Why doesn't the 450h have a tach? (pics added)
04-23-09, 09:15 PM
#1
executive matchup
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Why doesn't the 450h have a tach? (pics added)
the tach is replaced with the hybrid gauge in the 450h, i know. but the 450h still has a 3.5L V6 engine, so shouldn't you also have a tach? 
04-23-09, 09:32 PM
#2
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I thought it would be due to the CVT always keeping the engine in the optimal rev range and the fact that a combination of the two shows the "actual" amount of power going to the wheels.
It would be a pretty boring tach anyways, since it would just jump between 0 and the optimal output range
It would be a pretty boring tach anyways, since it would just jump between 0 and the optimal output range
04-23-09, 09:58 PM
#4
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Well its not just about the CVT but you guys are correct partly. My G/F's 07 Altima has CVT (can't wait for that lease to be up next year 
) and she has a tach and the car does rev like a regular tranny depending on your speed and if you punch it/cruise etc.
From my understanding Lexus did it to make the 450h "different" and to show the "power" being used from the battery motor. Lexus intent with this car was to show power gains more so than fuel efficiency. You will notice Lexus literature rarely mentions fuel economy.
Driving the car, it acts like a battery tach. When you at a stop, the needle stays in the blue range and when you punch it, you see it rise up like a tach.
non hybrid
) and she has a tach and the car does rev like a regular tranny depending on your speed and if you punch it/cruise etc. From my understanding Lexus did it to make the 450h "different" and to show the "power" being used from the battery motor. Lexus intent with this car was to show power gains more so than fuel efficiency. You will notice Lexus literature rarely mentions fuel economy.
Driving the car, it acts like a battery tach. When you at a stop, the needle stays in the blue range and when you punch it, you see it rise up like a tach.
non hybrid
04-24-09, 05:26 AM
#6
Lexus Test Driver
The CVT in the Nissan Altima is quite different from the CVT in the GS450h. Niissan uses that cheap belt and pulley system, while Lexus uses a planetery gear system.
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04-24-09, 08:34 AM
#9
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The Altima CVT is course, loud and just rough in comparison. That said it does get the job done IMO and I don't expect it to be even smooth compared to a Honda/Toyota.
04-24-09, 10:29 AM
#10
I really do find the kW gauge to satisfying. But there are a few sets of RPM levels that the car just uses over and over. The guys over at prius chat use something like a scan gauge to get all sorts of information including RPM. Every once and a while I get the urge to plug in a scanguage and really see what is going on under its skin. Too bad I don't have one... 
04-24-09, 01:36 PM
#12
executive matchup
Thread Starter
so i assume that with a CVT, you don't have to worry about the engine going past the redline? i'm so used to seeing a tach, it just feels a little wierd when i gun it and check the tach it's not there (a habit from my old TL when i would have it in sport mode, and i would nail the accelerator until it hit the redline, and i would shift up to 2nd gear). 
04-26-09, 12:22 PM
#14
so i assume that with a CVT, you don't have to worry about the engine going past the redline? i'm so used to seeing a tach, it just feels a little wierd when i gun it and check the tach it's not there (a habit from my old TL when i would have it in sport mode, and i would nail the accelerator until it hit the redline, and i would shift up to 2nd gear).
04-28-09, 05:37 AM
#15
Lexus Test Driver
so i assume that with a CVT, you don't have to worry about the engine going past the redline? i'm so used to seeing a tach, it just feels a little wierd when i gun it and check the tach it's not there (a habit from my old TL when i would have it in sport mode, and i would nail the accelerator until it hit the redline, and i would shift up to 2nd gear).