Drag Coefficient - Page 2

USAFS197 · 10-11-2018, 03:52 PM

Some of those limitations are in place for reasons other than horsepower or aero. For instance, some tire packages restrict a vehicles top speed; also, drive train components like driveshafts can also have an impact upon top speed restrictions.

SaphfireSS · 10-23-2018, 02:28 PM

It has been stated that the top speed of the 6gen Camaro is limited from the aero to 186 mph. I’ve done 186 in my 2017 SS 1LE. However I do have a tune and am pushing 450hp/460tq to the wheels.

z28pat · 10-28-2018, 08:25 AM

Quote:

Originally Posted by SaphfireSS

It has been stated that the top speed of the 6gen Camaro is limited from the aero to 186 mph. I’ve done 186 in my 2017 SS 1LE. However I do have a tune and am pushing 450hp/460tq to the wheels.

What kind of mods do you have ? And Was your speed gear limited/ aero or just ran out of room ? That’s a great speed , I thought the 1les were less aerodynamic than the regular ss cars

DjsBadger · 10-29-2018, 09:25 PM

The numbers I used in post 11 are from Chevy.

wnta1ss · 11-04-2018, 04:52 AM

Quote:

Originally Posted by DjsBadger

When you double speed, drag increases by 4X and required HP increases by 8X. From an earlier thread.
LS/LT: 149
V6 1LE: 155
SS Vert: 155
SS 1LE: 175
SS Coupe: 180
ZL1 Coupe: 198

The 1LE has more drag than the standard SS due to wider tires and probably more drag to generate some additional downforce. (or to negate lift)

The SS Vert limit of 155 is set as the governor in the ECM as far as I've heard.

SS Coupe governor in ECM is set at 180. Though I think reaching an honest 180 would be quite good if it can do it in reality.

ZL1 Coupe governor is above 198, so perhaps that is a real drag-limited top speed.

z28pat · 11-06-2018, 07:59 PM

From what I remember the zl1s top speed is the drag limited average, it did over 200 one way but couldn’t match it the opposite way.

Nabush · 11-07-2018, 03:54 PM

Gen6 Camaro and C7 vette have poor top speed and high speed performance for their power...

My old euro 3.0 E36 M3 (286hp) from 1994 was able to go around 175 with the govenor disabled...aero was really good and perfect gearing... 5th gears and above are a joke on both C7/Camaro...as well as probably bad drag caused by downforce.

But I highly give up top speed perf for handling

DjsBadger · 11-07-2018, 06:33 PM

Quote:

Originally Posted by wnta1ss

The SS Vert limit of 155 is set as the governor in the ECM as far as I've heard.

SS Coupe governor in ECM is set at 180. Though I think reaching an honest 180 would be quite good if it can do it in reality.

ZL1 Coupe governor is above 198, so perhaps that is a real drag-limited top speed.

The vert top speed is electronically limited, the other values are not.

Regarding the brimmer. No sedan with 286 Hp is going to hit 170. A 2003 evo at 279 hp topped out at 149. Below is directly from a bmw e36 M3 speed run.
https://jalopnik.com/see-the-real-wo...ove-1785545321

159mph

Nabush · 11-07-2018, 07:41 PM

Quote:

Originally Posted by DjsBadger

The vert top speed is electronically limited, the other values are not.

Regarding the brimmer. No sedan with 286 Hp is going to hit 170. A 2003 evo at 279 hp topped out at 149. Below is directly from a bmw e36 M3 speed run.
https://jalopnik.com/see-the-real-wo...ove-1785545321

159mph

I can assure you 3.0 and 3.2 euro can reach 170+

DjsBadger · 11-07-2018, 07:57 PM

The current M3 with 453 HP has a top speed of 174 mph. Sound familiar? It should, it’s about the same as the Camaro 1LE which is not a surprise considering it has about the same HP.

https://www.topspeed.com/cars/bmw/20...-ar178260.html

Nabush · 11-07-2018, 08:07 PM

Quote:

Originally Posted by DjsBadger

The current M3 with 453 HP has a top speed of 174 mph. Sound familiar? It should, it’s about the same as the Camaro 1LE which is not a surprise considering it has about the same HP.

https://www.topspeed.com/cars/bmw/20...-ar178260.html

It is governed. Current M3 with 431 or 450 goes above 186 unlimited.

wnta1ss · 11-08-2018, 04:08 AM

Quote:

Originally Posted by DjsBadger

The vert top speed is electronically limited, the other values are not.

The SS Coupe definitely has a governor at 180, I've read the stock tune. As I also mentioned, not sure it actually goes that fast. Just pointing out that their claim exactly matches what the governor is set to.

Marshsram · 11-08-2018, 12:09 PM

People need to remember that indicated speed on the speedometer and the true GPS speed are often very different when you're well into the triple digits. OEM calibrations for speedometers *ALWAYS* read high by a percentage.

BMWs seems to be one of the worst offenders with most cars seeming to have a 10% +5mph tolerance which is an absolute joke. No shortage of guys boasting about doing 17xmph in their 155mph limited cars just because the speedometer said so.

z28pat · 11-08-2018, 06:03 PM

The front end of 5th and 6th gen camaros looks like a brick wall , it’s so square and large compared to how slick the 4th gens looked.

10-11-2018, 03:52 PM	#15
USAFS197 Drives: 2018 Audi TT RS Join Date: Jan 2014 Location: Navarre, Florida Posts: 1,915	Some of those limitations are in place for reasons other than horsepower or aero. For instance, some tire packages restrict a vehicles top speed; also, drive train components like driveshafts can also have an impact upon top speed restrictions. __________________ 2018 Audi TT ▊RS 2.4X 0-60, 1.6X 60', 120+mph 1/8th, 4.XX 60-130, 150+mph traps on 255/35/18 R888R tires on the street (unprepped). 2019 Audi RS3 About as fast as the TT RS 2019 Camaro ZL1 1LE Sold 2018 Camaro SS 1LE Sold 2019 Corvette Z06 Sold 2021 Charger Hellcat Redeye Widebody Sold

10-23-2018, 02:28 PM	#16
SaphfireSS Drives: 2017 Camaro 1LE SS Join Date: Oct 2016 Location: In my driveway or on the track. Lol Posts: 257	It has been stated that the top speed of the 6gen Camaro is limited from the aero to 186 mph. I’ve done 186 in my 2017 SS 1LE. However I do have a tune and am pushing 450hp/460tq to the wheels.

10-29-2018, 09:25 PM	#18
DjsBadger Drives: Krypton Green Camaro SS 1LE Join Date: Mar 2017 Location: Bolingbrook IL Posts: 40	The numbers I used in post 11 are from Chevy.

11-06-2018, 07:59 PM	#20
z28pat Drives: 2002 z28, 2018 2ss 1LE Join Date: Sep 2012 Location: Parrish, Florida Posts: 835	From what I remember the zl1s top speed is the drag limited average, it did over 200 one way but couldn’t match it the opposite way.

11-07-2018, 03:54 PM	#21
Nabush Drives: 2017 C7 GS M7 / 2017 Camaro SS 1LE Join Date: Dec 2016 Location: Idaho Posts: 198	Gen6 Camaro and C7 vette have poor top speed and high speed performance for their power... My old euro 3.0 E36 M3 (286hp) from 1994 was able to go around 175 with the govenor disabled...aero was really good and perfect gearing... 5th gears and above are a joke on both C7/Camaro...as well as probably bad drag caused by downforce. But I highly give up top speed perf for handling

11-07-2018, 07:57 PM	#24
DjsBadger Drives: Krypton Green Camaro SS 1LE Join Date: Mar 2017 Location: Bolingbrook IL Posts: 40	The current M3 with 453 HP has a top speed of 174 mph. Sound familiar? It should, it’s about the same as the Camaro 1LE which is not a surprise considering it has about the same HP. https://www.topspeed.com/cars/bmw/20...-ar178260.html

11-08-2018, 12:09 PM	#27
Marshsram Drives: 6mt Join Date: May 2017 Location: SF Posts: 32	People need to remember that indicated speed on the speedometer and the true GPS speed are often very different when you're well into the triple digits. OEM calibrations for speedometers ALWAYS read high by a percentage. BMWs seems to be one of the worst offenders with most cars seeming to have a 10% +5mph tolerance which is an absolute joke. No shortage of guys boasting about doing 17xmph in their 155mph limited cars just because the speedometer said so.

11-08-2018, 06:03 PM	#28
z28pat Drives: 2002 z28, 2018 2ss 1LE Join Date: Sep 2012 Location: Parrish, Florida Posts: 835	The front end of 5th and 6th gen camaros looks like a brick wall , it’s so square and large compared to how slick the 4th gens looked.

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