TC swap?

[eTiMaGo]

Originally Posted by supmet

In what way is a 2.4L that is producing less power better than a 1.8 producing more? From what I hear the 2ZZ is a tight squeeze already. There's no way you'll be able fit a supercharger or turbo with the 2AZ(if it actually fits).

Very different engine characteristics, the 2ZZ needs to rev HARD to get its power, while a larger engine would be much more torquey and usable.

PK, if it's the latest model MR2 then yes, that would be a 1ZZ engine. Engine which was also used in the previous generation regular 1.8L Corollas. The 2ZZ (Celica, Matrix/Corolla XRS) is essentially the same engine, but with the VVTL-i head which, like Honda's VTEC, allows a high-RPM cam profile for an increase in power, like a second wind, if you will... These engines have been swapped in Yarii over here, as well as Puerto Rico, and I am sure in many other places.

If it's an older MR2 then you'd have the 2.0L 3S-GE engine, a very very respectable powerplant but far larger and heavier than the ZZ series. I have seen one with my own eyes wedged in a previous-generation Vios here, really tight fit!