Top Speed for 500RWHP - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

PalmerGA · 07-01-2014, 04:47 PM

Quote:

Originally Posted by PoorMansCamaro

found the article:

http://www.popularmechanics.com/cars...o-bonneville-2

it was an ls3.

Great article. Thanks for posting.

FaytalsCamaro · 07-01-2014, 05:04 PM

Quote:

Originally Posted by bdrobLS3

I have a few more ponies than 500 but i've hit 187 in 5th gear at the just before redline and 6th just feels like you deployed a parachute. so / 186??

I always thought you couldnt hit top speed in the overdrive gears since it didnt have enough oomph

bdrobLS3 · 07-01-2014, 05:15 PM

that's what I mean by a parachute it loses all the pull and you start slowing down

Norm Peterson · 07-01-2014, 07:18 PM

Quote:

Originally Posted by bdrobLS3

I have a few more ponies than 500 but i've hit 187 in 5th gear at the just before redline and 6th just feels like you deployed a parachute. so / 186??

Mid-180's sounds about right for 500HP or slightly more, based on being able to hit low 170's with only 425-ish HP.

Quote:

Originally Posted by FaytalsCamaro

I always thought you couldnt hit top speed in the overdrive gears since it didnt have enough oomph

Mostly it depends on the overall gearing (which includes both the individual transmission gear ratios and the axle ratio) and tire diameter, and how far below the power peak the upshift drops the revs to (how close or wide the gear spacing is).

Norm

Norm Peterson · 07-01-2014, 07:40 PM

Quote:

Originally Posted by PoorMansCamaro

although, I remember reading somewhere that the zl1 top speed was 184. not sure if it was because of a limiter, or just the top speed.

I suspect a rev limit, at least with 3.73's. But I don't think it shuts the fun off all that much too soon . . . I'm thinking high 180's, maybe just over 190 would be possible with the right axle gears.

Weight still matters, because it still produces rolling drag that adds to the aero drag. Rolling drag actually increases as you go faster, though this increase is fairly slow.

Norm

t&t moyer · 07-01-2014, 10:56 PM

It becomes a real struggle once in the 180 range, more than a lot of people assume. The amount of HP to push through the 200 barrier is really key especially considering the aero of a stock bodied Camaro, gearing and distance available. But back on track, I believe the 180s is easily achievable considering 500rwhp, street trim gearing and a place to run it to the rev limiter.

Even look at motorcycles. It's easy to reach the mid-180 range, the 186 limiter on my Busa is one thing but even derestricted it takes some good tuning and tinkering to realistically push through the 200 mark. Start adding serious HP to the Busa or equivalent and yes 200 comes really quick then on to the 215-220 range but life gets really tricky at this point.......

JCunningham · 07-02-2014, 02:09 AM

i think i read it takes 800hp to break 200 in a camaro

HDRDTD · 07-02-2014, 03:04 AM

Do a search over in the ZL1 forum, and I think you'll find that hitting the magic 200mph takes a lot more HP than you think even without the rev limiter.

A stock ZL1 M6 will usually dyno at around 490 rwhp and a A6 a bit less, say 480?

At 500 rwhp, I would guess a top end in the mid 180's.

Oh, and by the way IIRC, the A6's come with a 3.23 gear and the M6's with a 3.73.

mikeyg36 · 07-02-2014, 05:26 AM

Quote:

Originally Posted by PalmerGA

I think if you took a stock SS and (somehow) made it pull 500 RWHP, top speed would be the same. The speed limitation would still be, what, 155? Not trying to be a smart ass, but it would take more than just 500 rwhp to increase the top speed. Now, you'd get to that speed sooner, but still... It would depend on the tune, the rear end gearing, etc.

Please tell me where you're going to get 500whp and not need a tune, which would turn the limiter off. Even a bone stock SS with the limiter off could hit 170+

Quote:

Originally Posted by HDRDTD

Do a search over in the ZL1 forum, and I think you'll find that hitting the magic 200mph takes a lot more HP than you think even without the rev limiter.

A stock ZL1 M6 will usually dyno at around 490 rwhp and a A6 a bit less, say 480?

At 500 rwhp, I would guess a top end in the mid 180's.

Oh, and by the way IIRC, the A6's come with a 3.23 gear and the M6's with a 3.73.

No manual Camaro has 3.73s.

Norm Peterson · 07-02-2014, 06:23 AM

Quote:

Originally Posted by JCunningham

i think i read it takes 800hp to break 200 in a camaro

I don't think it'd take quite that much . . . more like 700, possibly as few as 675.

What t&t moyer said is true as you approach the top speed of any vehicle (that isn't artificially set by either rev or speed limiters). Unless you've been there or have a sound understanding of the engineering principles involved, you simply can't imagine how long the last 3 or 4 mph will take (and how much road you'd need) as acceleration drops off to zero. Adding that last mph may take half a mile or more, no matter how much power your engine makes. Invisible wall indeed; you'll be wondering why nothing more seems to be happening.

Unless Chevrolet does as crappy a job of proofreading as they've been doing with keys in recent years, the ZL1 has 3.73's at least available with some powertrain combination.
http://www.chevrolet.com/camaro-zl1-...owertrain.html

Norm

PalmerGA · 07-02-2014, 06:30 AM

Quote:

Originally Posted by mikeyg36

Please tell me where you're going to get 500whp and not need a tune, which would turn the limiter off. Even a bone stock SS with the limiter off could hit 170+

No manual Camaro has 3.73s.

That was my point... going 170+ is not just about horsepower.

mikeyg36 · 07-02-2014, 07:21 AM

Nevermind the ZL1 has 3.73s

johandepuydt · 07-02-2014, 08:49 AM

A few weeks ago I did 188 on GPS. My 2012 SS has 692 Hp.
I can tell you that the L99 shifts back to fifth gear when going full load. 6th gear is not possible.
I think if I would go all the way to rev limiter the speed would be 197Mph.
I have a video of this but will not publish this ;-)
The HUD stops at 187.5 (In Europe this means 300 Km/h).

candyappless · 07-02-2014, 02:19 PM

I have a 2010 supercharged ss and I have done an easy 315km/h in. It was nice and solid at those speeds too.

07-01-2014, 10:56 PM	#20
t&t moyer It's all hers. Drives: 2015 ZL1 Join Date: Jan 2012 Location: Djibouti - Horn of Africa / Wellsville NY Posts: 719	It becomes a real struggle once in the 180 range, more than a lot of people assume. The amount of HP to push through the 200 barrier is really key especially considering the aero of a stock bodied Camaro, gearing and distance available. But back on track, I believe the 180s is easily achievable considering 500rwhp, street trim gearing and a place to run it to the rev limiter. Even look at motorcycles. It's easy to reach the mid-180 range, the 186 limiter on my Busa is one thing but even derestricted it takes some good tuning and tinkering to realistically push through the 200 mark. Start adding serious HP to the Busa or equivalent and yes 200 comes really quick then on to the 215-220 range but life gets really tricky at this point....... __________________ #846

07-02-2014, 02:09 AM	#21
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	i think i read it takes 800hp to break 200 in a camaro __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

07-01-2014, 05:15 PM	#17
bdrobLS3 Drives: 2012 Camaro 2SSRS Manual Coupe Join Date: Apr 2012 Location: Grafenwöhr Germany Posts: 87 View My Garage	that's what I mean by a parachute it loses all the pull and you start slowing down

07-02-2014, 03:04 AM	#22
HDRDTD Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011 Location: Trenton, Michigan Posts: 7,047	Do a search over in the ZL1 forum, and I think you'll find that hitting the magic 200mph takes a lot more HP than you think even without the rev limiter. A stock ZL1 M6 will usually dyno at around 490 rwhp and a A6 a bit less, say 480? At 500 rwhp, I would guess a top end in the mid 180's. Oh, and by the way IIRC, the A6's come with a 3.23 gear and the M6's with a 3.73.

07-02-2014, 07:21 AM	#26
mikeyg36 Drives: 2015 Z/28 #533 Join Date: Jul 2012 Location: NY Posts: 6,731	Nevermind the ZL1 has 3.73s

07-02-2014, 08:49 AM	#27
johandepuydt Drives: Camaro 2012 45th edition-Edelbrock Join Date: Feb 2013 Location: on the globe Posts: 67	A few weeks ago I did 188 on GPS. My 2012 SS has 692 Hp. I can tell you that the L99 shifts back to fifth gear when going full load. 6th gear is not possible. I think if I would go all the way to rev limiter the speed would be 197Mph. I have a video of this but will not publish this ;-) The HUD stops at 187.5 (In Europe this means 300 Km/h).

07-02-2014, 02:19 PM	#28
candyappless Drives: 2010 Camaro SS Join Date: Apr 2014 Location: Calgary Posts: 16 View My Garage	I have a 2010 supercharged ss and I have done an easy 315km/h in. It was nice and solid at those speeds too.