1.5L Power Enterprise supercharger kit (complete)

[BennyLava]

I'd also really like to know the effect that it would have on engine life. But that is more of a general question. As in, how long does a turbo engine last, compared to basically the same NA engine? Same for a supercharger. One would assume that it would have to be at least somewhat reduced. Maybe a supercharged yaris would go to 300k miles before it needed to be overhauled, but the NA one would have gone to 450-500k. Before piston rings were worn out or some other major repair was needed.

Cause on a Yaris, the idea of the car was to last long, be cheap, and get good gas mileage. If your mustang or camaro's engine life was shortened by a power adder, well so be it. That was always its function anyway, to be a toy. But a Yaris has a different purpose in life, and I'm generally against going against a vehicle's purpose. Unless there is no harm done in the process.

[tmontague]

Originally Posted by BennyLava

But a Yaris has a different purpose in life, and I'm generally against going against a vehicle's purpose. Unless there is no harm done in the process.

Therein lies the flaw in that rationale. The driver/owner makes the cars purpose not the factory it came from. Case in point, many Mustangs and Camaros around here are grocery getter and garage queens, never driven in a high performance way. I'm sure those owners would mind the cars engine blowing early.

I use my car as my DD but have done modifications and drive it in a way that reduces its life. To me that isn't harm done as I will just throw a new engine in as needed

Harm is very subjective in this situation and can really only be determines by the owner/driver of that specific car