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actually, the fact the parking brake light on as well makes me believe it’s the wheel speed sensor even more. Every BMW that I’ve worked on since the E chassis days will throw traction, ABS, and parking brake light on when they go out. as far as that vertical acceleration sensor, you’ll get a...

Any chance you bought these locally? I just sold a set to a guy in LA/OC

Unless if you’re also burning it, it’s coming from your CCV rather than PVC. And unless if it looks like it’s shitting out a ton of oil, looks like they’re both functioning normally.

This almost looks like what happens when the thrust bushing on the steering rack is too tight. When it’s too tight, you’ll have issues with the steering wheel returning to center; however, the clicking is usually associated with too loose of a thrust bushing. See here...

Running a BMS spacer with the Wagner. I probably did about 6-7 track days prior to the spacer. Whether it made a difference was pretty difficult to tell. Placing my hand on top of the intercooler after runs felt cooler, but IAT’s didn’t seem to improve. I had to make small notches in the...

You seem to offer advice on things often and you don’t have any real advice to give. Z4m40i

the cores sometimes do not have the brass fittings pressed into the wheel core. In the first photo, the red arrows show the locations of 3 out of 4 holes where they would be pressed in. If these are missing, the spring plate (second picture outlined in green) won’t be able to actually ground...

Two tracks in one weekend! Fastest street car at the new SoW CW which was cool…. Until a radical showed up. Name isn’t on the list as I timed on my catalyst. Big Willow is sketchy as hell, but a lot of fun. I did an intro day 2 years ago and haven’t been back since. SoW CW long layout: 1.22.19...

your coolant rose 10 degrees from a 2 gear pull? That’s wild. I’d love to see that log, because I’ve had koyo aux rads for 2 years and they didn’t do anything.

All the heavy lifting for IAT cooling is done by the manifold. Even if it does heat soak, what the actual engine sees is still virtually not impacted. you can see in this pull, pre manifold temps are ~300F. At the end of the multi gear pull (roughly 70-160mph), it’s -400F. IATs, however, only...

I find it so weird that they’d recommend an oil restrictor on a journal bearing turbo…

He has an instagram and FB page for the build, too. Cool guy. https://www.instagram.com/mysupraadventures/? https://www.facebook.com/mysupraadventures?mibextid=wwXIfr

Yeah, this is very similar to that video I posted a few months back about @kern417 having this issue. The following videos are just snippets from his post with the 1st one showing a proper working waste gate vs what was wrong with his. The photo shows it looks like the waste gate shaft was...

Have you looked at doing nickel plating instead? Powder coat turns to ass when you’re braking as hard as you should on track.

Idk why people give Rod so much credit. Maybe on the older 6 speeds and early zf8’s but I’ve never had any luck with his trans tune. He ghosted me the moment I told him about the issues with the tune. manual shifting was ass. There was a huge delay especially vs xHP and you can see it in the...

It was at Laguna Seca, TC 1 step off. I did a 1:38 there with EBC blues, and a 1:37 with the carbotech xp20’s with those old brakes.

That pad for the 374mm rotor I showed for comparison to the g80 pad is an EBC blue. I would literally go through a front set in a full track day. Decent bite for the first 5 minutes of a 20 min session before falling off. only plus was that I could source them at FCP Euro and replace them for free.

it’s a matter of having a different feeling not necessarily a performance gain; however, if the feeling inspires more confidence, then obviously it’s worth it. I don’t believe the coding adjusts any ABS intervention. Honestly I don’t see a reason to delete with a kit unless if you plan on...

1) there’s some brake coding that some have done to give it a more “natural” feeling. Personally I’ve never done it since I like the brake feeling I my setup (z4 might have different programming), but it essentially deactivates some coding in the DSC (disables brake pressure pre fill, brake fade...

Nope, good eye. Just a quick google search for a photo to illustrate the access point.