[tripleblackbeemer]

ye i heard the coding would be a problem but i have it at a shop that say they can do it he showed me his machine that hes a certified bmw specialist has a contract with some bmw dealership in long island.. and the North America tech apparently came across codes tht my car recorded even tho i had it scanned and removed i went in with like BS dual cone intake and rims but my exhaust was a lil chopped up they noted everything tho.. ughh

[FORCED AIR]

Go ask BMW if it has to be coded in, otherwise yes mechanically it will fit.

On what grounds was it voided?


For the guy who asked about leases, understand that they can't void your whole warranty in any case really. They void the warranty on a specific part or system and black list you. Which requires dealers to get approval before doing ANY warranty work.

[achien]

only on up-shifts (even then, I can shift faster by skipping gears), when you go to the track, you need to down-shift.

that's what happens if you take AT to the track.

Originally Posted by Turkeybaster115

Too bad were're faster that the 6mt.

[vase330]

Originally Posted by tripleblackbeemer

ye i heard the coding would be a problem but i have it at a shop that say they can do it he showed me his machine that hes a certified bmw specialist has a contract with some bmw dealership in long island.. and the North America tech apparently came across codes tht my car recorded even tho i had it scanned and removed i went in with like BS dual cone intake and rims but my exhaust was a lil chopped up they noted everything tho.. ughh

Tunes do not scan and delete tranny codes. If you over rev, trash the tranny etc, you are out of luck BMW will know. Heck I even don't buy the whole invisibility thing eith. Its invisible only to a point. Blow up your motor they are going to findout what caused it and if you were tuned no matter how hard you think you concealed it. JMHO.

[dlbrooks18]

Sorry to hear.. please describe how you launch the car from a dig? The ZF tranny is pretty stout, again sorry

[CarleeSWE]

Sorry to hear that How many miles you have on the car? How many miles tuned?

[rismo]

I can confirm that these ZF19Hp gearboxes cannot handle the torque levels when they are around 500nm.... like the jb 1.4 and procede is generating....
A very well informed tech told me that the zf 26hp would be a better candidate, but that one can't be programmed for our cars....

I have the same, slipping upon upshiffting... We are currently in processes of rebuilding my AT with better custom parts.... will post some info on that when ready....

[Willizm]

What rpm were you brake torquing to?

[tripleblackbeemer]

Honestly was ruthless on the tranny at times and I'm sure your right on them finding out someway also w/e learned my lesson and ordered one today by Friday il know wheather the installation goes well

[tripleblackbeemer]

Brake torque as high at it would go cuz I wanna go fast

[Willizm]

^just curious because the longer and higher you brake torque the more heat builds up and can cause issues. I usually brake torque to 2500rpm for a couple seconds then go.

[dlbrooks18]

Originally Posted by tripleblackbeemer

Brake torque as high at it would go cuz I wanna go fast

Yea that's a recipe for disaster.. brake torque like the post said above to max 2500 and let 'er rip..

[spdy330]

I feel bad for the poor guy who is going to end up and buy this car . That is why I ordered mine new. Good luck with your repair OP!

[RR80]

The ZF tranny on my ex E60 on it way out around 50k before I sell it (that's one of the reason I got my 335 ). Also heard bad comments about the new ZF 8 speed tranny that's using in the F01 & F10. ZF

[TurboBimmer]

Originally Posted by rismo123

I can confirm that these ZF19Hp gearboxes cannot handle the torque levels when they are around 500nm.... like the jb 1.4 and procede is generating....
A very well informed tech told me that the zf 26hp would be a better candidate, but that one can't be programmed for our cars....

I have the same, slipping upon upshiffting... We are currently in processes of rebuilding my AT with better custom parts.... will post some info on that when ready....

Is the problem with the AT itself or with the torque converter? Which parts can't handle the torque? Looking forward to your info on this custom rebuild.

[enrita]

my tranny handles fine with over 600 nm. i think it depends how you use it and brake torquing is definetely i recipe for disaster. i also very seldon pull from from a dig.

[Alpina_B3_Lux]

Originally Posted by rismo123

I can confirm that these ZF19Hp gearboxes cannot handle the torque levels when they are around 500nm.... like the jb 1.4 and procede is generating....
A very well informed tech told me that the zf 26hp would be a better candidate, but that one can't be programmed for our cars....

I have the same, slipping upon upshiffting... We are currently in processes of rebuilding my AT with better custom parts.... will post some info on that when ready....

I don't think that this is correct as such. As with the OP, much depends on how you handle your car - you can also ruin the transmission without any tuning of the engine if you don't handle it properly.

I have seen various (AT) cars with very high hp outputs (modified turbos) without any problem with the transmission, in spite of hundreds and thousands of miles on the track.

Alpina_B3_Lux

[KG3356MT]

I agree. It all depends on how you treat the tranny. Even a manual tranny can blow if you abuse it. Just keep power shifting lol

[rismo]

Originally Posted by Alpina_B3_Lux

I don't think that this is correct as such. As with the OP, much depends on how you handle your car - you can also ruin the transmission without any tuning of the engine if you don't handle it properly.

I have seen various (AT) cars with very high hp outputs (modified turbos) without any problem with the transmission, in spite of hundreds and thousands of miles on the track.

Alpina_B3_Lux

I agree to that, but the tech i spoke with is a ZF factory tech, sports fanatic loves to race and abuse, continuesly improving things... And he has looked up some tolerance specs of the box, and an increase of 20% additional load on the box is not calculated and is to his analyses quite above the caclulated capacity tresholds, and those are the internal non public tresholds.

He has some ideas to improve the box, based on his knowledge about for example the 26hp box.

Another aspect is from my personal experience (although not sure if that is of any value ;-) ) I do not do 1/4 miles or perform brakeboosting actions, I do track and do drive crazy now and then, but the engine never get pushed before warmed up properly. Many factors could be the cause of that. In my case having 140000 tuned Km's is not improving the picture neither.

But the opinion of this engineer is at least for me very valuable, especially as he is not looking for business but is a technical oriented person in the ZF performance arena with an open mind about modding cars. And last but not least he is the first person that could show me exact figures and explanaition of the working of the gearbox and what the tolerances are.

His first reaction was actualy, how it could be that BMW has added the 19 and not the 26 in this car... the rating of the 26 is much more in line with the engine performance, also from a safety tollerance point of view. (To his opinion, this was a money safer for BMW)

Maybe also the reason that there is no ZF 19HP in the 335is, 1m and Z4...
Only DCT or MT....

Anyway, it's depressing to have a broken AT, whatever cause... damn expensive joke...

[TurboBimmer]

Thanks for the info. Good to know the tranny held up 140.000 km. So the failure may or may not be related to the tuning, although the added torque will certainly not increase the longevity.

Can you already reveal which parts will be overhauled/improved? Are they able to provide a software for faster shifting times à la Alpina?

[rismo]

About the exact details I have to come back.. A nice article which I have posted before on this forum is:

http://www.speetjenstransmissions.nl...20Pointers.pdf

It gives a lot of info about our tranny.

[Turkeybaster115]

Originally Posted by rismo123

I can confirm that these ZF19Hp gearboxes cannot handle the torque levels when they are around 500nm.... like the jb 1.4 and procede is generating....
A very well informed tech told me that the zf 26hp would be a better candidate, but that one can't be programmed for our cars....

I have the same, slipping upon upshiffting... We are currently in processes of rebuilding my AT with better custom parts.... will post some info on that when ready....

+1 Unfortunately, you are correct. 6hp19 max input torque is 295ft/lbs, no where near the 368 ft/lbs you had http://www.google.com/url?sa=t&sourc...CA0rd8VHgCTKYQ