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      05-16-2010, 01:38 AM   #1
e.n335
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M3 GTS engine with DCT - should we learn from BMW ?

Hi,

BMW states, that the DCT components are unchanged in the M3 GTS. Nice.

BUT: They also state, that they fill in 1 additional liter of DCT fluid to compensate the higher load and heat due to the increased power-output of the 4.4 ltr engine.

To achieve the additional GTS displacement ( M3 GTS 4361 ccm engine displacement is still less than M62 / N62 engine displacement ) they mention to use different pistons and a different crankshaft. Cyliner bore ( 92mm ) is unchanged, stroke increased from 75.2mm to 82mm. They don't mention conrods.

Now, should we learn from this ? I guess, yes.

Eugen
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      05-16-2010, 05:19 AM   #2
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Quote:
Originally Posted by e.n335 View Post
Hi,

BMW states, that the DCT components are unchanged in the M3 GTS. Nice.

BUT: They also state, that they fill in 1 additional liter of DCT fluid to compensate the higher load and heat due to the increased power-output of the 4.4 ltr engine.

To achieve the additional GTS displacement ( M3 GTS engine displacement is still less than M62 / N62 engine displacement ) they mention to use different pistons and a different crankshaft. Cyliner bore ( 92mm ) is unchanged, stroke increased from 75.2mm to 82mm. They don't mention conrods.

Now, should we learn from this ? I guess, yes.

Eugen
Whats there to learn from it? Facts are up
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      05-16-2010, 05:33 AM   #3
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Interesting...........
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http://5252motorsports.blogspot.ca/2...3-sleeper.html
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      05-16-2010, 06:55 AM   #4
e.n335
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Quote:
Originally Posted by sehrgut View Post
Whats there to learn from it? Facts are up
See document attached ( sorry, it's in German ) .
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File Type: pdf Technische Info M3 V8 GTS.pdf (366.8 KB, 135 views)
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      05-16-2010, 10:29 AM   #5
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Quote:
Originally Posted by e.n335 View Post
See document attached ( sorry, it's in German ) .
Thanks for the doc. Very interesting. Even more interesting is this:
"Spurverbreitung durch Distanzscheiben vorn (notwendig fur den Rad/Feder Freigang)" = "track widening using spacers at the front (necessary for free space of wheel/fender)"

Lesson : If you order competition package and want to use GTS tire sizes you may need spacers.

Why didn't they build the wheels appropriately? Also they don't mention spacer size.
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      05-16-2010, 06:11 PM   #6
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Nice info.Thanks.
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      05-16-2010, 07:44 PM   #7
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Quote:
Originally Posted by e.n335 View Post
See document attached ( sorry, it's in German ) .
Yes this is very interesting, thanks man.
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