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Camaro Z/28 Forum - Z/28 Specific Topics Discussions related to the 5th gen Camaro Z/28 model

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Old 03-28-2013, 09:53 PM   #26
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Originally Posted by daveagogo1 View Post
Last time i checked my SS doesn't have these either yet is somehow manages to get down the 1320 over and over just fine.

Z/28 with 7000rpm redline minus the same clutch packs and 19" wheels will walk the ZL1 with a driver.
Just watched the Car Show video again, the emcee said about the Z/28..."...It's a track car, not designed for straight line 0-60, 1/4 Mile, but you certainly can do that if you want....."

Just FYI....
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Old 03-28-2013, 10:00 PM   #27
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...the car if one reads the specific design behind the engineering involved is soley set up for short to medium road course tracks. It will outturn and navigate it's way through corner's like there's no tomorrow. With a 7,100 RPM redline.
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Old 03-28-2013, 10:39 PM   #28
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Even though the ZL1 has better power to weight....the Z28 has better tires in back, better gearing and 300lbs less to get moving....I think the Z28 will be just as fast (or faster) than the ZL1 in the 1/4.

....as long as they don't neuter it with excessive torque management (like they did to the ZL1)
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Old 03-28-2013, 11:39 PM   #29
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....I am sitting back, just enjoying the proliferation of technology and all that's good with Camaro right now. What a great time to be a Camaro enthusiast, and an old Camaro person from the dated past on top of it...like as in the difference from the horse and buggy to the space shuttle and having experienced the difference between them....<well, sort of speak>
Might you Be interested in a game of shuffle board? Or perhaps considering providing a Z/28 about a two car jump to even things out? Really now, the ZL1 has a little brother to protect in the 1/4 mile contests!
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Old 03-28-2013, 11:53 PM   #30
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I'm gonna guess owners will be able to get them into the 11.3's stock, with enough practice some drivers can get every last horsepower working perfectly. Can't wait till people start taking delivery and we get some real world info!
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Old 03-29-2013, 12:18 AM   #31
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There is a reason you don't see funny cars at road courses, and the same would be true of a Z28 at the dragstrip. The Z28 does have the advantage of not embarassing itself at the strip, unlike the funny car that wouldn't finish the first lap at a road course.
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Old 03-30-2013, 01:28 AM   #32
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The last stock C6 ZO6 Vett I saw on a dyno put down 437rwhp. Is that really enough to put a 3850 lb. car in the 11s?
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Old 03-30-2013, 11:02 AM   #33
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As more info on the z28 comes to light, it would appear the zl1 is best suited for street/strip and mods, with the stronger driveline. I was going to see about getting into a z28, but not now.......the purpose of the z28 is a bit too specific for my needs.......GM means what they say now.......not recommended for drag strip means just that........it makes sense , because GM is not going to put out two different cars back to back that directly compete with each other........DIFFERENT CARS , DIFFERENT PURPOSE
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Old 03-30-2013, 05:55 PM   #34
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The Z28 is a 12 second car just like the ZL1, A few might see 11's but mid to low 11's seem unlikely.
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Old 03-30-2013, 06:14 PM   #35
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Headers, a cam, drag radials and some good tuning....the Z28 will run wild in the 1/4!
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Old 03-30-2013, 06:21 PM   #36
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I see the z28 being right there with the zl1, 12.1 or 12.0 quarter times.
I think the zl1 will definitely be the better street car. I would not be
surprised if they refresh the LSA some and both the zl1 and z28 dip into
the 11.9 range off the showroom floor.

The z28 track times will in line with the z06 with z07 track pack. The z28
will probably cost $65-70k. 1lE is still where it's at for me, I hope they don't
neuter it, I may just get a '13 and be done, I love the car anyway.
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Old 03-30-2013, 07:20 PM   #37
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Quote:
Originally Posted by Ron66Vette&10SS View Post
Even though the ZL1 has better power to weight....the Z28 has better tires in back, better gearing and 300lbs less to get moving....I think the Z28 will be just as fast (or faster) than the ZL1 in the 1/4.

....as long as they don't neuter it with excessive torque management (like they did to the ZL1)
I doubt it will be faster than the ZL1 in the 1/4. Its a track car not a drag car. Also we have no ideal what the "final" gearing would be. People thought the 1LE gearing was much lower than a SS, until they found that GM had changed the trans ratios effectively making the gearing almost the same. So what this means is that even though the Z/28 has 3:91's, the ZL1 may have lower gearing overall. As far as speed, the Z/28 will be a track dominator, but on the 1/4 no way. I remember before the ZL1 was raced on the 1/4 everyone was saying how fast it was, then the actual 1/4 mile runs began, and they did disappoint.

One thing I can bank on it that the Z/28 will be fast around a track, but in the 1/4, I would put my $$$$ on the ZL1. I could be wrong but time will tell.
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Old 04-01-2013, 11:10 AM   #38
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Quote:
Originally Posted by 74z28 View Post
The last stock C6 ZO6 Vett I saw on a dyno put down 437rwhp. Is that really enough to put a 3850 lb. car in the 11s?
With slicks or drag radials high 11's is doable. On stock tires it most likely would not do it. UT right da, driver it could happen.

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Old 04-01-2013, 11:35 AM   #39
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...my take. Milford proving grounds yields a 3 second gain of the Z/28 over the ZL1 per lap as reported by Chevy. I have no idea what the layout is. My thoughts are. A short track, with many tight turns and short straightaways will give the Z/28 an advantage. A bigger track, with wider corners/radiuses and longer straightaways will give the ZL1 the advantage. Inherently, these cars are not designed from the get go for the quarter mile.
Milford proving grounds is a 2.9 mile road course with 20 turns......

Search Milford MI on Google maps, use the satellite option and look about 2 miles to the left of Milford. You will see numerous tracks layouts with building......You are now looking at the GM proving grounds......
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Old 04-01-2013, 11:47 AM   #40
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I see the Z28 running in the high 11's all day without having any heat soak problems of a blower. Just my .02 cents
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Old 04-01-2013, 11:50 AM   #41
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I would bet the Z/28 would put up a respectable 1/4 time, but like many others have said, this car is meant to dominate the twisties, not be a 1/4 missile
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Old 04-01-2013, 12:35 PM   #42
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Originally Posted by 16floz470ml View Post
Saw this on GM Launch site today.

How fast will the Z/28 be in 0-60? In the quarter mile?
The true performance of the Z/28 will be measured in lap times, not straight-line performance. To preserve the track-focused nature of the Z/28, it doesn’t have the strengthened differential and half shafts of the ZL1, and is not recommended for drag racing. The new Z/28 is designed to be the most track-capable Camaro ever produced by the factory.
What does this really mean? Will you twist the driveshaft or have excessive wheel hop if you try a high rev clutch dump?
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Old 04-01-2013, 01:15 PM   #43
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Originally Posted by daveagogo1 View Post
Last time i checked my SS doesn't have these either yet is somehow manages to get down the 1320 over and over just fine.

Z/28 with 7000rpm redline minus the same clutch packs and 19" wheels will walk the ZL1 with a driver.
Your ss will also not be warrantied if you blow a piston or drop a drive shaft after a hard launch at the track
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Old 04-01-2013, 04:50 PM   #44
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I am going to say 11.9 to 12.0. 300lbs is significant. Look at 2012 GT500 vs 2012 Boss 302. 550hp vs 450hp similar times.

the car will have a bit friendly torque crurve and revs high.
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Old 04-01-2013, 05:37 PM   #45
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Questions I have:

Will the Z/28 incorporate the ZL1 "no lift shift" algorithms used in the ZL1 drag setup?

Will the Z/28 have 5 PTM Modes like the ZL1? Remember Mode 5 was for "prepped drag strip tracks"....

We have seen something saying the axles are not as strong as the ZL1's and not intended for drag racing. Is this from a legit source? As we remember, GM touted in a video that they launched the ZL1 with a clutch dump 1,000 times in a row with no breakage.

Does the Z/28 have the same rear axle housing as the ZL1 (which is 200 pounds heavier than an SS diff)?

I have no doubts the LS7 is very capable of 1/4 mile runs equal to a ZL1. It sounds like it is being denied that glory from a corporate positioning.

That brings me to another question, what might be the differences in the clutch itself from a ZL1?

We shall learn as we go. It does look to me that both are capable of sub 12 times with small tweaks but it also appears the availability of a LS7 Z/28 will be limited to a pretty short time span before the next Gens are exposed.

And with the next Gens being somewhere at a guess of about 3300-3400 lbs (not much more than current Vette weight), the next Gen 6 will undoubtedly be formidable and possibly outlandish never heard of factory missiles. I believe GM is using the next two years (and have been using the last two years) to develop a MONSTER Gen 6 that will make current ZL1 and Gen 5 Z/28 owners think about trading in! Hell, the molds are probably being made already! While all of us have our attention on the "refresh".... LOL
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Old 04-01-2013, 06:34 PM   #46
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Questions I have:

I have no doubts the LS7 is very capable of 1/4 mile runs equal to a ZL1. It sounds like it is being denied that glory from a corporate positioning.


We shall learn as we go. It does look to me that both are capable of sub 12 times with small tweaks but it also appears the availability of a LS7 Z/28 will be limited to a pretty short time span before the next Gens are exposed.
I agree with you, but I think the getting into the 11's will take more than a few tweaks. GM has already stated its a track car, they never mentioned drag racing with it.

I know weight is a great factor as my old 45th LS3 M6 vert felt quite a bit slower than my friends LS3 M6 coupe as there is a few hundred pound difference. The ZL1 feels noticeably quicker than the SS coupe, but its got 150 more horsepower and 3:73's opposed to 3:45's. Mind you the SS has a deeper 1st and 2nd (3.01 and 2.07) compared to the ZL1's (2.66 and 1.78).

The Z/28 will have about 75hp less HP and ftlbs of torque than the ZL1, but its a little lighter. I'm guessing the Z/28 will not have the same rear end as the ZL1 as weight was such an issue. A drag car needs a heavier diff than a track car as a drag car has to deal with the enormous torque at launch.
It will be a good race

Its anybody's guess but I'll bet the ZL1 takes the Z in the 1/4

Anyway you swing it, both cars as awesome cars, they are just designed for different purposes.
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Old 04-02-2013, 06:08 PM   #47
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I have seen bone stock Z06s run 10.70-10.80@128 at MIR in really good air...amazing because just 505hp vs LS9 powered ZR1 cars run 10.60@132 stock with drag radials. The LS7 is amazing and the gearing in the transmission of the ZR1 hurts the 1/4 mile performance. Lets say the Z28 is 800lbs heavier than the Z06 so we can add .8/8mph approximately to the best Z06 stock runs with perfect traction in great air. That extrapolates to 11.50-11.60@120 with very crude fudge factors assuming similar gearing to the Z06.
How many stock Z06s run 10.70-10.80s....not alot. On average they are 11.70-11.80 cars with a tire and an good driver. Regardless...I'm not sure why guys say the Z28 is down 75-80 hp, and why GM only rates it at 500hp. Wouldn't ya think with a factory CAI and CNC'd heads it would be closer to 530-540hp?
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Old 04-02-2013, 06:17 PM   #48
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Skipped everyones posts, but whatever.

More weight + more power = ZL1 win
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Old 04-03-2013, 08:19 PM   #49
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How many stock Z06s run 10.70-10.80s....not alot. On average they are 11.70-11.80 cars with a tire and an good driver. Regardless...I'm not sure why guys say the Z28 is down 75-80 hp, and why GM only rates it at 500hp. Wouldn't ya think with a factory CAI and CNC'd heads it would be closer to 530-540hp?
I've seen 11.3-11.7 out of a bunch bone stock. And some run in the 12's. Lol. Seen a ZR1 run multiple 12's@122-126.

We talked shit cs he started shit, challenged me and another 5.0 to run. This was his run right after. We both ran same lane right after. I ran a 10.6 letting out and buddy ran a 10.9 n/a. He left soon we ran.





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Old 04-03-2013, 09:27 PM   #50
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Some people might get 11.90's on a good run. Its still a 3800lb + car with 500 hp.
GT500 weighs the same with 662hp and 638 lb/ft torque and most run 11.70's stock But it still comes down to power to weight...so 11.3's-11.5's stock arent gonna happen unless GM's idea of 500+ hp is 550+ at the wheels
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