M10 gearbox on an M30

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Scruffymurphy
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Mon Aug 30, 2010 1:01 am

I know it's been said many times that an M10 gearbox can used on an M30, but has anyone done it and what flywheel/clutch can be used?
Scruffymurphy
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Tue Aug 31, 2010 11:56 am

Bump
Anyone know any details on this?
e21Jason
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Tue Aug 31, 2010 12:35 pm

Yes

m10 box with matching flywheel and clutch

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leeparkes
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Tue Aug 31, 2010 9:23 pm

How much can these M10 boxes handle?
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
Scruffymurphy
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Tue Aug 31, 2010 9:25 pm

leeparkes wrote:How much can these M10 boxes handle?
That's what I was wondering and how does the M10 clutch hold up to the M30 torque? Has anyone any first hand experience?
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Gunni
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Tue Aug 31, 2010 10:23 pm

The stock clutch will not handle a B35 , maybe a B28.

Gearbox can handle LOTS´s
With great challenges comes great engineering.

Gunni
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Rav335uk
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Tue Aug 31, 2010 10:28 pm

I think it will handle the torque, but maybe not for long, sure Jason will know :cool:
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Gunni
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Wed Sep 01, 2010 9:24 am

A 335i I built back in 2006 has a M10 box, has been drifted all this time and been a general playtoy and the m10 box is still just fine.

They can handle things just fine.
With great challenges comes great engineering.

Gunni
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Scruffymurphy
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Wed Sep 01, 2010 1:09 pm

That's all I wanted to know. I was bidding on a 735i auto E32 on ebay, but didn't win anyway. I'll keep an eye out for another cheap one.
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Gunni
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Thu Sep 02, 2010 6:48 pm

you need a new m10 clutch.

The flywheels between M10 and M30 are the same size , but the surface for a clutch on the M10 one is smaller then on a M30 one , the larger pressure plate get´s in the way of the M10 box.
With great challenges comes great engineering.

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johnl320
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Thu Sep 02, 2010 10:08 pm

What clutch do you need then Gunni?
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Gunni
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Thu Sep 02, 2010 11:37 pm

I used a Spec Stage III clutch and it handles things just fine.

Now though I´d find a sacshs m10 performance clutch and possibly a 6 puck disc
With great challenges comes great engineering.

Gunni
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leeparkes
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Thu Sep 02, 2010 11:42 pm

Good info this, it took me ages to find my replacement M30 gearbox. M10 boxes are fooking everywhere, i know of 3 off the top of my head.
Im also guessing the M10 fly/clutch set up is quite light too.

Is the M10 prop and linkage used?

Mmmmm...
Cypriotgeeza wrote:I done both my mates in my old 318is
felt so proud,even tried it with a E30 325i and got put in my place.. :o:
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Gunni
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Fri Sep 03, 2010 1:08 am

in a E30 I used a M20 driveshaft with the M10 gearbox on the back of a M30 engine.

I don´t know if a M10 DS would do the same.
With great challenges comes great engineering.

Gunni
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Gunni
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Fri Sep 03, 2010 9:32 am

I' should note.

The M20 shaft i used is from a 320i E30

NOT a 325i.
With great challenges comes great engineering.

Gunni
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johnl320
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Fri Sep 03, 2010 9:06 pm

I have an m10 gearbox fitted with a standard flywheel and standard clutch, have'nt noticed any slip but have another clutch waiting.
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