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-   -   5TH Gen COPO Camaro (https://classracer.com/classforum/showthread.php?t=37153)

Ed Sroka 12-04-2011 11:25 AM
Re: 5TH Gen COPO Camaro
 
Thanks Mickey. Couldn't agree more although I didn't want to be the first to say it here. The COPO version certainly doesn't help. The aspect ratio is simply miserable.

Dirk Olson 12-05-2011 11:51 AM
Re: 5TH Gen COPO Camaro
 
327, 5 speed cross, it over like a comp car at 10,400, could run high 8's

new az stocker 12-05-2011 12:27 PM
Re: 5TH Gen COPO Camaro
 
The last good looking Camaro was the first generation...............................

jmcarter 12-05-2011 12:46 PM
Re: 5TH Gen COPO Camaro
 
Quote:
Originally Posted by new az stocker (Post 297119)
The last good looking Camaro was the first generation...............................
I may be a Mopar guy but agree with you 1000%. Truly a classic. I would love to have one if they weren't so expensive.

Troy Pourciau 12-05-2011 08:53 PM
Re: 5TH Gen COPO Camaro
 
WHOOO 9's right out of the box.

The Chevrolet COPO Camaro development group was in Bradenton, Fla., with the prototype version of the factory-prepared race car making shakedown runs on Monday. The group kept the car’s performance under a shroud of secrecy as they made several runs with the scoreboards turned off.
Longtime class racer Mike Pustelny is the driver putting the new Chevrolet through its paces. We are told the car has already made it into the 9's despite a mild launch. A source tells CompetitionPlus.com that this COPO was built at Pustelny's MPR Race Cars shop with direction from Russ O'Blenes, Robin Wright, and Mark Kent of Chevrolet Performance.
PHOTOS: TESTING IN DECEMBER
http://www.competitionplus.com/image...ne/copo_01.jpg

hemidup 12-05-2011 09:08 PM
Re: 5TH Gen COPO Camaro
 
What's that thing weigh? Heard the NA/427 will fit into A/SA.

Troy Pourciau 12-05-2011 09:46 PM
Re: 5TH Gen COPO Camaro
 
427
327/2.9
327/4.0
Suggested class
A Stock
AA Stock
A Super Stock
Cubic inches
427 (7.0L)
327 (5.3L)
327 (5.3L)
Block
LS7
LS9
LSX
Block material
Aluminum
Aluminum
Cast iron
Bore x Stroke (in.)
4.125 x 4.100
4.065 x 3.150
4.065 x 3.150
Crank
Forged steel
Forged steel
Forged steel
Rods
H-beam
H-beam
H-beam
Pistons
Forged dome
Forged dome
Forged dome
Compression ratio
13.5:1
10.2:1
10.2:1
Heads
LS7
LS7
LS7
Induction
natural
boosted
boosted
Intake
Holley 2.9L
Whipple 4.0L
Whipple
Camshaft type
Hydraulic roller
Hydraulic roller
Hydraulic roller
Cam duration (deg.)
233/276 @ 50
244/255 @ 50
244/255 @ 50
Cam lift (in.)
.595
.650
.650

rawhide 12-05-2011 10:57 PM
Re: 5TH Gen COPO Camaro
 
Quote:
Originally Posted by Troy Pourciau (Post 297210)
427
327/2.9
327/4.0
Suggested class
A Stock
AA Stock
A Super Stock
Cubic inches
427 (7.0L)
327 (5.3L)
327 (5.3L)
Block
LS7
LS9
LSX
Block material
Aluminum
Aluminum
Cast iron
Bore x Stroke (in.)
4.125 x 4.100
4.065 x 3.150
4.065 x 3.150
Crank
Forged steel
Forged steel
Forged steel
Rods
H-beam
H-beam
H-beam
Pistons
Forged dome
Forged dome
Forged dome
Compression ratio
13.5:1
10.2:1
10.2:1
Heads
LS7
LS7
LS7
Induction
natural
boosted
boosted
Intake
Holley 2.9L
Whipple 4.0L
Whipple
Camshaft type
Hydraulic roller
Hydraulic roller
Hydraulic roller
Cam duration (deg.)
233/276 @ 50
244/255 @ 50
244/255 @ 50
Cam lift (in.)
.595
.650
.650
when I take my shoes and socks off and do the math the 427 with a 4.125" bore and 4.100" stroke is 438 cubic inches. The Factorys are even taking care of the cheating for us now.
regards, Roland

Ed Wright 12-05-2011 11:08 PM
Re: 5TH Gen COPO Camaro
 
Yep, your correct. 438"

Pvt Parts 12-05-2011 11:14 PM
Re: 5TH Gen COPO Camaro
 
Quote:
Originally Posted by rawhide (Post 297225)
when I take my shoes and socks off and do the math the 427 with a 4.125" bore and 4.100" stroke is 438 cubic inches. The Factorys are even taking care of the cheating for us now.
regards, Roland

Some prefer to call it "Pushing the Envelope". 8-)


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