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I believe that Toyota needs to invest in a small motor for their hybrids (say 1.6 to 2.0L) and pull out all of the stops. Utilize dual valve timing and direct injection. ... Offer turbo powered ones for HS, Rav 4, and Camry.
a turbo hybrid? is there such a beast in existence? you do know that's pretty costly right, not to mention a nightmare of engine management software.
I wouldn't call the 1.8L class leading, which is why I think that a suitable replacement is in order. I didn't say that they should use turbos in hybrids. However, you assert that the electric motor can be compared to a turbo (which is accurate) however current battery technology greatly limits the practical amount of power from a hybrid vs. a turbo. I've never heard of the atkinson cycle eliminating the need for DI or valvematic and I'm no novice when it comes to cars. Where you got the idea from is beyond me, but perhaps you should write to Lexus and BMW and tell them that they are doing it wrong.
But the 1.8 litre is the latest engine after the GR and NR family last year. (Now superseded by the AR engine family).
I wouldn't call the 1.8L class leading, which is why I think that a suitable replacement is in order. I didn't say that they should use turbos in hybrids. However, you assert that the electric motor can be compared to a turbo (which is accurate) however current battery technology greatly limits the practical amount of power from a hybrid vs. a turbo. I've never heard of the atkinson cycle eliminating the need for DI or valvematic and I'm no novice when it comes to cars. Where you got the idea from is beyond me, but perhaps you should write to Lexus and BMW and tell them that they are doing it wrong.
- you realize you are talking about brand new ZR engine series, which is indeed class leading and , again, brand new? Maybe you thought it was based on NZ series engine in old Prius? Completly different engine series and engine. How did you think that new Prius got those numbers, by accident? They optimized everything in order to get them, same goes for RX.
- Where did I hear that atkinson cycle engine in Prius is optimized to run at predefined RPMs while Valvematic and Direct Injection are used to optimize fuel delivery throughout the rpm range? Not actually big secret. Lexus is not running their Atkinson cycle engines with Valvematic or Direct Injection, and BMW does not have any Aktinson cycle engines.
- Gen3 Prius gets 45hp max out of the electric motors. You would fit an turbo in there to get 300 hp Prius? That idea is definetly beyond me ;-).
I definetly do not mean anything bad (let me repeat that once again!) but it seems to me that you go after the catchphrases and stick to them. You have to realize that those bumper stickers matter not. Look at the vehicle numbers - both Prius and RX450h are best powertrains in the world in their range. Forget about technologies they use. Look at the numbers.
This beast currently exists in the form of the BMW X6 ActiveHybrid, although the Subaru TPH is the real first if concept cars are considered.
not really, ActiveHybrid is just an mild-hybrid, or should i say glorified start stop system.
germans and french have been trying to do turbodiesel hybrid for quite a while now, that even makes sense, but there is no product out yet - and they had been at it for quite a while. I am pretty sure we will never see full hybrid system with turboed petrol engine.
You're talking about the ActiveHybrid 7, which is a mild hybrid. The X6 ActiveHybrid, even though it shares the same moniker, is a full hybrid.
Confusing, I know.
yep, you are right, i even know about X6 ActiveHybrid... they make great deal of pointing how electric motors give it gas free help through the entire range.
Nevertheless, X6 AH is different beast, it is all out effort thats proving all the wrong things.
I'm sorry, I don't think that the 2ZR is class leading. Other companies have larger, more potent engines that are more efficient.
really? I dont see anything as good as 2ZR Valvematic or 1ZR Valvematic engines in Europe. Show me example please. 147hp out of 2ZR and 132hp out of 1ZR is class leading, nothing touches it at all. In Autobild tests, 1ZR Dual VVTI was as fast as 1.4TFSI in Golf, but spent less fuel. This is before Valvematic treatment which gave it 8hp more and ~10% lower consumption. Of course Auris is also 2,000 Euros cheaper with that engine.
and then again, nothing touches 2ZR in Prius either... i would like to see these examples?
Or are you talking about bumper stickers again? You want it turboed with direct injection and valvematic?