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Super Damper® Harmonic Dampers


The patented ATI Super Damper is the only damper designed exclusively for high performance engines.

  • Eliminates torsional crankshaft vibrations
  • Exceeds SFI 18.1 specs
  • Black zinc chromate finished
  • Tunable, rebuildable, and extremely efficient at ALL RPM
  • Laser engraved 360° timing marks

Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. This inertia weight has six (2-ring design) or eight (3-ring design) computer machined grooves to retain the proper durometer O-rings (dyno tested for each application).

Damper Accessories
How to read this chart

Nissan Dampers
 
ALUMINUM SHELL
CRANKSHAFT
HUB
PART NUMBERS
OUTER DIAMETER
7.053" OD
7.074" OD
6.78" OD
6.325" OD
5.5" OD
2 RING
3 RING
2 RING
3 RING
2 RING
3 RING
2 RING
3 RING
STEEL
HUB
STEEL HUB
WITH
INNER SHELL

TOTAL WEIGHT
INERTIA WEIGHT

5.25 lbs
3.50 lbs
6.25 lbs
4.50 lbs
5.45 lbs
3.70 lbs
5.00 lbs
3.40 lbs
4.5 lbs
2.4 lbs
4.3 lbs
2.2 lbs
3.90 lbs
2.40 lbs
3.30 lbs
1.97 lbs
3.60 lbs
2.27 lbs
DAMPER ASSEMBLY PART NUMBERS (includes crank hub)
4 CYL - L16, L18, L20
 
     
917720
   
916020
 
6 CYL - L28, L24, L26
SINGLE V-BELT BEHIND DAMPER
 
917800
917801
917790
   
918040
   
916780
 
RB26
6 CYL
RACE: No Accessory Drives
 
918593
 
   
918596
   
916060
 
STREET: Up to 750HP
R32 - DIRECT BOLT ON U/D
               
918599
[1]
 
916063
STREET: 1000HP
R32 - DIRECT BOLT ON U/D
917752 [2]
               
916065
 
STREET: Up to 750HP
R33 & R34- DIRECT BOLT ON U/D
               
918598
[1]
 
916063
STREET: 1000HP
R33 & R34 DIRECT BOLT ON U/D
917753 [2]
               
916065
VG30
V6 300ZX
'90-'98
35mm Crank
RACE: 1000 HP Max        
917755
       
916784
STREET: 600 HP Max
P/S, AC, Alt
 
   
917754

916781

VQ35HR - V6
'07-'08 SKYLINE
'07-'08 G37
'07-'08 370Z
'09-'12 FX35


VQ37VHR
- V6
'08-'14 SKYLINE
'08-'13 G37
'09-'14 370Z
'13 FX37

DRY SUMP CONVERSIONS ONLY. CALL FOR OEM REPLACEMENT

5.7"
OEM
7 RIB PULLEY
   
918565
[5]
     
 

916778

 
4.8"
15% U/D
7 RIB PULLEY
 
918566
[5]
 

916778

 
VQ35DE
V6 350Z
'02-'06
RACE    
918586
         

916069

 
STREET: P/S, Air, Alt  
 
918588

916069

 
SR20
4 CYL [3]
RWD Street
4 & 5 Rib w/PS Pulley
918582 [4]
916066
FWD Race      
918608
         
916082
FWD Street          
918607
     
916082
 
KA24 - 4 CYL OEM SIZE BELTS
               
917756
916792
 
VR38DETT
6 CYL
GT-R 7-RIB 5% UD  
 
918641
         
916787

[1] 16% UD for power steering. AC, water pump and alternator are all 6%UD.
[2] Damper includes new billet aluminum water pump pulley for clearance. AC is a 25% OD. Do not use a belt if racing! 3% UD power steering, 10% UD for alternator.
[3] If installing on a standard “DE” engine, you must use ATI crank spacer #916298 behind the damper.
[4] Power steering pulley is 11% UD.

[5] Only works on Dry Sump motors with no dipstick. OEM dipstick will not clear damper.


  How to read this chart
  1. Locate the correct manufacturer's chart
  2. Choose the specific engine application listed down the left side of the chart
  3. Determine if the damper needs to be internally or externally balanced ( external balance dampers are constructed of steel only). Black bars that extend horizontally across the entire chart designate these sections
  4. Determine if you need steel or aluminum shells. Labels for this information are listed across the top of the chart in columns 2 and 3.
  5. Once you have determined the shell material, you need to find the outside diameter (OD) of the desired steel or aluminum shell. Then choose between 2 or 3 rings and the desired weight of the damper.
  6. From the far right section of the chart, select either a steel or aluminum hub for your desired engine application. To determine the correct damper assembly part number that intersects is the correct damper assembly.
  7. Assembly part numbers that are color coded correspond to the pulley mount bolt pattern listed near the top of the charts.
 
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