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How much power can a 716.6xx 6spd Gearbox handle?

Old Oct 16, 2016 | 12:08 PM
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'62 220SEx2, '65 250SE, '85 380SL, '99 CLK430
How much power can a 716.6xx 6spd Gearbox handle?

Hi guys, Has anyone here ever passed high power (500ish +) through a 716.6xx before?

Im working on a R107 with a M103, Holset HX-55... i have a e36 in sight with 520whp to CLOBBER..

So im looking into transiassion options that would bolt up to the M103. I found a 716.631 that i can pick up for $200.
But im not sure how much power these manual boxes can handle.
Below is a little background on me and my R107. Thanks.
97% documented.. Pics
http://www.benzworld.org/forums/r-c107-sl-slc-class/1854410-my-85-380sl-megasquirt-project-progress.html#/topics/1854410?_k=qjgisg

Last edited by Traz; Oct 16, 2016 at 12:12 PM.
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Old Oct 16, 2016 | 02:16 PM
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What is the reason you put this question in diesel section?
R107 never come with diesel, have they?
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Old Oct 16, 2016 | 02:40 PM
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'62 220SEx2, '65 250SE, '85 380SL, '99 CLK430
Originally Posted by kajtek1
What is the reason you put this question in diesel section?
R107 never come with diesel, have they?
I put it in Diesel forum just incase someone here had a high performance diesel setup... Diesels usually put out oodles of torque, and all that torque through a 716.6xx might help point me in the right direction. so who else better to ask.
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Old Oct 16, 2016 | 02:51 PM
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I think roadster or vintage forum will find you more owners who do swaps.
MB diesels run forever, so nobody is messing with them, not to mention that MB never made 500 hp diesel for passenger cars. Not even close.
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Old Oct 16, 2016 | 03:23 PM
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'62 220SEx2, '65 250SE, '85 380SL, '99 CLK430
Originally Posted by kajtek1
I think roadster or vintage forum will find you more owners who do swaps.
MB diesels run forever, so nobody is messing with them, not to mention that MB never made 500 hp diesel for passenger cars. Not even close.
Maybe my choice words murked up the whole idea, or are you answeting for everyone else?

I have a 380sl.
I am swapping the M116 for a M103.
M103 and diesels share the same flange pattern.
So then the auto and manual boxes interchange.
It is documented that modified MB diesel exists (450hp) =
way more than 600 lb/ft torque. On a diesel.

Therefore; im simply putting out feelers to see "IF" anyone here is possibly running any manual boxes. If so which one (716.6xx)
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Old Oct 16, 2016 | 05:43 PM
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That is big IF, so good luck seeking the answers here.
Now talking about modifying MB diesel engines, this guy pull 600 HP form old 3-liter, but I doubt he is using any transmission you are considering
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Old Oct 16, 2016 | 07:19 PM
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'62 220SEx2, '65 250SE, '85 380SL, '99 CLK430
Originally Posted by kajtek1
MB diesels run forever, so nobody is messing with them, not to mention that MB never made 500 hp diesel for passenger cars. Not even close.
https://www.youtube.com/watch?v=24afjVqm2Uw
Those were your words..

The MB never made a highpowered diesel motor. But it is possible.

so maybe if you stop trolling my post others who may be more knowledgeable than you are may still care to chime in.
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