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Whats the different between 2001 and 2002 and later Z06's
Ok, this question comes up frequently, so in a nutshell here are the major differences between 2001, and 2002-2004 Z06's. 2MuchRiceMakesMeSick for compiling it.
differences between 2001 & 2002 & up:
1. The LS6 engine standard in the Z06 increased from 385 to 405 horsepower. Torque increased from 385 to 400 lb-ft.
2. Front fender badges for Z06 models included the 405 HP designation.
3. LS6 exhaust back pressure was reduced by 16%
4. Cam shaft was redesigned resulting in increased lift and a 5% increase in air flow
5. Valve spring material composition was changed to increase seat load by 14%.
6. LS6 intake and exhaust valves were a new, lighter design.
7. The valve train weight was reduced by 0.81 pounds, which improved valve seating at high rpm.
8.Airflow over the LS6 MAF sensor was increased by removing grid work
9. MAF software was re calibrated
10. LS6 air cleaner housing had a larger intake
11. Wheels looked the same BUT they were cast spun instead of forged for a weight savings of 1.3 pounds per car
12. rear shock valving was changed
13. Improved clutch
14. Thicker front anti-sway bar
15. New front brake pads
16. HUD was standard (HUD was not avaliable in 2001 cars)
17. 2004 introduced a new fuel system which carries over into the new C6.
The technical details on 2001 vs 2002 can be found here.
cool, what do most non z06, ls1 c5s dyno bone stock? so is one z06 any faster than the other assuming 2002-2003 models? how much faster is the 405hp one vs 385hp one?
__________________ 2002 Z06 Electron Blue with Mod Red Interior - LS7 clutch, American Racing Headers and tuning by Speed Secrets
GONE - '02 Trans Am Ram Air #7396
Blk/Blk, M6, LS6 block, Lid, K&N, Hot Cam, LS6 springs, FLP Headers, GMMG, HP Tuner,
4.11's, Pro-Kit, A200's w/315's
Dyno'd 332rwhp/331rwtq (before cam and tune)
First time at track: 12.997sec @ 113.22mph (7/30/04) http://www.cardomain.com/memberpage/277868
basically it's the higher lift cam in '02 that made the bump in power, .525 to .550 lift and some more duration
the '05 LS2 uses the same specs as the '01 Z06 cam(no reluctor on the cam though, cam sensor reads off the sprocket up front)
electron blue replaced white in '02, machine silver replaced quicksilver in '04
FFS fuel system was mid year '03(pumps on top of tanks)
__________________ 2003 Z06 (LS2/402 build in progess) 2003 Z06 (sold 2011 to Canada)
2002 Z06 (sold 2010 to FLORIDA)
2002 Z06 (sold 2006)
2002 Z06(sold 2005 to Canada/Chopper Loco)
2000 FRC(sold 2009)
1999 FRC(sold 2008)
1998 CR.M6(sold 2005)
Can anyone elborate on this? Specifics? Diaphragm pressure difference? Disc material?
__________________ He started the tapping motion but didnt actually finish, kinda like when Hogan's arm falls for the 3rd time but just before it drops all the way he picks it up and waves his fingers like oh no brother, yea he got that from the Hulkster.
LS6 Clutch Improvements
To withstand the greater torque output of the new engine, the LS6 clutch was redesigned. Clamp load has been increased seven percent and durability has been augmented by the following enhancements:
The clutch-driven disc was redesigned, with the flange plate thickness increased by 20 percent - from 5 mm to 6 mm . The damper springs were redesigned to increase wind-up rate, from 33 Newton-meter degrees to 35 Newton-meter degrees . Premium alloy steel wire is now used for the damper springs.
These changes ensure long life and good performance for the LS6 clutch.
__________________ He started the tapping motion but didnt actually finish, kinda like when Hogan's arm falls for the 3rd time but just before it drops all the way he picks it up and waves his fingers like oh no brother, yea he got that from the Hulkster.
cool, what do most non z06, ls1 c5s dyno bone stock? so is one z06 any faster than the other assuming 2002-2003 models? how much faster is the 405hp one vs 385hp one?
my 2001 C5 dyno was 310 rwhp and 320 rwtq i have B&B bullets and a volant intake bt thats it
Whats the different between 2001 and 2002 and later Z06's 
Z06 Specs ? 
