this is a huge bit of info i found that was interesting .
Information may be a little dated, feel free to correct any mistakes.
KA24E Production 89'- 91'
KA24DE Production 91' - 98'
CA18DET Production 89' - 91'
SR20DET Production 91' - 98'
SR20DET US OEM replacement part number
Part USDM Part# (source car/motor)
Oil filter 15208-53J00 91-94 Sentra SE-R
Fuel Filter 16400-00002 1990-1996 300ZX TT
Upper injector o-ring 16618-53J00 7/95 and newer 300ZX TT (small/upper)
Lower injector o-ring 16618-10V05 7/95 and newer 300ZX TT (big/lower)
Flywheel bolts 12315-2J220 z32 TT
Front main seal 13510-53J00
Rear main seal 12279-0m300 z32 tt
rocker arms 13257-53J03 (SE-R)
Water Pump (s13)21010-52F01 (JDM #)
(s14)21010-65F26 (JDM #)
Collector Intake Gasket 14032-52F00
Intake Manifold Gasket 14035-53J00
Exhaust Manifold Gasket 14036-53J00
A.A.C. Valve Gasket 23785-50F00
CAS O-Ring 22131-50F00
Valve Seal 13207-D0111(Exhaust)
Throttle Body Gasket 16175-79S70(SE-R)
Oil Drain Washer 11026-01M02(SE-R)
Valve Cover Gasket(center) 13270-53J13(SE-R)
240sx OEM replacement part number
Part Part # (source car/motor)
tierodsleeves/Steering Boot 48203-10V25
Rear Tranny Seal 32136-U0100 (s13/14/CA/SR/KA)
Lower Shifter Boot 24216-V5000 (s13/14 ka/sr)
Fuel Pump cover O-ring 17342-01A00 (s13)
Coolant Resevior 21721-35f01 (s13)
High Pressure PS line w/ hardlline 49720 - 53F00 (s13 91-94)
Brake booster hose (3 pieces) 47471-40F00 (s13)
Pilot Bearing(pretty much for any modern Nissans) 32202-B9500 (Hitachi)
OEM NISMO part number
Part Nismo Part # (source car/motor)
Nismo Rocker Arm Stoppers 13220-RR450
Nismo motor mounts(CA) (RH)11210-RS520 (LH)11220-RS520
Nismo motor mounts(SR) (RH)11210-RS540 (LH)11220-RS540
Nismo motor mounts(CA/SR/KA) 11320-RS541
Nismo power brace 54480-RSS30 (s13)
Nismo slave cylinder 30620-RS520
Nismo clutch line 46211-RSS40 (SR)
Nismo steering rack bushing 54444-RS520 (RH s13/s14)
54445-RS520 (LH s13)
54445-RS540 (LH s14/r32/r33)
Nismo thermostat 21200-RS420
Nismo Radiator cap 21430-RS012
SR20DET OEM turbo Specs
S13 T-25 60 trim 56mm BCI-1 compressor 53.8mm 62 trim
T-25 turbine, .64 A/R turbine housing. Journal bearings.
S14 T-28 60 trim 60 mm BCI-1 compressor in T-04B housing, 62 trim 53.8mm
T-25 turbine. .64 A/R turbine housing. Ball bearing center section.
S15 T-28 60 trim 60 mm BCI-1 compressor in T-04B housing, 62 trim 53.8mm
Inco turbine .64 A/R turbine housing. Ball bearing center section.
*cast divider wall between turbine discharge and wastegate.
GTi-R T-28 60 trim 60 mm BCI-1 compressor in standard T-3 housing. 79 trim 53.8mm
Inco T-250 turbine wheel .86 A/R turbine housing. Journal bearings.
Exhaust systems are chassis-specific irregardless of engine type. This means S14 exhausts fit both KA and SR engines, for example. The only exception to this rule is that S13 CA18DE(T) exhaust systems do not fit onto SR/KA S13 chassis.
S13/14 adjustable pillowball upper mounts are interchangeable.
S13/14 coilovers are not interchangeable.
S13/14 rear upper arms are interchangeable as long as they are adjustable.
S13/14 front strut tower bars are interchangeable if the length of the strut bar can be adjusted.
s13/14 Rear strut tower bars are not interchangeable.
Z32 Calipar size Year/model
30mm iron 92.5'-96'all models
26mm aluminum 90' non-turbo
30mm aluminum 91-92.5 all models
For more detailed pictures and info of the Z32 4 piston caliper, please see this site written by Asad Aboobaker
Parts needed for the z32 brake upgrade (front)
z32 Calipers - can be located at various junkyards (rebuild is highly recommended)
Rotor - make sure you get the correct rotor for the calipers - if your 240sx is 4lug the rotors will need to be drill 4x114.3
Custom Brake Lines - many 240sx related store will carry them ie. srswap.com, pdm-racing.com, clearcorners.com
Brake Pads - use an oem shim kit
Q45 Calipar size Year/model
no info at the current time
Wheel and Offset
*Clearance of wheels for Z32 brake upgrade is entirely dependent on wheel spoke AND wheel design, NOT on offset of wheel.
-Wheel width/offset needed for clearance of coilovers is as follows (disregarding brake clearance):
6" +54 or lower
6.5" +45 or lower
7" +40 or lower
7.5" +34 or lower
8" +30 or lower
8.5" +24 or lower
9" +20 or lower
*these numbers are for the fronts only
Note that this does not take into account variations in offset calculation by manufacturer, or tire sidewall bulge. This list also does not take into account differences in design of coilovers (esp. lower brackets on coilover kits which can cause changes in wheel clearance issues). This list also only applies to the FRONT WHEELS and is intended as a GUIDE for reference.
The LARGEST wheels that will fit the front of a S13/14 with stock fenders is 9" wide. The rear can take up to 10.5" wide with a very specific offset AND must dial in negative camber. To fit large wheels one must use negative camber to ensure proper fender clearance.
Wheel BackSpacing v. Offset
Wheel Width 3.25"
0 6 12 19 25 32 38 44 51 57 63 69
-6.4 0 6 12 19 25 32 38 44 51 57 63
-12 -6 0 6 12 19 25 32 38 44 51 57
7" -19 -12 -6 0 6 12 19 25 32 38 44 51
8" -32 -25 -19 -12 -6 0 6 12 19 25 32 38
8.5" -38 -32 -25 -19 -12 -6 0 6 12 19 25 32
9" -44 -38 -32 -25 -19 -12 -6 0 6 12 19 25
9.5" -51 -44 -38 -32 -25 -19 -12 -6 0 6 12 19
10" -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6 12
10.5" -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0 6
11" -69 -63 -57 -51 -44 -38 -32 -25 -19 -12 -6 0
12" -69 -63 -57 -51 -44 -38 -32 -25 -19 -6
Hub Size Info
Chassis Hub Bolt Size
S13 front 30mm
s13/14 rear 36mm
Chassis Parts need for conversion
S13 S14SE/Z32nonturbo rear hubs
Option 1) JDM aftermarket front S13 5 lug hubs Option 2) S14 SE front hubs + S14 spindle + S14 ball joint w/LCA (and redrilling of strut for larger strut bolt).
S14 S14 SE front hubs and S14SE/Z32nonturbo rear hubs.
S13/14/15 front seats are interchangeable without any modification.
R32/33/34 front Skyline seats fit S13/14 with a minor modification to one of the mounting holes.
-For Kaaz/Nismo LSD, VLSD output shafts are required. You need two of the following: LSD output shaft 38220-52F01
-Short shifters are interchangeable b/w S13/14 KA transmission and S13/14 SR transmission.
The S13 Silvia was the first S-series car to use the J's (Jack's), Q's (Queen's), K's (King's) naming for the different trim levels.
The J's was the base model with a very basic interior, little standard equipment, and 14" steel wheels.
The Q's model is middle-of-the-road. They received many electric options and an optional LSD.
The K's received the turbocharged engines, along with all the upgrades of the Q's.
On top of the K's and Q's models, The Club Selection and Dia(mond) Selection packages came with specific options bundled together; for example, all K's Club Selections came with projector headlights, a rear spoiler, and aluminum wheels.
All the names used are references to the suits and face cards of English playing cards.
There also exists the rare Silvia A's "Almighty", introduced in late 1992. Confusingly, the Almighty fits roughly into the middle of the range. The only available engine was the naturally-aspirated SR20DE.
The S13 Silvia, introduced in mid-1988 for the 1989 model year, was immensely popular in Japan. The Silvia name was no longer used on export models, however; European models were now known as 200SX. Following industry trends, the S13 Silvia switched to relampable fixed headlights. Projector optics were offered as an option.
The Silvia fastback was discontinued, replaced by a new model, the Nissan 180SX. This left only the notchback coupe. A convertible was briefly offered soon after the start of production, but it was never popular, perhaps due to high cost (3.25 million Yen in 1988).
The S13 was one of the first uses of Nissan's multi-link rear suspension, the technology of which was previewed in concept cars in previous years, such as the Nissan MID-4. It also offered a four-wheel steering system for the first time, known as HICAS-II. In 1990, HICAS-II would be updated and renamed SuperHICAS. The S13 also saw the introduction of a viscous-type limited slip differential for some models.
S13 Silvias were initially powered by the CA18DE and CA18DET engines carried over from the end of S12 production, with an intercooler added to the CA18DET for a slight increase in power. In 1990, for the 1991 model year, the SR20DE and SR20DET engines debuted, offering improvements across the board in power, torque, and efficiency.
The S13 Silvia was discontinued after the 1993 model year, in favor of the new S14 chassis design. In 1998, the S13 Silvia was resurrected, in part. A variant was produced by Kid's Heart for Nissan called the Sileighty, which featured the 180SX body with the front end from the Silvia. The Sileighty style was originally created by Japanese enthusiasts for their own 180SXs, and is still a common modification for the 180SX and 240SX fastback.
BREAKDOWN OF THE S13 SILVIA SPECIAL EDITIONS!!
Silvia Diamond Selection
Available on Q's or K's CA18DE or CA18DET
Availale with either 5-speed manual or automatic.
Price new (converted to $) Q's diamond's $15900
K's diamond's $18600
dual Projector headlights with fogs
automatic climate control
LSD (on K's)
15" alloys with 195/60-15 tires
LSD (on Q's)
leather steering wheel
Warm White 2tone
Lime green 2tone
Bluish Silver 2tone
Silvia Club's selection
Available on Q's (SR20DE) or K's (SR20DET)
Available with either 5-speed manual or automatic
price new: K's clubs with super Hicas: $20700
Triple projector headlights with fogs
automatic climate control
rear 3-point seat belts
side impact beams
Leather steering wheel
Leather seating surfaces
Pearl clearcoat over any of the offered paint colors
Lime green two tone
Purplish silver (lavender frost) two-tone
Citrus yellow two-tone (not same as creamy yellow)
Silvia Almighty's (Ace selection)
Available late 1992 only as only model offered
Available with either 5-speed manual or automatic
cost new $14900
manual climate control
Purplish silver two-tone
Citrus yellow two-tone
The first generation of the 240SX can be divided into two distinct variants: Zenki (otherwise known as the pignose) and Chuki.
Zenki was sold under model years 1989 through 1990.
It came in two body styles: fastback (SE) and coupe (XE).
The coupe was closely related to the Japanese-market Silvia. It differed from the Silvia by having retractable headlamps (United States headlight height regulations prevented the use of the Silvia headlamp arrangement**), and a 140 hp 2.4-litre SOHC KA24E engine with 3 valves per cylinder.
The fastback was closely related to the Japanese-market 180SX, but likewise had the KA24E engine.
Four-wheel disk brakes were standard, with antilock brakes as an option on the SE. Both models were offered with either a 4-speed automatic or 5-speed manual transmission. Coupes had a Head-Up Display showing a digital speedometer as part of the optional Power Convenience Group.
This gave the car an overhaul that included mostly minor body modifications and an upgrade to the engine. The Zenki front bumper was replaced by a smoother, more modern-looking bumper, and a new (LE) hatchback trim package was added that included leather interior.
KA24E was replaced by a new DOHC KA24DE with 4 valves per cylinder that produced 15 more hp, for a total output of 155 hp
An optional sports package including a limited slip differential and Nissan's HICAS four wheel steering was added to the fastback.
In 1992, a convertible body style was added to the lineup. It was exclusive to North America and was partially assembled in Japan, with final assembly taking place in the California facilities of American Specialty Cars (ASC)
For the 1994 model year, the only available car was a Special Edition of the Convertible body style with a 4-speed automatic transmission.
courtesy nissans beta online OEM S13 catalog
OEM s14 catalog
ECU pinout diagrams.
REWIRING YOUR IGNITION COIL
Removing speed limiter on 93 KA24DET
DIY Ignition Mods for Better Spark
Sr20det Ecu Fault Codes
SR20DET ECU wiring diagram.
FAQ: KA ECU # Glossory
A long tutorial for tuning nissan's ECUs
How-To: Chip Your ECU with Pictures (KA24E)
SETTING THE BASE TIMING ON THE DOHC PROPERLY
How to build a KA24DE
How to: S13 Oil pan removal
DIY: HOW TO REPLACE YOUR DRIVE BELTS ON S13 / 91-93 240SX SE / KA24DE
How-to: Build Your Own Oil Cooler
S13 Red Top Vs. S13 Black Top - The differences
DOHC Turbo For Dummies
240sx Engine Descriptions
240SX How To: Removing/Replacing your PS pump
DIY: ITB's for your KA24DE
Basics of engine management
SR20DET Installation Guide
1993 240sx Capacities and Specifications
HOW-TO: Fix Your Timing Chain Rattle
KA24e to KA24de swap - Step-by-step.
240sx (S14) HotShot header install
Does my 240sx have a bad O2 sensor?
240sx knock sensor replacement
How to do a compression test on your engine
RB25DET into S13 Installation
Engine Knock (Detonation) Sensor Replacement (KA24DE)
How To: Convert from A/T to M/T
How to Swap Your Auto Transmission for a 5-speed
Changing transmission fluid / oil on s13
How to install paddle shift on an automatic 240SX
240sx Clutch and Flywheel Swap
S14 auto -> manual with pics
REWIRING YOUR WALBRO 255 FUEL PUMP ON S14's
240sx: Installing a Walbro Fuel Pump
240sx: Replacing Your KA24DE Fuel Injectors
DIY: Installing an injector resistor box
Nitrous Oxide FAQ
HOW TO NEVER OVERBOOST AGAIN
Bobby's DIY turbo oil feed/return lines install
Turbo rebuild DIY
Turbocharging your automatic-trans car
Changing differential oil/fluid, 92 240sx, synthetic gear oil, open differential
The Definitive 300ZX Brake Swap!
Advanced Suspension Definitions
Rear differential swaps for the 240sx
Rexbo’s Guide to the s13 to s14 Front 5-Lug Conversion
Rexbo's Guide To Brake Caliper Rebuilding
240sx curb weights
All you ever wanted to know about differentials
Upgrading to J30 Brakes
Removing the S13 Door Panel Fabric
Low-budget seat modification for S13
Re-covering Your S13 Glove Box
DIY: Window regulator repair 5$
DIY: Dye That Ugly Carpet!!!!! W/pics
Water leaking into trunk (240sx fastback)
HOW TO: Repaint Headlight Housing (Black)
DIY: Replacing Your Rusted Hatch
240sx Conversions - An Introduction
Sleepy Eyes walkthru (VID)
240sx Vented Hood DIY
Rust removal, Fiberglassing, and Body Filler
DIY: Silvia Foglight Wiring
All-red S13 Taillights
Restoring your Nissan's paint
240sx power antenna repair
Article: General car cleaning/detailing tips
Factory Service Manuals/Diagrams
Factory Service Manuals (FSMs)
Your home for factory service manuals
Parts Lists / Diagrams / Setting Sheets
How Manual Transmissions Work
How Differentials Work
How Turbochargers Work
What is the difference between a turbocharger and a supercharger on a car's engine?
How Car Engines Work
How Clutches Work
How Car Computers Work
How Fuel Injection Systems Work
How Car Suspensions Work
How Anti-Lock Brakes Work
How Master Cylinders and Combination Valves Work
What does it mean when a car has dual overhead cams?
How Camshafts Work
Sidewall rating is relative to the width of the tire. If you had a car with a stock tire size of 225/60/16, the 60 side wall would be 60% of the 225mm width. Roughly 225mm = 9 inches and roughly 60% of 9 inches is 5.3 inches. And if you can figure that out 5.3*2 = 10.6 inches + 16 inches for the diameter of the wheel, the stock tire diameter is 26.6 inches tall. So now you need to find tires that are 26.6 inches tall but in a 245/XX/18. It’s just a simple math problem to figure it out if you don’t have a computer to access the link above
Speed rating/Load Index
The speed rating is the Letter that is included in your tire size. Eg: 245/40/VR17.
M 81 mph 130 km/h
N 87 mph 140km/h Temporary Spare Tires
P 93 mph 150 km/h
Q 99 mph 160 km/h Studless & Studdable Winter Tires
R 106 mph 170 km/h H.D. Light Truck Tires
S 112 mph 180 km/h Family Sedans & Vans
T 118 mph 190 km/h Family Sedans & Vans
U 124 mph 200 km/h
H 130 mph 210 km/h Sport Sedans & Coupes
V 149 mph 240 km/h Sport Sedans, Coupes & Sports Cars
W 168 mph 270 km/h Exotic Sports Cars
Y 186 mph 300 km/h Exotic Sports Cars
The higher the tire's load index number, the greater its load carrying capacity.
89 = 1,279 pounds
88 = 1,235 pounds
87 = 1,201 pounds
86 = 1,168 pounds
85 = 1,135 pounds
A tire with a higher load index than that of the Original Equipment tire indicates an increase in load capacity. A tire with a load index equal to that of the Original Equipment tire indicates an equivalent load capacity. A tire with a lower load index than the Original Equipment tire indicates the tire does not equal the load capacity of the original.
Load Index Pounds Kilograms Load Index Pounds Kilograms
71 761 345 91 1356 615
72 783 355 92 1389 630
73 805 365 93 1433 650
74 827 375 94 1477 670
75 853 387 95 1521 690
76 882 400 96 1565 710
77 908 412 97 1609 730
78 937 425 98 1653 750
79 963 437 99 1709 775
80 992 450 100 1764 800
81 1019 462 101 1819 825
82 1047 475 102 1874 850
83 1074 487 103 1929 875
84 1102 500 104 1984 900
85 1135 515 105 2039 925
86 1168 530 106 2094 950
87 1201 545 107 2149 975
88 1235 560 108 2205 1000
89 1279 580 109 2271 1030
90 1323 600 110 2337 1060
These sizes are for slight oversize, perfect fit or slight stretch. Obviously there can be more extreme stretches and oversizes but these are the ones you should know.
Increase front and rear rate - Ride harshness increases; tires may not follow bumps causing reduced traction. Roll resistance increases.
Increase front rate only - Front ride rate increases. Front roll resistance increases, increasing understeer or reducing oversteer.
Increase rear rate only - Rear ride rate increases. Rear roll resistance increases, increasing oversteer or reducing understeer.
Decrease front and rear rate - Ride harshness decreases; tires follow bumps more effectively, possibly improving traction. Roll resistance decreases.
Decrease front rate only - Front ride rate decreases. Front roll resistance decreases, decreasing understeer or increasing oversteer.
Decrease rear rate only - Rear ride rate decreases. Rear roll resistance decreases, decreasing oversteer or increasing understeer.
Antiroll Bar Changes (aka sway bar)
Modification - Effect on Suspension
Increase front rate - Front roll resistance increases, increasing understeer or decreasing oversteer. May also reduce camber change, allowing better tire contact patch compliance with the road surface, reducing understeer.
Increase rear rate - Rear roll resistance increases, increasing oversteer or decreasing understeer. On independent rear suspensions, may also reduce camber change, allowing better contact patch compliance with road surface, reducing oversteer.
Decrease front rate - Front roll resistance decreases, decreasing understeer or increasing oversteer. More body roll could reduce tire contact patch area, causing understeer.
Decrease rear rate - Rear roll resistance decreases, decreasing oversteer or increasing understeer. On independent rear suspensions, more body roll could reduce tire contact patch area, causing oversteer.
Note - Remember to consider the construction of the sway bar and the endlinks. A solid sway bar has more resistance than a hollow bar of the same diameter. Also the addition of solid or polyurethane endlinks will artificially raise the diameter of the bar in terms of effectiveness.
Shock Absorber Changes (aka your struts)
Modification - Effect on Suspension
Rebound - The dampers resistance when the suspension is de-compressing (when you turn right the right side suspension is in rebound)
Bump - The dampers resistance when the suspension is compressing (when you turn right the left side suspension is in bump)
Increase rebound and bump rates - Ride harshness increases.
Increase rebound rates only - On bumps, tires may leave track surface.
Increase bump rates only - Body roll resisted; outside tire loaded too quickly; car won't stabilize into a turn.
Decrease rebound and bump rates - Ride harshness decreases; car may float over bumps.
Decrease rebound rates only - On bumps, tires follow track surface more effectively; car may continue to oscillate after bumps.
Decrease bump rates only - Body rolls quickly; car is slower to respond to turn-in.
How do I correct my suspension geometry?
Note: Almost every aftermarket arm has a solid rod end which replaces the worn stock rubber bushing. This increases road noise somewhat, but drastically increases the response of the suspension. It also reduces the compliancy of the suspension, which reduces the change in geometry when the suspension is bumped. This creates a much more stable feel in the car especially when cornering.