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Specializing in:

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ULTRA-LITE Aluminum Flywheels - Porsche

 

Our ULTRA-LITE competition flywheels are designed to enhance vehicle performance by reducing the static flywheel weight and Moment of Inertia (MOI) to near minimum which allows the engine to "rev" quicker thus increasing the vehicle's acceleration rate. These flywheels are designed for off-highway competition usage only and utilize reduced diameter multi-disc racing clutches. These clutch systems require a properly installed and adjusted clutch pedal stop to control clutch pedal travel. These flywheels and clutch systems are not suitable for street driven vehicles.

ULTRA-LITE Flywheel Kits include:
 
- Complete CNC machined UL aluminum flywheel
- Replaceable, hardened steel friction surface
- Clutch mounting hardware
- Helicoil inserts installed as required
- Starter ring gear heat shrunk and bolted
- Hardened steel flywheel bolt ring w/
- Premium 10.9 grade installation bolts
- Zero Balanced

ULTRA-LITE Flywheel/Clutch Kits include:
 
- Complete CNC machined UL aluminum flywheel
- Racing multi-disc clutch (114, 140, 184 or 200mm)
- Performance pressure plate (114, 140, 184 or 200mm)
-Throw-out bearing w/ custom JBR bobbin
- Replaceable, hardened steel friction surface
- Clutch mounting hardware
- Helicoil inserts installed as required
- Starter ring gear heat shrunk and bolted
- Hardened steel flywheel bolt ring w/
- Premium 10.9 grade installation bolts
- Zero Balanced

Our ULTRA-LITE flywheels and clutch systems are categorized by specific model, year(s) to assist in locating a suitable flywheel for your application. Please select (click) from the links listed below to view the flywheel and clutch systems available.

 
(Click link below to view)
911, 914-6 & 930 Turbo
964, 993 & 996 (GT3R)
Custom Applications


 
 


Early 911, 914-6 and 930 Turbo

Fitment:
1965 - 77 Early 911 & 914-6 w/2.0L - 2.7L, Euro 911 3.0L, & 930 3.0L Turbo
All w/ 6-bolt crankshaft & 901/914 trans.
Applications using 915 transmission- see listing & notes below

 

ULTRA-LITE Competition Flywheel

Porsche UL Flywheel Flywheel p/n Clutch Size: FW Wt. Price
505-030-140 140mm / 5.50" 4.5 lbs. $994.00
505-030-184 184mm / 7.25" 4.5 lbs. $994.00
     
 

ULTRA-LITE Competition Flywheel and Racing Clutch Kits (3)

Porsche UL Flywheel/Clutch Kit Flywheel/Clutch Kit p/n for 901/914 Clutch Size & Nr. of Discs FW/Clutch Wt. Price
505-030-140K-2D32N 140mm / 5.50", 2-disc   $1,948.00 (note 1)
505-030-184K-2D32N 184mm / 7.25", 2-disc   $1,820.00 (note 1)
Flywheel/Clutch Kit p/n for 915 (note 2)      
505-030-140K-2D41N 140mm / 5.50", 2-disc   Call (note 2)
505-030-184K-2D41N 184mm / 7.25", 2-disc   Call (note 2)
Throw-Out Bearing/Guide Tube Assy. Notes:
General- 901/914 and 915 transmissions all utilize a cable operated TOB release. 901/914 installations require a "push-type" TOB release bearing- JBR Part Nr. 551-261, while 915 installations require a "pull-type" TOB release. All applications equip with 915 transmissions require the use of a custom hydraulic TOB which is currently under design.
(1) Flywheel/Clutch Kit pricing includes TOB for 901/914 transmission applications.
(2) CALL for pricing and availability for kits designed for 915 transmission installations.
(3) All Racing clutch kits require the installation of a clutch pedal stop to prevent clutch damage due to overtravel.
Custom TOB
PN 551-260

 


 

Late 911

Fitment:
1978 - 88 911 w/ 3.0L - 3.3L 6-cyl.
All w/ 9-bolt crankshaft & 901/914 trans. w/o DME.
Applications using 915 transmission- see listing & notes below

 

ULTRA-LITE Competition Flywheel

505-020-140 Flywheel p/n Clutch Size: FW Wt. Price
505-020-140 140mm / 5.50" 4.5 lbs. $994.00
505-020-184 184mm / 7.25" 4.5 lbs. $994.00
     
 

ULTRA-LITE Competition Flywheel and Racing Clutch Kits (3)

505-020-140K-2D Flywheel/Clutch Kit p/n for 901/914 Clutch Size & Nr. of Discs FW/Clutch Wt. Price
505-020-140K-2D32N 140mm / 5.50", 2-disc   $1,948.00 (note 1)
505-020-184K-2D32N 184mm / 7.25", 2-disc   $1,820.00 (note 1)
Flywheel/Clutch Kit p/n for 915 (note 2)    
  505-020-140K-2D41N 140mm / 5.50", 2-disc   Call (note 2)
  505-020-184K-2D41N 184mm / 7.25", 2-disc   Call (note 2)
  Notes:
General- 901/914 and 915 transmissions all utilize a cable operated TOB release. 901/914 installations require a "push-type" TOB release bearing- JBR Part Nr. 551-261, while 915 installations require a "pull-type" TOB release. All applications equip with 915 transmissions require the use of a custom hydraulic TOB which is currently under design.
(1) Flywheel/Clutch Kit pricing includes TOB for 901/914 transmission applications.
(2) CALL for pricing and availability for kits designed for 915 transmission installations.
(3) All Racing clutch kits require the installation of a clutch pedal stop to prevent clutch damage due to overtravel.

 


964, 993, and 996 (GT3R)

Fitment:
1990 - up 964, 993 & 996 (GT3R)
All w/ 9-bolt crankshaft & G-50 transmission

 

ULTRA-LITE Competition Flywheel (note 1)

Porsche UL Flywheel Flywheel p/n Clutch Size: FW Wt. Price
505-010-140 140mm / 5.50" 7.5 lbs. $1,064.00
505-010-184 184mm / 7.25" 8.0 lbs. $1,064.00
     
 

ULTRA-LITE Competition Flywheel and Racing Clutch Kits

Porsche UL Flywheel/Clutch Kit Flywheel/Clutch Kit p/n Clutch Size & Nr. of Discs FW/Clutch Wt. Price
505-010-140K-3D63N 140mm / 5.50", 3-disc   $2,556.00 (note 2)
505-010-184K-2D63N 184mm / 7.25", 2-disc   $2,317.00 (note 2)
     
  Notes:
(1) Flywheel is supplied with the required ignition trigger ring.
(2) Application with G-50 transmission requires JBR custom hydraulic TOB release assembly, PN 551-265 which is supplied in the kit.
(3) All Racing clutch kits require the installation of a clutch pedal stop to prevent clutch damage due to overtravel.

 



Custom Competition Flywheels

We have built many custom flywheels for Porsche racing applications which are not categorized by model & year of the car. These flywheels include non-factory engine - transmission - ignition system combinations as well as special clutches such as Carbon - Carbon multi-disc clutch packages.
Please call to inquire for any special applications you may have.