Apologies for off topic 330D/125D question

andru · 11-24-2015, 04:19 AM

I posted in the wrong section originally.

Sorry for asking here but I know you are very informative when it comes to the F series.
I had my 2014 F21 125D remapped by Unicorndevelopments in Stockport on Thursday. The results were very impressive with 276bhp and 388 nm torque. I've just been informed that the 125D may in fact have the same gearbox set up as the 330D. If so then I am not really worried about the issues with the gearbox.

If anyone could confirm this one way or another I'd be very grateful.

Cheers.

Apl440i or 335d? · 11-24-2015, 04:40 AM

388nm?

:

Nick Malaka · 11-24-2015, 05:26 AM

What does an 8AT look like when it explodes?

Scottiedog · 11-24-2015, 07:15 AM

Quote:

Originally Posted by Apl000?

388nm?

:

Do you mean ft/ib?

teaston · 11-24-2015, 07:50 AM

Yeah he means lb/ft, standard torque is 450nm

OP there are several versions of the ZF 8AT gearbox, yours most likely has the 8HP45 with max torque of 500nm

330d & 335d both have the 8HP70 with max torque of 700nm:

https://en.m.wikipedia.org/wiki/ZF_8HP_transmission

ZeroFx · 11-24-2015, 08:41 AM

you got a dyno saying 278 bhp?

Mike200 · 11-24-2015, 04:05 PM

Quote:

Originally Posted by andru

I posted in the wrong section originally.

Sorry for asking here but I know you are very informative when it comes to the F series.
I had my 2014 F21 125D remapped by Unicorndevelopments in Stockport on Thursday. The results were very impressive with 276bhp and 388 nm torque. I've just been informed that the 125D may in fact have the same gearbox set up as the 330D. If so then I am not really worried about the issues with the gearbox.

If anyone could confirm this one way or another I'd be very grateful.

Cheers.

According to Real OEM web site your 125d has the auto below.
http://www.realoem.com/bmw/enUS/show...diagId=24_1504

It is not the same as the 330D.

andru · 11-25-2015, 01:19 PM

Quote:

Originally Posted by ZeroFx

you got a dyno saying 278 bhp?

Yes I have the dyno printout of 276bhp. On a standard run it gave 221.4 which is slightly over stock.

teaston · 11-25-2015, 01:27 PM

Quote:

Originally Posted by Mike200

According to Real OEM web site your 125d has the auto below.
http://www.realoem.com/bmw/enUS/show...diagId=24_1504

It is not the same as the 330D.

Ah so it's the 8HP50, still with 500nm max torque.

andru · 11-25-2015, 02:07 PM

I think I will just have to be careful on how and when I put my foot down at low speeds. Will it be better/ safer to stay away from quick away from the lights type of driving?

Watsey · 11-25-2015, 02:19 PM

At a peak of 390lb/ft, 528nnm, you are just over the gearbox rating. Should be fine with some mechanical sympathy, especially until engine and gearbox are up to operating temperature.

andru · 11-25-2015, 02:30 PM

Quote:

Originally Posted by Watsey

At a peak of 390lb/ft, 528nnm, you are just over the gearbox rating. Should be fine with some mechanical sympathy, especially until engine and gearbox are up to operating temperature.

Thanks for the reassurance on that. I certainly would not abuse the box when it was cold. I thought it would be safe as it is only slightly above.

Mike200 · 11-25-2015, 02:48 PM

Quote:

Originally Posted by teaston

Ah so it's the 8HP50, still with 500nm max torque.

Just checked the pre LCI and that has the 8HP45 is that 450nm recommended max torque?

http://www.realoem.com/bmw/enUS/show...diagId=24_1328

teaston · 11-25-2015, 03:08 PM

Quote:

Originally Posted by Mike200

Just checked the pre LCI and that has the 8HP45 is that 450nm recommended max torque?

http://www.realoem.com/bmw/enUS/show...diagId=24_1328

No if you look on the wikipedia page link i posted above they're both 500nm for diesels

SteveChester · 11-25-2015, 04:52 PM

Anyway it is quicker?

andru · 11-26-2015, 01:30 AM

Quote:

Originally Posted by SteveChester

Anyway it is quicker?

Unbelievably Quicker

11-24-2015, 04:19 AM	#1
andru Private 12 Rep 88 Posts Drives: BMW LCI 125D M Sport Join Date: Mar 2015 Location: Bridgend South Wales iTrader: (0)	Apologies for off topic 330D/125D question I posted in the wrong section originally. Sorry for asking here but I know you are very informative when it comes to the F series. I had my 2014 F21 125D remapped by Unicorndevelopments in Stockport on Thursday. The results were very impressive with 276bhp and 388 nm torque. I've just been informed that the 125D may in fact have the same gearbox set up as the 330D. If so then I am not really worried about the issues with the gearbox. If anyone could confirm this one way or another I'd be very grateful. Cheers.
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11-24-2015, 04:40 AM	#2
Apl440i or 335d? Colonel 480 Rep 2,324 Posts Drives: F30 335D Join Date: Jan 2013 Location: Walton on Thames iTrader: (1)	388nm? : __________________ E46 Coupe 320d M Sport Gone. E92 320d M Sport Gone. F30 335d M Sport Gone.
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11-24-2015, 05:26 AM	#3
Nick Malaka Banned 102 Rep 239 Posts Drives: Anything but diesel... Join Date: Nov 2015 Location: Eastbourne iTrader: (0)	What does an 8AT look like when it explodes?
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11-24-2015, 07:50 AM	#5
teaston Banned 10995 Rep 32,881 Posts Drives: X3 M40d Join Date: May 2012 Location: The High Seas iTrader: (1)	Yeah he means lb/ft, standard torque is 450nm OP there are several versions of the ZF 8AT gearbox, yours most likely has the 8HP45 with max torque of 500nm 330d & 335d both have the 8HP70 with max torque of 700nm: https://en.m.wikipedia.org/wiki/ZF_8HP_transmission
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11-24-2015, 08:41 AM	#6
ZeroFx Major 454 Rep 1,373 Posts Drives: M4x Join Date: Apr 2014 Location: West Mids iTrader: (0)	you got a dyno saying 278 bhp?
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11-25-2015, 02:19 PM	#11
Watsey Major General 6407 Rep 8,496 Posts Drives: F31 330D sDrive M Sport Join Date: Jun 2015 Location: On sabbatical. iTrader: (1)	At a peak of 390lb/ft, 528nnm, you are just over the gearbox rating. Should be fine with some mechanical sympathy, especially until engine and gearbox are up to operating temperature. __________________ Current : F31 330sD, remapped, Ohlins Road & Track, Millway camber plates, Quaife LSD, Stoptech brakes + Pagid RSL1 pads all round, Weichers front strut brace, Eibach front & rear anti-roll bars, Michelin MP4S.
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11-25-2015, 04:52 PM	#15
SteveChester Brigadier General 2472 Rep 4,653 Posts Drives: F82 M4 Join Date: Oct 2009 Location: Chester iTrader: (0) Garage List 2014 BMW F82 M4 [0.00]	Anyway it is quicker? __________________ Steve Roberts UK F82 M4 I'm running the 2024 London Marathon for the British Forces Foundation - https://www.justgiving.com/fundraising/sr5/
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