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 Second Generation Camaro Owners Group Message Board
 Camaro Questions
 1977 Z28 (Page 9)
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77Z28Banana Member |
posted November 14, 2003 03:06 PM
   
ok guys, one more question, if I am changing the intake, carb, cam, etc . . . do I need to keep the EGR??? I called about my emmissions testing here and all they check for is a cat., smog pump, and fuel restrictor. I am a complete amature if you haven't caught on yet. What is egr anyways?
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Dan77 Veteran Member |
posted November 14, 2003 06:46 PM
 
Banana. Egr stands for exhaust gas recirculation. It takes partially unburned exhaust gasses and sends them back into the intake to be burned again. It is valve located on the passenger side of the intake, below the carb. Are you registering the car as a regular car, or are you registering it as an antique or historic motor vehicle? Most states dont require emission testing on cars registered as a historic ( 25 years old or older ) motor vehicle. Some states do not charge an annual registration fee either, for historic motor vehicle. Dan
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Dirt Reynolds Veteran Member |
posted November 14, 2003 08:00 PM
Dan - your close. The exhaust gases that are metered back into the intake via the EGR valve, cannot be burned again, as this gas is now inert. What it does do, is act as a heat sink, and actually cools down the combustion chamber, therefore reducing NoX -nitrides of oxygen. During the combustion process, the heat spike can reach 1200-1500+ degrees F. The introduced inert gases are much cooler than that and therefore draw a lot of heat out of the process, hence the 'heat sink'. The problem with EGR is that this exhaust gas takes up space in the combustion chamber that could be occupied by air and fuel, which cuts into engine efficiency. At WOT, engine vacuum drops to zero, and the EGR valve closes, so at least when maximum power is called for, there is no EGR circulation. ------------------
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Dan77 Veteran Member |
posted November 15, 2003 09:12 AM
You really know your stuff dirt! Thanks for the correction, Dan
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Dan77 Veteran Member |
posted November 15, 2003 09:20 AM
Does anyone know if the orange metallic color was available on all camaro's , or just the Z28? Dan
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Dan77 Veteran Member |
posted November 15, 2003 05:13 PM
I need some help finding a part for my 77 Z28. I need an original or reproduction air breather intake hose. This hose ( about 3 inches ID and maybe 3 or 4 foot long ) carries fresh air from above the radiator, to the entrance of the air breather. Does anyone have one they would like to sell , or know where I can get one. Thanks Dan
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rich m Veteran Member |
posted November 15, 2003 09:20 PM
quote:
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Major Dad unregistered |
posted November 18, 2003 01:28 PM
Still haven't finished up my 72, but I just bought a 77 Z28 this past weekend. I've had my eye on it for a while. It's been sitting on blocks for 17 years (covered w/ a tarp). The owner blew the engine back in 86 and it's been sitting in her back yard ever since. It's a numbers matching car w/ 91K miles on it and very little rust. I'll post some pics of it soon.
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Major Dad unregistered |
posted November 19, 2003 08:23 AM
quote: Dan, the color of the 77 is Silver (paint code 13). It's an automatic car w/ 91K miles. I've been keeping my eye on this car for over 2 years and for $800, I couldn't pass it up. As you can see, it will need a lot of work, but the car hasn't been butchered up at all - it's all there. I have the original wheels in my garage now. The lady that I bought the car from had them in her garage for the past 17 years, so they are in fine shape. http://f2.pg.photos.yahoo.com/ph/shane_6872/lst?.dir=/77+Z28&.view=t [This message has been edited by Major Dad (edited November 19, 2003).]
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Major Dad unregistered |
posted November 20, 2003 02:48 PM
Does anyone know how many silver 77 Z28s were produced? It may have been covered already, but I didn't feel like looking through 300 some odd posts. BTW, the build date for this car is 02C (3rd week of February). Has anyone seen one built before this? Just curious. [This message has been edited by Major Dad (edited November 20, 2003).]
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Als78z28 Veteran Member |
posted November 20, 2003 06:33 PM
I don't think they have those specific numbers, but you can look at it like this. Roughly 8% of the Camaros built in 77 were silver. And if you multiply 8% x the total number of Z's, you get 1150, roughly. There were 218,853 Camaros built in 77. There were 27,450 Camaros painted silver in 77. There were 14,349 Z's built in 77. Now, one thing to consider is that there were 14 different colors to choose from in 77, but only 7 to choose from on a Z28. So I'm not sure exactly how to look at it, but there's the info I have.
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rich m Veteran Member |
posted November 20, 2003 11:31 PM
quote:
As for the Feb. build code, I can honestly say that I've personally seen (and recorded!) as many 1977 Z28 cowl tags as anyone, and the earliest I ever saw was 02E (5th week of Feb). Does anyone on this board have any connections with Chevrolet PR or Historical Services so that maybe we could look a bit more into the background of this model, it's developement, background, production info, etc. ?
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Dirt Reynolds Veteran Member |
posted November 20, 2003 11:51 PM
My cowl tag is 03E - I assume that to be 5th week of March? ------------------
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rich m Veteran Member |
posted November 20, 2003 11:57 PM
quote: Yep.
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Dan77 Veteran Member |
posted November 21, 2003 07:11 PM
Does the cowl tag tell what transmission the car has?
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