cool story bro. This is why this car would slaughter you like you were standing still even with it not running correctly. do you realize his car makes nearly 2x the power your terd does? dont expect any help from people here if you're going to post stupid garbage in a thread you dont belong in.

 

 

This stuff is all French to me.


It did it once at the track a long time ago and I think since I did the service, it has been 99% worse, happening almost every 3-4 shift in m mode only.

 

http://s1048.photobucket.com/user/me...eae17.mp4.html


This is the first time it ever did it last summer at the track. You can hear it at the end of the run when I hit it into 4th, it cuts out then goes again.

 

Here's another from the other day. I shift into 4th, it cuts out then applies power again and rights after I let off in 4th.

http://s1048.photobucket.com/user/me...9pr8a.mp4.html

 

woahhh, badass.

not everybody cares about having the fastest car in the world, and as we all know, stock cars tend to be the most reliable.

not a useful post by that guy, but a smart one.

OP, send this data to the bloody company that built the tranny. They should be providing you with tons of after-the-sale support given how much you've spent with them over the years.

 

If it's the same mechanical function between M and S and there's an issue in M but not in S then you can rule out a mechanical issue.

 

+1000

Call weistec, post their thoughts later

 

Lol... Sorry, this reply just made me laugh

 

Settle down Francis.

 

This may be stupid but have you checked the trans fluid level? Hope it is an easy fix and gets sorted asap

 

this sounds exactly like what mine was doing before i had to rebuild it but mine was doing it in every mode but mine was popping out of gear

it could be a electronics problem as someone said above

I think the best thing is to speak to Steve and ask his opinion

 

I have other vehicles to drive around this is my toy, but thanks for your input. Obviously I've been in contact with Steve and he's been nothing but helpful, I am documenting this and reaching out the community to see if anyone has experienced this issue before.


I've been talking to Steve the whole time, he said I can send them the tranny and they will take care of me, but obviously that is a last resort, I'm checking the easy things first.

I'm doing this soon, I would have done it when I did the adaption tests but the tranny fluid was way too hot to check the level properly and I didn't have time. This is on the list and I hope it's something simple like this.

 

I've been talking to Steve the whole time, he said I can send them the tranny and they will take care of me, but obviously that is a last resort, I'm checking the easy things first.



For sure mate its hard for us sending stuff across country and also costly
HOpe you sort it out asap

 

the filltime is mostly what your looking at and the different temperatures. -20 to +20 is the range. Anytime you start getting getting really high or low there is probably a mechanical issue. Yours are almost 0 which means its probably not a mechanical problem. typically a good transmission will be in the -5 to +5 range on average. When my 3-4 shift was slipping like crazy under full throttle on the stock transmission and had values around 15-18 for fill time - just to give you an example. The more positive means it is having to apply alot more to grab - typically associated with a loose tolerance or possible leaking seal. The negative value meaning it is taking less to apply then it is expecting - like too tight of a tolerance, maybe a broken peice or friction compound that has come apart and stacked up on itself. The different termpatures - obviously show if it's temperature related - so possible clearance problem with a sticking check ball or spring depending on temp. considering it's only an issue in manual mode im going to say its an electronic/tune problem. As I think all of us modified guys know. It's tough for the tuners to dial the cars in perfect without them being there in person. Fluid check would definitely be the top priority but it wouldnt really explain why it only does it in manual. That is strange, it's almost like its limiting the power / torque so the motor doesnt hurt the transmission.

on a side note...
I was trying to change some programming in my front sam which required me to do a software update to the front sam and central gateway. This further caused some wierd communication protocol faults with the m.e. I ended up having to re-scn code my m.e. and it totally screwed up my car. Tune wise it ran ok but had no throttle response, no downshift blips, pounded the gears (that part i liked). i had to send it back for steve to undo what i screwed up, he wasnt even exactly sure what got changed that made it act all wierd. It took 2 tries back and fourth to get it right but It's back to it's savagery as normal.

Any chance you have xentry w/ engineering/workshop mode and you've been playing with some scn coding or settings. Theres so much encrypting and back door tuning wizardry on these ecu's just the slightest change can make it all go to ****.

 

No I haven't touched anything. So my values in that screen shot look normal, that's good.

It does seem like a electronic/tune issue to me, whether it's ME or TCU I am not sure...

I will check fluid soon.

I agree it does feel like it limiting torque then shifting. I can hear it bleeding boost as it closes the throttles between the shift.

 

I've been toying with the idea of Weistec tranny mods. How did shift issue sort out?

 

Just removed the tranny today actually. Shipping it with another guy from here to Weistec. They are going to rebuild with the revised clutch pack.

Funny the guy from here has a tune and header car and his shifting into 4th gear only is screwed up too. Must be something with 4th gear with these trans.

 

My car is doing a similar thing.
Mbh headers w eurocharged v5.
At part throttle and driving like a citizen tranny shifts clumsily into 4th. If i stab the throttle once im cruising, its horrible. Does an over rev and shifts from 3-4.
Full throttle from a stop it shifts fine at redline.
Please keep me posted on weistec's findings.
Im thinking of having the tranny looked at locally by eurocharged canada as i believe they can get weistec parts.

 

No doubt, please keep us posted.


I was seriously looking at the Weistec 722.9 modified valve body. that's most likely as far as I would take it myself.


That is unless a 11" torque converter that isn't crazy money becomes available.


Shardul mentioned last year that there might be something available by this time but sadly, not.