I will try to be as clear as possible as to what I am experiencing, because I am not sure its indicative of pending transmission failure; more like bad tcu programming.

When I am slowing down in traffic and I have my foot on the brake as I coast to a much slower speed ( say from 45mph to 15), the TCU shifts to neutral (as expected) even though the display reads "5" but when I give the car throttle (around 20%) it bogs even though I have manually put it in "2" as if its still in a higher gear for atleast a second.

It doesn't do it consistently, but it seems like the TCU has a hard time with downshifts under this specific circumstance. Is this a known issue?

 

Just to be clear, you are aware the Evo X uses an electronic throttle and has lag time right? It is not responsive like drive by cable.

 

Yes, I am completely aware that there is latency to be expected, but the degree of the latency in this case is unexpected. I drive an 09 RalliArt, to be specific.

 

The only things i could suggest are changing the fluid and filter, as that has a lot to do with how the SST acts. Or, if you have already done that and it still acts up, i would recommend trying the GST basemaps. They have some tuning of the SST built into them. It cleans up the SST very well.

 

I've been told the exact opposite.. It's my understanding that the GST maps are not the best solution for the SST. I'd love some clearity though! I am so so confused on what's good and bad for our cars.

 

IMHO, the GST tune helps significantly with the SST, and the way it shifts. There hasn't been anyone (that i know of) who is displeased with the GST tunes, being it engine or SST. They have fine tuned the SST to help the way it behaves. Where did you get this "understanding" from?

 

where the hell did you get that notion? The people that work on and provide the GST base maps are on the for front of figuring out what is going on with the TC-SST. NO TC-SST tweaks go into the maps without thorough extensive testing by everyone involved.

Granted, there are plenty of other people contributing to the project of deciphering how the ECU interacts with the TCU, but the people that made the GST BaseMaps know more about working with the TC-SST than most "tuner shops" do.

Anyone that's ever dis'ed the GST BaseMaps either has some other agenda in mind, or they just don't have a clue what's coming out of their mouth.

 

I flashed with the gst basemap. I can't get the problem to occur now. I had no idea any basemaps would correct TCU issues as I do not mod this car.

Also mpg is alot better.

 

The GST maps are way better than the factory map in every aspect. I think Mitsu should of tuned this car the way Bryan and Richard have. I am very pleased with the GST tune, in every aspect. It really woke my car up and the sst actually feels way better than it did while on the stock tune. Much love for these maps and i give Bryan, Richard and everybody that has helped develope the tunes many kudos for all of their hard work. Good stuff guys!

 

Guys, my intention was not to knock the GST maps or the hard work that the designers put into them. If nothing else, my post should go to prove how little I know about these cars; a fact I have never shy'd away from... And in my defense, I did ask for clarity on them; so that I can learn more.

I am a traditional hot rodder (owning mustangs and camaros in the past), yet I've always been fascinated by these cars! Which is why I finally bought one. I am however completely lost by how complex they are. I'm dumb! (Please ignore the slight amount of drool running from the corner of my mouth)

I was told by local shops that dyno tuning is the only safe way to tune. Admittedly it would be in their best interest to present this line as dyno turning equals $$ for them. Which, again, is why I'm hear to learn as much as I can.. But again, we come to the fact that I am, in fact, dumb!

Please allow me to reiterate, I did not intended to knock the GST maps or those who have put a lot of hard work into them. I apologize if my post read that way. In the future I will be more selective with my thoughts.

 

Don't feel too bad. Anyone with their own business in mind will tell you what suits them. It's not entirely untrue that dyno tuning is better because it is possible to run more boost than intended when using the GST map and boost pill combined. If you don't log or have a boost gauge you won't know.

There's so much to read about these cars it's really difficult to get an idea of how it all works. Took me 3+ months of just reading before I felt confident enough to order the tactrix, flash and log my car.

Razorlab's SST maps are widely regarded as safe by all the tuners I have read about and spoken to.

Also a lot of people who comment here have been on EVO M for years, some don't really realise how much they know is far beyond most people will ever know about their cars.

 

I agree completely. Bryan of GST in my opinion is the patron saint of the Ralliart.

I was one of those guys that had no interest in cars. I found and bought my Sportback after playing around with Edmund's car finder. It seem to be the car that I want except in its stock form, was a miserable car. I drove the car as an automatic and the SST behaved jumpy, weird and lurchy. People that rode in my car were like, "Dude, you sure you know how to drive?"

I honestly thought I had bought a lemon and was ready to trade the car in and take a huge hit only after a few months. As a last attempt, I looked around on the net to see how others feel about the car and see if I can invoke some kind of a lemon law. I end up finding this forum and Bryan's mod. I bought the tactrix cable and figured what do I have to lose in terms of warranty anyways if I was gonna get rid of the car?

Except Bryan's mod saved the car. The SST actually behaved "normal." I thought my car was weird because it had been sitting on the lot for a whole year. I bought my '10 in the early summer of '11 and it was covered in moldy fall foliage still. Clearly no one bother to check out the car in the meantime. However the problem was with the programming of the SST the entire time.

Overnight I went from one of those guys that lumps modders and tuners with ricers to becoming a believer. I would eventually go on to mod my car and getting it custom tuned via the dyno. All my warranties are shot but oh well, Mitsubishi didn't really have the driver's best interest in the first place anyways. If they did, they wouldn't cripple the car so badly in its stock form. I trust my tuner way more than the dealership.

The absolute irony is that my Ralliart converted 2 of my friends into Mitsubishi owners. I loan my car to a friend last summer because I was overseas and when he had to return the key he went out and bought a GSR. He drove strictly muscle cars before that. Another friend just bought a '13 Ralliart because he carpools with me and liked how it drives.

We goofed around in his new car this past weekend and the feeling of loathing came right back. Can't believe they did nothing to update the SST programming in between the years.

Without Bryan's mod, I would've swore off Mitsubishi and would have never looked back.

 

Before this get completely sidetracked by an erronues statement:
The TCU doesn't shift into neutral, it remains in gear; what you are feeling is the clutches disengaging (think clutch in coasting down hill on a manual). If the car slows down too much it will drop gears to prevent stalling. So the delay you are feeling is the clutches re-engaging and then the gears changing. Next time, drive in Manual Mode and downshift as you coast. It's fast at changing to the next gear, not so much 4 gears away.