The car and the turbo parts have been sold. Thanks!


Here are some photos of the turbo parts.

I'd like to sell related parts together in a set, e.g., all the microfueler parts, all the accusump parts. If you're interested then make me a serious offer. I'd prefer local pickup, but I can mail the smaller parts if necessary.

n.b.: As you can see, nothing has been cleaned up for these photos. Everything is being sold as-is.
Here's the intercooler. It mounts in back of and parallel to the radiator, roughly in front of the alternator. Apart from not being able to mount the intercooler in front of the radiator it mounts in a nearly ideal location. This is not true of GTI/GLI cars that have air-conditioning.
I think that cars with air-conditioning required a different (smaller) intercooler that was mounted parallel to the ground near the bottom of the engine compartment. A scoop was used to force air through the intercooler.

Because my car doesn't have an air-conditioner or a sunroof, it was the most lightweight US GTI model sold. The original New York State registration said my car weighed 1918 lbs. That lightweight combined with the turbo and large intercooler made this car very very quick. A similar 1984 model was slightly heavier, and the A2-series cars (starting in 1985) are considerably heavier.

Being lighter not only helps acceleration but it helps handling too.

Here's the exhaust manifold and the wastegate.
a closer view of the wastegate
an even closer view of the wastegate
This fuel injector is controlled by the calloway micro-fueler control unit. I think it mounts on a calloway "elbow" fitting.
close up
close up
ah! here's the turbo
keeping the turbo well lubricated is the best way to insure a long life
This is the Mecca Accusump III Turbo-oiler. The engine oil pump normally pressurizes the Accusump then the Accusump provides oil pressure to the turbo after the engine is shutoff. This works because of a special check valve that keeps the Accusump from draining back into the engine.

I think the Accusump system is a better solution to providing fresh oil to the turbo while it spins down than the turbo-timer products. It also provides an oil reservor safeguard for the oil bearings even if you suffer oil starvation during hard cornering.

Of course I do have the anti-starvation baffles installed in my oil pan, but the Accusump is nice insurance anyway.

close-up of the check valve
close-up of the identification plate on the turbo

It reads:

Roto Master Inc. Mod T04 B32 S/N 512137 P/N 1041 46C

Some similar vintage GTI turbo cars used the larger T03 turbo, however the larger turbo didn't spin-up as freely. My T04 turbo responded faster for very quick highway passing manuevers.

The Calloway Microfueler is the key difference between the Calloway Stage I and Calloway Stage II systems.

At the time the Microfueler was State of the Art.

Reading both engine rpm and manifold vacuum pressure, the Microfueler pulses a Bosch fuel injector to allow much higher turbo boost.

The Microfueler combined with the intercooler allowed my car to run 14psi boost using premium gas. At 14psi boost my engine was pumping out something in the range of 180-200hp.

The black plastic tube going to the left is where the rubber hose to the intake manifold attached.

The electrical connector on the right side went to the additional Bosch fuel injector.

another view
another view of the electrical connection from the microfueler to the additional fuel injector