[Z06] what's the difference??
Race Director
Joined: Sep 2001
Posts: 13,292
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From: Hockessin Delaware
Re: what's the difference?? (Lancer033)
I believe cam, maf upgrade, slight valve change, maybe some others - exhaust - cats or manifold I think. It was in Car and Driver a while ago - I'll try and dig it up.
Thread Starter
Le Mans Master
Joined: Aug 2002
Posts: 8,222
Likes: 0
From: Norfolk VA
Re: what's the difference?? (Lancer033)
From MilYellow 02
Here is a list of every single change
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
Here is a list of every single change
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
