Cadillac CTS-V - Something I must have missed about the ZL1

I know this isnt the Camaro section but we do a fair amount of road racing here so this might be some info i dont think people are aware of.

ZL1 track times so far:
2:52:4 at VIR
Its as fast as a KTM XBow and faster then the following. GT-R, Z06 with the Z07 package, LP670-4 Murci, 430 Scud, GT3 RS, etc
http://www.caranddriver.com/features/lightning-lap-2012-feature-sortable-times-complete-lightning-lap-times-2006-to-2012-page-8

Vid- http://www.youtube.com/watch?v=jbSkeFwn5xY

7:41.27 at Ring
The list of cars it beat there is insane.
http://en.wikipedia.org/wiki/List_of_N%C3%BCrburgring_Nordschleife_lap_times
Vid- http://www.youtube.com/watch?v=LWFP6LM-_q8


This seems to be a very very well engineered vehicle. If the Gt500 can move like this then we are in for a wild summer.

2013 GT500 will OWN the the ZL1.

My boy got a brand new ZL1 and sent it straight to the shop from the dealer. Put a cam in it, SC pulley, UD pulley, intake, full exhaust and tune and left it with me last weekend with 400 miles on the clock to break it in while he was gone. I have a vid of it on my phone. It's nasty fast! Lol and they still have some minor tuning to touch up on so it was setup really conservative. Still wicked fast and super smooth!

2013 GT500 will OWN the the ZL1.

if you mean in a straight line, then thats fine.... im sure you can make the 5.0 OWN a ZL1 easily.

but around corners on full tracks i dunno. I would like to see it though, just wonder why Ford hasnt mentioned a ring time since they have been at the ring testing since last June. Just the hp and top speed, while nice that isnt enough to buy a performance/ sports car for.

Not bad for 4100 lb car.

... UD pulley ...I think you mean OD pulley.



if you mean in a straight line, then thats fine.... im sure you can make the 5.0 OWN a ZL1 easily.

but around corners on full tracks i dunno. I would like to see it though, just wonder why Ford hasnt mentioned a ring time since they have been at the ring testing since last June. Just the hp and top speed, while nice that isnt enough to buy a performance/ sports car for.Agree.

GM must've done a bunch of effort getting the ZL1 to corner like that. Horsepower has its limitations even on the Ring, and the Camaro seems to have plenty enough to git 'r done.

I'm just repeating what he told me he had done so maybe i misunderstood what he said but it had an aftermarket billet crank pulley which is what I thought was the under drive pulley?

I think you mean OD pulley.



Agree.

GM must've done a bunch of effort getting the ZL1 to corner like that. Horsepower has its limitations even on the Ring, and the Camaro seems to have plenty enough to git 'r done.


UD crank pulley... if its setup like a lightning/cobra there is a cage that the blower pulley is threaded onto and driven by the crank pulley...

Something isn't right there the c6 z06 with z07 options should be significantly faster around VIR. Either GM's test drivers are crazy fast(assume this to be true) compared to C&D drivers or the z06 was having a off day during lightning lap.

No idea... i would imagine the Gm engineers might be looking to push the car harder then a drive who is hired by a magazine

UD crank pulley... if its setup like a lightning/cobra there is a cage that the blower pulley is threaded onto and driven by the crank pulley...

I'm just repeating what he told me he had done so maybe i misunderstood what he said but it had an aftermarket billet crank pulley which is what I thought was the under drive pulley?I say that since I think of the SC pulley as the pulley driving the shaft into the SC and by changing to a smaller diameter you gain boost. On the other hand, an OD crank pulley will increase the revs to the SC whereas an UD will reduce them. I'm thinking my MP-112 setup when I say this, so I'm just guessing beyond that, so could be dead wrong.

Back to the main topic, I watched both of those vids, and the GT500 better bring all of it if it's going to contest that ZL1. That is one outstanding car! I mean, squealing the tires while cornering at 101 MPH is some serious stuff. Wish I could drive like that. :hail:

No way the mustang will be able to duplicate that at the ring. I'd take the ZL1 all day over the mustang.

An underdrive pulley slows the pulleys while lowering resistance of the belt drive to free up HP from parasitic loss on NA motors.

An overdrive pulley increases the speed of the accessory and adds a little more resistance to the belt system. On a S/C setup this is more than compensated for in the form of higher boost pressures. An overdrive pulley can also be used for alternators to either compensate for an underdrive crank pulley to maintain voltage levels, or to increase alternator output for high demand applications.

No way the mustang will be able to duplicate that at the ring. I'd take the ZL1 all day over the mustang.

Like to see Ford make an effort and put all the performance mustangs around the ring. I think the new GT500 keeps up because of the final part being a very long straight but it would be a one heck of a violent ride with a solid axle...

VIR is mostly straights... I could see the mustang doing well there.

That nurburgring lap time... thats not bad at all.

if you mean in a straight line, then thats fine.... im sure you can make the 5.0 OWN a ZL1 easily.

but around corners on full tracks i dunno. I would like to see it though, just wonder why Ford hasnt mentioned a ring time since they have been at the ring testing since last June. Just the hp and top speed, while nice that isnt enough to buy a performance/ sports car for.

Ford won't post a video yet because they can't figure out how to set up the Bilstein shocks. An editor reported that the ride was so rough that it blurred his vision and rattled his teeth!

An underdrive pulley slows the pulleys while lowering resistance of the belt drive to free up HP from parasitic loss on NA motors.

An overdrive pulley increases the speed of the accessory and adds a little more resistance to the belt system. On a S/C setup this is more than compensated for in the form of higher boost pressures. An overdrive pulley can also be used for alternators to either compensate for an underdrive crank pulley to maintain voltage levels, or to increase alternator output for high demand applications.

With an O/D pulley a 10% you would almsot always have 10% UD accessory pulleys so that only the S/C is being overdriven

These newer cars that come with the blower have a dedicated blower drive. That means that you can underdrive the crank and overdrive the blower. It's not jus a single belt.

Something isn't right there the c6 z06 with z07 options should be significantly faster around VIR. Either GM's test drivers are crazy fast(assume this to be true) compared to C&D drivers or the z06 was having a off day during lightning lap.

VIR has a lot of configurations, maybe it's not the same setup, or not run the same way (standing start vs rolling, etc) as Car and Driver does. GM's time around the 'ring with the ZL1 is about 20 seconds behind GM's Z07 time.

Still, it does seem like a cool car. And the marketing/videos suggest you could beat on it all day long and it would just take it. I just wish they didn't have such a cramped interior and poor visibility. I also wish a Camaro never weighed 4,100 lbs, but I could get over that if it were comfortable inside.

Saw a sub 12sec 1/4 video today with just drag radials as only mod. Where were these engineers when they designed the v1. Seriously a soltice diff... Video is on autoblog.

Something isn't right there the c6 z06 with z07 options should be significantly faster around VIR. Either GM's test drivers are crazy fast(assume this to be true) compared to C&D drivers or the z06 was having a off day during lightning lap.

I would like to see a back to back comparison between the Z06 and the ZL1 at VIR on the same day. Chevrolet also ran the ZR1 at the same test day and it put down 2:45.6 compared to the ZL1's 2:52.4

The recent Nurburgring runs with factory drivers is a better indicator of overall track prowess: ZR1=7:19.63, Z06=7:22.68, ZL1=7:41.27. The Z06 was only 3 seconds off the ZR1's time on a 12.9 mile course!

These are some crazy fast times, I'm interested to see if the new GT500 can best the ZL1 in the track. We all know it will own it in the drag strip, but maybe not here...

Stock tires, high 11's.

http://www.autoblog.com/2012/05/04/2012-chevrolet-camaro-zl1-runs-quarter-mile-in-11-93-seconds/

Saw my first ZL1 at the track the other night. Teenage girl driving it. She said her daddy bought it for her. Not racing. Must be nice. My dad bought me a Cavalier...

The recent Nurburgring runs with factory drivers is a better indicator of overall track prowess: ZR1=7:19.63, Z06=7:22.68, ZL1=7:41.27. The Z06 was only 3 seconds off the ZR1's time on a 12.9 mile course!
Interestingly the CTS-V did a 7:58 with a very similar drivetrain, suspension, and curb weight to the ZL1. So GM did pretty well to find another 17 seconds vs the V.

I can't imagine it is down to Goodyear tires, but maybe Goodyear is finally back in the game like they were 10+ years ago when the F1 tires first came out.

Saw my first ZL1 at the track the other night. Teenage girl driving it. She said her daddy bought it for her. Not racing. Must be nice. My dad bought me a Cavalier...

Don't ya just love those people?

Saw my first ZL1 at the track the other night. Teenage girl driving it. She said her daddy bought it for her. Not racing. Must be nice.

I would've... :naughty:

Don't ya just love those people?

Yeah I love it when parents make enough money to buy their kid(s) a nice car as long as the kid appreciates it. You sound bitter. :jest: Why you mad because she drivers a better car than you do...step your game up son!

Yeah I love it when parents make enough money to buy their kid(s) a nice car as long as the kid appreciates it. You sound bitter. :jest: Why you mad because she drivers a better car than you do...step your game up son!

You sound even more bitter, comparing this girl to yourself, saying, "My daddy bought me a Cavalier."

Interestingly the CTS-V did a 7:58 with a very similar drivetrain, suspension, and curb weight to the ZL1. So GM did pretty well to find another 17 seconds vs the V.

I can't imagine it is down to Goodyear tires, but maybe Goodyear is finally back in the game like they were 10+ years ago when the F1 tires first came out.

My friend is an engineer at gm and he said the big differnence between the V and the zl1 is the better tires and the mr3 shocks compared to the mr2 on the V and zr1.

VIR has a lot of configurations, maybe it's not the same setup, or not run the same way (standing start vs rolling, etc) as Car and Driver does. GM's time around the 'ring with the ZL1 is about 20 seconds behind GM's Z07 time.

Still, it does seem like a cool car. And the marketing/videos suggest you could beat on it all day long and it would just take it. I just wish they didn't have such a cramped interior and poor visibility. I also wish a Camaro never weighed 4,100 lbs, but I could get over that if it were comfortable inside.
They ran the lightening lap config used in the car and driver tests, which i think is harder then just going down the straight. The camaro is a pretty comfy vehicle to drive.

Don't ya just love those people?

nothing wrong with parents who have done well enough to buy what ever they want for their kids.


i wish my folks would have bought me something sweet like that.

if you mean in a straight line, then thats fine.... im sure you can make the 5.0 OWN a ZL1 easily.

but around corners on full tracks i dunno. I would like to see it though, just wonder why Ford hasnt mentioned a ring time since they have been at the ring testing since last June. Just the hp and top speed, while nice that isnt enough to buy a performance/ sports car for.

Will be interesting to see the times the GT500 puts down on a road course. As we all thought, it kills the ZL1 at the drag strip.

GT500
1/4 mile: 11.6 @ 125.7
0-60: 3.5

http://www.motortrend.com/roadtests/coupes/1205_2013_ford_shelby_gt500_first_test/

2013 GT500 will OWN the the ZL1.

Even if it does it will never be near as sexy. Ford hasn't had a good looking car since the 427 Cobra.

Will be interesting to see the times the GT500 puts down on a road course. As we all thought, it kills the ZL1 at the drag strip.

GT500
1/4 mile: 11.6 @ 125.7
0-60: 3.5

http://www.motortrend.com/roadtests/coupes/1205_2013_ford_shelby_gt500_first_test/

All this and 24 highway mpg avoiding the guzzler tax, car is insane mix of old and new school tricks. I wonder how 6th gear will hold up with the tall gearing causing very low 6th gear rpm <1500 at highway speeds and the known issues with tremec used this way.

I love how the article mentions that the transmission still can't "be rushed", lol. I think we are all winners with the performance car wars going on.

Even if it does it will never be near as sexy. Ford hasn't had a good looking car since the 427 Cobra.

This is a matter of opinion, but I beg to differ... Besides the 69-73 Camaro's, the Mustang has looked hands down better than the Camaro through the years, especially the new Camaro...

I respect this car, but I would take a GT500 over a ZL1 any day of the week. The 5th gen Camaro is fugly & too bulky IMO... No disrespect to anybody that owns one, but they are just not my cup of tea.