Hello, 

I am wondering, what is the most powerful engine, that can fit into a 105 without any major adjustments like cutting or welding new engine mounts. Hopefully someone will know. 

22 hours ago, futyseq said:

Hello, 

I am wondering, what is the most powerful engine, that can fit into a 105 without any major adjustments like cutting or welding new engine mounts. Hopefully someone will know. 

The 120 will fit for sure. The 130 5 port may fit, and if it does, can be tuned to 120bhp.

24 minutes ago, KenONeill said:

The 120 will fit for sure. The 130 5 port may fit, and if it does, can be tuned to 120bhp.

Thanks a bunch this will sure help, but do you know about any engine from another manufacturer (such as VW, Audi or Seat) that will fit with small adjusmets like  an adaptor plate for example?

 

I saw how one guy swapped a Subaru EJ20 in a 120. But some EJ20 have fuel injection and they are flat fours so I think it will be pretty hard to get it in, thus I'm asking: Do i need something else than an MCU when I'm swapping a fuel injected engine into Škoda 105?

1 hour ago, futyseq said:

any engine from another manufacturer (such as VW, Audi or Seat) that will fit with small adjusmets like  an adaptor plate for example

Never done either of them myself, but I know Alfasud and Subaru flat 4s fit. The 'suds even mostly use carburettors and Kettering arc ignition.