![]() |
|
|
#15 |
![]() ![]() ![]() ![]() ![]() Drives: 2010 RJT 2SS M6 Camaro Join Date: Feb 2011
Location: Garrison,KY
Posts: 1,548
|
It's even more amazing than you realize. All pre-1972 engines were rated in SAE Gross Horsepower. All '72 and up engines are rated in SAE Net Horsepower. This creates a huge difference in the numbers, a 100 horsepower or more in some cases. I have an article that claims that a 325 horsepower 396 only makes about 220 Net Horsepower. That 3.6 V6 actually has more power than a lot of the Big Blocks of the Muscle Car Era!
__________________
2010 RJT 2SS M6, Kooks Long Tubes, NPP Exhaust, CAI Cold Air w/Jannetty Scoop, RotoFab Washer Bottle, Elite Engineering Catch Can, MGW Shifter w/ZL1 Shaft and Knob, 2015 SS Sedan Steering Wheel and Air Bag, 2012 Heater Hose Conversion, 2012 Power Seat Conversion, RS Head Lights,Gen5DIY RS Conversion Harness, LED Fog Lamp Bulbs, Backup Camera Kit, NLP Spoiler, SLP Splitter, ZL1 Rockers and Diffuser, Color Matched Shark Fin, RS Roof Mouldings, Painted White Stripes, WCC LS3 Emblems, Heritage Grille and Blacked Out Tail Light Panel w/Retro SS Emblems, 416 RWHP, 411 RWT, Tuned by BlueCat.
|
|
|
|
|
|
#16 | |
|
7 year Cancer Survivor!
Drives: 17 Cruze RS, 07 G6 GT, 99 Astro Join Date: Dec 2007
Location: East Tennessee
Posts: 21,546
|
Quote:
__________________
Cancer's a bitch! Enjoy life while you can! LIVE, LOVE, DRIVE...
The Bird is the word! |
|
|
|
|
|
|
#17 |
|
Camaro6 2016-2018
Drives: sometimes Join Date: Mar 2008
Location: Phoenix
Posts: 18,467
|
|
|
|
|
|
|
#18 | |
|
Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
|
Quote:
The odd things is that while the '69 COPO/ZL-1 Camaros were made to be dragstrip fighters, ultimately problems with things like heat transfer could be as much of a downside as the weight of an iron block engine. Still, they were churning out around 500 gross hp when the factory exhausts were changed to tubular headers
__________________
|
|
|
|
|
|
|
#19 | |
![]() ![]() ![]() ![]() ![]() Drives: 2010 RJT 2SS M6 Camaro Join Date: Feb 2011
Location: Garrison,KY
Posts: 1,548
|
Quote:
COPO 9560 had the aluminum block ZL1 427, rated at 430 horsepower(actually around 500, SAE Gross). There were 69 of those built. 50 of them went to Fred Gibb Chevrolet in LaHarpe, Ill. The other 19 went to various dealers around the country. The price of this COPO was $4150, making the engine option more expensive than the base car it was being installed in and making the car with the engine more expensive than a Corvette. COPO 9561 had the cast-iron block L72 427, rated at 425 Horsepower(actually around 450 SAE Gross). 201 of these went to Don Yenko Chevrolet in Cannonsburg, Pa, for conversion to Yenko Super Cars. An unknown quantity(less than 600) went to various other dealers around the country. The price of this COPO was $489, making a 425/427 Camaro $130 LESS expensive than a 375/396 Camaro. COPO 9737 was called Sports Car Conversion and consisted of a 1" front sway bar, 15" Rally Wheels w/E70-15 tires, and a 140 mph speedometer(later in the year it also included a tachometer). This was an attempt to take some of the "plain" out of the "Plain Janes" and was only available in conjunction with one of the other COPOs. Any car that has this COPO is a double COPO. Most of the Yenkos had this option, but some of the other cars that were sold around the country also had this option. The price of this COPO was $160($184 w/tachometer) All of them were built in Norwood(Cincinnati), Ohio, along side all the other Camaros, using no special procedures and standard X11(Style Trim) and X44(non-Style Trim) bodies. They had no external markings, but they had all the heavy-duty Big-Block hardware in their drive lines. They all had ZL2 Cowl Induction hoods, but many of them didn't even have rear spoilers. Most of them had body-colored 14" wheels and small "dog-dish" hubcaps. They looked like a six-cylinder granny car that somebody had put a Cowl Induction hood on. This prompted their first nickname, "Plain Jane". The COPO name didn't come along until much later when collectors started digging into just how they were constructed. They weren't in the brochures, ordering guides, parts catalogs, or any other documentation. As far as GM was concerned, they didn't exist. GM built them strictly for one purpose, to win races, but considered them to be politically incorrect. Their intention was to sneak them out the back door, put them in the hands of racers and then deny publically that they ever built them. I tried to buy a part for one in the mid-seventies and the dealer parts department told me that they never made such a car. And this was the dealer that sold it new, along with six other ones!
__________________
2010 RJT 2SS M6, Kooks Long Tubes, NPP Exhaust, CAI Cold Air w/Jannetty Scoop, RotoFab Washer Bottle, Elite Engineering Catch Can, MGW Shifter w/ZL1 Shaft and Knob, 2015 SS Sedan Steering Wheel and Air Bag, 2012 Heater Hose Conversion, 2012 Power Seat Conversion, RS Head Lights,Gen5DIY RS Conversion Harness, LED Fog Lamp Bulbs, Backup Camera Kit, NLP Spoiler, SLP Splitter, ZL1 Rockers and Diffuser, Color Matched Shark Fin, RS Roof Mouldings, Painted White Stripes, WCC LS3 Emblems, Heritage Grille and Blacked Out Tail Light Panel w/Retro SS Emblems, 416 RWHP, 411 RWT, Tuned by BlueCat.
Last edited by Rocky1974; 12-24-2013 at 05:36 PM. |
|
|
|
|
|
|
#20 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012
Location: Tampa by way of Miami...
Posts: 4,934
|
My favorite years in chronological order... 1968, 1970 1/2 split bumper, 1987 IROCZ, 2013 1LE, 2013 ZL1, 2014 Z/28.
__________________
My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054
|
|
|
|
|
|
#21 |
|
Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
|
Great article on the 1969 Camaro ZL-1 in "Classic Auto Restorer" magazine, August 1994 issue.
http://www.amazon.com/Classic-Restor.../dp/B001MS5AL8 (I got my issue when it was new )
__________________
|
|
|
|
|
|
#22 |
|
Account Suspended
Drives: 2017 Camaro ZL1 A10 Join Date: May 2012
Location: NJ
Posts: 7,692
|
|
|
|
|
|
|
#23 |
|
Account Suspended
Drives: 2017 Camaro ZL1 A10 Join Date: May 2012
Location: NJ
Posts: 7,692
|
Ok, here is a guy who has no idea what he's talking about. From 86-02, the top line Camaros, Firebirds, and Trans Ams offered the most powerful engines and the fastest cars available at their price range. So if Camaros had poor performance, then EVERY car on the planet around the same price had poor performance...which still means that comparatively, the Camaro was STILL the best performer.
|
|
|
|
|
|
#24 | |
![]() Drives: 2016 2SS, Summit White, A8, NPP Join Date: Apr 2013
Location: Arkansas
Posts: 717
|
Quote:
|
|
|
|
|
|
|
#25 |
![]() ![]() ![]() ![]() ![]() Drives: 2010 RJT 2SS M6 Camaro Join Date: Feb 2011
Location: Garrison,KY
Posts: 1,548
|
And some of them were overrated too and the only ones that were underrated were the ones at the upper end of the horsepower ladder. The torque ratings were rated in SAE Gross then verses SAE Net now also. I'm not trying to tell you that today's V6 has as much torque as a Muscle Car Era Big Block, but the difference is not as much as you would think. Horsepower owes it's existence to torque. No torque, no horsepower.
__________________
2010 RJT 2SS M6, Kooks Long Tubes, NPP Exhaust, CAI Cold Air w/Jannetty Scoop, RotoFab Washer Bottle, Elite Engineering Catch Can, MGW Shifter w/ZL1 Shaft and Knob, 2015 SS Sedan Steering Wheel and Air Bag, 2012 Heater Hose Conversion, 2012 Power Seat Conversion, RS Head Lights,Gen5DIY RS Conversion Harness, LED Fog Lamp Bulbs, Backup Camera Kit, NLP Spoiler, SLP Splitter, ZL1 Rockers and Diffuser, Color Matched Shark Fin, RS Roof Mouldings, Painted White Stripes, WCC LS3 Emblems, Heritage Grille and Blacked Out Tail Light Panel w/Retro SS Emblems, 416 RWHP, 411 RWT, Tuned by BlueCat.
|
|
|
|
|
|
#26 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Some of those 2nd gens just never did it for me but boy do I want to fix up a nice 3rd gen some day.
__________________
Mods: BBK Intake, BBK LT's and High Flow Cats, Corsa Cat-back exhaust, Hurst short throw shifter, SLP skip-shift eliminator. 7/1/09 Placed order for IOM/IO int/ SS/RS 6M 9/26/09 Took delivery! |
|
|
|
|
|
#27 |
|
Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
|
Also bear in mind that the car manufacturers out and out lied then as they do today.
GM: It's a 402? We'll still call it a 396! It's a 401? Tell the bean-counters its a 400, that will get us around the corporate ban. Ford: Our new engine is 428 cubic inches, just like one we already have? OK, call it a 429! All of them: we can make 400 hp and then the engine detonated on the test stand? Great! Rate them all at 400 hp Actually, I can think of only one instance (Buick) that not only used repeatable average hp output, and under-rated hp, in an effort to get the division to sorta look the other way. Their back-door racing program was closed down just the same.
__________________
|
|
|
|
|
|
#28 |
![]() ![]() ![]() ![]() ![]() Drives: 2010 RJT 2SS M6 Camaro Join Date: Feb 2011
Location: Garrison,KY
Posts: 1,548
|
While I agree that there were some real duds in those years, there were certainly some gems also. Styling is subjective and lets face it, no Camaro had much in the way build quality until the 5th Gen. Performance took a sllde in the early seventies, but made a big comeback from the mid eighties until 2002. Those 1998-2002 model were LS powered and nothing with a LS in it is a slouch!
__________________
2010 RJT 2SS M6, Kooks Long Tubes, NPP Exhaust, CAI Cold Air w/Jannetty Scoop, RotoFab Washer Bottle, Elite Engineering Catch Can, MGW Shifter w/ZL1 Shaft and Knob, 2015 SS Sedan Steering Wheel and Air Bag, 2012 Heater Hose Conversion, 2012 Power Seat Conversion, RS Head Lights,Gen5DIY RS Conversion Harness, LED Fog Lamp Bulbs, Backup Camera Kit, NLP Spoiler, SLP Splitter, ZL1 Rockers and Diffuser, Color Matched Shark Fin, RS Roof Mouldings, Painted White Stripes, WCC LS3 Emblems, Heritage Grille and Blacked Out Tail Light Panel w/Retro SS Emblems, 416 RWHP, 411 RWT, Tuned by BlueCat.
|
|
|
|
|
|
|
|
![]() |
|
|