when something is released I will be all over it. also I have requested if I can get my hands on the prototype, but when i heard the japanese laughter on the phone in the background, I dont think my odds were good. lol my contact in that group was good enough to share some ideas with me about possible CVT behaviours. Like for example.

1. Reducing the CVT speeds from 6 to 5 speed. with the 5th gear being variable when not under wide open throttle.
2. A max torque setting where it is a Four gear setup, Gear one and four operate as variable gears while 2 and 3 operate as high tq gears.

etc...

With a boost set up, they demeed it un safe to operate in constantly variable modes all the time. heat buildup for long durations can shortten the life of your CVT.

 

i dont know too much about the DE and ES models. but they are CVT's also correct? or are they normal automatic transmissions?





and yeah that would be good evosoul a while back i heard of a crack that might actually add gears instead of take away one. dont know how that would benifit. but like you said its only a matter of time.

 

Lol, forget I even mentioned the ES and DE, I'm just being stupid.

What I meant was, in your car, how are you trying to launch it? Are you just holding the brake, staying in neutral, or what?

 

ive mostly tried staying in nuetral and giving it a couple of revs..and waiting right before the needle starts to go back down and put it in drive...all i really get is a jerk.

 

Let me end this all right now....

You will never launch the CVT. Ever. Plain and simple.

This tranny was not made for launching, and i highly doubt there will be any programming made for you to launch a 120whp car. I've come to terms with mine being a snail, you cant brake stand, you cannot N-drop. Break standing doesnt allow RPMs higher than about 2.5k, and N-dropping just causes a nasty jerk that makes you feel like your tranny is going to just explode since you are placing 3.5k rpms to it and just went NO WHERE, the RPMs instantly drop back down to 1.5k.

The best description for launching of the CVT is this "VRRRRRRRRRRRRRRR..thud.......vrrrrrrrrrrrrrrrrrrr rrrrrrrOOOOOOOMMMMMM" Now mind you thats probably about 5 seconds worth of vrr's to finally get to the OOM's of the Mivec. Welcome to the Econo Tranny.

 

well according to rrm and they're turbo kit and a video i've seen with the CVT..it took off a lot faster than a regular cvt would..i think its all within cracking the ecu

 

Well, RRM hasnt cracked the CVT's ECU as far as I know, and they just use a Piggy-back with their turbo. And Dohboy is pretty much right. However, if we can modify the CVT's ECU somehow, to allow higher RPMs while In gear and holding the brake, I imagine it would launch decently, and more like a regular A/T. Then again, it might just react the same way it does when you neutral drop, either way, we're just going to have to wait, because as he said, you just cant launch it.. yet.

 

otherwise than launching what about everyday driving? you know how its really boggy and feels really slow if you dont push on the pedal too hard...wouldnt regular mods such as headers,ecu tune and others help with that?

 

thank you for the great discription of what a CVT launch sound could be like . lol But I have to some what disagree. It is true that there are layers of logics on the CVT transmission at the engine and Transmission ECU level. this is what prevents idle reving, it is what limits output tq to prevent transmission vibration, it is what simulates the lurching as described by the project manager. It is by design to be an ECO transmission, running smooth and cumfy.

On the flip side, logics can be stripped out to allow for faster shifting, customized shift patterns, unlimited amount of shift points and ratios. My curiousity centers around the hopes that the anti vibration algorythm can be disabled. which could recover about 8 to 10 horses. Safety stuff cant be stripped away, raising the risks of failure. its something that can be somewhat mitagated.

Everything is a matter of time, and the technology can only improve.

 

Now tell me this, would you honestly go through all that trouble and tinkering to launch your econobox at the risk of completely, and i mean COMPLETELY f'in up the one and only piece of hardware on the car that cant be repaired?

Lets think about this logically. Yes it would be nice to reprogram it and get different ratios, such as a higher cruising gear for those of us who like to stay in manual mode but wish they had the cruising RPMs of D. Shorter low end gears for faster 0-60 acceleration, sure why not. But, what risk would you place on

A) Losing your warranty,
B) Eventually destroying it with misuse.

Now for the most part some people dont care about warranties of certain parts, but when that part involves the entire mechanics of what makes this car move, i dont think its worth it. Specially like i said, its non-repairable. The dealer ship could EASILY blame anything from Engine trouble straight through to tire problems(AKA the ENTIRE car) on messing with the tranny programming.

Honestly, as its been said MANY time over the past year, if you want to launch, get a manual, and if you honestly wanted a faster car, take the 24k of the CVT GTS and get yourself something base model with power... SRT-4, Speed3 etc etc. It's something i wish i had done... specially after hearing my friend some how picked up a brand new speed6 for 23k -_- damn coupons

 

launching an unmodified car is not what I had in mind. The key word here is tuning.

a cvt controller makes more sense at the turbo or super chargeed level don't you think?

but since you have brought up the economy side of things it is possible to further refine the current program for even better fuel economy

 

if you do have this controller and you remove it. wouldnt it be almost the same as when you get an ecu tune? mitsu wont know that you had a tune say the works tune if you take it to the dealer. if you remove this controller the settings on the tranny should be back to stock right?

 

its hard to speculate. its unknown how invasive the controller is and if a engine or tranny reflash is need. no idea where the interface is or if there is a diff in programing with Japan vs. North America

 

I agree there are warranty risks, but like evosoul said, you cant completely remove the built in saftey measures. The algorithm he was talking about is basically programmed into the CVT's ECU that restricts power flow from the engine --> wheels. Its there to reduce vibrations/jerkyness and maintain a more comfortable ride, not to make the tranny run in a safer range of operation to prevent it from damage/breaking. At least thats what I got out of reading the article from mitsu about the CVT posted here. Its kind of hard to understand but the beginning paragraphs pretty much get the point across before it goes into intense details.

 

You can start with replacing you crank pulley from RRM. As that what it does, gives you better acceleration. It's a start.