Porsche Engine / Transmission Components |
| JB Racing is proud to offer an array of high-quality
custom engine & drive train components designed to improve
both the performance and reliability of Porsche 6-cyl. air-cooled
engines. Experience gained during many years of building high-performance
racing engines has led to the development of a variety of engine
products, such as our Aluminum Fin-Iron Sleeve Cylinders, Piston
and Rod combinations, Solid Timing Chain Tensioners, Adjustable
Camshaft Sprockets, Billet Twin-Plug Distributors, Custom Fittings,
Valve Train components and more...
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PN 157-001*
Billet Intermediate Bearing Plate for 901/911/914 Transmissions |
Note:
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*
Products noted have been developed in conjunction with: |
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PN 131-095 *
Intermediate Shaft Straight-Cut Gear Set |
PN 131-200
Aluminum Fin-Iron Sleeve Cylinder Set |
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PN 131-001
Solid Timing Chain
Tensioners |
PN 131-020
Adjustable
Cam Sprocket Set |
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Aluminum Fin-Iron Sleeve Cylinders
Our aluminum fin-iron sleeve cylinders are now available in many
bore sizes and cylinder head configurations to suit most Porsche
6-cyl. air-cooled competition engine requirements. These beautifully
finished cylinders are CNC machined in-house from billet aluminum
and feature additional fins and fin surface area to provide the
added cooling capacity desired for all racing applications. The
iron sleeves provide enhanced performance by maintaining a more
rigid and consistent bore shape, thus improving ring seal and
reducing "blow-by". These cylinders are now available
outright without any core exchange requirements.
Our cylinder line includes bore sizes ranging from 80.0 to 102.0mm.
Should you have special requirements, please call for assistance.
We can manufacture custom cylinders upon request. |
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PN 131-200
Cylinder Set |
Cylinder w/ Fitted
Custom JE Piston |
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Cylinder Size(s) |
Engine Size |
Cylinder Head |
Engine Case |
Case Spigot Size |
Part Number |
Price Per Set (6) |
| Bore range 80.0 - 84.0mm |
2.0L |
2.0L |
Aluminum/ Magnesium |
92.0 Slip-in |
131-200-6 |
$2,850.00 |
| Bore range 80.0 - 84.0mm |
2.0 thru 2.4L |
2.2 - 2.7L |
Aluminum/ Magnesium |
92.0 Slip-in |
131-202-6 |
$2,700.00 |
| Bore range 84.0 - 90.0mm |
2.4 thru 2.7L |
2.4 - 2.7L |
Aluminum/
7R Magnesium |
97.0 Slip-in |
131-204-6 |
$2,700.00 |
| Bore range 90.0 - 93.0mm |
2.7 thru 2.9L |
2.7L |
Aluminum/
7R Magnesium |
98.5 Custom |
131-206-6 |
$2,850.00 |
| Bore range 93.0 - 95.0mm |
3.0 thru 3.2L |
3.0 - 3.3L |
3.0 Liter |
103.0 Slip-in |
131-208-6 |
$2,700.00 |
| Bore range 95.0 - 98.0mm |
3.0L |
3.0 - 3.3L |
3.0 Liter |
105.0 Custom |
131-210-6 |
$2,700.00 |
| Bore range 98.0 - 100.0mm |
3.2L |
3.0 - 3.3L |
3.0 Liter |
105.0, 107.0 Custom |
131-212-6 |
$2,850.00 |
| Bore range 98.0 - 100.0mm |
3.6L |
3.6L |
3.6 Liter 964 Case |
107.0 Slip-in |
131-214-6 |
$2,992.50 |
| Bore range 100.0 - 102.0mm |
3.8L |
3.6 - 3.8L |
3.6 Liter 964 Case |
109.0 Custom |
131-216-6 |
$2,992.50 |
| Notes: |
- Cylinders are designed with maximum wall thickness therefore
some cylinders will require case modifications
- Cylinders are available in complete sets (as listed above) or
on an individual basis as required.
- All cylinder PN's 131-200 thru 131-212 are machined using the
3.0 Liter fin configuration and require the use of 3.0L sheet
metal baffling.
- All dimensions are metric
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Engine Components
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PN 131-020
Adj. Cam Sprocket Kit |
PN 131-001
Solid Timing Chain Tensioners |
PN 131-020 & 131-002
Sprocket & Tensioner Installed |
PN 131-021 & 131-022
Cam Sprocket Bolts & Washers |
PN 131-095 *
Intermediate Shaft Gear Set |
PN 151-020
ITG Filter Baseplate for PMO Carb |
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Description |
Application |
Part Number |
Price |
| Solid Timing Chain Tensioners (set) w/ spacers |
1966-81 Early Model 911 |
131-001 |
$165.00 |
| Solid Timing Chain Tensioners (set) w/ spacers |
1982-89 Late Model 911 |
131-002 |
$165.00 |
| Replacement Spacer for Solid Timing Chain Tensioners (each) |
1966-89 911 Engines |
131-006 |
$6.75 |
| Adj. Cam Sprocket Kit - w/ Steel Hubs & Sprocket (see notes) |
All 911 Engines |
131-020 |
$393.75 |
| Adj. Cam Sprocket Kit - w/ Steel Hubs & Aluminum Sprockets (see notes) |
All 911 Engines |
131-026 * |
$393.75 |
| Cam Sprocket Washer - each (See note 1) |
All 911 Engines |
131-021 |
$21.00 |
| Cam Sprocket Bolt - each (See note 1) |
All 911 Engines |
131-022 |
$2.63 |
| Cam Sprocket Nut - each (See note 2) |
All 911 Engines |
131-023 |
$21.00 |
| Intermediate Shaft Straight-Cut Steel Gear Set |
All 911 Engines |
131-095 * |
$1,170.00 |
| ITG Filter Baseplate for PMO 40, 46 or 50mm Carburetors (each) |
Porsche 911/914 Chassis
(symmetrical) |
151-020 |
$41.25 |
| ITG Filter Baseplate for PMO 40, 46 or 50mm Carburetors (each) |
Porsche 911/914 Chassis (24mm offset) |
151-021 |
$41.25 |
| Notes: |
- Used with 131-020 & 131-025 Adjustable Cam Sprocket kits
when installed with Late Model (1978-98) "bolt-drive"
cams. Required only if factory bolts & washers are not available
- factory bolt & washer may be used.
- Required for installation of Adjustable Cam Sprockets with
Early Model (1977 and earlier) "nut-drive" cams. (1978
was a transition year and both cam types were used)
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Engine Fittings
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PN 131-003
Sensor Port Plug |
PN 131-004
Oil Inlet Adapter Kit |
PN 131-094
Oil Outlet Fitting |
PN 131-030
Cam Housing Oil Fittings |
PN 131-031
Oil Temp. Block "Banjo" Fittings |
PN 131-032
Engine Case "Banjo" Bolts |
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PN 131-003
Sensor Port Plug - Installed |
PN 131-004
Oil Inlet Adapter - Installed |
PN 131-005
Reverse Light Switch Plugs |
PN 131-035
Oil Pressure Adapter Fittings |
PN 131-033
Aluminum Plugs 12mm x 1.0mm |
PN 131-034
Aluminum Plugs 12mm x 1.5mm |
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Description |
Application |
Part Number |
Price |
| Oil Inlet Adapter Kit (Aluminum), AN-16 - w/ studs & hardware |
All 911 Engines |
131-004 |
$97.50 |
| Oil Inlet Adapter Kit (Aluminum, AN-12 - w/ studs & hardware |
All 911 Engines |
131-093 |
$97.50 |
| Oil Outlet Adapter Fitting, AN-16 |
All 911 Engines |
131-094 |
$48.00 |
| Sensor Port Plug (Aluminum), 14.0mm x 1.5mm x 19mm Hex |
All 911 Engines |
131-003 |
$ 6.75 |
| Reverse Light Switch Plug, 18.0mm x 1.5mm x 25mm Hex |
All 911 Engines |
131-005 |
$ 9.75 |
| Cam Housing Oil Fitting, 12.0mm x 1.0mm x AN-6 |
All 911 Engines |
131-030 |
$24.75 |
| Oil Temperature Block "Banjo" Fitting, 12.0mm x 1.0mm x AN-6 |
All 911 Engines |
131-031 |
$29.85 |
| Eng. Case "Banjo" Bolt, 12.0mm x 1.0mm x 19mm Hex |
All 911 Engines |
131-032 |
$24.75 |
| Aluminum Plug, 12.0mm x 1.0mm x 19mm Hex |
All 911 Engines |
131-033 |
$ 6.75 |
| Aluminum Plug, 12.0mm x 1.5mm x 19mm Hex |
All 911 Engines |
131-034 |
$ 6.75 |
| Oil Pressure Adapter, 18.0mm x 1.5mm x 1/8 FPT x 25mm Hex |
All 911 Engines |
131-035 |
$14.25 |
| Alternator/Fan Pulley Washer, 16mm dia. shaft (See note 1) |
All 911 Engines |
131-010 |
$18.75 |
| Alternator/Fan Pulley Washer, 17mm dia. shaft (See note 1) |
All 911 Engines |
131-011 |
$18.75 |
| Notes: |
- Replacements for OEM Alternator/Fan Pulley Washers which are
no-longer-available from Porsche
- General note- Aluminum plugs listed above may also fit other
applications
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Ignition Components
Porsche 911 Twin-Plug Distributors
Our new 12-Pin, Twin-Plug Distributors for Porsche 911 based
engines are now offered in two configurations. One contains internal
ignition triggering with an adjustable (+28 degrees) advance curve
while the other is designed specifically for crank-triggered ignition
systems. All distributor housings are one-piece; CNC machined
from billet aluminum and incorporate ball bearings, bronze bushings
and internal shaft seals. Distributors are available in both small
and large diameter housings for use in early and late model engine
cases. These new distributors are supported with an array of auxiliary
components to complete and enhance your installation. We anticipate
the introduction of additional items in this section during the
next few months. |
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PN 153-000-xxxx*
Twin-Plug Distributor Int.-Triggered |
PN 153-001-xxxx*
Twin-Plug Distributor Ext.-Triggered, w/ PN 153-101 Sensor Kit |
PN 153-100
Crankshaft Trigger Wheel & Pulley |
PN 153-015CW
Distributor Cap for Clock-wise Rotation Distributors |
PN 153-150
Lower Spark Plug Boot Retainer Clips - Set of 6 |
PN 153-151
Ignition Wire Loom w/ Rubber Grommet |
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Description |
Part Number |
Price |
| Twin-Plug Distributor w/ internal magnetic pick-ups, complete w/ bracket
(note 1) |
*153-000-xxxx |
$1,500.00 |
| Twin-Plug Distributor for external ignition trigger(s), complete w/ bracket
(notes 1,2) - Coming Soon |
*153-001-xxxx |
$1,200.00 |
| Twin-Plug Distributor Cap w/ wiring placard - replacement for all (CW)
rotation distributors |
153-015CW |
$127.50 |
| Twin-Plug Distributor Cap w/ wiring placard - replacement for all (CCW)
rotation distributors |
153-015CCW |
$127.50 |
| Twin-Plug Distributor Rotor - replacement |
153-016 |
$70.50 |
| Crankshaft Trigger Wheel - complete w/ pulley and bracket set - Coming
Soon |
153-100 |
$390.00 |
| Pick-Up Sensor & Harness for externally triggered distributors (PN
*153-001-xxxx) - Coming Soon |
153-101 |
Call |
| Lower Spark Plug Boot Retainer Clips - set of 6 |
153-150 |
$60.00 |
| Ignition Wire Loom (8mm mtg. hole) w/ rubber grommet - each |
153-151 |
$15.00 |
| Ignition Wire Loom (6mm mtg. hole) w/ rubber grommet - each |
153-152 |
$15.00 |
| Ignition Wire Loom Set - Consists of: (1) PN 153-151 and (4) PN 153-152 |
153-155-5 |
$67.50 |
| Notes: |
* See matrix below for complete Distributor Part
Number listings and descriptions
- Internally triggered distributors contain a user adjustable
advance curve - 0 to +28 crankshaft degrees.
- Distributors for externally triggered ignition systems require
Pick-Up Sensor & Harness (PN 153-101) and Crankshaft Trigger
Wheel (PN 153-100) to complete the installation.
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Distributor Part Number(s) Matrix
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Distributor Rotation |
Ign. Trigger Pick-up |
Case Hole/Shaft Size
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Distributor Gear Diameter
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Clockwise |
Counter-Clockwise |
Internal
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External
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Sm (27mm)
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Lg (30mm)
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Sm (25.15mm)
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Lg (25.75mm)
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| 153-000-CWSS |
153-000-CCWSS |
X |
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X |
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X |
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| 153-000-CWLS |
153-000-CCWLS |
X |
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X |
X |
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| 153-000-CWLL |
153-000-CCWLL |
X |
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X |
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X |
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| 153-001-CWSS |
153-001-CCWSS |
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X |
X |
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X |
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| 153-001-CWLS |
153-001-CCWLS |
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X |
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X |
X |
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| 153-001-CWLL |
153-001-CCWLL |
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X |
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X |
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X |
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Valve Train - Springs - Retainers
JB Racing has developed performance valve springs and steel
valve spring retainers necessary to maintain critical valve
train integrity in high revving Porsche 6 cylinder air-cooled
engines. We use these super-strong steel retainers in all or
our endurance racing engines for their reliability. These retainers
are custom designed for use with OEM 7° valve stem locks
and our Dual Valve Springs. All Retainers and Spring Cups are
machined with generous radii in the appropriate locations for
additional strength and are heat treated for strength and durability.
Our Dual Valve Springs are designed to be installed using JBR
Steel Retainers and Valve Spring Cups. Springs are supplied
already detailed and prepped for installation. These springs
are rated as follows: 95 lbs/seat pressure at an installed height
of 1.600" and provide 280 lbs./open pressure at .500"
lift.
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PN 131-070-12
Valve Spring Set |
Spring set w/ Retainers
and Spring Cups |
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Description |
Application |
Part Number |
Price |
| Valve Spring Cup Set (12) (See notes) |
All 911 Engines |
131-050-12 |
$150.00 |
| Steel Valve Spring Retainer Set (12) - 9mm V. stem |
All 964 & earlier Engines |
131-060-12 |
$191.25 |
| Steel Valve Spring Retainer Set (12) - 8mm V. stem |
All 911 Engines |
131-062-12 |
$191.25 |
| Competition Valve Spring Set (12) (See notes) |
All 911 Engines |
131-070-12 |
$252.00 |
| Notes: |
- JBR spring cups and valve springs may be installed on OEM cylinder
heads without any modifications. OEM valve spring shims and valve
seals may also be used.
- Valve Springs require use of JBR Spring Cups PN 131-050-12.
Springs will not fit in the OEM spring cups.
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Transmission
This custom designed & manufactured billet aluminum bearing
plate replaces the weak OEM Porsche cast intermediate bearing
plate used in the 901 / 911 / 914 transmissions. The stock bearing
plate has a tendency to deform under high horsepower loads which
often leads to transmission failure. |
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| PN 157-001 * |
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Description |
Application |
Part Number |
Price |
| Billet Aluminum Intermediate Bearing Plate |
901 / 911 / 914 Transmissions |
157-001 * |
$390.00 |
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