Q: Removing turbo charger from a turbo car asked by Gavin B. Scotty Kilmer Automotive Mechanic. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details. Home Questions.
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If you remove the turbo, you would require a engine modification blue plate to change the vehicle. Which you can't get anyway.
All in all, you are screwed. Get a dunga and drive around until you can drive your turbo Skyline. Turbo engines are designed with lower engine compression due to the forced air pressed into the engine. And especially when you say that he isnt mechanically minded, then there will be labour from a workshop to do this. Its so much easier buying a non turbo skyline. They are worth well under 10k now days. It has been done with a small degree of success.
As others have mentioned, the factory turbo motor runs a lower compression to deal with the boosted air, whereas a non turbo engine of the same model will be higher compression, aside from that, there wont be a whole lot of trouble as far as the tuning side of it goes, from what I have seen, the turbo computer doesn't do an aweful job of running the car non-turbo'd.
I don't know how long your mate is planning on doing it for, but unless he is very patient, he will get sick of the lack of torque pretty quick. You also must disconnect the air intake system from the turbo by removing the bolts that join them together and detaching the piping. Similarly, the turbo intercooler needs to be removed and then cleaned from the inside to eradicate any signs of oil, so the best method would be for it to be flushed with the use of an oil degreaser and then left inverted to drain properly.
Note : You can also remove your old air filter, clean out the filter box check for any damage and replace with a brand new filter. Furthermore, whilst you are completing these steps, carry out some checks on the equipment to ensure it is in good shape, for example, search for any damage in the boost pipework, and make sure there are no oil remnants or dirt particles. If you do find damage, you should get replacements fitted. What you need to do is unscrew all the nuts and bolts that hold them both together, and then when you are ready, lift the turbo through the top of the engine compartment or below it.
Starting with the turbo intercooler, then the air intake system and finally the exhaust downpipe. They are inexpensive and its good practice.
After that, ensure the oil return pipe is connected properly and that it is clean and clear, with no blockages. Now, you can fit a brand new one in and also restock your vehicle with the correct grade of oil required for your engine. When you first start the engine and run the new turbocharger, you should avoid revving the engine. I appreciate performance will be effected but not to what extent and if there are other considerations I need to be aware of. It's do-able, but you'll need to do quite a bit of work on the engine including the software to make it drive like a car.
There are people who drive their cars without the use of the turbo, so it is possible. The engine controls will work fine with no boost ,they have to. What about the old person that never floors the car? Their turbo never spools, never produces boost, and the computer and the sensors see that and don't react by changing anything.
If you begin to add pressure, the timing changes, fuel is added. You might get worse gas mileage as in some cases the engine will have to work harder to move the car. If the turbo was functioning, you'd get better driveability and gas mileage, but the top speed is almost the same.
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