Launch Control with CVT

Sev

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Simple question: I have a Civic Touring 2020 and would like to known what are the safe limits (if any) on revving up the engine while holding the brakes pedal with the gear on either D or S.
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If you want, I can give you a phone number to order your replacement CVT.
 
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Sev

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If you want, I can give you a phone number to order your replacement CVT.
Ok. I count that as 01 "there are no safe limits". Any other opinions on this matter?
 

Badigadi

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Since we are talking launch control, I know it's bad but I don't know why. What goes wrong when someone tunes for launch control in one of our Civics besides a broken CVT?
 


gtman

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Since we are talking launch control, I know it's bad but I don't know why.

What goes wrong when someone tunes for launch control in one of our Civics besides a broken CVT?
Why do I get the feeling this entire thread belongs on Comedy Central?
 

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Since we are talking launch control, I know it's bad but I don't know why. What goes wrong when someone tunes for launch control in one of our Civics besides a broken CVT?
The broken CVT is usually the issue.
 

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In short, there is no launch control.
But, if you set brake hold, you will get a slightly faster launch since you’re not transitioning your foot from brake to gas pedal. And also put the car in S gear.
 

Badigadi

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Why do I get the feeling this entire thread belongs on Comedy Central?
So you mean people who genuinely wish to educate themselves are amusing to see? This is my first car mate, I don't know "obvious things" you might have decades knowing.

The broken CVT is usually the issue.
So if I had a 6MT with better clutch it would be fine? It probably isn't, but what goes wrong after it?
 


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So you mean people who genuinely wish to educate themselves are amusing to see? This is my first car mate, I don't know "obvious things" you might have decades knowing.


So if I had a 6MT with better clutch it would be fine? It probably isn't, but what goes wrong after it?
There is always some drivetrain shock when launching but the clutch is designed to slip and will take most of the abuse. You can absolutely launch a 6MT at the expense of more frequent clutch replacements. Even if the gears were damaged there's replacement options. The CVT is way more fragile and doesn't have easily replaceable parts. So it's easier to break and requires a full replacement when it does.
 

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Even the manual breaks if you frequently Launch.

Unfortunately there is next to nothing you can do to strengthen the CVT on this platform.
A manual gearbox with upgraded gears would be wanted for launching situations.
 

Badigadi

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There is always some drivetrain shock when launching but the clutch is designed to slip and will take most of the abuse. You can absolutely launch a 6MT at the expense of more frequent clutch replacements. Even if the gears were damaged there's replacement options. The CVT is way more fragile and doesn't have easily replaceable parts. So it's easier to break and requires a full replacement when it does.
Thanks for your reply and the explanation, I know the CVT is the weakest link in this cars because kind people in this forum have warned us about it. The reason I asked is because I have seen people mentioning that launch control can damage your CAT for example, so I was wondering if there's more to get damaged beside what I already know.
 

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Thanks for your reply and the explanation, I know the CVT is the weakest link in this cars because kind people in this forum have warned us about it. The reason I asked is because I have seen people mentioning that launch control can damage your CAT for example, so I was wondering if there's more to get damaged beside what I already know.
People often confuse things like a 2 step rev limiter vs anti lag. You can launch the car just by holding high rpm and dumping the clutch or by brake boosting a CVT or revving in neutral and slamming it into drive. All those can hurt your drivetrain but shouldn't damage your exhaust.

Anti lag involves dumping a ton of fuel and pulling ignition timing so you send loads of unburnt fuel into the exhaust to help build BOOST (not just revs) during a launch. Dumping all that unburnt fuel into your cat will kill it.
 

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A CVT is belt driven...maybe thats the information you are missing/looking for? There are no gears just pulleys and a belt...and that belt has to have some stretch to it to allow for smooth operation...and it can be stretched out of specs if you exceed the parameters for which it was intended to be used....so no launching, no brake boosting, no flooring it from a dead stop...those are things car manufacturers assumed people don't do with a CVT car normally...I guess.
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