Engine mods - why bother?

[YarisHatch]

Originally Posted by Snake

if you want any real power on the yaris, just drop in a 2zz (1.8) motor from a celica or
a 2AZ-FE 2.4 from a scion tc, the stock yaris motor is not really good past 170 crank hp on boost without heavy internal block work

if you guys look into it, these swaps should really not be that difficult and they are inexpensive enough to find at a junkyard, plenty of aftermarket turbo kits for both motors with the celicas and tc's running around

^Prime example of what i was saying earlier, its not about the numbers. And zpi has pushed 181whp on their 8psi turbo kit, they have been running it hard the past 8,000 miles without any trouble. Its possible to make decent numbers if thats what your after.

The 2az is crap. The internals are a joke on it, it would also cause the yaris to have a very uneven weight dist. with that much weight added to the front end. Also, the 2zz is a better n/a motor than a boost motor. Not to mention, the transmission on the 2zz is seriously weak. One mis-shift on a boosted motor and you will cause minor to significant damage. Its been proven in the past with celicas. While i'd love to see a 2zz in the yaris as well, that transmission is a no no. N/a, you can make some good power out of it if your willing to take the time, and money to invest naturally aspirated vs. throwing down a few thousand for some easy power.

Another thing you might want to realize when you talk motor swaps, the yaris engine bay is pretty small. Its smaller than the xb's, and a 1.8l can fit in the xb but without some adjustments to the firewall. Putting a 2.4l would be a huge project, can be done but wouldn't be easy. Also wouldn't be practical because with the weight added, it would handle like crap and can even be dangerous, especially in the rain.