how difficult is turbo charging a petrol engine

Garage talk. Anything from mounting a winch to water proofing the electrics.
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mercutio
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how difficult is turbo charging a petrol engine

Post by mercutio »

yes i know get the bloody thing going first :mrgreen: that is the plan over the holidays but just thinking about what if i need more power how difficult is it to put a turbo on the side of the engine run an intercooler and make it go

the engine does have fuel injection already but it is mechanical so a little crude
my 4wd is not a truck

old mercedes never die but sometimes they do need some love

older cars are good,mercedes are better,older mercedes are the best
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darinz
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Re: how difficult is turbo charging a petrol engine

Post by darinz »

It is really easy. Get a manifold and bolt on a turbo. Fit oil and water lines, plumb the intake etc then get it tuned. The hard part will be setting the fuel as you'll have to monitor afr at all rev points and that is going to cost!!!
You will also need to adjust timing and depending on compression ratio (and fuel grade) possible lower compression. That really only should be done by either dishing the pistons or enlarging the combustion chamber, don't fit a spacer between the head and block as that will remove the quench (?) zones and therefore cause detonation.

So it is really easy to fit a turbo and make it go but to actually get a performance increase that won't destroy the engine, that is a different story. If it is efi and electronic ignition then low boost is pretty simple. Manual injection (or carb) and distributer can end up just really fuel hungry without much better performance.
Nissan Terrano coilovers, turboed VH45, Safari axles, and some other stuff.
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