1NZFE - the most boring engine?

[tmontague]

I do agree with the OP on this thread. The Yaris is a purpose built machine, performance is last on that list. The main focus being low end torque to keep the revs low and fuel economy high as a grocery getter. It does this well but at the cost of top end, and it leads to a dull drive.

You can slap all of the bolt ons you want to a 1nz but unless you do a full on build with a custom tune like Jason has, it will still fall flat on its face above 5.5k rpm. I had full bolt ons on my 1nz I/H/E plus golden eagle intake manifold and above 5.5k rpm it stopped pulling hard.

This is where the 2zr comes in, much better area under the curve and with dual vvt-i and pulls much harder to redline.

[m.flores.0928]

Originally Posted by tmontague

I do agree with the OP on this thread. The Yaris is a purpose built machine, performance is last on that list. The main focus being low end torque to keep the revs low and fuel economy high as a grocery getter. It does this well but at the cost of top end, and it leads to a dull drive.

You can slap all of the bolt ons you want to a 1nz but unless you do a full on build with a custom tune like Jason has, it will still fall flat on its face above 5.5k rpm. I had full bolt ons on my 1nz I/H/E plus golden eagle intake manifold and above 5.5k rpm it stopped pulling hard.

This is where the 2zr comes in, much better area under the curve and with dual vvt-i and pulls much harder to redline.

Someday I'll get that 2ZR swap going.


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[tmontague]

Originally Posted by m.flores.0928

Someday I'll get that 2ZR swap going.

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If you look at the whp numbers Tom has posted on his build you'll realize with mild bolt ons the 2zr can net you the equivalent of a 155-165 hp factory car all with the reliability of an Toyota and on a very light chassis

You look at cars advertised at 200 hp such as the gt86 but are only posting 165 whp on a dyno...

[m.flores.0928]

Originally Posted by tmontague

If you look at the whp numbers Tom has posted on his build you'll realize with mild bolt ons the 2zr can net you the equivalent of a 155-165 hp factory car all with the reliability of an Toyota and on a very light chassis



You look at cars advertised at 200 hp such as the gt86 but are only posting 165 whp on a dyno...

Well they all advertise crank hp and not wheel hp. Of course 200 crank hp will throw down 165 hp on a (chassis) dyno


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