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Old 10-24-2012, 03:29 PM   #1
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GM listed 420 lb-ft of torque for the SS with 1LE

So adding the 1LE performance package to an SS doesn't increase torque?
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Old 10-24-2012, 03:32 PM   #2
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No it doesn't. Tq multiplication increases because of the 3.91 gear, but actual flywheel tq stays the same. Same exact LS3 that's in the SS
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Old 10-24-2012, 03:38 PM   #3
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Ok so will there be more torque to the ground? I thought just adding 3.91 gears you'd get at least a 10% increase to the ground.
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Old 10-24-2012, 04:02 PM   #4
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Originally Posted by tramtwo View Post
Ok so will there be more torque to the ground? I thought just adding 3.91 gears you'd get at least a 10% increase to the ground.
Torque to the ground? That isn't a standard measurement that I've ever heard of, since it encompasses so many variables (transmission type, trans gearing, rear end gears, tire size, friction losses due to gearing cut type, etc etc)

The 1LE will definitely *feel* snappier bc of the 3.91's (thus explaining the high demand for the 3.91's), but that's just the multiplier effect of the higher gear ratio, not an increase of torque produced by the motor.

We might say that the 1LE has greater 'fake torque' than a standard SS... LoL
(Come on... its a joke!)
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Old 10-24-2012, 04:05 PM   #5
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Torque to the ground? That isn't a standard measurement that I've ever heard of, since it encompasses so many variables (transmission type, trans gearing, rear end gears, tire size, friction losses due to gearing cut type, etc etc)

The 1LE will definitely *feel* snappier bc of the 3.91's (thus explaining the high demand for the 3.91's), but that's just the multiplier effect of the higher gear ratio, not an increase of torque produced by the motor.

We might say that the 1LE has greater 'fake torque' than a standard SS... LoL
(Come on... its a joke!)
And a funny one at that. So for the uninformed. What would that snappier feel be measured as?
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Old 10-24-2012, 05:19 PM   #6
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Fake torque = REar wheel torque that you see on a chasis dyno. I think a lot people consider theis real torque since this is the actual power getting to the ground. An engine can make all the power in the world but if you cant get it to the wheels efficiently it is worthless. The manufacturer engine ratings use flywheel ratings from an engine dyno.
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Old 10-24-2012, 06:47 PM   #7
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It's clear to me that GM didn't SAE recertify the 2013 cars with electric steering and NPP?
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Old 10-24-2012, 06:49 PM   #8
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lets not forget about the electric steering and the NPP exhaust possibily providing an ACTUAL additional bump.
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Old 10-24-2012, 06:49 PM   #9
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So will the 1LE equipped SS dyno with more torque?
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Old 10-24-2012, 06:50 PM   #10
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It's clear to me that GM didn't SAE recertify the 2013 cars with electric steering and NPP?
HA...dam you! I just jumped to the end and replied. HA
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Old 10-24-2012, 07:17 PM   #11
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So will the 1LE equipped SS dyno with more torque?
Remains to be seen. Will definitely be interesting to see.

For what it's worth - it absolutely feels and performs more quickly than an SS. But it's a matter of smart engineering vs. just adding more power.
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Old 10-24-2012, 07:33 PM   #12
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Remains to be seen. Will definitely be interesting to see.

For what it's worth - it absolutely feels and performs more quickly than an SS. But it's a matter of smart engineering vs. just adding more power.
Besides, the only numbers that matter are at the finish line, not at the dyno.
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Old 10-24-2012, 07:48 PM   #13
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Seems to be some confusion about the 3.91 gears. Along with the change in the rear end to 3.91 gears, the 1LE also gets different transmission ratios making overall performance in each gear (1-6) similar. I think the main differences will be seen in 2nd, 3rd and 4th for increased road course performance. Someone with internet skills can probably link to the gear ratios and speed at redline info for each gear from another thread.

Putting 3.91 gears in a standard SS would make much more of a torque multiplying type effect at the wheels that some are talking about.
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Old 10-24-2012, 07:59 PM   #14
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Yup! +1. Can't forget the transmission itself, it was changed, too.

The lower gears are a tad shorter overall, but more importantly, better-matched to a track environment versus the street.

The higher gears, notably 5th and 6th...actually end up taller than an SS overall...engine spins slower, could see a fuel-economy benefit there...
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