best box to use
Moderator: martauto
i just came across 2 735i 89 models at right money.as this engine is now going into my 320 e30 i would like to know what gearbox just bolts on as both cars are auto.as this will be a drift car is there a box with lower ratio that would be good for 1st 2nd nd 3rd gear as top end wount matter.is there any other parts needed for the conversion bar engine mounts and exaust because i have the 2 complete cars.
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gooner1
- Out humping Reindeer
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Does this help damo.
Transmissions An appropriate transmission for the 335i can be found in many different models and series. The 5-, 6- and 7-Series all had a transmission that will fit the bill. Several models within each series will be possible sources. For example:
e28: 525i 528i 535i M535i
e23: 728i 728 733i
e24: 628 630 628CSi 635CSi
The newer versions of the M30 also have appropriate transmissions. If an older engine is to be used the transmission from a newer car can not be used. The newer engines will, however accept the older transmissions. Any of the following cars will be suitable donors for the transmission (to be mounted to a newer engine):
e34: 530i 535i
e32: 730i 735i
The sport transmissions from the following cars are also acceptable substitutes for the standard manuals listed above:
e28: M5
e24: M635CSi
e34: M5 3.6 M5 3.8
e30: M3
Alpina: B6 2.8 B6 3.5
The sport transmissions, listed directly above, all have close ratio gearing. It should also be noted that the fifth gear in each of these gearboxes has a ratio of 1:1. As a result a numerically lower differential is needed to provide a reasonable top speed. Those from the ETA cars are suitable; either the 2.93:1 or the 2.73:1 would serve this purpose well.
Transmission Cross Member
Transmissions An appropriate transmission for the 335i can be found in many different models and series. The 5-, 6- and 7-Series all had a transmission that will fit the bill. Several models within each series will be possible sources. For example:
e28: 525i 528i 535i M535i
e23: 728i 728 733i
e24: 628 630 628CSi 635CSi
The newer versions of the M30 also have appropriate transmissions. If an older engine is to be used the transmission from a newer car can not be used. The newer engines will, however accept the older transmissions. Any of the following cars will be suitable donors for the transmission (to be mounted to a newer engine):
e34: 530i 535i
e32: 730i 735i
The sport transmissions from the following cars are also acceptable substitutes for the standard manuals listed above:
e28: M5
e24: M635CSi
e34: M5 3.6 M5 3.8
e30: M3
Alpina: B6 2.8 B6 3.5
The sport transmissions, listed directly above, all have close ratio gearing. It should also be noted that the fifth gear in each of these gearboxes has a ratio of 1:1. As a result a numerically lower differential is needed to provide a reasonable top speed. Those from the ETA cars are suitable; either the 2.93:1 or the 2.73:1 would serve this purpose well.
Transmission Cross Member
