Is the 02 throttle body bigger than an 01 and is the MAF bigger? I know it does not have a screen. Is there any benefit to an 01 changing to some of these 02 parts? :confused:


[Modified by kgrif, 7:25 PM 6/24/2002]

 

kg, I think they are the same, with the exception of the screen......not 100% sure, but close. :rolleyes:

 

Here is the list....

'02 ZO6 Changes

Deleted Pre-Cats
New Cats - Provides less back pressure and opportunity to increase induction
New Air-Filter Assy. - Allows higher air volume for induction system
New MAF Sensor - Screen removed to increase air induction
New Cam - Higher lift on intake and exhaust valves. .525 to .551 on intake and from .525 to .547 on exhaust. Once again, better induction.
New Valves - Hollow stem, sodium/potassium filled to make valves lighter to avoid floating at high RPM.
New Valve Springs - Stiffer springs to accomodate a positive open/close action with the lighter valves.
New Oil Ring - Higher tension oil ring from 9lb. to 13 lb. Fixes the oil consumption problem caused by high RPM, low load piston flutter.
New Piston - Changed to have reduced piston to bore clearance and skirts coated with anti-friction polymer. Reduces 'cold piston knock' and reduces scuffing caused from the tighter tolerance between piston and cylinder wall.
New Clutch - Pressure plate clamp load increased from 2315 lbs. to 2475 lbs. (which also causes a stiffer pedal). Clutch disk damper spring rate increased and a higher grade of steel used for the springs. Hub thickness increased by 20%. (from 5mm to 6mm increase in thickness)
HUD Head Up Display
New Wheels - Lighter by 1.5 lbs. (in total for all 4) Maintains the strength of 100% forged wheels by using new (cast-spun) technology.
New Brake Pads - More aggresive material to increase stopping friction but may increase noise and dust while decreasing rotor life (at least under aggressive braking)
New Color - Electron Blue
Rear Shock Valving - Reduced "mid-velocity" stiffness (damping) that reduces wheel hop and chop. Increased stiffness (damping) in "low-velocity" range that re-casptures body control lost with "mid-velocity" changes. Net result is: less wheel hop and better ride comfort with no loss of handling (especially with corner exit acceleration)
New Front & Rear Stabilizer Links - Reduce weight. (no performance change)
405 HP Badging

 

So, here's a more interesting challenge.

I'd like to track the improvements from my '99 Coupe to my 2002 Z06.

Any idea where I can find the following:

Improvements from 1999 - 2000
Improvements from 2000 - 2001?

Thanks!!! :D