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5 speed upgrade?
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zero idea if the 245 fits up to an m30 engine ... or will hold up to its power / torque. the standard 5 speed solution is the getrag 265/6 (overdrive) gearbox. the alternate if you can find it is the 265/5 (close ratio box). check out the FAQ - Transmissions
e9coupe.com
everything you need to know is in the FAQ ... with one exception - buy the mounting kit from either @halboyles or Coupeking
everything you need to source to do the swap
e9coupe.com
here is the Carl Nelson article on the swap
e9coupe.com
Manual Transmissions
(Under Construction) When the 2800CS made its debut it had a four speed transmission made by ZF. These transmissions are noticeable by the very short casing and an integral shift platform which is part of the casing itself. This made for a very efficient and crisp shift action but when it was...
e9coupe.com
everything you need to know is in the FAQ ... with one exception - buy the mounting kit from either @halboyles or Coupeking
everything you need to source to do the swap
Five Speed Conversion Parts List
NOTICE, this is not a for sale ad! This is a comprehensive conversion kit put together by Paul Cain that he offered on BaT using all BMW OEM parts, to convert an E9 from an automatic transmission to an overdrive 5 speed transmission. This kit with an easy adaptation can also be used to convert...
e9coupe.com
here is the Carl Nelson article on the swap
5-Speed Conversion (Carl Nelson)
CS REGISTER Jan./Mar. 1996 Five Speed Conversion for CS Carl O. Nelson Many times in the past I have been asked about the difficulty of installing a later model 5-speed transmission into the older CS automobiles. At our shop we perform this conversion every other week. The limiting factor is...
e9coupe.com
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Nice car, looks like one side mirror was installed in Europe and the other in the US when it was repainted...
The overdrive would be Getrag 265 and there is a ton of advice here on that. An expert in New England in Mario Langsten and perhaps can help source a 265.
Sage advice? Do it!
The overdrive would be Getrag 265 and there is a ton of advice here on that. An expert in New England in Mario Langsten and perhaps can help source a 265.
Sage advice? Do it!
Another useful link:
e9coupe.com
Getrag 265 Prep (Devinder)
Submitted by: Devinder (2002) Getrag 256 Prep This page is still under construction. I will be adding more as I finish installing the transmission in my coupe. Specifications Gear ratios 1st 3.82 : 1 2nd 2.20 : 1 3rd 1.40 : 1 4th 1.00 : 1 5th 0.81 : 1...
e9coupe.com
Depending on your location you can be pointed to someone relatively near you. Where are you located?
I suppose a threshold question that you should ask is why you want to change to a five speed. As Scott commented recently, the first four gears in the 265/6 are the same as the gears in the four speed. Thus, the primary benefit of having that 5th gear is for long drives at highway speeds. Consider how you are planning to use the car and where you live. If the vast majority of your usage is local trips and shows, the trouble and expense of the conversion may not be worth it.
If you put 4000 miles per year on your car and you get 20 mpg, you are using 200 gallons of fuel a year. Assuming $4 a gallon, you are then spending $800 on gasoline.
Now, if the 5 speed improves your mpg to 25 mpg overall (which would be a lot), you will save $160 in gasoline annually. Compare that to the cost of the 5 speed swap.
Plus, the getrag 265/6 is becoming more and more difficult to find, and it is very difficult to rebuild them because parts are very hard to find.
If I had a four speed in my car, I'm not sure I would change it. And if I did, I would make sure to keep the four speed on hand just in case.
If you put 4000 miles per year on your car and you get 20 mpg, you are using 200 gallons of fuel a year. Assuming $4 a gallon, you are then spending $800 on gasoline.
Now, if the 5 speed improves your mpg to 25 mpg overall (which would be a lot), you will save $160 in gasoline annually. Compare that to the cost of the 5 speed swap.
Plus, the getrag 265/6 is becoming more and more difficult to find, and it is very difficult to rebuild them because parts are very hard to find.
If I had a four speed in my car, I'm not sure I would change it. And if I did, I would make sure to keep the four speed on hand just in case.
5 Speed Conversion
CS REGISTER - Five Speed Conversion for CS - Carl O. Nelson Many times in the past I have been asked about the difficulty of installi...
bmw30cs.blogspot.com
Here are some notes from my installation a couple of years back.
NB Jaymic are in the U.K. Just posting the invoice here to give you an idea of the bits you need
What you need:
Getrag 265 gearbox with speedo gear (and the bell housing!) - you will need the speedo drive from your existing 262
Invoice from Jaymic
See attached file - these bits were all needed!
Other bits you need:
Release bearing fork (arm)
Shifter mechanism tower
You need one of these as well:
https://www.ebay.de/itm/BMW-Stutzsc...676009&hash=item2ae5c45f92:g:-twAAOSwFFVejKYP
Other stuff
You will need the prop shaft shortened. If you want to keep the original then buying a prop shaft is very expensive!
Other suppliers
I bought this mounting kit from Couple King. It saved a huge amount of effort! - https://shop.coupeking.com/products/e9-5-speed-conversion-mount-kit
Instructions
http://e9coupe.com/tech/5speed.html
http://www.bimmerdoc.com/cms/wp-content/uploads/2013/01/E9-5-speed-conversion-article.pdf
Random and possibly helpful links:
https://e9coupe.com/forum/threads/5-speed-shift-linkage-bushing-replacement.20602/page-4#post-319914
https://e9coupe.com/forum/threads/5-speed-gearbox-installation-questions.37621/#post-319957
https://www.realoem.com/bmw/enUS/showparts?id=3435-USA-04-1972-E9-BMW-30CS&diagId=23_0813
https://e9coupe.com/forum/threads/5-speed-gearbox-installation-questions.37621/#post-319897
https://www.online-parts.co.uk/bmw-bike-spare-parts/25111205386_Shifting-Arm.html
NB Jaymic are in the U.K. Just posting the invoice here to give you an idea of the bits you need
What you need:
Getrag 265 gearbox with speedo gear (and the bell housing!) - you will need the speedo drive from your existing 262
Invoice from Jaymic
See attached file - these bits were all needed!
Other bits you need:
Release bearing fork (arm)
Shifter mechanism tower
You need one of these as well:
https://www.ebay.de/itm/BMW-Stutzsc...676009&hash=item2ae5c45f92:g:-twAAOSwFFVejKYP
Other stuff
You will need the prop shaft shortened. If you want to keep the original then buying a prop shaft is very expensive!
Other suppliers
I bought this mounting kit from Couple King. It saved a huge amount of effort! - https://shop.coupeking.com/products/e9-5-speed-conversion-mount-kit
Instructions
http://e9coupe.com/tech/5speed.html
http://www.bimmerdoc.com/cms/wp-content/uploads/2013/01/E9-5-speed-conversion-article.pdf
Random and possibly helpful links:
https://e9coupe.com/forum/threads/5-speed-shift-linkage-bushing-replacement.20602/page-4#post-319914
https://e9coupe.com/forum/threads/5-speed-gearbox-installation-questions.37621/#post-319957
https://www.realoem.com/bmw/enUS/showparts?id=3435-USA-04-1972-E9-BMW-30CS&diagId=23_0813
https://e9coupe.com/forum/threads/5-speed-gearbox-installation-questions.37621/#post-319897
https://www.online-parts.co.uk/bmw-bike-spare-parts/25111205386_Shifting-Arm.html