gtnh]

Let me know when you are more accurate than the 2 input calculator. That's why we race cars. I been using that website for many years, and its always been spot on.

How is it spot on? I already showed you how wide apart autos are compared to manuals.

 

[ZaneWayne]

No, merely pointing out a reoccurring pattern...

Where else did GM release official curb weights and then it gain 110 pounds. Go ahead and send a link.

 

[Memphis]

Then don't give me advice on how a car runs at the track if you have never done it. I have, thousands of passes and lots of time and money.

What do you mean don't question you?

I don't care how much time and money you have. Makes no difference to me because it's not mine. I assure you that if I wanted to I could make a competitive car to whatever you have that goes down a boring straight line.

You could have circumvented all of this crap if you just answered Zanes questions without sticking your chest out.

You guys get to defensive so easily.

I know where 02 and Zane are figuring this stuff. .1 of a differences is supposedly a car length to many guys.

You and I know that's not always the case because of different variances.




Sent from my iPhone using Tapatalk

 

[cosmo]

Let me know when you are more accurate than the 2 input calculator. That's why we race cars. I been using that website for many years, and its always been spot on.

I don't think that 2 input calculator is accurate. I don't think the magazine results are accurate. I don't think my calculator right now is accurate. Real world results from a range of users are accurate. The calculators are showing slower than real world runs. A 12.5 Auto Mustang run shouldn't be able to be done stock according to these calculators, but it has. If you hook up right and know how to launch, these calculators won't be accurate. I'm trying to build one that can shows a better understanding of the potential best quarter mile time in real world conditions.

 

[200MPHCOBRA]

How is it spot on? I already showed you how wide apart autos are compared to manuals.

You haven't shown me anything, you just quoted magazine data, tell my mathematically how a camaro can defy physics, and start with the laws of thermodynamics.

 

[mdnt]

I'm building one lol. I've spoken on it in other threads. Plot a torque curve, get the equation of the line, integrate over the RPM range up to redline, reevaluate the RPM after the shift, integrate again, etc. Multiply this output by the gear ratio in that gear, you get net torque. Use F=ma with F(net torque)-F(rolling resistance)-F(wind resistance) and you get your acceleration. Use physics equations such as v(final) = v(inital) + a*t and limit this to ensure that you don't exceed that gear's top speed. Use d = v(initial)*t + (1/2)*a*t^2 to get to the quarter mile. I'm just having difficulty on how precise I want this. My initial builds gave too fast of times because I evaluated the system as perfect traction and didn't incorporate shift times.

Peak numbers give good estimators but the area under the torque/power curve tell the whole story. I've given quite a bit of value, even gave pointers at the end of the post. Online calculators just give a rule of thumb, and shouldn't be used in debates.

Love numbers geeks, I am also guilty of it.
But have to point out that Traction and DA will change your numbers by pretty large margins.

 

[Memphis]

Love numbers geeks, I am also guilty of it.

But have to point out that Traction and DA will change your numbers by pretty large margins.

Yep. Among other things like track condition and prep


Sent from my iPhone using Tapatalk

 

[200MPHCOBRA]

I don't think that 2 input calculator is accurate. I don't think the magazine results are accurate. I don't think my calculator right now is accurate. Real world results from a range of users are accurate. The calculators are showing slower than real world runs. A 12.5 Auto Mustang run shouldn't be able to be done stock according to these calculators, but it has. If you hook up right and know how to launch, these calculators won't be accurate. I'm trying to build one that can shows a better understanding of the potential best quarter mile time in real world conditions.

You will never get an accurate et from your calculations. The calculator uses data from lots of good runs to get its estimation. Friction as it relates to traction is hard to quantify. Yet, mph, distance and weight is a very definable value. Et is a whole nother story. But I applaud the attempt. Also, Stans et calculator is very good too.

 

[ZaneWayne]

You better tell some of these guys what a staging lane is.

I don't know what it is about this site that gets the proverbial tape measure out, but dang. Question someone about grad racing around here people get all kinds of bent out of shape lol.

 

[ZaneWayne]

You will never get an accurate et from your calculations. The calculator uses data from lots of good runs to get its estimation. Friction as it relates to traction is hard to quantify. Yet, mph, distance and weight is a very definable value. Et is a whole nother story. But I applaud the attempt. Also, Stans et calculator is very good too.

So given the 113-116 trap at lets 3,750 pounds, how much hp should the Camaro have?

 

[200MPHCOBRA]

I don't know what it is about this site that gets the proverbial tape measure out, but dang. Question someone about grad racing around here people get all kinds of bent out of shape lol.

It like earning degree, you expect to be compensated for it.

 

[ZaneWayne]

It like earning degree, you expect to be compensated for it.

So once you earn a degree, you can never be questioned?

 

[347CobraII]

No I'm only proving my point, dear. If you can't see how a lighter more powerful car will be faster, I don't know what to tell you lol.

WOW you still don't get it..... stop bench racing

Sponsored