Toyota salesman claiming 2010 will get 1.8 L engine

[cycledrum]

That's right. I was at Toyota Sunnyvale this afternoon talking with a salesman. He said, for sure, guaranteed the 2010 Prius will get the 1.8 L engine based on the Corolla. He did not say how he knows that.

I'm like, hmmmmm, 1.8 L .. more weight, will cost more. I'll be ok with it if it pollutes less and gets better fuel economy.

[GeekEV]

Car & Driver also says it will get a bigger engine. Though they say 1.6L:

http://priuschat.com/forums/prius-hy...ar-driver.html

[cycledrum]

Originally Posted by mr_zorg

Car & Driver also says it will get a bigger engine. Though they say 1.6L:

http://priuschat.com/forums/prius-hy...ar-driver.html

That is true.

Edmunds Inside Line claimed the car will have the 1.8 L

Imagine the 2010 Toyota Prius - Inside Line

Those spy photos are just a current model covered up with something. Lot of speculation at this point.

[Flying White Dutchman]

there is going to be a model above the prius! so ik think the 1.8 will be in that car

[drees]

Originally Posted by cycledrum

I'm like, hmmmmm, 1.8 L .. more weight, will cost more. I'll be ok with it if it pollutes less and gets better fuel economy.

I doubt the new engine will be significantly heavier. The problem with the current engine in the Prius is that it's based on an old design that used to be used in the Echo.

The new engine is based on the one currently used in the Corolla which means that it will be cheaper to produce since they won't have as many blocks to cast.

Sure, they might have been able to make it slightly lighter if they designed the block around a maximum of 1.5l instead of 1.8l, but in reality, 0.3l is not a lot.

I think the new engine will make better use of dynamic cam/valve adjustment so it should be more efficient as well.

As a whole, all the rumors seem to indicate that the new engine/updated hybrid system will net 10-15% better fuel economy - how much of that is the engine and how much is the updated hybrid components (and other changes) will be hard to say.

[Tideland Prius]

Originally, speculation placed it as a 1.8 litre engine. It's only the latest one from C/D that says it'll get a 1.6 litre.


Either way, it'll be from the same engine family, the ZR family. The 1.6 litre will be the 1ZR and the 1.8 litre, the 2ZR (the one in the Corolla/Matrix/xD). These new family of engines is ridiculously fuel efficient. How so? Even with a 4-spd automatic, the Corolla beat the 5-spd auto Civic in CanadianDriver's 50 litre challenge netting a final tally of 4.9L/100km or 48mpg.

[rfruth]

Atkinson cycle (higher compression) in G III ?

[drees]

Originally Posted by rfruth

Atkinson cycle (higher compression) in G III ?

Yes, Atkinson cycle engines are a natural fit for hybrids unless you need/want the peak horsepower of an Otto cycle engine for some reason.

[rfruth]

So its going to involve more than just dropping the 1.8 in there ...?

[drees]

Originally Posted by rfruth

So its going to involve more than just dropping the 1.8 in there ...?

Well, yeah. Just like they didn't just drop the Echo 1.5l in to the current Prius, they won't drop the Corolla/Matrix/etc 1.8l in to the next gen Prius.

It will be interesting if it's not a 1.8l, though. What Toyotas currently use a 1.6l?