gear vs speed chart

FarmerFran · 03-23-2023, 04:11 PM

Anyone have a gear vs speed chart for the manual ZL1

TIA

arpad_m · 03-23-2023, 04:24 PM

Something like this? Or did you mean just a table with max speeds in each gear, or...?

https://www.automobile-catalog.com/p...e_6-speed.html

NOTE: unfortunately the speeds quoted above are for the SS, not the ZL1 . I've removed the screenshot but left the link here in case someone is still interested in the data.

FarmerFran · 03-23-2023, 04:41 PM

Quote:

Originally Posted by arpad_m

Something like this? Or did you mean just a table with max speeds in each gear, or...?

https://www.automobile-catalog.com/p...e_6-speed.html

Thank you! and yes, a table with max speed at gear.

I know listen to the car... but on downshifts it is good to know how far down I can go.

mariojas · 03-23-2023, 05:51 PM

Quote:

Originally Posted by arpad_m

Something like this? Or did you mean just a table with max speeds in each gear, or...?

https://www.automobile-catalog.com/p...e_6-speed.html

This table is wrong. ZL1 goes to 62mph on first gear. Ask me how I know.

FarmerFran · 03-23-2023, 07:08 PM

Quote:

Originally Posted by mariojas

This table is wrong. ZL1 goes to 62mph on first gear. Ask me how I know.

That is significantly different!

LiqTenExp · 03-23-2023, 08:17 PM

And if you are modified a bit you can break the speed limit in some states in 1st

arpad_m · 03-23-2023, 08:59 PM

Hmm, you guys are right, it seems the site erroneously spec'd the SS TR6060 gear ratios for the ZL1. I've just recalculated and the M6 ZL1 can indeed do 61.54 mph in first gear (inaccuracies suck). I'll edit my post.

mariojas · 03-24-2023, 06:59 AM

Quote:

Originally Posted by arpad_m

Hmm, you guys are right, it seems the site erroneously spec'd the SS TR6060 gear ratios for the ZL1. I've just recalculated and the M6 ZL1 can indeed do 61.54 mph in first gear (inaccuracies suck). I'll edit my post.

I use the same website year ago an it was fine. They did show 62, but now something happened and its wrong...

FarmerFran · 03-24-2023, 10:33 AM

Here is what I came up with...

https://spicerparts.com/calculators/...rpm-calculator

arpad_m · 03-24-2023, 11:13 AM

Quote:

Originally Posted by FarmerFran

Here is what I came up with...

https://spicerparts.com/calculators/...rpm-calculator

See? In some states you could technically drive the speed limit in 1st

There goes your "stick shift theft insurance", if they can pull away in first gear (with a burnout), they never need to use the clutch again

raptor5244 · 03-24-2023, 11:40 AM

Quote:

Originally Posted by FarmerFran

Here is what I came up with...

https://spicerparts.com/calculators/...rpm-calculator

Here is another way, which matches your chart. Watch the speedo on this pull.

Skip to 3:30 for the pull.

In the video...
1st= 59mph
2nd=84mph
3rd=113mph
4th=136mph

mariojas · 03-24-2023, 12:11 PM

Quote:

Originally Posted by raptor5244

Here is another way, which matches your chart. Watch the speedo on this pull.

Skip to 3:30 for the pull.

In the video...
1st= 59mph
2nd=84mph
3rd=113mph
4th=136mph

Checks out. Theoretical 62ish, while this guy just enjoy driving. No point in hitting that rev limiter

EDIT: Just checked - 62 is what I get if I keep it on rev limiter.

FarmerFran · 03-24-2023, 04:50 PM

Quote:

Originally Posted by arpad_m

See? In some states you could technically drive the speed limit in 1st

There goes your "stick shift theft insurance", if they can pull away in first gear (with a burnout), they never need to use the clutch again

wnta1ss · 03-26-2023, 07:13 AM

Quote:

Originally Posted by FarmerFran

Anyone have a gear vs speed chart for the manual ZL1

TIA

Here's the gearing and speed relationship for your ZL1 Convertible M6 with 3.73 differential and 305/30-20 SC3 tires. Convertible stock tune has the speed limiter at 155 instead of 206 like the ZL1 Coupe has.

1st gear 2.289= 60.74mph@6500rpm=9.35mph/1000rpm
2nd gear 1.611= 86.31mph@6500rpm=13.28mph/1000rpm
3rd gear 1.208=115.10mph@6500rpm=17.71mph/1000rpm
4th gear 1.000=139.04mph@6500rpm=21.39mph/1000rpm
5th gear 0.818=155.00mph@5927rpm=26.15mph/1000rpm
6th gear 0.536=155.00mph@3884rpm=39.91mph/1000rpm

The mph/1000rpm allows you to calculate what downshifting at a certain speed would do. Example, if you were going 60mph in 6th gear, loafing at just 1503rpm, and you downshifted to 2nd gear, it would then be revving at 4518rpm.

Note on ZLE video, that car has shorter tires and a different 6th gear ratio than the normal ZL1, so not an exact match to your car.

03-23-2023, 04:11 PM	#1
FarmerFran Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020 Location: Earth Posts: 4,591	gear vs speed chart Anyone have a gear vs speed chart for the manual ZL1 TIA __________________ <Insert Cars You Own Here>

03-23-2023, 04:24 PM	#2
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 13,476 View My Garage	Something like this? Or did you mean just a table with max speeds in each gear, or...? https://www.automobile-catalog.com/p...e_6-speed.html NOTE: unfortunately the speeds quoted above are for the SS, not the ZL1 . I've removed the screenshot but left the link here in case someone is still interested in the data. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle Terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18 Last edited by arpad_m; 03-23-2023 at 09:01 PM.

03-23-2023, 08:17 PM	#6
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 926	And if you are modified a bit you can break the speed limit in some states in 1st __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

03-23-2023, 08:59 PM	#7
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 13,476 View My Garage	Hmm, you guys are right, it seems the site erroneously spec'd the SS TR6060 gear ratios for the ZL1. I've just recalculated and the M6 ZL1 can indeed do 61.54 mph in first gear (inaccuracies suck). I'll edit my post. __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle Terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

03-24-2023, 10:33 AM	#9
FarmerFran Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020 Location: Earth Posts: 4,591	Here is what I came up with... https://spicerparts.com/calculators/...rpm-calculator Attached Images __________________ <Insert Cars You Own Here>

User Name		Remember Me?
Password