Liam's Z4C race car project

brillomaster · Post by **brillomaster** » Sun May 31, 2020 11:11 am

Looking good! Makes me miss going on trackdays. Great to see tracks are starting to reopen again, makes you think that racing behind closed doors wouldnt be too difficult... crowds arent that big for club racing anyways

MrPT · Post by **MrPT** » Sun May 31, 2020 1:05 pm

Nice. So you’re getting on for Z4M power-to-weight now but obviously with a lot less weight (especially in the nose)?

N52 sounds great. Still a fantastic engine.

DaveD · Post by **DaveD** » Tue Jun 02, 2020 6:15 am

Well done Liam. Great to be on track finally. Amazing how much you’ve done yourself to prep the car. Inspirational stuff.

Vanne · Post by **Vanne** » Fri Jun 05, 2020 4:14 am

Looks good man, sounds great. nothing fell off, thats a positive shakedown

is your rear sway adjustable? that might sort your turn in issue.

MrPT · Post by **MrPT** » Sun Jun 07, 2020 3:59 pm

Liam22 wrote: ↑Fri May 22, 2020 11:45 am I quite like the OEM shift knob, but it does look a bit pedestrian!

I'm open to suggestions, provided that they use the OEM fitting (no grub screws) and don't add weight.

Had wondered if the BMW Mini (F55) shifter would be a straight swap...

viewtopic.php?f=7&t=122399

A classic knob.

Darkangelv2 · Post by **Darkangelv2** » Sun Jun 07, 2020 4:18 pm

The guy who did my interior has a coolerworx shifter. Very much rates it and it looks fantastic.

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Wursle · Post by **Wursle** » Sun Jun 07, 2020 5:46 pm

Coolerworx Ftw

Silverzedtom · Post by **Silverzedtom** » Sun Jun 07, 2020 7:00 pm

MrPT wrote: ↑Sun Jun 07, 2020 3:59 pm
Liam22 wrote: ↑Fri May 22, 2020 11:45 am I quite like the OEM shift knob, but it does look a bit pedestrian!

I'm open to suggestions, provided that they use the OEM fitting (no grub screws) and don't add weight.

Had wondered if the BMW Mini (F55) shifter would be a straight swap...
viewtopic.php?f=7&t=122399

A classic knob.

If it arrives

Liam22 · Post by **Liam22** » Sun Jun 07, 2020 10:05 pm

Thanks for the shifter suggestions. My current favourite is

https://www.garagistic.com/products/cha ... nt-shifter

Did an oil change today and I'm currently battling with a few issues:

1. Can't read oil level. I guess the sender is kaput
2. Got a couple of 2D06 codes from the air flow meter. Cleaned it and found one of the airbox spring clips missing which might be leaking air.
3. Radiator light comes on frequently, combined with 2E83 code. Ran the water pump bleed cycle a couple of times and topped up, but still there.
4. Shortly after I started the engine after refilling it just stopped. No coughing, no electrical issues, just stopped. Weird!

I've also ordered 2 new VANOS solenoids and new front brake pads... it's looking like an expensive month, so the shifter is on the back-burner!

adam1985 · Post by **adam1985** » Mon Jun 08, 2020 10:20 am

Liam22 wrote: ↑Sun Jun 07, 2020 10:05 pm 3. Radiator light comes on frequently, combined with 2E83 code. Ran the water pump bleed cycle a couple of times and topped up, but still there.

Have you checked the sensor plug is connected ok at the bottom of the resevoir?

Ed Doe · Post by **Ed Doe** » Mon Jun 08, 2020 11:06 am

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This is my rtd shifter (ignore disapproving doggo in the back - he doesn't like my Tillets

)

MiniH · Post by **MiniH** » Tue Jun 09, 2020 10:23 am

Great thread and a good read.
I’m looking for a 3.0i to strip and build into a race car so I’ll be popping back here for ideas!

Liam22 · Post by **Liam22** » Sat Jun 13, 2020 8:06 pm

Autodoc are taking forever to ship the VANOS solenoids so I'm getting on with some minor jobs instead.

Replaced the washer bottle with a small kit car item. Doesn't look like much, but 450g saved

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Darkangelv2 · Post by **Darkangelv2** » Sat Jun 13, 2020 8:50 pm

And moved the weight backwards. Like it

Liam22 · Post by **Liam22** » Mon Jun 22, 2020 2:53 pm

Some more fiddling/ fine tuning.

Discovered that one of the brake cooling ducts had slipped off the bumper intake. The offside brake pads noticeably more worn as a result!

It is very difficult to attach the duct hose to the bumper so I decided to attach the duct to the front crash structure instead of the bumper. Took an insane amount of time to trim the ducts to match the interior contours of the bumper, but I can confirm that the bumper can now be removed in a couple of minutes now!

The facelift fog lamp holes are quite small but I've got the duct lined up nicely now

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New VANOS solenoids are fitted and I've booked a rolling road power run for this Friday. With bhp and heat soak on my mind I decided to wrap the airbox in shiny aluminium tape to reflect some heat away. Might not be worth much in power terms but looks better than I expected.

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