: CTS 3.6L vs. 300C Hemi AWD



craigtone@centurytel
04-17-09, 08:53 PM
I can tell you one thing ... the Caddy accelerates faster! :thumbsup:

V-Eight
04-18-09, 02:19 AM
How does it fare on a longer stretch?

craigtone@centurytel
04-18-09, 09:33 AM
Dunno ... we never pushed it that far ...

V-Eight
04-18-09, 02:40 PM
That's pretty sweet, imagine how the V8s would do against it :)

Gristle Boy
04-18-09, 03:14 PM
Wouldn't AWD vs AWD be fairer? No fan of the 300, just sayin'.:thumbsup:

Rodya234
04-18-09, 03:39 PM
^Yes it would, because AWD is slower off the line then RWD. The Cadillac may have been matched if it had been AWD.

V-Eight
04-18-09, 09:20 PM
^Yes it would, because AWD is slower off the line then RWD. The Cadillac may have been matched if it had been AWD.

I thought AWD was faster due to increased traction, which is why a GTR can beat a ZR1 off the line, although it is soon overtaken

craigtone@centurytel
04-18-09, 09:44 PM
^Yes it would, because AWD is slower off the line then RWD. The Cadillac may have been matched if it had been AWD.

No doubt! When I dusted him I was wondering how that happened ... then when he rolled past I saw the AWD badge on the back ... mystery solved!

Better traction yes, but also about another 70% of rolling mass than a RWD.

V-Eight
04-18-09, 10:35 PM
Isn't it better that more of the wheels are receiving power than having to be pushed along though?

Rodya234
04-19-09, 05:35 AM
AWD is typically heavier, and since the weight shifts to the rear wheels when accelerating, the benefit of four driven wheels doesn't really appear. Until you get to the turns that is; AWD has much better grip on winding roads then any other layout. Also the Chrysler does not have a locking center differential, so it was most likely braking the rear wheels (to prevent spin) and sending more power to the front.

About the GT-R: its so fast off the line because it has a very good launch control program. The second that car launches, its at maximum power output.

V-Eight
04-19-09, 02:13 PM
About the GT-R: its so fast off the line because it has a very good launch control program. The second that car launches, its at maximum power output.

Makes sense. Found this interesting:

Well there are a number of things too look at. With all wheel drive you have 4 wheels that CAN put power to the road. However most people do not understand that as long as the wheels are not spinning you often only have power to 2 wheels. As the weight of the car changes so does the power to the wheels. The computer and the transmission are designed to provide the best balance of power, and traction. now with that said let me also say that the more moving parts you have in a transmission the more power you lose to keep them all working and moving. I'll use a manual transmission to help keep things equal in this analogy. With all wheel drive you have a transmission in side the transmission you would have a differential for the front wheels, the gears to go forward and reverse with an input shaft to connect to the clutch and motor. Along with that you have an output shaft to connect the rear differential to the rear wheels you also have to 2 half shafts for the 2 front wheels. Are you keeping track? So far we have (in complete assemblies) 6 parts in 1 transmission all demanding power. The output shaft is connected to a drive line (takes power to turn it) which then connects to the rear differential. There are 2 more parts. For 8 parts in total demanding power from the engine. on the rear wheel drive car you have the transmission with the gears for forward and reverse, the input shaft for the motor to turn the transmission and then an output shaft to the rear diff, (3 parts) the drive line then goes to the rear diff 2 parts. For a total of 5 moving parts. Ok so where is this all going? If you have 300 HP and you where to measure the HP at the wheels and you measured all 4 wheels you would find your total power to be (this is just a GUESSTAMATE) 250 HP. If you where to conduct the same test on the rear wheel drive car testing just the 2 wheels you would find your power to be around 280. Thatís 30 more HP to the rear wheel drive car. So does this mean that the rear wheel drive car will get a better ET at the track? Maybe, there are other factors to consider there as well. If you take the 280 horse and split it even across the 2 wheels that put 140 HP at each wheel. The possibility of the wheels breaking loose and losing traction is pretty good. If you take the 250 and send it across the 4 wheels thatís 62.5 HP per wheel. Less likely you will lose traction and have a better ET. So how does it matter? Well it comes down to tires and driver. If you have an experienced driver who can keep the tires hooked up. It's a fare bet that the rear wheel drive will beat the AWD down the track. However if the Rear wheel car where to (at any point in the race) lose traction on the rear. The AWD would win hands down. I hope this was educational and it gave you the answer you where looking for. Happy REVING!

Rodya234
04-19-09, 04:04 PM
^the above is very true, but I wouldn't count on the RWD losing traction off the line, unless you were lucky. A lot of RWD cars, especially sports cars, have a limited slip differential.

V-Eight
04-19-09, 04:25 PM
Yeah, I think its sort of the same thing with planes. Computers can do some things, but nothing can beat a driver's intuition and experience. I think this may even hold true for AWD and corners.

craigtone@centurytel
04-19-09, 04:30 PM
Yeah, I think its sort of the same thing with planes. Computers can do some things, but nothing can beat a driver's intuition and experience. I think this may even hold true for AWD and corners.

Intuition - No ... Reaction Time - 100x Faster!

inurok
08-17-09, 06:54 AM
I can tell you one thing ... the Caddy accelerates faster! :thumbsup:

You were lucky because the Hemi even with awd would take your 1st gen cts. I have driven both and that hemi really moves. Anyway congrats on your win none the less. You would be surprised how many times another car thinks he is racing me and I just shift down and let em go by.