2003 E85 3.0i 6 speed Roadster differential
- Thread starter oalloyd1
- Start date
Just so you know, that will fit a facelift, but isn't the right ratio, as they changed to 3.46:1 on the facelift.
Mike
Mike
Ducklakeview said:
Not 3.46:1 but 3.23:1 on the 3.0si roadster manual :wink:
this ratio (3.07:1) was afaik only used on the 3.0i prefacelift manual roadster
And this diff doesnt fit all z4's; the lesser engines (2.2 and some 2.5) have smaller drive flanges with weaker driveshafts.
Although you can fairly easily swap those drive flanges.
The 2.0 has a complete smaller diff afaik.
GuidoK said:
The E86 3.0si manual has a 3.46 diff, the auto a 3.64...
Pre facelift 3.0 manual was 3.07 and auto 3.46..
Mike
GuidoK said:You're selecting the e86; thats the coupe
The roadster has the 3.23:1 diff.
(so yes, the 3.0si roadster and 3.0si coupe have different diff ratio's)
The TS is selling an e85 diff (as listed in the ad)
Well you learn something everyday, that's both an interesting one and a strange one. I wonder why they used a different ratio si coupe to si roadster. Anyone know the answer?
MACK said:GuidoK said:You're selecting the e86; thats the coupe
The roadster has the 3.23:1 diff.
(so yes, the 3.0si roadster and 3.0si coupe have different diff ratio's
The TS is selling an e85 diff (as listed in the ad)
Well you learn something everyday, that's both an interesting one and a strange one. I wonder why they used a different ratio si coupe to si roadster. Anyone know the answer?
Believe it's to keep the performance figures the same when the weight of the car is different.
Interesting. I didn't think there was any real significant difference between the si coupe and si roadster weight wise.Yorkie Z said:MACK said:GuidoK said:You're selecting the e86; thats the coupe
The roadster has the 3.23:1 diff.
(so yes, the 3.0si roadster and 3.0si coupe have different diff ratio's
The TS is selling an e85 diff (as listed in the ad)
Well you learn something everyday, that's both an interesting one and a strange one. I wonder why they used a different ratio si coupe to si roadster. Anyone know the answer?
Believe it's to keep the performance figures the same when the weight of the car is different.
Marlon said:
Can't see them using a different diff for a measly 10kg of weight. Like I said bit of an odd one this but BMW must have had a reason. After all it would of been cheaper/easier to produce more of the same than add another part into the supply chain that was coupe specific
)Any chance of this being posted/couriered?