I looked into this a few years ago, but concluded it wasn't worth the effort for the 6th gear.You will also need a new flywheel, clutch and driveshaft
The only thing you`re getting is a 15% overdrive in 6th gear....a costly "improvement"....I looked into this a few years ago, but concluded it wasn't worth the effort for the 6th gear.
You need the mounting brackets in addition to the above hardware. What I didn't want to tackle is a new driveshaft and any balancing issues.
Actually the 6 speed combined with a 3.07 rear end will render a nice low rpm at 70 mph like he is wanting.
It depends on what he has for a rear end now as to what he will get out of it.
Crowz, he`s already got a 2.90 rear in it....you ain`t gonna do any better than that for relaxed cruising, which I assume is what he`s after.....the rear end is stock for the year. i don't know the ratio. but id like it to run around 21-2500 at 70.
Still will lower it another 400 rpm or so if that is what he wants.Crowz, he`s already got a 2.90 rear in it....you ain`t gonna do any better than that for relaxed cruising, which I assume is what he`s after.....
I'm turning 3k @70 mph. That's just too high.
Why?... I'd like it to run around 21-2500 at 70.
When I bought my 330Ci and it came with six speeds, I thought it was cool.I looked into this a few years ago, but concluded it wasn't worth the effort for the 6th gear.
http://www.bokchoys.com/differential/GearRatios.htmYou guys got me thinking...did the cabrio have a shorter final drive than the coupe? At 70mph in 5th, I'm running at 2750rpm not 3000rpm.
BMW has always been keen on tailoring the final drive ratio to suit the particular chassis & powertrain variant. The E46 sedans used six different ratios among the eight powertrains (RWD/AWD, 2.5L/3.0L, MT/AT). I'd expect the cabrio to have a slightly shorter rear to offset its extra poundage.
OP, if you're more concerned with highway RPM than 0-60 times, you might consider swapping in a differential with a taller (numerically lower) ratio. You'd trade a few tenths 0-60 for a few hundred RPM on the highway, but it's a lot simpler & cheaper than a tranny swap.
113260 miles.When you installed the single-mass flywheel, did you also install a spring-damped clutch disk to replace the original solid-hub design? How many miles on the car?
mine is a convertible if it makes a difference. and by the way, i even have a clutch stop installed.Zeichen311 said:did the cabrio have a shorter final drive than the coupe?
how could you possibly not get better mpg by lowering the rpm by almost 1k?jkrit said:but a bit surprisingly no difference in MPG.
Sure, I had to ask...you never know. :thumbup:113260 miles.
yes of course; it comes as a kit. ... a solid disc would chatter and grumble like a bee in a bottle.
I noticed: Cabrio = cabriolet = convertible. It does make a difference in the final-drive ratio, which is why your cruising RPM is higher than mine. Unrelated to your vibration problem though.mine is a convertible if it makes a difference.
man i wish it were that easy. right now the shop wont even speak to me. i went off on them big time when i brought the car back. i have a very bad habit of saying what i mean, especially when i know i am right and have been lied to and taken. all they would do was to replace the broken cv. then they told me to get out and not come back. they would not fix the cause, just the effect. and that's where i blew a gasket again. i don't even know why they removed the whole drive-shaft to begin with. once the giubo is out, the shaft can be slid and turned down to get it out of the way. the centering bearing was taken off too. no damage there that i can see while it's in place though. warranty, no, im afraid to get this fixed, i am going have to sue. but i can't do that till i have it really fixed and get in writing what they screwed up. so now the problem is cost. my local BMW dealer wants 6-800 bucks i don't have to drop the tranny troubleshoot and document it. plus, i'll probably have to buy another valeo kit for 600. basically start all over again, but more to fix this time. that's why im thinking put the 6 speed in now.right now you have at least some leverage on the shop that screwed up your car, to get them to make it right. Make them honor the terms of the warranty they provide on their work.