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Old 09-07-2013, 06:18 PM   #26
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Originally Posted by Arbgast View Post
What about a z28 with a supercharger?
Superchargers are made for brute force. The Z/28 is all about finesse. Think cleaver vs. stiletto.
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Old 09-07-2013, 07:35 PM   #27
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Sorry let me clarify...


I'm aware the spoiler is different from the normal SS/ZL1 spoiler

Al O. Said in the Leno interview there is a 'wicker bill' that attaches to the z/28 spoiler for increased downforce on certain tracks. Since it kinda looks like the spoiler on this z/28 looks a bit taller than the normal z/28 spoiler, I'm wondering if this z/28 has said attachment.

I'm picturing something like the spoiler on the zl1 carbon edition

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Old 09-07-2013, 07:50 PM   #28
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Why would they ruin a Z/28 by bolting on a supercharger?
ummm because 500 hp just isn't enough these days. of coarse there will be other mods as well. If you bought a new 70k+ camaro (estimated) would you want gt500's and zl1's smoking you at every light??? I know....the z28 is a track car.
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Old 09-07-2013, 08:21 PM   #29
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ummm because 500 hp just isn't enough these days. of coarse there will be other mods as well. If you bought a new 70k+ camaro (estimated) would you want gt500's and zl1's smoking you at every light??? I know....the z28 is a track car.
Wouldn't matter what engine was in the Z/28, they'd still be smoking me at every light as I would not be "racing" against someone on the street.
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Old 09-07-2013, 08:27 PM   #30
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Originally Posted by zl1fun View Post
ummm because 500 hp just isn't enough these days. of coarse there will be other mods as well. If you bought a new 70k+ camaro (estimated) would you want gt500's and zl1's smoking you at every light??? I know....the z28 is a track car.
Apples and oranges.
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Old 09-07-2013, 08:28 PM   #31
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ummm because 500 hp just isn't enough these days. of coarse there will be other mods as well. If you bought a new 70k+ camaro (estimated) would you want gt500's and zl1's smoking you at every light??? I know....the z28 is a track car.
Men, with a sense of responsibility to their community and fellow citizens take it to the track. So, I don't give a sh*t about any other car sitting at a stop light and I sure as hell don't want to be anywhere near a dickhead that wants to "smoke me" at a stop light on a public road. Of "coarse" any testosterone-addled douchebag that practices racing on public streets has earned the opportunity to have their car confiscated and auctioned off by the local po-po.

Driving in a straight line is boring. What I do enjoy mightily is honing my skills and pitting my ability against other drivers at a track event.

So, yes, you figured it out in your last sentence, the Z/28 is a track car, where a high-revving NA engine is usually the right choice.

Tell us about your left-seat road course experience?

Last edited by Zfatuated; 09-07-2013 at 08:42 PM.
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Old 09-07-2013, 08:31 PM   #32
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Originally Posted by zl1fun View Post
ummm because 500 hp just isn't enough these days. of coarse there will be other mods as well. If you bought a new 70k+ camaro (estimated) would you want gt500's and zl1's smoking you at every light??? I know....the z28 is a track car.
This thing doesn't need as much HP as the ZL1 because it won't be a heavy pig like the ZL1. The Z/28 isn't about straight line acceleration. It's about running a road course as fast as possible. Bolting on a supercharger with all it's extra weight will ruin the handling they developed with the Z/28.
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Old 09-07-2013, 08:40 PM   #33
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Originally Posted by Justin Moreno View Post
Sorry let me clarify...


I'm aware the spoiler is different from the normal SS/ZL1 spoiler

Al O. Said in the Leno interview there is a 'wicker bill' that attaches to the z/28 spoiler for increased downforce on certain tracks. Since it kinda looks like the spoiler on this z/28 looks a bit taller than the normal z/28 spoiler, I'm wondering if this z/28 has said attachment.

I'm picturing something like the spoiler on the zl1 carbon edition

Look closely you can see how the Z/28 extension looks in the picture (see the link I provided above).
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Old 09-07-2013, 09:07 PM   #34
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Great videos thanks for sharing
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Old 09-07-2013, 10:03 PM   #35
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I don't know what they've done to the Z/28's exhaust but not only does it sound different from the Vette but it sounds quite a bit better! Man what a gorgeous sound!


The Z/28 has the LS7 or 427C.I. or 7.0 Liter engine (which ever designation you would like to use)with dual mode exhaust, while the new C7 has the new LT1 or basically a LS3, 6.2 Liter with direct injection and variable valve timing with dual mode exhaust. The LT1 is making 460 HP and 465 Torque in the C7. So that's why the Z/28 sounds better cause the LS7.
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Old 09-07-2013, 10:08 PM   #36
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The Z/28 has the LS7 or 427C.I. or 7.0 Liter engine (which ever designation you would like to use)with dual mode exhaust, while the new C7 has the new LT1 or basically a LS3, 6.2 Liter with direct injection and variable valve timing with dual mode exhaust. The LT1 is making 460 HP and 465 Torque in the C7. So that's why the Z/28 sounds better cause the LS7.
I promise you he knows this...
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Old 09-07-2013, 10:22 PM   #37
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Originally Posted by V6 LS Supercar View Post
The Z/28 has the LS7 or 427C.I. or 7.0 Liter engine (which ever designation you would like to use)with dual mode exhaust, while the new C7 has the new LT1 or basically a LS3, 6.2 Liter with direct injection and variable valve timing with dual mode exhaust. The LT1 is making 460 HP and 465 Torque in the C7. So that's why the Z/28 sounds better cause the LS7.
I'm used to hearing V8's. In fact I was out at the speedway today driving in an HPDE event and heard everything from Hondas to Ferraris, Porsches, Lambos and everything in between. There's a throaty, tubular tonal frequency in the Z/28 exhaust that I don't hear elsewhere. It really sounds good. The Z06's and ZR1's at the track today didn't have that sound. Between the tri-y headers and piping, Stielow and team have done something with either the pipe size, crossover, mufflers or something to give it that great tone. Can't wait to actually hear one of these in person.

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I promise you he knows this...
Hey, it was good info anyways.
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Old 09-07-2013, 10:27 PM   #38
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I'm used to hearing V8's. In fact I was out at the speedway today driving in an HPDE event and heard everything from Hondas to Ferraris, Porsches, Lambos and everything in between. There's a throaty, tubular tonal frequency in the Z/28 exhaust that I don't hear elsewhere. It really sounds good. The Z06's and ZR1's at the track today didn't have that sound. Between the tri-y headers and piping, Stielow and team have done something with either the pipe size, crossover, mufflers or something to give it that great tone. Can't wait to actually hear one of these in person.



Hey, it was good info anyways.
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Old 09-07-2013, 11:20 PM   #39
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more info pointing to this being part of the record run. Single driver ...first time I've seen this

notice the body lift on accel...more than I would have thought. Is the side skirt trim there? it looks like it is not?


a confidence tap settles her down


a silver roof?….the first time this car (I think it is the same car based only on the paint job) did not have a silver roof….the black gaffers tape is to hold down the wires to the data/gps antennas….I think there are 3 and a cellular antenna on the right rear also possibly a suction mount on the upper right of the windshield for a gopro.


you can see the 2 black dots next to the factory antenna..these are likely wired gps/data antennas


and a white 3rd data antenna


the added wicker on the rear spoiler



now is the time…cool weather for hp but not too cool surface temps…they are working hard.
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Old 09-08-2013, 12:36 AM   #40
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It would sound so much better if you removed the mufflers.
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Old 09-08-2013, 12:50 AM   #41
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Inspector Tintops ha bravo
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Old 09-08-2013, 06:18 AM   #42
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the Z/28 sounds good :-)
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Old 09-08-2013, 10:51 AM   #43
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I'm probably one of the few that is actually planning on putting a power-adder on my Z/28 after I take delivery. Of course, I'm going turbo versus supercharger.
Why?
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Old 09-08-2013, 11:22 AM   #44
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I'm probably one of the few that is actually planning on putting a power-adder on my Z/28 after I take delivery. Of course, I'm going turbo versus supercharger.
You might want to wait until you get it and drive it before you do something like that. This thing is being very fine tuned and developed by some incredibly talented performance people. There's a good chance that right out of the box it's performance ability will exceed yours so before you start upsetting the power balance, drive it first. On the track. At the max your skill can handle. Then have a pro instructor drive it with you in the passenger seat and see if there's a difference. If there is (which there probably will be) then spend some money going to a reputable performance driving school like Bondurant's so you can learn how to really use what the Z/28 is already capable of. It's that kind of car.

How many road course tracks are available to you where you can go faster than the Z/28 will already be able to go? The shocks, damping, sways, handling balance is currently being fine tuned to the power the car already has; upsetting that balance is something I'd do very cautiously and only if I really knew how to improve it (which I don't). It also means having the testing facilities to do so (which I don't) and the money to burn through tires, brakes and gas while rebalancing the car after adding more power.

Unless you seriously know what you're doing, mod this car VERY carefully when it comes to power and handling. This car isn't being developed by amateurs, nor is it being balanced/tuned for street use so the standard things you may have done for your SS won't apply here.
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Old 09-08-2013, 11:46 AM   #45
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Thanks for the advice. Why would I do it? That's simple. I want more power available from the car than what it will come with from the factory. My Z/28 will see street, track and, very likely even a drag strip if the mood hits me. My car will not be a garage queen, track/HPDE-only vehicle.

Yes, I know that it may not be what the car was specifically designed/engineered for, but that really does not matter to me.
Just know that the Z/28 won't come with the HD rear end or half shafts so you probably will have to change that as well. Adding that much weight will throw off the suspension tuning.

Why not just mod your ZL1?
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Old 09-08-2013, 11:59 AM   #46
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You might want to wait until you get it and drive it before you do something like that. This thing is being very fine tuned and developed by some incredibly talented performance people. There's a good chance that right out of the box it's performance ability will exceed yours so before you start upsetting the power balance, drive it first. On the track. At the max your skill can handle. Then have a pro instructor drive it with you in the passenger seat and see if there's a difference. If there is (which there probably will be) then spend some money going to a reputable performance driving school like Bondurant's so you can learn how to really use what the Z/28 is already capable of. It's that kind of car.

How many road course tracks are available to you where you can go faster than the Z/28 will already be able to go? The shocks, damping, sways, handling balance is currently being fine tuned to the power the car already has; upsetting that balance is something I'd do very cautiously and only if I really knew how to improve it (which I don't). It also means having the testing facilities to do so (which I don't) and the money to burn through tires, brakes and gas while rebalancing the car after adding more power.

Unless you seriously know what you're doing, mod this car VERY carefully when it comes to power and handling. This car isn't being developed by amateurs, nor is it being balanced/tuned for street use so the standard things you may have done for your SS won't apply here.
All very true, but you know that firms such as Lingenfelter and Hennessy will be releasing turbo packages for the Z/28 asap, just as they have for the Z06. Even at a low 5-6psi, that's 150hp that's passing power in between turns 5 and 6. I agree with you on the braking and suspension components/hardware...probably not a lot of room for improvement there.
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Old 09-08-2013, 12:06 PM   #47
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No need for forced induction. LS7s respond well to all of the standard NA power adders, real long tube headers, ported heads, and a nice cam. I'm real interested to see how the power train holds up or if improvements have been made. I'm talking about clutch and the hydraulics, tranny syncros, diff, and half shafts. And the dam axle cv boots. I've had issues with all of those.
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Old 09-08-2013, 12:24 PM   #48
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Sounds great
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Old 09-08-2013, 02:50 PM   #49
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I don't know what they've done to the Z/28's exhaust but not only does it sound different from the Vette but it sounds quite a bit better! Man what a gorgeous sound!
Yes it has a very deep almost "true" big block sound with less rasp then the Z06...IMO
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Old 09-08-2013, 08:14 PM   #50
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I don't think that's the case here. Or even in the Z/28 threads. The ZL1 is a great car. It does it ALL. We regulars in the Z/28 threads have wanted a car that was track oriented "only". That's the only reason we're not more focused on the ZL1.
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