Mmk had a bit of a freaky moment when half throttle in 5th and pushing back to 4th om full throttle my gear dropped and nearly free revved beyond 7k. I did ease up on the throttle as I thought it shifted but not completely(Until I realised it was free revving) and I don't think that should really matter logically anyway


Ive had this weirdness happen a few times only from 5th to 4th and im not sure if its just because I'm running the evox lc/ssport on the ralliart as it never happened before that(I've had that flashed on for 4 months).

It never slips any other time, this would be the 3rd time in 4 months but naturally its scary as ****.

Any ideas? It was in manual sports mode I'm not convinced its a clutch thing because of how well it shifts every other time but hoping someone might have a clue.
SST fluid in their is about 12,000 miles old with a new filter.

Cars making 280hp. It hasn't thrown and CEL It's one of these times I wish someone would crack this bastard TCU for the benefit understanding this weird **** occurring.

===
The only other weird thing I've had happen recently was when the car was semi cold I was driving down my street( long medium hill) in manual sports mode.

I revved it to get it to engage to second(It's always temperamental unless you give it a bit of a rev for it to want to change gears which i presume is a sst warmup thing) and let the car practically roll to a high enough speed with no throttle at all and winging because its at a constant of 4500rpm and wasn't gaining any other speed so I shifted to 3rd(no throttle) then it ghosted on me and I had no gear even when I applied the throttle it just free revved until I shifted back to 2nd gear and it was fine again.

Hope someone might have a idea I would appreciate it

Cheers

 

I have similar mods and the same tranny s/w flash with no slipping/failure to go into gear...

You may have a more nefarious issue that just the sst tune... SRY.

 

Well my tune has the gst SST revisions overlayed on it. Could that be the reason.

My thought is evo x flash on the ralliart sst plus those revisions for the gst fine tuning = bad tym .

I would love rich to comment and see what he thinks

 

I've never had that. It doesn't sound great, to be honest!

Rich

 

Make sure your target loads (boost target load) and torque limits (limits section) are in the range of what the car is actually running. Ralliarts have significantly lower target loads and limits than the Evo stock. If target load is exceeded by a high enough margin, the transmission will attempt to reduce load. It only has one tool to do that. The clutch.

If you address both of these things and they are acceptable then you likely have some other issue. The S-sport flash onto the RA SST does not have any side effects that are not self induced due to not having the rest of the tune correct, triggering issues related to the above paragraph.

 

Thanks mate I appreciate the fast response and same to you Rich . Looks like some more logging .

Can I still have codes thrown that don't show a CEL? I havent checked for any based on that alone but I will double check if that is the case.

 

I've had ongoing dramas with my big brake kit, would a brake that's slightly gripping whilst driving cause it to drop(The brake thing hopefully will be fixed asap it's not noticeable but theirs definite evidence it's doing this).

Also would a event like this get stored on the TCU and how does it work with getting a warning such as a CEL, does that only happened after a xyz amount threshold is reached.

My tuner has said that I would need a MUTIII to read anything TCU side of things. So I'm presuming unless I actually do get a CEL I won't be able to see anything with tactrix and evoscan?



Thanks alot

 

Hi Guys, I would like to correct a statement I made and see if I might come closer to working out the problem. It's actually 5th gear to 4th gear.

Its the only gear bar 1st were if i cruise into it its a bit rocky even in sports mode. If im going flat out 1,2,3,4,5 you wouldnt know the difference but yer those 3 times i did half throttle in 5th and dropped back to 4th to boot it and the clutch released scared the **** out of me and i still get this feeling like it will drop in the same scenario(I test this probably 3-4 times a day to and from work and it hasnt happened since) and its that same hesitation bunny hop feeling in a manual when u do a dud shift but touch wood it hasnt dropped. What i wanted to know is could it be possible my bov reacting with the maf is the problem? Like its happened twice at 50/50 and once full recirc(turbosmart dualport)... and depending how tight my spring on the bov is set will determine wether i get some solid dose or a bit of jerking if im not fully commited on the throttle caused by the maf(to my understanding).


Ive seen a few people with MRs and aftermarket bovs(besides synapse) say similar things about 5th to 4th in the same scenario but these were a couple of years old and the thread owners are mia lol

I hope maybe the bov stab in the dark might shed some light on the situation but considering these MRs ran more torque than my current setup i hope its not just me with a dud sst(every sst owners thoughts lol) again if not im sure ill just import a built transmission id rather know the clutches wore out from longterm wear and tear instead of a design fault.

thankyou in advance

 

I have footage but no friken evoscan recording I'm devastated. Don't mind the music it was a sh** song in a awesome adema album .

Anyways i shifted down from 5th to 4th going 60mph held a constant throttle until i was ready to accelerated then boom it done that crazy s*** went to redline and I eased off the throttle then the gear clicked back in. I'm thinking it ahs something to do with the evo sst flash onto my ralliart as I've had other people reporting a slipping from 4k to 5k in 4th gear then the gear grabs again.

Play is back in HD so you can actually see what's happening (720p). Cheers