NISSAN FACTORY
COMPETITION ROADSTER
PARTS
Above image from
1969 Datsun Competition Bulletin
In the USA, Yutaka Katayama was extremely keen
to see the roadster in competition. In the early days he was gratified that
a number of amateur racers identified the potential of the 1500 and
that tricks and modifications were soon filtering around the SCCA circuit
- gradually, the factory enlarged it's competition parts bin, and with a
mixture of random factory parts and the experience of the amateur racers,
the roadster would soon be enjoying success.
Factory photo showing 1500 with Weber
carbs
and oil cooler
Factory improvements to the 1500 were largely
limited to the engine. Weber carbs for the 1500 were available, although
whether these reached the USA it is not known. An expensive oil cooler
was also produced and this was sent over to both east and west coasts.
In the meantime Nissan Motor Corporation also sought the experience of the
likes of Bob Sharp to develop parts and modifications alongside the factory.
Bob produced his competition manual with the assistance of the factory and
became a competition consultant to Nissan.
By the time a factory parts list was available,
Nissan had engaged both Bob Sharp and Dwayne Feuerhelm's Auto Works as authorised
distributors. Both distributors also produced their own lists (offering
non-factory parts) and Nissan were so keen to see success that they incorporated
these lists in their own catalogues for the benefit of all would be
racers.
Bulletins were also issued by Nissan from time
to time offering new information on race preparation and details of new factory
parts.
Factory competition parts catalogs were frequently
updated. Nissan still produces one today, under the Nissan Motorsports banner.
Early catalogs and bulletins are now sought after.
Below are listed the main factory competition
parts available during the 1960s, a list that roadster owners would
die for today. Many of the parts are no longer available, and those
that are still listed are very expensive.
ENGINE |
|
Solex Carburettors
The U20 44m Mikuni/Solex induction system includes 44mm carbs, intake
manifold, insulators, linkage, gaskets, hoses and choke cable -
to produce 150hp the Solex camshaft should be installed (see below)
- optional trumpets shown.
Part Numbers
99996-C1040 - U20 Induction Kit
16500-25501 - Air Cleaner Assembly
16546-25500 - Element |
|
|
Camshafts
The R16 cam (.480"/300degree) requires competition valve spring
set and new lifters.
The U20 (Solex) cam (.456"/280degree) requires new rocker arms
and an oil gallery plug.
Part Numbers
99996-B1021 - R16 Race camshaft
13001-25500 - U20 Solex camshaft |
|
No picture available |
Forged Race Pistons
The piston requires clearance of .006" to .008" and a
pin clearance of .0008" to .0011".
Part Numbers
99996-C1031 - Piston
99996-B1041 - Ring set |
|
No picture available |
Rod
& Main Bearings
High performance tri-metal design
Part Numbers
12111-25510 - R16/U20 Rod Bearing
12207-73600 - R16 3-Main Bearing set |
|
|
Oil
Cooler Kit
An oil cooler kit for 1500, 1600 and 2000 roadsters.
The kit could be mounted behind the grille or under the front
valance with a purpose built air scoop. Complete with 'Datsun
Fairlady' cover for winter use.
Part Number
21300-25510 - Oil Cooler
Kit |
|
|
Competition Oil
Pan - (in aluminium).
7.5 quart pan with baffling and windage tray for both the
1600 and 2000 roadster.
Part Number
11110-25500 -
Oil Pan |
|
|
Competition Oil
Pan Insert
Equipped with trapdoor style baffling
and improved windage tray.
Part Number
99996-C1133 - Insert |
GEARBOX |
No picture available |
Close Ratio
Gearbox
Available for both 1600 and 2000 models.
Kits were available for converting the standard
5-speed and 4-speeds to close ratio setups.
Part Numbers
32213-A1101 - Cluster Gear
(4 speed)
NMCRK-32011 - 5 speed kit |
DIFFERENTIAL |
|
Limited Slip Differential
Ratios ranged from 3.70:1 to 5.13:1
Ring and pinion sets of 4.11:1 to 5.13:1 were also
available.
Part Numbers
38420-A9980 - L/S Assy
for 4.11 R&P set
38430-16330 - L/S Assy for 5.13 R&P set |
SUSPENSION |
|
Suspension Sets and
Components
Sets available with either intermediate or stiff springing - include
sway bar of either 21mm or 23mm in diameter - the sets lowered the roadster
by between 1 3/4 and 2 inches.
Part Numbers
Various |
These pages, unless otherwise stated, are
copyright ©1999 - 2001, Rob Beddington
& The Classic Fairlady Roadster Register. Do not redistribute in
any form without the prior permission of the owner. |