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#31 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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And the acceleration numbers.
50-130km/h in 3rd from 8.9secs dropped to 8.2secs ![]() |
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#32 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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Today I finally got a set of wheels for the summertime (the other 17" are now dedicated track wheels).
I sourced a set of M5 E34 (3. ![]() It must be the only Z3 with these wheels in the world. I love the way it looks. The offset is massive and I don't need to run spacers anymore. ![]() ![]() ![]() ![]() ![]() ![]() |
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#33 |
CSL Register Uber-poster!
![]() ![]() Join Date: Apr 2008
Location: Uk
Posts: 14,646
Casino cash: $43909 ![]() |
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those honestly do look great Alex.
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#34 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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A stabilizer question.
The normal Z3 has on the front stabilizers the small stabilizer link that attaches to the front swingarms. Here you can see part number 16. The Z3 M has a longer stabilizer link that attaches to the shock absorber. Here you can see part number 17. I can only think that one advantage is that the longer stabilizer link has 2 uniballs while the short one has a uniball and a bushing. Do you think there is any other advantage ? I have the suspension of a Z3 M and I could easily do this "upgrade". Also, have a look at the diameter of the stabilizer link. My Z3 2.8 has 26mm while the Z3 M has 23mm. That's a bit odd. Let me know what you think guys. |
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#35 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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An update
I installed a front strut brace ![]() And installed the 2nd CSL battery on the Z3. 19 kg the 70Ah 16 kg the 50Ah So minus 3kg |
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#36 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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Started changing the brakes with Brembo discs + pads.
I bought a caliper carrier from the E46 and now the discs are 300x22 instead of the original 276x22. ![]() It was a good opportunity to take out the rust and repaint my calipers. ![]() ![]() ![]() Of course, I put new brake fluid in the brake system. ![]() ![]() And a pic with the wheel. ![]() ![]() Here are the old brake pads, EBC Redstuff. I cannot say I was happy with them. ![]() |
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#37 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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And here is my new roof rack.
It's very practical when wanting to transport the trackday tyreset. ![]() ![]() ![]() |
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#38 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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An update about the Z3C as I have done a lot of work.
1. I got a set of GC rear top mounts. The ones I had were shot. The quality is very good and for 99$ you could say they are a bargain. ![]() ![]() The result is very good. The rear end is much more firm. The previous top mounts had a play of 1-2 cm up and down. 2. I did a rear axle rebuild as I did to my CSL some months ago. I wanted to replace the rear bushes (from the beam) and also install a LSD with clutch plates. It's from an M3 E30 and I got it from Mr Gorilla, which I thank for all the help. The ratio is shorter, 3.15 was the original LSD and this one is 3.46. Here is the famous torsen OEM LSD that all non-M Z3s with an LSD have. You can see the special cogs. ![]() Here is the M3 E30 LSD. ![]() I had to swap the drive flanges as the shafts are very different. On the left the M3 E30 and on the right the Z3 one. ![]() ![]() ![]() Here a photo when taking out the rear beam and arms ![]() Then, I decided to take the rust out from the beam. Pain sweat and tears... ![]() ![]() Some anti-rust paint. ![]() Next thing was to remove the beam bushes. They were completely shot. No surprise as they were the original fitment and the car has 193k km. ![]() I used my MIG welder to create my own bush removal tool ![]() ![]() ![]() Here is the beam painted and with powerflex bushes. ![]() Then I replaced the bushing on the diff cover and I cut down 2 fins and made hole and threads to install the temperature sensor. ![]() ![]() The axle joint was also worn out. Again no surprise as it hasn't been changed since the car left the factory. I installed the spare axle joint I have from my CSL. It is reinforced. Here is important to say that you need to replace the bolts with longer ones, same with the ones the CSL has. ![]() On the left the Z3 one and or the right the CSL one. ![]() ![]() ![]() Here are the bolts. ![]() Then I put cables for the oil pump and the gauge. You can also see a switch to turn on/off the oil pump. ![]() Here is the oil pump. I made a mount for it and installed the pipes. ![]() ![]() ![]() ![]() Last but not least I fabricated a piece of aluminium/carbon to mount the gauge and switch. ![]() ![]() The gauge ![]() The switch ![]() |
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#39 |
Driving it like I nicked it
![]() Join Date: Mar 2009
Posts: 2,786
Casino cash: $29971 ![]() |
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And here are the differences in acceleration.
The tests are with 3rd gear, 50-120. Same tyres, fuel tank is full and same road/spot. Ζ3 stock time started : 11:43:16.40 speed : 050.26 km/h height : +0431.70 m time stopped : 11:43:24.00 speed : 120.14 km/h height : +0429.19 m height difference = -2.50 m elapsed time = 7.6 s Ζ3 with M54 intake manifold time started : 17:30:22.60 speed : 050.30 km/h height : +0431.40 m time stopped : 17:30:29.90 speed : 120.14 km/h height : +0431.10 m height difference = -0.29 m elapsed time = 7.3 s Ζ3 with 3.46 differential (instead of 3.15) and M54 intake manifold time started : 13:21:03.40 speed : 051.60 km/h height : +0419.91 m time stopped : 13:21:09.60 speed : 120.81 km/h height : +0426.19 m height difference = 6.27 m elapsed time = 6.2 s Note in the last test I am going uphill (altitude is increased by 6.27m). |
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#40 |
S5, Sport Off, DSC M-track
Join Date: Apr 2008
Posts: 740
Casino cash: $14401 ![]() |
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Hi Alex,
All looking good. At this rate the CSL will be redundant soon. Squeeze another 25/30 BHP out that Alloy lump and it will be a good match on any short tight circuit for its Stable mate. Regards, The Gorilla. |
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