Miten kävis zetan hammastanko? http://forums.bimmerforums.com/forum...=steering+rack
Jos laittais 1.8 z3:n tangon niin saattais olla jopa halvempi. Aina kun käy tiskillä kyseleen osia ja sanot m3 niin ekana kuuluukin että tää onkin sit aika kallis...
Miten kävis zetan hammastanko? http://forums.bimmerforums.com/forum...=steering+rack
Jos laittais 1.8 z3:n tangon niin saattais olla jopa halvempi. Aina kun käy tiskillä kyseleen osia ja sanot m3 niin ekana kuuluukin että tää onkin sit aika kallis...
noita z3,sen tankoja vaan ei oikeen käytettynä löydy..
KL-Varaosassa M3 3.2 hammastanko 1200e. Jos antaa vaihdossa vanhan hammastangon niin saa vielä 244e hyvitystä.
pitääpä kysellä sieltä.. käytettynä löytyisi A1 kuntoisia 3.2l tankoja 300-400 eurolla, mutta pitäisi saada varmuus että passaako suoraan paikoilleen ?
myös toimiva 3.0l hammastanko kelpaisi, mutta ei oikeen ole löytynyt ehjää ja toimivaa..
mites siitä nopeampi tuli kun hitaamman tangon laitoit?
3,0 on hitaampi keskialueelta, nopeutuu vasta lähellä äärilaitoja.
Moni kuvittelee 3,0 olevan nopein, vaikka on oikeasti hitain alueella jota normaalisti ajossa/radalla tarvitaan.
Ohessa hivenen tekstiä siitä, tosin englanniksi..
M3 3.0 - 39 mm/rev - the slowest available rack. This is a variable ratio but it is slower than standard until 200 deg hand wheel angle .
M3 3.2 and standard E36 - 45.5 mm/rev - the M3 3.2 rack has restricted lock.
Z3 rack - 53.5 mm/rev - by far the quickest rack you can fit.
E46 compact rack - 50 mm/rev - apparently this also fits the E36.
The one to go for on the e36 is the Z3 rack from a 4cylinder model
This is good info worth repeating and will hold no surprises for many on this forum as the same data is frequently discussed for the purposes of installing a quicker rack and pinion in the E30 M3.
However, I'm not convinced the scenario is quite as straightforward. I'm pasting in below some bits and pieces copied from other forums - the lack of a definitive conclusion is fustrating
E36 M3 3.0: Variable between 1:19,8 on centre to 1:14,4 full lock.
E36 standard: 1:17,8
E36 M3 3.2: 1:17,8 with rack travel limiters
Z3 non M: 1:15,4
Altough M3 3.0 has a variable rate, this only becomes faster after you turn the wheel 200 degrees or so. This makes is useless as most track corners can be made with the wheel turned only around 90 degrees.
From what I believe the M3 runs the rack limiters because the ARB is connected to the strut. This means if you turn the wheel, the shock rotates and the ARB droplinks will rotate in their top mounting point. Obviously, turn it too far and you risk breaking the droplink.
There has been some mis-information for a while about the E36 rack ratios plus I remember someone on here running an E36 3.0 M3 rack in their E30. I have spent some time doing some measurements plus confirmed this data direct with ZF (I know someone who works there who can access drawings on their system).
The standard way ZF quote on-centre (straight ahead) ratio is in mm/rev, which is the travel in mm of the rack bar per revolution of the hand wheel. The higher the mm/rev the faster the rack.
M3 3.0 - 39 mm/rev - the slowest available rack. This is a variable ratio but it is slower than standard until 200 deg hand wheel angle
M3 3.2 and standard E36 - 45.5 mm/rev - the M3 3.2 rack has restricted lock.
Z3 rack - 53.5 mm/rev - by far the quickest rack you can fit.
E46 compact rack - 50 mm/rev - apparently this also fits the E36
Because the M3 3.0 has a variable rack it has the smallest lock to lock at 3.0 turns but don’t be fooled it is the slowest by a country mile. A worthwhile upgrade for any 3.0 M3 (or a track based E30 with one of these fitted) would be to fit a standard E36 rack (or even a Z3 rack) which is what I did a year ago with a noticeable improvement.
The Z3 rack bolts straight on just needs a small bracket to mount the pipes - approx 50mm flat plate. Have a look on e36coupe as M3 compact supplied a picture.
After a lengthy forum debate here, and much assistance from forum users elsewhere also, the Z3 rack proved to be the one to use. It isn't ideal at 2.75 turns but it's good enough and cheap enough/readily available, sorted, done and dusted quite painlessly.[8D]
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