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View Poll Results: What's YOUR Ideal "Racy" Camaro? | |||
Make Mine a $50's-K LSA/MR ZL1 | 14 | 21.21% | |
Make Mine a Mid-$40sK LS7/Enhanced FE4 "Z/28" | 52 | 78.79% | |
Voters: 66. You may not vote on this poll |
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10-18-2011, 09:56 PM | #29 |
Too Many Great Choices
Drives: Grand Sport/Z07 Join Date: Jun 2009
Location: A Mountain Road
Posts: 7,454
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The LS7 is ready to win now. Your LS3 would take more time to ready. We want a 5Gen Z28.
Also a 6Gen Z28 will surely have a GenV DI engine. |
10-18-2011, 11:06 PM | #30 | |
Drives: 2014 RRM ZL1 M6 Join Date: Jul 2011
Location: IL
Posts: 659
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Quote:
The LS7 is way too expensive. Take a $38K 2SS. Add $7k (cost of LS7 over LS3). Add $6k in other upgrades (suspension, lighter wheels) as I suggested. Now you're at $51k. That gives you a 505HP Z/28 for $51k or a 580HP ZL1 for probably not much more. Wouldn't be surprised if the LS7 has gas guzzler tax on it too. |
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10-19-2011, 09:55 AM | #31 |
Too Many Great Choices
Drives: Grand Sport/Z07 Join Date: Jun 2009
Location: A Mountain Road
Posts: 7,454
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That's loaded. Start with a 1SS and your $6-7K less. Most Z28 customers will put performance ahead of luxury(2SS).
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10-19-2011, 12:13 PM | #32 | |
Drives: 2011 Camaro RS Join Date: Feb 2011
Location: Colorado Springs
Posts: 62
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Quote:
I understand the readiness of the LS7 as a N/A option that could be available, and I think it would be a fine option if it were built. However, I don't think it is "Old School" style or particularly sensitive to the heritage of the Z/28. It's not an engine that is particularly "Z". Instead, it would historically represent a different Camaro. 427 ci is not historically a classic Z/28 displacement. The original Z/28, correct me if I am wrong, had the smallest displacement V8 in the 1st Generation lineup - 302 was it? In that respect an engine that would be more representative of what the orignal Z/28 featured would be a lot smaller while maintaining punch. What you want is an engine like this one: Its a dry-sump V8 displacing 4.5 liters (270 ci), which is not a lot. It also produces 562 bhp and redlines at 9,000 rpm, and both of those are a lot. It has continuously variable timing and direct injection. I am not suggesting this exact engine should be used, but merely something like it - it is, after all a race-bred, high revving, low-displacement, high output V8, which is very much in line with what a modern interpretation of the original Z/28 engine should be. The problem is, nothing like it is currently available from GM.
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10-19-2011, 12:36 PM | #33 |
Drives: 02 35th LE SS, 08 G8 GT Join Date: Sep 2011
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The ideal racy Camaro right now is a stripped out SS, dedicated road course suspension (like Pedders), upgraded wheels, tires, and brakes, and maybe around 500hp. On most road courses a 500hp SS with the right suspension will be faster than a 580hp ZL1. What's it take to get an LS3 to 500hp other than basic bolt-ons? Cam? Heads? 550-600+ hp is nice, but 500hp would get the job done on a smaller budget.
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10-19-2011, 01:30 PM | #34 | |
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Quote:
Clyde |
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10-19-2011, 02:03 PM | #35 | |
Too Many Great Choices
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Location: A Mountain Road
Posts: 7,454
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Quote:
Also speaking of heritage the 60's based 427 was a BB a very different animal from today's LS7 SB. Also the LS7 being built in larger quantities should allow for a price reduction. |
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10-19-2011, 02:04 PM | #36 | |
Too Many Great Choices
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Quote:
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10-19-2011, 03:00 PM | #37 |
Downright Upright
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Check the redline for the LS7 vs. LS3...higher-rated @ 7000...making the LS7 (regardless of displacement) the REVVER of the LS (current) family... Heritage intact.
It already has 500+ hp...is certified and validated and smogged for RPO production...and is READY... 270 inches will produce how much TORQUE, a very necessary ingredient in launching/maintaining/corner-exiting a 3800+ lb projectile with mega-grin results? Certainly not the LS7's 470+ (a number an LS3 will NOT match, either...). |
10-20-2011, 03:18 AM | #38 | |
Drives: 2011 Camaro RS Join Date: Feb 2011
Location: Colorado Springs
Posts: 62
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Quote:
Torque is defined as the moment about a point, specifically the tendency of a force to cause rotational motion about a point. It is a measure of the ability to do work, and work is defined as a scalar quantity that is the product of a force. Remember Torque - length of the lever multiplied by a force, which is "work." Power is a measure of the rate that work is performed. With every revolution of the engine, a certain amount of work is performed. In a powerful engine, this work is performed in a short amount of time. In the case of the mysterious example engine vs. the LS7, a sacrifice in torque for increased revolutions means that more work is performed, or more potential energy is converted into kinetic energy in the same amount of time. Since kinetic energy is a function of mass and velocity, assuming the weight of the car is the same with either engine, then the acceleration off of the corner is faster with the lower torque, higher revving engine than it is with the higher torque, lower revving engine because it gets the work done faster. In a nutshell, torque is only useful on the racetrack when combined with revolutions to create power. HP rules. In those senses, I agree that the LS7 supports the heritage of the Z28, although I don't feel that 7000 is a particularly high redline for this day and age to be considered high. Remember, that's what the V6's redline at. If it were 7500 or 8000 then I think that would more clearly distinguish the engine as a modern high-revver. I just don't think the LS family is right for the job. A COPO perhaps. But its all a moot point, because the LS7 is the only option that appears to be currently available and its inclusion vs the other theoretical engine would not affect my want...no need for a Z/28 and appears to be the most likely option. I also agree with you that a Camaro with an LS7 would be a very awesome car and I would still buy it over the ZL1, which I would probably only buy if the Z/28 is never made, or completely fails our expectations, or if I win the lottery (and I don't even play so that makes it difficult). I think its very interesting to compare each of our dreams for a Z/28 and discuss the reasons that we want each specific feature included.
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10-20-2011, 03:32 AM | #39 | |
Drives: 2011 Camaro RS Join Date: Feb 2011
Location: Colorado Springs
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Quote:
I agree that it would definitely be a Gen.5 V8 if this type of an engine would be included. The LS series, although there is no LS8 to my knowledge, seems to be winding down and I doubt there would be an all-new displacement offered. Based on what is currently available it seems that the LS7 would be the only logical fit. However, as I have expressed before, I do not think we will get a Z/28 before the new V8's debut and that heart of the (late) 2013 or 2014 Z/28 will be a power plant that we have yet to see revealed.
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10-20-2011, 08:28 AM | #40 |
Downright Upright
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Lovely theory...but you don't have a lot of experience road racing if you don't think corner-exit torque is important, especially in a heavy vehicle...
Corner-exit engine speeds tend to be in the upper mid-range rpm of the selected gear. Ideally, you don't exit a corner at redline, or even close to redline. You get the car settled, and going straight. So to push/pull you back up to speed as quickly as possible, your ideal exit speed is somewhere very close to torque peak...which is generally about 2/3rds of max. rpm (camshaft/engine set-up dependant - i.e. big inch, OHV/OHC and so on) on a streetable engine. Remember the Torque curve and the HP curve meet @ 5252, right? That may be a good rpm to shoot for, again depending on engine and car. In the case of the LS7, its 470 torque rating arrives fully at 4800 rpm, but being a big-inch engine, the torque curve is not "peaky" at 48, it's progressive, up to AND down from that point (think "high plains")...moreso than the LS3. The much smaller 5.0 the BOSS wears has a torque peak of only 380 @ 4500, but being a smaller engine, it ramps up AND down more quickly (think "foothills"). (I don't have the graphs of each to overlay, but I think you'd see a measured difference in torque plane) So, Mustang BOSS weighs 3631 lb, with 380 max torque = 9.56 lb/lb-ft And Camaro LS7 will curb @ 3850, with 470 max torque = 8.19 lb/lb-ft...17% better than BOSS! With your 270" wonder, and 3850, and its 398 "rating" = 9.68 lb/lb-ft...< BOSS Out of the hairpin, and down the back straight, feel free to tuck in behind me and use my draft... At the end of the straightaway, a whole 'nother story...HP rules! BTW, I doubt you'd get a GM 5/100 PT warranty on a 4.5L with 562 hp/9000 redline... Last edited by LOWDOWN; 10-20-2011 at 10:30 AM. |
10-20-2011, 03:15 PM | #41 |
Too Many Great Choices
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For a much greater than 7K redline we would most likely have to move away from pushrods.
After a loss of momentum while cornering it's the torque that gets you going! GM we have solved the puzzle of the Z28: LS7 and the ZL1 performance bits, minus MR and walla, enter Z28. |
10-20-2011, 05:36 PM | #42 | |
Drives: 1999 Blazer Join Date: May 2007
Location: Richmond, VA
Posts: 1,228
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Quote:
Clyde |
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