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Kristjan
Master Technician

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201 Posts

Posted - May 06 2002 :  07:38:51  Show Profile  Reply with Quote
Tomorrow I`m going to take out whole engine and swap my tranny from auto to manual.
I will try to take some pictures for you guys
Wish me luck ;-)
I have all the parts and I really hope that everything goes fine.
Although I haven`t decided what tranny I will use.
I have one ///M5 and one 3.5 5 speed tranny.

Kristjan from Estonia.


BMW 745 `85 full stock

Edited by - Kristjan on Aug 06 2002 05:58:43

Afshin-Switzerland
Over 745 Posts!

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1847 Posts

Posted - May 06 2002 :  12:54:10  Show Profile  Reply with Quote
will be awaiting to check your pics and posts, I'm also heading to do the same as soon as I get everything together... Still haven't got a tranny, I've heard that ///M5 (E34) tranny wouldn't fit ?!
Have you got a (rare) E28 ///M5 tranny ?

Regards, Afshin.
1982 745i

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Kristjan
Master Technician

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201 Posts

Posted - May 06 2002 :  23:44:49  Show Profile  Reply with Quote
quote:
Have you got a (rare) E28 ///M5 tranny ?

yes, I have E28 ///M5 tranny :)
My friend has E28 M535 with Alpina B7 engine.
He swapped his tranny to Alpina and old one is mine.
BTW! It only costs about 60$ :)




BMW 745 `85 full stock
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M545i
Master Technician

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284 Posts

Posted - May 07 2002 :  01:18:58  Show Profile  Reply with Quote
Think E34 '90 M5 tranny fit M30 engines and are strong!!!!!

Getrag 280 I guess.

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Afshin-Switzerland
Over 745 Posts!

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Posted - May 07 2002 :  02:26:55  Show Profile  Reply with Quote
The ///M535i got a normal M30 engine. The mods are only a ground effect kit. So, its tranny is not different from the normal 735i or 635csi. I thought that you're talking about the very rare E28 ///M5, which got the S100? engine (not sure about the name) 4 valve twin-cam engine, which also fited the ///M635csi and the later model called just ///M6. The tranny out of these cars is strong and a staight bolt on on our E23 745i's. As about E34 ///M5 tranny, I've been told that it doesn't fit. No need to say that I was pretty surprized, cause I allways thought they're the same as the older ///M cars, Maybe diff. mounts ? Maybe diff. length ? Any idea ?

Regards, Afshin.
1982 745i


quote:

quote:
Have you got a (rare) E28 ///M5 tranny ?

yes, I have E28 ///M5 tranny :)
My friend has E28 M535 with Alpina B7 engine.
He swapped his tranny to Alpina and old one is mine.
BTW! It only costs about 60$ :)




BMW 745 `85 full stock



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Kristjan
Master Technician

Status: offline


201 Posts

Posted - May 07 2002 :  03:25:18  Show Profile  Reply with Quote
I think that it`s ///M tranny.
It has 1st gear down.
Normal M30 tranny is 1st gear up.

Any ideas?

BMW 745 `85 full stock
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Afshin-Switzerland
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Posted - May 07 2002 :  05:00:31  Show Profile  Reply with Quote
OK, that's the Getrag sport tranny (and not a ///M one) that you're talking about. It's got no overdrive (a real 5-speed) on these trannys, the 5th gear ratio is the same as on the 4th on the normal 5-speed tranny. that used to be an option, avalable on every E23, E24, and E28.
I doubt that it be internally any "stronger" than the normal 5-speed one. However it would be a definately better choice on our turbo engined cars, because of its closed gear ratios from 1st to the 5th (turbo will keep on spooling).

Regards, Afshin.
1982 745i


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Kristjan
Master Technician

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201 Posts

Posted - May 07 2002 :  05:13:32  Show Profile  Reply with Quote

Ok
Thanks!


BMW 745 `85 full stock
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TCD
Garage Guru

Status: offline


136 Posts

Posted - May 07 2002 :  07:17:34  Show Profile  Reply with Quote
Afshin,
You need to find a Getrag 265 two piece tranny to use in your 745i. The driveshaft you are buying from me will only work with this tranny. The 265 is plenty strong for your car. The 265CR is actually weaker and prone to failure. They are also very expensive to buy and rebuild. Find a tranny from a 1983/84 533/633/733. These had the 265 and also a lighter flywheel. It is 16.5lbs instead of 23lbs!
Todd


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Afshin-Switzerland
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Posted - May 07 2002 :  09:48:34  Show Profile  Reply with Quote
Many thanks Todd, what the heck is the "CR" in 265CR standing for ? In what is 265CR different from "normal" 265 ? On which series was it to find ?(to avoid it, forsure!)
Does the 265 also take 15+ PSI of boost ?

Regards, Afshin.
1982 745i

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TCD
Garage Guru

Status: offline


136 Posts

Posted - May 07 2002 :  10:48:24  Show Profile  Reply with Quote
The CR is the close ratio. Also known as the "dog leg". First gear is lower left. You want the Over Drive 265 with a .81 fith gear. This will be perfect for with your 3.07 diff. I will be running the same setup in my M535i. 745i engine, 265OD tranny, 3.07LSD and hopefully 15psi!
Todd

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