MR2 Bible
Contents
Mk2 · 1989 – 1999

SW20.

Five revisions, four markets, two generations of 3S-GTE in the JDM.

At a glance

Production
JDM December 1989 – 1999. UK April 1990. US through 1995.
Engines
3S-FE base · 3S-GE NA · 3S-GTE turbo (JDM/USDM) · 5S-FE (US SW21)
Bolt pattern
5×114.3, 60.1 mm centre bore
Markets
JDM, USDM, UK, Euro — treated separately throughout

Timeline

  1. 1989-12

    JDM SW20 launch

  2. 1990-04

    UK launch

  3. 1991-12

    Rev 2 JDM changeover

  4. 1992-03

    UK Rev 2 launched

  5. 1993-11

    Rev 3 JDM changeover

  6. 1994-03

    UK Rev 3 launched

  7. 1994-02

    3S-GTE Gen 3 supplement published

  8. 1995

    Final US model year

  9. 1996-02

    UK 10th Anniversary special — Rev 3 spec

    Rev 3 spec, NOT Rev 4. UK owners with 1996 cars often assume Rev 4 — they do not have it.

  10. 1996-06

    Rev 4 JDM changeover

  11. 1997-12

    Rev 5 JDM only

  12. 1999

    Production ends

Rev 1 · Introduction

Rev 1 · JDM 1989-12

The original SW20. JDM December 1989, UK April 1990. 3S-GTE Gen 2 turbo for JDM and USDM; 3S-GE NA for JDM and UK; 3S-FE base in UK. Pop-up headlamps, three-piece rear lamps, three-piece rear wing.

Rev 1

Engine, by market

Three engine families across four markets at launch. UK was naturally aspirated only — the country never officially sold a turbo SW20.

Turbo engine
  • JDM 3S-GTE Gen 2 · 225 PS · CT20 turbo · side-mount intercooler · TCCS ECU
  • USDM 3S-GTE · ~200 hp
  • UK not offered
  • Euro not offered

All UK turbo SW20s are JDM grey imports; Toyota UK never officially sold a turbo.

RM179U1 + Toyota UK launch pack OEM manual

NA engine
  • JDM 3S-GE · 165 PS · twin-cam
  • UK 3S-GE · 158 bhp
  • USDM 5S-FE · ~130 hp · SW21 chassis

Toyota UK 1990 launch pack Factory documented

Base engine (UK only)
3S-FE · 119 bhp

Toyota UK 1990 launch pack Factory documented

Rev 1

Suspension and brakes

Front caster
2°45'

Toyota UK 1990 launch pack Factory documented

Steering ratio
20.5:1

Toyota UK 1990 launch pack Factory documented

Steering — turns lock to lock
3.7

Toyota UK 1990 launch pack Factory documented

Front brake disc
258 mm × 25/24 mm — vented

The front is vented and substantially thicker than the rear; combined with a larger-piston caliper it does the bulk of the braking despite the slightly smaller diameter (mid-engined weight bias makes the rear disc usable a notch larger by diameter alone).

Toyota UK 1990 launch pack + MR2OC brake FAQ Factory documented

Rear brake disc
263 mm × 16 mm — solid

Solid (non-vented) rotor. Diameter slightly larger than the front to suit the rearward weight bias of the mid-engined chassis; thickness and caliper sizing are smaller than the front.

Toyota UK 1990 launch pack + MR2OC brake FAQ Factory documented

Rear anti-roll bar
18.0 mm diameter

Toyota UK 1992 revision pack (referenced as Rev 1 spec) Factory documented

Front suspension
MacPherson strut

OEM manual OEM manual

Rear suspension
MacPherson strut

OEM manual OEM manual

Rev 1

Wheels and tyres

Front wheel
14×6J

Toyota UK 1990 launch pack Factory documented

Rear wheel
14×7J

Toyota UK 1990 launch pack Factory documented

Front tyre
195/60R14

OEM manual SA-3 + Toyota UK launch pack OEM manual

Rear tyre
205/60R14

OEM manual SA-3 + Toyota UK launch pack OEM manual

Wheel bolt pattern
5×114.3

Not press-pack stated; cross-referenced from EPC and community.

Toyota EPC and community Factory-derived

Wheel offset
ET45

Toyota EPC and community Factory-derived

Centre bore
60.1 mm

Toyota EPC and community Factory-derived

Lug-nut thread
M12×1.5 · 60° tapered seat

OEM manual OEM manual

Rev 1

Interior and exterior

Headlamps
Pop-up (unchanged through all revisions)

Toyota UK launch pack Factory documented

Rear lamps
Three-piece unit / Zenki design

Toyota UK launch pack Factory documented

Rear wing
Three-piece design

Toyota UK launch pack Factory documented

Front fog lamps
Yellow-tint lens (changed at Rev 2)

Toyota UK launch pack Factory documented

Roof options
  • UK Sunroof or T-Bar
  • JDM Hardtop and T-top
  • USDM Hardtop and T-top

Toyota UK launch pack Factory documented

Driver airbag
  • JDM not offered at launch
  • UK not offered at launch
  • USDM standard

Period brochures Factory-derived

Rev 2 · First important changes

Rev 2 · JDM 1991-12

The biggest chassis step-change in the SW20's life. Quicker steering, larger brakes, revised geometry, lowered ride height, 15-inch wheels. Toyota UK documents the changes in full in the 1992 revision pack.

Rev 2

Engine — by market

Turbo engine (JDM)
3S-GTE Gen 2 unchanged · 225 PS

OEM manual + Toyota brochures OEM manual

NA engine (UK)
3S-GE revised · 154 bhp (catalyst-era reduction from 158)

Toyota UK 1992 pack Factory documented

NA engine (JDM)
3S-GE unchanged · 165 PS

Period Toyota literature Factory-derived

Base engine (UK)
3S-FE unchanged · 119 bhp

Toyota UK 1992 pack Factory documented

Rev 2

Suspension and brakes — comprehensive changes

Steering ratio
17.6:1 (was 20.5:1) — significantly quicker

Toyota UK 1992 pack Factory documented

Ride height
Lowered 10 mm vs Rev 1

Toyota UK 1992 pack Factory documented

Front brake disc
276 mm × 30/28 mm — vented (was 258 mm × 25/24 mm)

Both diameter and thickness increased at Rev 2; the front gains substantially more sweep area and cooling capacity than the diameter alone suggests.

Toyota UK 1992 pack + MR2OC brake FAQ Factory documented

Rear brake disc
281 mm — solid (was 263 mm)

Diameter increased at Rev 2; remains a solid (non-vented) rotor.

Toyota UK 1992 pack + MR2OC brake FAQ Factory documented

Rear anti-roll bar
17.5 mm (was 18.0 mm — reduced)

Toyota UK 1992 pack Factory documented

Front anti-roll bar
Diameter increased vs Rev 1

Toyota UK 1992 pack Factory documented

Rear lateral links
98 mm longer than Rev 1

Car and Driver period road test Factory-derived

Rear trailing-arm pickup
Raised 3 mm

Car and Driver period road test Factory-derived

Front tie-rod
Increased diameter

Toyota UK 1992 pack Factory documented

Damper settings
Revised front and rear

Toyota UK 1992 pack Factory documented

Front lower-arm part numbers
48068 / 48069-17030 (was -17020)

Toyota EPC — break at SW20-0059266 Factory-derived

Rear suspension member
51206-17020 (was -17010)

Toyota EPC — break at SW20-0059266 Factory-derived

VIN break
Rev 1 to SW20-0059265 · Rev 2 from SW20-0059266

Toyota EPC Factory-derived

Rev 2

Wheels, tyres and exterior

Front wheel
15-inch (was 14×6J) — new five-spoke alloy

Toyota UK 1992 pack Factory documented

Rear wheel
15-inch staggered (was 14×7J)

Toyota UK 1992 pack Factory documented

Front tyres (UK GT/T-Bar)
195/55R15 (was 195/60R14)

Toyota UK 1992 pack Factory documented

Rear tyres (UK GT/T-Bar)
225/50R15 (was 205/60R14)

Toyota UK 1992 pack Factory documented

Front fog lamps
Clear lens (was yellow tint)

Toyota UK 1992 pack Factory documented

Front bumper
Revised with clear fogs

Toyota UK 1992 pack Factory documented

Rev 2

Interior

Steering wheel
Smaller diameter

Toyota UK 1992 pack Factory documented

Handbrake lever
Leather-trimmed

Toyota UK 1992 pack Factory documented

Audio
Additional bass speaker added behind driver's seat

Toyota UK 1992 pack Factory documented

Rev 3 · Second important revision

Rev 3 · JDM 1993-11

Biggest visual facelift and most significant engine refresh outside the JDM turbo. JDM gets the 3S-GTE Gen 3 (245 PS, CT20B) — confirmed by the February 1994 Toyota supplement. The USDM continues an updated Gen 2, NOT Gen 3. UK NA jumps from 154 to 173 bhp.

Rev 3

Engine — major changes

The single biggest editorial trap on this revision: USDM Rev 3 turbo is updated Gen 2, not Gen 3. The US never received Gen 3 in the SW20.

Turbo engine
  • JDM 3S-GTE Gen 3 · 245 PS · CT20B · revised ECU + new injection
  • USDM 3S-GTE Gen 2 (updated) · ~200 hp — NOT Gen 3

Critical distinction. 'Gen 1 through Gen 4' is community taxonomy; Toyota's docs use supplement chains. SW20 production cars used Gen 2 and Gen 3 only.

3S-GTE Repair Manual Supplement, Feb 1994 OEM manual

NA engine
  • JDM 3S-GE Gen 3 · 185 PS — revised
  • UK 3S-GE · 173 bhp (was 154) · compression 10.3:1 · new head, induction, fuelling, lubrication

Toyota UK 1994 pack Factory documented

Final US model year
1995 — US sales of the SW20 ended

ImportArchive + community Factory-derived

Rev 3

Suspension and brakes

Front suspension brackets
Revised

Toyota UK 1994 pack Factory documented

Rear suspension brackets
Revised

Toyota UK 1994 pack Factory documented

Damper valving
New low-speed damping valves front and rear

Toyota UK 1994 pack Factory documented

ABS (UK GT and GT T-Bar)
Standard

Toyota UK 1994 pack Factory documented

Brake hardware
No dimensional change confirmed

Toyota UK 1994 pack — absence of mention Factory documented

Rev 3

Exterior — the facelift

Rear lamps
Complete redesign — Kouki lamps. Clearest visual Rev 3 identifier.

Toyota UK 1994 pack Factory documented

Rear wing/spoiler
Three-piece → one-piece — cleaner integrated design

Toyota UK 1994 pack Factory documented

Lower body trim
Colour-coded centre panel, front lip, side skirts

Community consensus Community verified

Bodywork
General revisions documented but specific panels not enumerated

Toyota UK 1994 pack Factory documented

Headlamps
Unchanged — pop-up design carried through all revisions

Toyota UK 1994 pack Factory documented

Bonnet
Unchanged — no confirmed bonnet pressing change in any revision

Toyota UK 1994 pack + EPC Factory-derived

Rev 3

Interior and equipment

Interior fabrics
Improved quality

Toyota UK 1994 pack Factory documented

Standard equipment (UK GT/GT T-Bar)
ABS · PAS · alarm/immobiliser · central locking · electric windows · 8-speaker audio

Toyota UK 1994 pack Factory documented

T-Bar trim
Leather standard

Toyota UK 1994 pack Factory documented

Passenger airbag
  • USDM Arrives Rev 3
  • Euro Arrives Rev 3
  • JDM Not yet at this stage

Multiple period sources Factory-derived

Side-impact beams (UK)
Added at Rev 3

Toyota UK 1994 pack Factory documented

Climate control (JDM)
Electronic climate control throughout SW20 life

Wikipedia + community Community verified

Rev 4 · (JDM-driven, no UK factory bulletin equivalent)

Rev 4 · JDM 1996-06

Least well-documented revision. No Toyota UK factory engineering bulletin equivalent to the 1992 and 1994 packs has been located. Sources: 1996 German brochure (high confidence for Euro), community consensus for JDM. Note: the UK 10th Anniversary special (Feb 1996) is Rev 3 spec, NOT Rev 4 — many UK owners assume otherwise.

Rev 4

Engine

Turbo and NA engines (JDM)
3S-GTE and 3S-GE unchanged from Rev 3

Community consensus Community verified

NA engine (Euro)
3S-GE · 170 PS / 125 kW

1996 German brochure Factory documented

Rev 4

Safety and equipment

ABS
  • Euro Standard
  • JDM Standard (assumed)

JDM standard status from community; Euro factory-confirmed.

1996 German brochure (Euro) + community (JDM) Factory documented

Driver airbag
  • Euro Standard
  • JDM Standard (assumed)

1996 German brochure Factory documented

Passenger airbag (JDM)
Optional

Community Community unverified

Side-impact door protection (Euro)
Standard

1996 German brochure Factory documented

Rev 4

Trim and options (JDM, community-derived)

Side repeaters
Fender-mounted (relocated)

Community Community unverified

Wheels
Diamond-cut five-spoke finish

Community Community unverified

LSD on G/G-Limited manual
Optional

Community Community unverified

Stainless MR2-embossed sill plates
Originally factory-fitted to the JDM 10th Anniversary Edition (Feb 1996, Rev 3 spec). Toyota later sold them as a genuine OEM accessory; installation requires modification of the existing plastic door-sill trims. Aftermarket reproductions are widely available.

Often miscategorised as a Rev 4 GT-trim feature — they originate on the Rev 3 Anniversary special. The OEM Toyota part number has not yet been verified to a primary source.

Multi-source: MR2OC threads, MR2 Heaven product listings, Two's R Us catalogue, period eBay listings Community verified

Sonic Shadow paint
Two-tone option available

Community Community unverified

Clear indicator timing
Sources disagree — Rev 4 vs Rev 5 contested

Do not publish a definitive Rev assignment until factory confirmed.

Conflicting community accounts Contested

Rev 5 · (JDM only)

Rev 5 · JDM 1997-12

Final production specification. JDM market only — never sold in North America, UK or Europe. BEAMS 3S-GE available in G-Limited grade. Confirmed by DB8 Motorsports from a genuine OEM wheel set in inventory.

Rev 5

Market and engines

Market
JDM only — never sold in NA, UK, or Europe

DB8 Motorsports + community Confirmed from part

BEAMS 3S-GE (G-Limited)
200 PS · ~21 kg·m · Yamaha-designed DOHC 16v aluminium head · 1997 VVT-i (intake) · 1998+ dual VVT-i + Ti valves · reportedly <1,000 units in SW20

Wikipedia (Toyota S engine), TEQ Digest, JDM of Miami listings, community Community verified

Production end
1999

Toyota Global Factory documented

Rev 5

Wheels (Rev 5 OEM, JDM only)

Unique final design; never offered in North America. Confirmed weights from a DB8 Motorsports genuine set.

Front wheel
15×6J · ET+45 · 5×114.3 · ~6.3 kg

DB8 Motorsports listing with weights Confirmed from part

Rear wheel
15×7J · ET+45 · 5×114.3 · ~7.2 kg

DB8 Motorsports listing with weights Confirmed from part

Engines

3S-GTE Inline-4 turbo · 1998 cc

The SW20's defining engine in JDM and USDM trim. Two generations appeared in the SW20: Gen 2 (Rev 1–3 plus updated Gen 2 in USDM Rev 3) and Gen 3 (JDM Rev 3 onward). Gen 1 and Gen 4 are community taxonomy for the Celica ST165 and Caldina respectively — neither was used in the SW20.

185 PS

ST165 Celica GT-Four — context only, NOT in SW20

Useful for swap-taxonomy pages.

Factory-derived
225 PS JDM / ~200 hp USDM

SW20 Rev 1, Rev 2, Rev 3 USDM (USDM Rev 3 is updated Gen 2)

Side-mount intercooler, airflow-meter intake, TCCS ECU.

OEM manual
245 PS JDM

SW20 Rev 3 JDM onward (NOT USDM)

February 1994 Toyota supplement confirms revision. Revised ECU, new injection. The reference engine for the project's primary car.

OEM manual
~260 PS

Caldina — context only, NOT in SW20

Relevant for swap pages only.

Factory-derived

Missing data — not yet sourced

  • Compression ratios per generation — no primary source located in any research pass.

3S-GE Inline-4 NA · 1998 cc

Naturally-aspirated 2.0 in the SW20 across all markets that didn't get the turbo. Output and spec changed three times across the SW20's life: launch, catalyst-era reduction, then the major Rev 3 revision. The Yamaha-developed BEAMS variant arrived in Rev 5 G-Limited (JDM only).

158 bhp

SW20 Rev 1 UK

UK launch spec.

Factory documented
154 bhp

SW20 Rev 2 UK

Catalyst-era reduction from 158.

Factory documented
173 bhp UK / 185 PS JDM

SW20 Rev 3 UK / JDM

Compression 10.3:1. New head, induction, fuelling, lubrication.

Factory documented
170 PS / 125 kW

SW20 Rev 4 Euro

1996 German brochure confirmed.

Factory documented
200 PS / ~21 kg·m

SW20 Rev 5 G-Limited JDM (1997)

BEAMS = 'Breakthrough Engine with Advanced Mechanism System'. DOHC 16v aluminium-alloy cylinder head designed by Yamaha. Initial release: VVT-i on intake cam only.

Community verified
200 PS

SW20 Rev 5 G-Limited JDM (1998 onward)

Second BEAMS revision: dual VVT-i (variable timing on both intake AND exhaust cams), titanium valves, slightly higher compression. SW20 BEAMS production reportedly under 1,000 units — these are rare.

Community verified

3S-FE Inline-4 NA, base · 1998 cc

Base-trim NA engine used in the SW20 Rev 1 UK base and the USDM SW21.

119 bhp UK

SW20 Rev 1 UK base / USDM SW21

Base-model engine.

Factory documented

5S-FE Inline-4 NA · 2164 cc

Larger-displacement NA engine, US market only in the MR2 (SW21 chassis).

~130 hp

USDM SW21

Naturally aspirated. US-market SW21 only.

Factory-derived

Common problems

  • T-bar roof seal leak

    Very common

    Drips into the cabin around the T-bar seals as the rubber ages. Most owners encounter it. OEM procedure exists in the workshop manual.

    OEM manual

  • 'Pipes from Hell' — copper coolant pipes above fuel tank

    Critical

    Copper coolant pipes routed above the fuel tank crack from vibration over time. Toyota revised one side only at Rev 5. Failure leaks coolant onto the fuel tank — fire risk.

    Specialist source

  • Cambelt — non-interference but catastrophic if missed

    Critical

    The 3S-GTE cambelt is non-interference (valves and pistons do not collide on belt failure) but the engine still strands the car. Service interval and procedure are in the OEM manual.

    OEM manual

  • Idle surge / hunting idle

    Very common

    Idle hunts up and down with no consistent RPM. Multiple causes — TVIS leaks, idle air control valve dirt, vacuum hoses, throttle body. Forum pinned threads cover the diagnostic ladder.

    Forum verified

  • TVIS vacuum leaks

    Very common

    TVIS (Toyota Variable Induction System) actuator and vacuum lines leak as they age, causing rough idle and reduced torque. Common companion to the idle-surge complaint.

    Forum verified

  • Rear subframe cracking

    Downgraded — community claim only

    Often-repeated forum claim. No Toyota service bulletin has been located. Treat as community-unverified until factory documentation surfaces.

    Community unverified

  • Power steering rack leak

    Common

    Steering rack seals weep, eventually requiring rebuild or replacement.

    Forum verified

  • Power steering relay failure

    Common

    EHPS relay fails intermittently; power steering cuts out, often returning when the relay is tapped or replaced.

    Forum verified

  • Distributor O-ring failure

    Common

    Engine-oil leak from the distributor base O-ring. Cheap part, accessible job. Symptom: oil pooling at the rear of the head.

    Specialist source

  • Rocker cover gasket deterioration

    Common

    Gasket weeps oil down the side of the head. Often paired with distributor O-ring.

    Specialist source

  • E153 gearbox synchro wear (2nd/3rd)

    Common with age

    Crunching on 2-to-3 and 3-to-2 shifts. Red Line MT-90 oil change is the conventional first step; rebuild eventually required. Common across the SW20 community as cars cross 100k miles.

    Community verified

  • Celica GT-Four dipstick cross-fit (parts knowledge)

    Parts knowledge

    Replacement dipstick is sometimes the ST205 3S-GTE Celica variant — slightly different routing. Tribal knowledge worth recording before it disappears.

    Forum verified

Market summary

JDM Yes — all revisions Yes Yes Full revision range. Gen 3 turbo from Rev 3. BEAMS 3S-GE in G-Limited Rev 5.
USDM Yes — Rev 1–3 only No No US sales ended 1995. Never received Gen 3 3S-GTE. Rev 3 turbo = updated Gen 2.
UK official No — NA only throughout Partial No All UK turbos are JDM grey imports. 1996 10th Anniversary = Rev 3 spec, not Rev 4.
Euro No — NA only official Yes (Rev 3/4 overlap) No 1996 German brochure confirms 170 PS 3S-GE, driver airbag, ABS.

Editorial traps

High-risk facts where the community keeps getting it wrong.

  1. 3S-GTE Gen 1 (ST165) and Gen 4 (Caldina) are NOT in the SW20. SW20 used Gen 2 and Gen 3 only.
  2. USDM Rev 3 turbo is updated Gen 2, NOT Gen 3.
  3. UK 1996 10th Anniversary special is Rev 3 spec, NOT Rev 4.
  4. All UK turbo SW20s are JDM grey imports — UK never officially sold a turbo.
  5. Rev 5 was JDM only.
  6. Rev 4 vs Rev 5 clear-indicator timing is CONTESTED — do not publish a definitive Rev assignment.
  7. 3S-GTE compression ratios per generation are MISSING — no primary source located. Do not publish until OEM manual cited.