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c5 z06 vs. c5

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Old Aug 17, 2009 | 06:18 PM
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Default c5 z06 vs. c5

hi

i´m wondering

diffrence between 2003/2004 model c5 z06 and c5 m6

for example
gearbox? and diffrential.
brakes?
suspension?
fuel pump/system?

is there any/many changes made on these parts in Z06

if so what?

Last edited by baezi z06; Aug 17, 2009 at 06:55 PM.
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Old Aug 17, 2009 | 06:59 PM
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Many things different. Start here http://www.corvetteactioncenter.com/...2003specs.html
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Old Aug 18, 2009 | 03:26 AM
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Originally Posted by nuck

i see the gearbox has diffirent gears diffr., is te Z gearbox stronger or, are they similuar?

what about fuel pump is that the same?

i´m wondering is the c5 gears as strong as the Z06, or is the Z made stronger?

As for the suspension, i know there are not the same shocks, but is that the only diffrient?
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Old Aug 18, 2009 | 04:13 AM
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the only transmission differences are the gear ratios, as far as I know. GM actually started replacing C5Z transmissions with "regular" ones during warranty/extended warranty repairs at some point, as Z06-specific one went out of production.

fueling system is identical between Z05 and coupe/convertible, although there were slight changes throughout c5 model years.

z06 has unique shocks, sway bars and springs as far as the suspension goes. slight changes in shock valving between 01, 02+03, and 04 Z06 models.

brakes are the same, except for the color of the calipers and pads
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Old Aug 18, 2009 | 06:46 AM
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I prefer the M6 gear box over the M12 ( C5Z) gear box.

now that said I would like the M12s 5th ( .84) gear in my M6 gear box, and the M6 5th gear ( .74) as my 6th gear. This would make 4, 5 and 6 much closer and usable at high speeds.
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Old Aug 18, 2009 | 07:00 AM
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Originally Posted by AU N EGL
I prefer the M6 gear box over the M12 ( C5Z) gear box.

now that said I would like the M12s 5th ( .84) gear in my M6 gear box, and the M6 5th gear ( .74) as my 6th gear. This would make 4, 5 and 6 much closer and usable at high speeds.
Which boxes whith 3.42 would you say was better for drag result, lunching and trap speed for 402 N/a?



And the suspension changes, : what´s the main diffrence in springs and sway bar, is it stiffer or?
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Old Aug 18, 2009 | 07:08 AM
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Originally Posted by baezi z06
Which boxes whith 3.42 would you say was better for drag result, lunching and trap speed for 402 N/a?
with a 402 you will have HUGE amounts of torque, I would go with the MN6, not the MN12. with the low 1st gear of the MN12 you will just spin and spin your tires and go no place fast



And the suspension changes, : what´s the main diffrence in springs and sway bar, is it stiffer or?
Z06 sways are larger and stiffer. Springs and shocks are also stronger
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Old Aug 18, 2009 | 11:38 AM
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Stock tire width was a little more in the Z too, as I recall. The big change was the LS6 vs. the LS1. It didn't seem like much, but all the changes added up. The intake was much bigger in the Z too, and the exhaust was of course much lighter.
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Old Aug 18, 2009 | 12:25 PM
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Originally Posted by yakisoba
Stock tire width was a little more in the Z too, as I recall. The big change was the LS6 vs. the LS1. It didn't seem like much, but all the changes added up. The intake was much bigger in the Z too, and the exhaust was of course much lighter.

what about the weight, where lies those 70kg diffirent between z c5 and c5??
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Old Aug 18, 2009 | 12:47 PM
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Coupes rear glass and hatch, plus the seats make up a huge difference. Then the front windshield glass is different and lighter in the Z.

Carpet in the Z is thinner and lighter.
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Old Aug 18, 2009 | 01:12 PM
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The transmissions are different The C5 has a t-56 m6 wide ratio transmission and the Z06 has the M 12 close ratio transmission... The close ratio transmission is much better for drag racing or road racing as it keeps the engine in the peak power range at all times. A good set of drag radials or slicks will get the power to the road .. I'd be upset if my m12 was replaced by the mm6 under warranty

Last edited by David426; Aug 18, 2009 at 01:21 PM.
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Old Aug 18, 2009 | 02:06 PM
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Originally Posted by David426
The transmissions are different The C5 has a t-56 m6 wide ratio transmission and the Z06 has the M 12 close ratio transmission... The close ratio transmission is much better for drag racing or road racing as it keeps the engine in the peak power range at all times. A good set of drag radials or slicks will get the power to the road .. I'd be upset if my m12 was replaced by the mm6 under warranty
wide radio and close radio , i dont understand the diffirence there?

What about stiffness, are they as strong, Can they take the same power and TQ
and the gears are they as strong in both c5 and c5 Z


would it be bad idea to take m6 rather then m12, whith drag race in mind. if you had 402 n/a much TQ

lunching at 5000-55000rpm on slicks...
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Old Aug 18, 2009 | 02:13 PM
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Originally Posted by baezi z06


would it be bad idea to take m6 rather then m12, whith drag race in mind. if you had 402 n/a much TQ

lunching at 5000-55000rpm on slicks...
With a 402, and 5000 rpm launches you will destroy the the stock T56 in no time, not to mention your clutch

Look into RPM transmissions or Rockland Standard Transmission
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Old Aug 18, 2009 | 02:17 PM
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At one point in time, the 3.42 gear set in the Z06 was a little stronger. I think they shot peened the Z06 gear set, but not the coupe ones.
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Old Aug 18, 2009 | 03:01 PM
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Originally Posted by AU N EGL
With a 402, and 5000 rpm launches you will destroy the the stock T56 in no time, not to mention your clutch

Look into RPM transmissions or Rockland Standard Transmission

but will the m12 from Z06, hold it because i´ve taken many many good lunches at 4700-5100rpm and not broken anything yet

Are you saying that the Z gearbox is stonger?
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Old Aug 19, 2009 | 12:06 AM
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Originally Posted by baezi z06
but will the m12 from Z06, hold it because i´ve taken many many good lunches at 4700-5100rpm and not broken anything yet

Are you saying that the Z gearbox is stonger?

The T-56 six speed manual transmission has been used in a wide range of vehicles from General Motors, Dodge, and Ford Motor Company. The transmission was originally designed and built by Borg-Warner, but as of 1998, is built by Tremec, though nothing changed internally[citation needed]. The T-56 has been succeeded by the Tremec TR-6060 transmission in many former T-56 applications, as well as applications requiring greater strength than the T-56 could offer.



Applications
Aston Martin DB7 Vantage, 1999–2003
Aston Martin V12 Vanquish, 2001–2006
Chevrolet Corvette, 1997–2007
Dodge Ram SRT10, 2004–2006
Dodge Viper, 1992–2007
Ford Mustang Cobra, 2003–2004
Ford Mustang Cobra R, 2000
Ford Falcon XR6, XR6T, XR8, F6 Tornado/Typhoon, GT/GT-P 2004–2008
General Motors GM F platform V8 cars, 1993–2002
Holden Commodore 1998–2008
Holden Monaro, 2001-2006
GM M12
2001–2004 Chevrolet Corvette Z06
2004–2006 Pontiac GTO
2004–2006 Cadillac CTS-V
GM MN6
2004–2007 Chevrolet Corvette
GM M10
2005–2006 Chevrolet SSR
2006–2008 Holden VE Commodore
GM MZ6
2005–2007 Chevrolet Corvette Z51
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Old Aug 19, 2009 | 06:57 AM
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Even with those great names above ( Ferrari 550 and 575 are missing) the T56 is not designed for DRAG racing as if comes from Tremec.

Originally Posted by baezi z06
but will the m12 from Z06, hold it because i´ve taken many many good lunches at 4700-5100rpm and not broken anything yet
YET is the key word

Are you saying that the Z gearbox is stonger?
Some what. Shot peaned gears, steel shift forks vs aluminum shift forks.

with my MN6 rebuilt with steel shift forks - shot peaned gears) I have many many road racing miles on. and it has been great. Granted I dont do 4700-5200 rpm launches.

if and when the time comes to build a 402 - I am putting a stronger transmission in. Most likely a Rockland Standard.

Last edited by AU N EGL; Aug 19, 2009 at 07:03 AM.
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Old Aug 22, 2009 | 05:13 AM
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Originally Posted by AU N EGL
Even with those great names above ( Ferrari 550 and 575 are missing) the T56 is not designed for DRAG racing as if comes from Tremec.

YET is the key word


Some what. Shot peaned gears, steel shift forks vs aluminum shift forks.

with my MN6 rebuilt with steel shift forks - shot peaned gears) I have many many road racing miles on. and it has been great. Granted I dont do 4700-5200 rpm launches.

if and when the time comes to build a 402 - I am putting a stronger transmission in. Most likely a Rockland Standard.

i´m gona use an MN6 gearbox because of the gearing.... whith my setup 402 H/C n´d spec 3 clutch
i´contacted rpm and he wanted to sell my parts for over
$3000 that is not what i had in mind to expensive
, so what should i start whith , try to use it stock, and see how it goes or should i order some parts in it to make it a bit stronger, if so what should i ask for.?
Is steel shift forks and shot peaned gears enough?
or?

here is one of them lunches...
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Old Aug 22, 2009 | 12:41 PM
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Originally Posted by AU N EGL
With a 402, and 5000 rpm launches you will destroy the the stock T56 in no time, not to mention your clutch

Look into RPM transmissions or Rockland Standard Transmission
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Old Aug 27, 2009 | 12:33 PM
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So are there any fuel-system diffrence between z06 2004 and c5 2003 ????'



What is the diffrence in Clutch system c5 2003 and z06 2004
thanks

kv Baering
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