How reliable are GC8?

Subies are reliable. GC’s are fairly rare though relatively speaking and many of them are beat. I’ve seen a few around here that are adult owned and look great, but none for sale.

What makes a Subaru a GC8?

GC8 means that it is a turbocharged Impreza WRX sedan… even though RS coupes aren’t sedans and RS’s aren’t turbocharged.

Is a GC8 an STI?

​GC8. This is the ‘Classic’ Impreza WRX / STI variation. It’s available in a sports wagon which carries the GF8 chassis denotation, as well as a rare coupe variety.

Is turbo lag good or bad?

Turbo lag is an inherent failing of the turbocharger design. Car makers have done their best to reduce turbo lag from the factory, however a car’s turbo lag can increase over time.

How can turbo lag be reduced?

Your first bet is to install a Wastegate. These attach to the exhaust housings on the turbo mount to help get rid of extra exhaust pressure. This allows you to shorten the exhaust housing, meaning the exhaust is fed into the turbo quicker and spools the turbine faster.

Are Subaru 2.5 RS reliable?

A common problem with the 2.5L engines in the 2.5RS are head gaskets starting to leak around 100,000 miles. This is why Subaru normally warranties the head gaskets until 100,000 miles. It isn’t an urgent issue and will not cause any catastrophic failure, but It will leak oil.

Is Subaru a JDM?

JDM stands for Japanese Domestic Market. Some more popular brands that are considered JDM include Honda, Lexus, Mazda, Mitsubishi, Nissan, Suzuki, Subaru, and Toyota.

How can I tell if I have a WRX or STI?

There are some other tips and clues that help you determine if it is a WRX or an STI, even if the STI does have the wing. The STI will have STI badges on the grill and in the back. It will also have bigger wheels and bigger breaks. The STI also has a distinctive rear diffuser, wich the WRX hasn’t.

What does GC8 mean?

GM = coupe. GF = wagon. GC pretty much a generic term for the 93-01 chassis (1st generation Impeza). GC8 is a turbo sedan. GD = 2002-2003.

Why do turbos cause lag?

And How Do You Get Rid Of It? The lag comes from the time it takes the engine to create enough exhaust pressure to spin the turbo and pump compressed intake air into the engine and is longest when the engine is in a low-rpm, low-load cruising situation. …

What does GBBC stand for in Subaru reflash?

GBBC (Gear Based Boost Control): The turbo doesn’t react exactly the same depending on selected gear (less boost in first gear, sometimes too much in fifth or sixth). With GBBC each gear have its own full control depending on RPM (not only a correction factor).

What is the purpose of the anti lag system?

Anti-Lag System (ALS): the goal of the ALS is to reduce turbo lag by spinning the turbo and producing boost in situations where it is normally impossible, mainly when shifting or braking.

How does the ECU work on a Subaru reflash?

The ideal RPM for up shifting is calculated automatically and the ECU limits it to this value to avoid a driveline shock when engaging the clutch again. That meets the same objective as anti-lag but puts usually less stress on the engine. Downshift Throttle Control: on DBW cars the throttle can be controlled when downshifting (aka ‘throttle-kick’).

What does aux5-8 do on Subaru Impreza?

Aux5-8 can control Stepper Motors and drive High or Low Single-Point Group, Multi-Point Group, Sequential, Semi-Sequential, Group Staged, Sequential Staged and Sequential/Multi Point Group Staged injection modes Up to 440 Zone Fuel Table with configurable load and RPM centers.