1997 m3 sedan with s54 swap

[3staxontheradio]

very general s54 question but is anyone on stock or mild cams pushing the injector duty cycle towards the max? We are all on e10 these days and stoich is about 14.1 vs 14.7.

[Slideways]

very general s54 question but is anyone on stock or mild cams pushing the injector duty cycle towards the max? We are all on e10 these days and stoich is about 14.1 vs 14.7.

280/272 stock injector seems to be fine

288/280 starts to get maxed out

[ZiMMie]

Ordering a karbonius box tomorrow - Getting everything else sorted out


I'm doing a Kassel map sensor setup
Mss54hp comes from nextelbuddy next week
I have pre facelift throttle body boots and am getting some worm clamps because I plan to have the box off a lot

Air filters: ECS has the OEM filter for $229 (ouch) so I guess I'm doing that.
The rest of the odds and ends are easy enough to track down.

The dipstick in an S54 swap E36: anything different there with an E46 as far as bending and moving it around?

Maybe this will help you.

11 years ago, I fabricated my own bracket and air rail. If you want to keep the MAP sensor in its original (OE) location, it’s not difficult.

You can scan the MAP sensor to get the exact mounting points (I just measured it when I did mine), then have the mounting plate CNC-machined or make it by hand.

Open up the air rail to the diameter of the MAP sensor and weld the bracket directly onto the rail. It took me less than an hour. Just be careful not to place it too close to the PCV valve position it a bit farther toward the firewall. Otherwise, you’ll have to route the PCV hose over the MAP sensor.

For the dipstick bracket, I used a simple two-piece steel bracket bent at 90 degrees and bolted together, then secured it using the strut tower bolt. Very straightforward. Unfortunately, this is the only photo I have.

As for injectors, just get new ones. I have a post somewhere that lists all the flow rates for the ones that fit.

[3staxontheradio]

CSL box shipped early and I get it tomorrow instead of 4 weeks from now. That's a fun surprise. Ordering through Stephen Bean at Touge Factory has been great. I think I have everything now except the air shutoff valve so I guess I'll modifying the stock one. Anyone have a pic of what it looks like before/after? I want to get this thing installed ASAP but we are short on extra daily drivers right now and I need it up and running for a few school pickups a week. I was planning to do the conversion over winter break along with wire harness cleanup but maybe I'll have to do a quicker weekend install sooner than that.

Also my workstation decided to shit itself this week so that has really screwed up progress on scanning anything. I THINK I have it fixed, if not I have to start throwing parts at it starting with a motherboard.

[heinzboehmer]

Anyone have a pic of what it looks like before/after?

Nothing fancy, just some flexible vacuum tubing.

[3staxontheradio]

Karbonius intake came on friday and I got a good scan of it before doing any install

[Bry5on]

What are you using to scan? You mentioned earlier that you’d taken a lot of photos?

And it looks like they designed a clip for the battery cable! Nice, would love something simpler than my p-clamp setup.

[3staxontheradio]

I I use a photogrammetry setup with an older Nikon dslr (d800e) that has changed a little over the years but the main important points are:

Flash lightning so you can handhold at like f/11 and have every image be 100 percent tack sharp

A really good scale reference

Using reality capture to process and having plenty of workstation power and time for processing.

I use a cross polarized ring flash right now (so the light from the flash is polarized and then the lens has a polarizer on it, they are indexed so specular reflections from the ring flash are cut out). Scale is April tags on a scale bar that my processing software picks up automatically.

Photogrammetry is a much much more cumbersome and labor intensive route but you can get extremely high levels of detail that aren't really doable with a dedicated scanner. Really your only limitation for scan quality becomes how close your lens can focus. You could switch to a macro lens and resolve incredible small sub millimeter details if that ever mattered.


Promo video from my business showing an LS block scan:

[3staxontheradio]

Lots going on over here between work issues and other car stuff but I just bought a cheap 330i dedicated track car. I got this so I don't try to do race car stuff to the E36 and I can keep that a nice streetcar and not let my need to make things lighter, louder, and more feedback, ruin it.

Topaz blue 2002 330i plus the clear coar has some sparkles added which my kids enjoy 🦄

150k miles, 275s on 18x10s with over fenders, 225whp on a dynojet, I think it's around 2800 lb flat with no driver, mix and match suspension right now with konis in the front and dgrs in the rear, os giken diff, willlwood 4 wheel kit running m3 rotors and brake ducting, some mix of aftermarket track oriented bushings I haven't had a chance to dig into yet, a weld in roll bar (a few cheesey details with that I need to address), and safety equipment. My old 330i sedan is also topaz blue so I have a perfect donor vehicle for parts already. The exhaust on this car is interesting. Some form of cheap catless headers into the stock E46 center section and then a small resonator is added before the diff and then it's just two straight pipes at the rear. It's shockingly quiet at low speed and low load doesn't really stand out. When you get on the gas it gets very loud. I'm a little surprised by how quiet it is the rest of the time though. I don't think it's actually any louder than my E36 s54 with stromung muffler that throttle tip in or idle and I can drive it through the neighborhood without irritating everybody pretty well. When you punch the gas it's very rowdy sounding, Even just on a blip for a downshift which is pretty fun. I'm not planning to make this car super nice or really try to make it faster. I want to look at the safety equipment install, fix some minor, and update all the maintenance for track season next year and just keep this as a seat time vehicle. Previous owner was a pediatrician and not a mechanic or fabricator. Plus side is that he had the money to keep it reasonably maintained but there's some stuff that needs work (you can see some diy for hitch install support bracing in there 😬).



The car also came with a splitter he didn't run and I've got a 9lr wing if I ever want to start adding some aero.


My next to-do list on the E36 is to fix the massive exhaust leaks. There are a handful of mig welds that are pretty sloppy with huge holes. I don't think I can possibly get these to be clean, I'm not going to back purge, and I'm sure they weren't back purged the first time when they were MIG welded. I'm just going to grind them down as best I can and then Tig in filler until they're airtight. Just a Band-Aid this until I have time to build the full exhaust for the car.

I still have a few more things I'm waiting on for the CSL box install and then I'll do that too.