What do you have to do to make a carbed turbo car N/A?

[Rafs-T-Type]

More specifically a 1980 TA http://www.2gta.com/1980ta.html

 

[charlief1]

You'd need an intake for just a carb and then NA exhaust manifolds. Are you a member of the 301 garage yet? If not then sign up over there for parts ext that may help you out.

 

[Rafs-T-Type]

It's not my car. Asking for a buddy. What about the ECU? Does it need a different ECU?

 

[charlief1]

80 didn't have an ECM on it. It has a modified knock system that's stand alone. The puters didn't come until 81. The carb, PECV/PEVR valve, knock sensor, and turbo control center. are very specific and sought after so make sure he doesn't throw them away.

Have him join the 301 garage for more help since it's all the deal with. There's some really good info over there that will help quite a bit.

 

[Rafs-T-Type]

From the link I posted "The compression ratio of the engine was lowered to 7.5:1 and was fitted with a derivitave of GM's Buick electronic control unit to monitor boost and timing settings. Maximum boost was achieved at around 3500 rpm, a little below the shift point." - Makes it sound like it had an ECU

 

[Rafs-T-Type]

O...and the next paragraph - The turbocharger was a grand idea, but the technology to make it work properly was nonexistent at the end of the 70's. As the newer high octance fuels were ave today were not yet availiable, the engine had to operate on substandard fuels (Sunoco 94 was and the like nowhere to be found) of 87 to 90 octane, and this would have led to severe detonation under
boost if it were not for the ECU. By placing a vibration sensor in the valley between the cylinders which would detect detonation, the ECU interrupted this chain reaction by retarding the ignition timing and reducing boost pressure until the detonation was gone. By utilizing these computer controls, this process was repeatedly continued during the operation of the engine, attempting to keep the engine running at optimum performance all the time. By eliminating so much timing, the result was a none to powerful feeling from the turbo engine. With today's fuels, many owners claim quite reasonable performance and many of these engines have lived well beyond the 150,000 mile mark with little other than routine mainenance.

 

[charlief1]

The original design was so that it still had mechanical and vacuum advance and the turbo control center was hooked up to the knock sensor. Once detonation was detected then it would retart timing and that was all it did. The 80 model is just like the GM turbo cars before 81. Everything is very basic and was designed to give good gas mileage and make the car behave more like a large V8 on the highway. You've got to remember that this is the type of system I've been dealing with for some time now.

 

[Rafs-T-Type]

So they are just very loosely using the term ECU for this?

 

[charlief1]

It's not really an ECM. All it does is adjust timing when it sees detonation. Doesn't even use a vacuum signal or any other input. It only controls timing to some degree.

 

[Rafs-T-Type]

Cool...thanks for the info.

 

[dr_frankenstein]

aww man, thats sooo .............. sad....

another carb turbo to the dumpster..........

Hey does your buddy want to sell the turbo off that car?