How is top speed reached in 5th gear? (LS3) - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Bmatth1162 · 08-24-2013, 12:19 AM

I forget exactly how it came up, but I was talking with my friend today and he mentioned how he thought it was funny that the top speed in our cars is reached in 5th gear, but can't be reached in 6th. I just sort of nodded and hoped he couldn't read my mind (pure confusion). Is this even true? Intuitively, the top gear would be the one to reach the top speed, but maybe the ratio in 6th is so low that it can't functionally use the HP needed to get there?

That's my only confused explanation. Thanks!

JCunningham · 08-24-2013, 12:52 AM

dont know but you reach the 155mph speed limiter right after shifting into 5th

Biscuitpie · 08-24-2013, 01:34 AM

Quote:

Originally Posted by JCunningham

dont know but you reach the 155mph speed limiter right after shifting into 5th

Granny shifting! You can hit 160 in 4th. Source: internet and personal experience. I think 6th mathematically goes to 288 or something so you'll never hit that speed. Not sure what 5th goes to but it's lower than 6th.

JohnnyBfromPeoria · 08-24-2013, 01:34 AM

In the absence of speed limiters and the spectre of death, the top speed of a Camaro would be reached at a point that enables the engine to be delivering maximum power at the lowest gear ratio to overcome aerodynamic and friction losses.

Have fun.

John B.

jd10013 · 08-24-2013, 05:13 AM

6th is an overdrive designed for MPG's. you probably would loose a bit of power going from 5th to 6th

zackex · 08-24-2013, 05:18 AM

I like sixth because it just quiets things down on the highway and that big V8 just lopes along with all the torque. Then you can just shift to fourth to blast out there when you want to.

mrvenicess · 08-24-2013, 06:15 AM

Top speed is reached in 5th gear, 178 or there abouts, 6th is too tall and usually tops out around 145.

FaytalsCamaro · 08-24-2013, 10:31 AM

Quote:

Originally Posted by mrvenicess

Top speed is reached in 5th gear, 178 or there abouts, 6th is too tall and usually tops out around 145.

this...6th gear is overdrive and it doesnt have the power to overcome air resistance to reach topspeed. Moreso meant for MPG. And also like it was said before with the speed limiter at 155 top speed can be reached in 4th

Dupree878 · 08-24-2013, 02:21 PM

Where do y'all get a speed limiter at 155?
Mine's showed 162 before I Had to get out of it. And that was in 5th.

Biscuitpie · 08-24-2013, 02:58 PM

Quote:

Originally Posted by Dupree878

Where do y'all get a speed limiter at 155?
Mine's showed 162 before I Had to get out of it. And that was in 5th.

Do you have a tune? In any stock Camaro the DIC/HUD will say "Speed Limiter Reached" or something like that at 155. I could always go 156 for some reason though.

2012-1822 · 08-24-2013, 04:13 PM

Quote:

Originally Posted by Biscuitpie

Do you have a tune? In any stock Camaro the DIC/HUD will say "Speed Limiter Reached" or something like that at 155. I could always go 156 for some reason though.

ZL1's go a little higher before that crap kicks in.

Emvici · 08-24-2013, 04:30 PM

will a dyno tune allow you to bypass the speed limiter?

Biscuitpie · 08-24-2013, 04:33 PM

Quote:

Originally Posted by Emvici

will a dyno tune allow you to bypass the speed limiter?

Yep, so will a handheld.

SUX2BU · 08-24-2013, 04:44 PM

Quote:

Originally Posted by jd10013

6th is an overdrive designed for MPG's. you probably would loose a bit of power going from 5th to 6th

Quote:

Originally Posted by FaytalsCamaro

this...6th gear is overdrive and it doesnt have the power to overcome air resistance to reach topspeed. Moreso meant for MPG. And also like it was said before with the speed limiter at 155 top speed can be reached in 4th

You guys realize that 5th is also an overdrive gear, right?

08-24-2013, 12:19 AM	#1
Bmatth1162 Drives: 2011 1SS/RS LS3 Join Date: Dec 2012 Location: Wilmington, DE Posts: 319	How is top speed reached in 5th gear? (LS3) I forget exactly how it came up, but I was talking with my friend today and he mentioned how he thought it was funny that the top speed in our cars is reached in 5th gear, but can't be reached in 6th. I just sort of nodded and hoped he couldn't read my mind (pure confusion). Is this even true? Intuitively, the top gear would be the one to reach the top speed, but maybe the ratio in 6th is so low that it can't functionally use the HP needed to get there? That's my only confused explanation. Thanks! __________________ CAI intake, apex scoop, Vmax ported TB, MGW short throw, BMR 1" springs and sways

08-24-2013, 12:52 AM	#2
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	dont know but you reach the 155mph speed limiter right after shifting into 5th __________________ 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

08-24-2013, 01:34 AM	#4
JohnnyBfromPeoria Drives: 2012 LS M6, Black Join Date: May 2009 Location: Phoenix, AZ Posts: 2,045	In the absence of speed limiters and the spectre of death, the top speed of a Camaro would be reached at a point that enables the engine to be delivering maximum power at the lowest gear ratio to overcome aerodynamic and friction losses. Have fun. John B. __________________ 12 LS M6, IPF S/C, ASA GT-5 wheels, VMax PTB 1995 Mitsubishi Montero SR 1987 Dodge Raider Turbo Project 1986 Mitsubishi Montero 2.4l FI Transplant

08-24-2013, 05:18 AM	#6
zackex Drives: 45th Camaro SS Join Date: Mar 2013 Location: boston Posts: 74 View My Garage	I like sixth because it just quiets things down on the highway and that big V8 just lopes along with all the torque. Then you can just shift to fourth to blast out there when you want to. __________________ Audente Fortuna Iuvat

08-24-2013, 02:21 PM	#9
Dupree878 Drives: '13 Dusk Edition 2SS/RS M6 Join Date: Nov 2012 Location: Tuscaloosa, AL Posts: 600	Where do y'all get a speed limiter at 155? Mine's showed 162 before I Had to get out of it. And that was in 5th. __________________

08-24-2013, 05:13 AM	#5
jd10013 Drives: 2012 camaro Join Date: Feb 2012 Location: central VA Posts: 3,196	6th is an overdrive designed for MPG's. you probably would loose a bit of power going from 5th to 6th

08-24-2013, 06:15 AM	#7
mrvenicess Drives: 2013 CRT ZL1 auto Join Date: May 2010 Location: Venice Fl Posts: 1,443 View My Garage	Top speed is reached in 5th gear, 178 or there abouts, 6th is too tall and usually tops out around 145.

08-24-2013, 04:30 PM	#12
Emvici Drives: 2014 ZL1 White Convertible Join Date: Aug 2013 Location: St Pete Fl Posts: 682	will a dyno tune allow you to bypass the speed limiter?