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This may be a dumb question, but what are the big differences between the 1.5 and the 2.0 engine wise? I know the 2.0 turbo is obviously bigger and gives more horses and torque but what else? Would it ever be possible to just throw in the 2.0 turbo into a 1.5? Tried to look up major differences but most sites just list the specs for both engines. And for those saying I could just use a ktuner or hondata to push the same numbers I already know but it never hurts to ask. Also not trying to trade in my car lol. Thanks for any info tho
 

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Why would you do that? Why not just trade for a car you want? That's gotta be cheaper plus you get a warranty.

OTOH a Type R 2.0T swap into a Miata or an MGB would be cool.
 

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Academically speaking/speculating, besides a different bore and/and or stroke (i.e. larger pistons for the 2.0) I would imagine the throttle body and injectors are different as well. And then there's the ECU which has different programming for each engine. Exhaust down pipe is probably a different diameter. You mentioned the possibility of different turbos. I have no idea which items are "bigger" or "smaller" on either engine. And then there's the transmissions of course. The 1.5 got the CVT and 2.0 gives the 10sp "traditional" auto. (or 5sp where applicable)



Note: I'm just guessing at all the above.



I've read that even the 2.0 engines in the Civic Type R and Accords have differences like oil pans, cooling and other things besides turbo and ECU.



At the end of the day it may be a fun comparison for someone with time on their hands and a research/nerd brain. But that's all it would be I think. Trying to make a car what it isn't can be pretty costly and time intensive.
 

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If you have a CVT transmission you may be pushing it's limits with any power upgrades as it will be the weakest link.
 

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If I already had the the 2.0 manual transmission and the 2.0 engine assembly would it be a direct for into the 1.5 ?
 
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