you want to put a 2.4i 5 cilinder into the s40 and then turbocharge it?
that's double trouble
take the T5 like everyone says.
1. because they made them in the S40 so parts are no problem and the swap takes a lot less time
2. because it is less work and lasts a lot longer, way longer
3. way less problems during the build and during the driving.
4. cheaper in the end no matter what
the price of a 2.4 in good condition, plus a new intercooler, hoses, turbocharger, decompressionplate or cometic gasket, headbolt kit, manifold, and chip for the ecu (if they already have a +T chip for them, is more than a complete T5 engine
many beginners have said "what fun is that? " and many find out long before they are done.
i think putting a turbo on a non turbo 2.4 and then also putting it into an s40 is a waste of time and money.
it will never run as reliable, good and powerfull as the T5 and it is a lot more work.
especially for a beginner who hasnt turbocharged an engine before.