( CVT ) Can the auto shift up be removed?

ryuma63

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So yeah, the the CVT on sports mode auto shifts up when it reaches 5500 rpm on sports mode, Can this be removed so that you actually have the full control on your shifting?
I don;t have hondata yet but i'm planning to get one maybe a year or two from now, since my budget for now is on wheels and cosmetics.
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D-RobIMW

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Short answer, no.
 

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I wonder if this is specified anywhere. Apparently ~5500 rpm is just "near the tachometer red zone" as defined by Honda, where the red zone may start at 6600 rpm.
I also wonder whether there might possibly exist a long answer how to hack it.
 
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ryuma63

ryuma63

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hmm, well its technically an automatic... How about increasing it's rev limiter, from 5500 to 6500 or 7000?
as of now my car is bone stock, but I do plan on adding some bolt on upgrades someday.
 


Myx

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As said above, That is not possible. Im sure it wouldn't be good for the transmission either to let the RPMs sit at redline for an extended period of time.
Why would this be bad for the CVT?
 

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Not how a CVT works, there are no "gears" and there is not "shifting".
 

jred721

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Yeah if you have the turbo most of the power runs out by 6k rpm anyway so there's not much gained from revving it out.
 

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Yeah if you have the turbo most of the power runs out by 6k rpm anyway so there's not much gained from revving it out.
So if I revved it out instead of letting it shift, I'd run slower because of loss of power up top?
 
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jred721

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So if I revved it out instead of letting it shift, I'd running slower because of loss of power up top?
Basically. Just like any car, it has it's sweet spot and the part where the power band tapers off. If you rev it out your essentially just leaving the power band so you're actually making less power rather than more by revving it out. That being said, the fake "shifts" from the CVT are simulations and i'm pretty sure it makes acceleration a bit slower because a CVT doesn't need to "shift" anything in reality.
 
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Basically. Just like any car, it has it's sweet spot and the part where the power band tapers off. If you rev it out your essentially just leaving the power band so you're actually making less power rather than more by revving it out. That being said, the fake "shifts" from the CVT are simulations and i'm pretty sure it makes acceleration a bit slower because a CVT doesn't need to "shift" anything in reality.
The issue is the location of the real power peak: I've seen some dyno power curves for the stock 1.5T with the peak around 5500 rpm, and some with the peak significantly higher, at least at 6000 rpm or even a bit higher than that. It is not easy to dyno a CVT car accurately, and I wouldn't trust every power curve I see. I suspect the power peak is higher than 5500 rpm.
 
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The issue is the location of the real power peak: I've seen some dyno power curves for the stock 1.5T with the peak around 5500 rpm, and some with the peak significantly higher, at least at 6000 rpm or even a bit higher than that. It is not easy to dyno a CVT car accurately, and I wouldn't trust every power curve I see. I suspect the power peak is higher than 5500 rpm.
Stock peaks around 5.5k rpm
Tuned peaks above 5.5k rpm
yes you can dyno a cvt accurately because it's the tuning hence the different power curves that you're seeing or not trust.
anyways, no matter what mode it's in, it will upshift by itself.
 

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Man o Man...
Turbo engines make their torque lower and in the mid-range. Naturally Aspirated engines keep climbing as the engine speed increases.
If you want to rev out, get a much larger turbo and all the piping to compliment the exhaust and get it in a manual. But, then it is no longer street-able.
With a CVT, you always be in the meat n potatoes of any power band when at the appropriate engine speed and proper throttle command.

Increase the Redline? On an automatic FI engine? That is funny business..
 
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Stock peaks around 5.5k rpm
Tuned peaks above 5.5k rpm
yes you can dyno a cvt accurately because it's the tuning hence the different power curves that you're seeing or not trust.
anyways, no matter what mode it's in, it will upshift by itself.
I'm not talking about tuning, but only a stock car. Btw. Honda specification for top power with CVT is 180 hp @6000 rpm.

There are slightly different dynograms for stock, because it requires some skill and care to make an accurate measurement at peak power. In addition, the conditions are slightly different for a car on the road and a car sitting still in a shop in still air and spinning wheels.
 

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Turbo engines make their torque lower and in the mid-range. Naturally Aspirated engines keep climbing as the engine speed increases..
That's a waaaaaay generalized statement that holds no basis in truth.
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