How much power can the m10 5spd take ?

[Jean]

How much power can the early e30 318i transmission take before breaking ?

I've seen stock m10 engines handle 200-300hp, but is the transmission able to handle this power for a long time ? I've had a clutch job done on mine recently, about 1k miles ago, flywheel was also resurfaced and new master/slave cylinders were installed along with new tranny ie bushings.

Now I am considering going the m10 turbo route, plus it would be kind of a waste to throw away the tranny after I spend close to $800 on the clutch parts/labor etc. Would I be safe running 200-250whp through it with regular autox/track days ?

So, back to the main question, how strong is the tranny ?

[FredK]

I believe the number touted around the interweb is that the Getrag 240 can handle around ~220 lbs-ft. The clutch, however, probably can't.

[Jean]

And of course there is no other tranny that bolts to the m10 to handle more ?

[asubimmer]

it can handle 240lbs of tq...

at least thats what its rated for

[backtrail69]

And of course there is no other tranny that bolts to the m10 to handle more ?

You could bolt up a getrag 265 or 280 if you wanted. They are expensive though.

[asubimmer]

yeah the s14/265 will bolt up. But good luck finding one and good luck not spending a TON of $$. Not worth it for a 25lbs increase imho.

[Borat]

Whats the code for the M30 'box, has that been mentioned? Haven't done myself but apparently fits, may to make a few clearanc dents on the transmission tunnel or something like that though.

[gstuning]

You can put alot more then 240lbs
The Getrag numbers are not there torque design outputs,
you think the M30 trans was designed for 265LBS ?
When the FI guys put twice as much trough them.

Those are just internet rumours

[asubimmer]

thats what they are rated at, or so I've been told from a MUCH more reliable resource than someone on a forum in iceland. How is that a hard concept to grasp anyway? The 318 is 1.8l the 325 is 2.5l the getrag 240 is rated at 240lbs of tq.