[samsquanch]

With a body looking like that I would spare no expense and go for a swap. After everything I've read I wouldnt waste time with 1zz turbo.

 

[samsquanch]

Also, the higher the cylinder pressure, the higher the voltage has to be to create a spark.

You beat me to it. Higher pressure more resistance.

Hate to be a stick in the spokes but I dont see a turbo 1zz offering any reliability or durability. I didnt believe what everyone said about the bottom end being weak until my rod bearings gave out. This was a stock engine.

I really dont see a boosted 1zz lasting but a few 1000 miles at best.

Going fast is an expensive hobby. Cheap out it will cost more in the long run.

 

[samsquanch]

I remember the day my rod bearings went south. I hit redline in 1st then bounced redline in 2nd. then the car developed a faint knock between 3-4k rpms.

Anyways, about a thousand miles of easy commuting later I wasn't entirely convinced the rod bearings were what was making the noise. So I thought I would do some fancy driving. Well, when it hit redline this time all four rod bearings took a shit. It was really knocking at this point. I made it to work and then 30 miles home after my shift. Mind you it was mostly coasting and no more then 3k rpms.

Four quarts of aluminum flake oil was drained when I got home, and rod bearings replaced.

That is what a few trips to redline will do to a stock engine. I can only imagine what the result will be increasing cylinder pressure.

This is when I learned about Toyota reliability. They will break, but it is possible to drive home.

The 1zz is best used for its intended purpose. Which is fuel economy.

 

[samsquanch]

The one good thing about boost is you can have much more drivability out of the engine making more power at lower rpms and not having to rev the engine so high to make good useable power imo making it more reliable (in the case of bearing failure) for daily sporty driving.

I redlined my engine and it blew up. Then I drove it home, polished the journals, and fitted rod bearings. Would have been a shame to let it sit.

Perhaps the laws of physics don't apply to boosted engines that were engineered to be naturally aspirated.

Where will the stresses from increased cylinder pressure on the compression stroke be applied?

Where will the excess forces of combustion be applied?

I'm not trying to steal your thunder. Just trying to save you the hassle and embarrassment of a blown engine when some kid in a new Corolla wants to race.