User: What year is the 4th generation celica
Assistant: The fourth generation Toyota Celica was produced from 1986 to 1989. This generation marked a significant change as it was Toyota’s first front-wheel-drive Celica. The 4th gen models include the ST160, ST161, and ST162 chassis designations, and also introduced the AWD turbocharged version called the ST165 All-Trac (US/Canada) or the GT-Four (Europe/Australia/Japan). There were coupe, liftback, and convertible body styles available within this generation, with the convertibles offered only in the GT package.
So in summary, the 4th generation Celica years are 1986, 1987, 1988, and 1989【4:0†4gen_lab_site_text.txt】.
User: Is there a JDM model called the GT-R?
Assistant: Yes, there was a Japanese Domestic Market (JDM) Toyota Celica model called the GT-R. This was distinct from the ST165 GT-Four (All-Trac) and other variants. The JDM GT-R model is an ST183 chassis code and was equipped with the naturally aspirated 3S-GE engine, unlike the turbocharged 3S-GTE in the GT-Four (ST165).
The GT-R was known to be unique among Celicas for having features such as 4-wheel steering (4WS) and was offered between certain model years, specifically around 1991, which is beyond the 4th generation period but important to highlight since the GT-R badging was used around that time. The 4WS was not an option on the 185 chassis All-Trac/GT-Four but was common on the GT-R (ST183) models.
Despite some confusion in forum discussions and model kits or replica badges, the GT-R was a legitimate JDM trim distinct from the GT-Four. It had no direct connection with the turbocharged AWD Celica (ST165) models commonly known outside Japan as the All-Trac or GT-Four, but both shared some Toyota 3S platform heritage.
So, in short, yes, there was a JDM Celica GT-R model, primarily recognized by its 4WS and naturally aspirated 3S-GE engine, mainly identified by the ST183 chassis code, but it was not a turbo All-Trac variant. The GT-R was available in Japan as a special series within the later 4th and early 5th generation Celicas timeframe .
User: Would it be possible to swap a 3S-GTE into a 1989 GT-R?
Assistant: To clarify, the 1989 Celica GT-R model itself did not exist; the GT-R (ST183 chassis) was introduced a bit later, around 1991. However, assuming you mean swapping a 3S-GTE engine into a 1989 Celica model (likely the ST162 or early ST165), yes, technically it is possible but involves several considerations.
The 3S-GTE is the turbocharged version of the 3S engine family and was found primarily in the ST165 Celica GT-Four (All-Trac) from 1988 to 1989. Swapping this engine into a Celica that originally came with the naturally aspirated 3S-GE engine (like the GT-R ST183 or an ST162) is feasible because the engine fits within the same engine family and mounts.
Key points to consider:
1. **Engine type and mounts:** Both 3S-GE and 3S-GTE share many physical similarities, so engine mounts and space under the hood largely support the swap.
2. **Transmission:** The turbo 3S-GTE requires its transmission and drivetrain, typically AWD in the ST165 GT-Four. Using the turbo engine with the original FWD transmission from a 3S-GE car would require custom adaptation or a matching AWD setup.
3. **ECU and wiring:** The 3S-GTE engine requires its specific ECU, wiring harness, turbo controls, and sensors to manage boost and fuel delivery properly.
4. **Fuel system and exhaust:** Upgraded fuel injectors, pump, and exhaust components are also necessary to support the turbo engine.
5. **Cooling system:** The turbo engine typically needs enhanced cooling components like a better radiator and intercooler, which the naturally aspirated cars lack.
6. **Braking and suspension:** Given the increased power from the turbo engine, upgrades to brakes and suspension are highly recommended for safe handling.
If you mean specifically swapping a 3S-GTE into the JDM Celica GT-R (ST183) itself, which originally came with the naturally aspirated 3S-GE and 4WS, this swap becomes more complex physically since the ST183 is generally FWD and doesn’t have AWD hardware designed for the turbo setup. You may have to swap the entire drivetrain to an AWD setup from an ST165 or later model.
In summary, swapping a 3S-GTE turbo engine into a Celica that originally had a naturally aspirated 3S-GE is doable if you have the supporting components (transmission, ECU, wiring, cooling, brakes) and are ready for custom mounting and wiring work. The challenge is greater for the 1989 GT-R since that specific GT-R nameplate wasn’t used then and the AWD turbo setup is from the ST165 GT-Four.
Always verify part compatibility with your specific model and be prepared for extensive mechanical and electrical updates to accommodate the turbo engine reliably.