Actual torque numbers for the 1LE? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

karnov · 11-18-2013, 02:51 PM

With the ungraded 3.91 rear and M6 trans., I am hearing the torque multiplier is increased by 13%. This would put the actual torque numbers for the 1LE at 475 tq. Is this accurate?

Camaronutt · 11-18-2013, 03:14 PM

13% over what? 1LE has a trans with different ratios than a SS. SS has a different rear end ratio so maybe the 13% increase is if you go from stock SS ratio in a SS to a 3.91 ratio in a SS?

karnov · 11-18-2013, 03:25 PM

Quote:

Originally Posted by Camaronutt

13% over what? 1LE has a trans with different ratios than a SS. SS has a different rear end ratio so maybe the 13% increase is if you go from stock SS ratio in a SS to a 3.91 ratio in a SS?

13% over the stock SS rating of 420 tq.

Novie LE · 11-18-2013, 03:52 PM

That's not how gearing works. The engine stays at the same rating.

karnov · 11-18-2013, 04:11 PM

Quote:

Originally Posted by Novie LE

That's not how gearing works. The engine stays at the same rating.

The rating stays the same, but what are the actual numbers? I mean if it's the same, what's the point?

Fred 6528 · 11-18-2013, 04:20 PM

VOGGS-LS3-1LE · 11-18-2013, 04:53 PM

Quote:

Originally Posted by Fred 6528

Haha I thought the same

LuSe4 · 11-18-2013, 04:57 PM

Quote:

Originally Posted by VOGGS-LS3-1LE

Haha I thought the same

Me three!

*Mr. Wyndham* · 11-18-2013, 08:16 PM

Physical (as in physics) torque is, indeed, multiplied as they claim...that's why the car feels quicker...and likely is a bit quicker...the change in gearing results in an increase in mechanical advantage.

But the engine is not producing any more power...and if I understand it correctly - that's what dynamometers are calibrated to read.

For reference: here's the ratios...and the overall ratios (once through the rear end)...note that the real difference is in how the gears are spaced much closer, and more evenly 2-5. That's what makes the 1LE transmission so nice on a track. Name: SS1Le gear ratios.jpg
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Name: SS1Le gear ratios.jpg
Views: 624
Size: 82.1 KB

b20 · 11-18-2013, 08:58 PM

ALSO REMEMBER OVERALL TIRE HEIGHT IS ALSO DIFFERENT

VOGGS-LS3-1LE · 11-18-2013, 09:05 PM

That's why dyno testing is done in 4th gear. One to one gearing. One rpm input = one rpm output. No tourque multiplication.

*The_Blur* · 11-18-2013, 09:09 PM

Basically, you can't mathematically make a claim on horsepower or torque based on something that isn't measured in that equation. It's also a bad habit to add horsepower claims from parts to your stock vehicle. Headers will not get you 30+ hp on top of 15+ hp for your exhaust and 5+ hp for your intake. Don't add horsepower based on what you've done to your car. Get real numbers with a dyno, but more importantly take it to the track! That's where you'll see the real gains.

*Mr. Wyndham* · 11-18-2013, 09:28 PM

Quote:

Originally Posted by b20

ALSO REMEMBER OVERALL TIRE HEIGHT IS ALSO DIFFERENT

Yes. By about 1/4 of an inch overall.

EDIT: I'm wrong...¾ inch.

Dropspeed · 11-18-2013, 09:38 PM

Quote:

Originally Posted by Mr. Wyndham

Yes. By about 1/4 of an inch overall.

It is closer to just over 3/4" OD delta

285/35/20= 27.85" OD
275/40/20= 28.66" OD

Matt

11-18-2013, 02:51 PM	#1
karnov Drives: 2014 Camaro 1SS 1LE Join Date: Aug 2013 Location: Arizona Posts: 91	Actual torque numbers for the 1LE? With the ungraded 3.91 rear and M6 trans., I am hearing the torque multiplier is increased by 13%. This would put the actual torque numbers for the 1LE at 475 tq. Is this accurate?

11-18-2013, 08:16 PM	#9
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	Physical (as in physics) torque is, indeed, multiplied as they claim...that's why the car feels quicker...and likely is a bit quicker...the change in gearing results in an increase in mechanical advantage. But the engine is not producing any more power...and if I understand it correctly - that's what dynamometers are calibrated to read. For reference: here's the ratios...and the overall ratios (once through the rear end)...note that the real difference is in how the gears are spaced much closer, and more evenly 2-5. That's what makes the 1LE transmission so nice on a track. __________________ *"Keep the faith."* - Fbodfather

11-18-2013, 09:05 PM	#11
VOGGS-LS3-1LE Angry by Nature Drives: 13' Camaro 1SS/RS/1LE/NPP 1 of 76 Join Date: Aug 2013 Location: Pittsburgh, PA Posts: 343	That's why dyno testing is done in 4th gear. One to one gearing. One rpm input = one rpm output. No tourque multiplication. __________________ 2013 CHEVROLET CAMARO 1SS/RS/1LE/NPP 1 OF 76 Roto Fab CAI 1LE BADGES

11-18-2013, 09:09 PM	#12
The_Blur Moderator Drives: 2018 Harley-Davidson Street Bob Join Date: Nov 2007 Location: San Diego Posts: 14,769	Basically, you can't mathematically make a claim on horsepower or torque based on something that isn't measured in that equation. It's also a bad habit to add horsepower claims from parts to your stock vehicle. Headers will not get you 30+ hp on top of 15+ hp for your exhaust and 5+ hp for your intake. Don't add horsepower based on what you've done to your car. Get real numbers with a dyno, but more importantly take it to the track! That's where you'll see the real gains. __________________ RDP Motorsport//GEN5DIY//Cultrag Performance//JPSS//Rodgets Chevrolet// Operation Demon//Buy at Invoice//RACECARWEAR RESPECT ALL CARS. LOVE YOUR OWN. warn 145:159 ban

11-18-2013, 03:14 PM	#2
Camaronutt Drives: 68 Camaro--2009 Corvette Join Date: Oct 2013 Location: Austintown Ohio Posts: 37	13% over what? 1LE has a trans with different ratios than a SS. SS has a different rear end ratio so maybe the 13% increase is if you go from stock SS ratio in a SS to a 3.91 ratio in a SS?

11-18-2013, 03:52 PM	#4
Novie LE Drives: 2014 1LE Join Date: Sep 2013 Location: Sometimes here, sometimes there Posts: 399	That's not how gearing works. The engine stays at the same rating.

11-18-2013, 04:20 PM	#6
Fred 6528 Drives: 2011 ss Join Date: May 2013 Location: va Posts: 983

11-18-2013, 08:58 PM	#10
b20 Drives: 2013 1LE RS 1SS Join Date: Apr 2009 Location: barberton ohio Posts: 320	ALSO REMEMBER OVERALL TIRE HEIGHT IS ALSO DIFFERENT