1971 BMW 1600 Project

[ak-]

In Burritos We Trust.

[phreshkid]

Meanwhile, today in the warehouse:






I utilized a few zipties to get the gauge where I want it. I'll start making a decent enclosure that mounts where the gauge currently is. Maybe next week.








The car is definitely running lean, but I hope to take care of that next week. Some time during the engine bay work, I must have wiggled the blue alternator wire loose. I ran the car for a little while, but promptly killed the battery. I scratched my head for a while trying to figure out what it was. So I left and grabbed some food (a burrito), and when I came back, the first thing I checked turned out to be the issue. Burritos really do work.






So I hooked up a trickle charger to the batter under the rear seat.
Side note: My rear seat's horse hair is disintegrating. I need to do something about this.








And this charger is pretty cool. It showed me that when I began the charge, the battery was 11% charged. It knew the battery was an AGM battery, which I was also amazed by. In the photo, the battery was up to 39% charged.









I also swapped the rear bumper back to the one without the three main holes in the center section. But I forgot to snap a photo of this.



That's all I have. I think I'm going to get off the internet now.

[phreshkid]

"Any suggestions as to gauge location? "

in a pod to the left of the inst cluster on that little shelf.

My 1600 has the hazard switch there, else that's probably where I'd put it.

I'm not sure I want the 3-gauge pod to the right of the cluster either.

I have an idea on how to create a neat little bracket and mount it to the right of the center console, in the corner where the dash meets the console.

Let's see if I can pull it off.

[mlytle]

"Any suggestions as to gauge location? "

in a pod to the left of the inst cluster on that little shelf.

[phreshkid]

Post-O2, pre-catalyst bung for accurate AFR on the dyno?

Something like that.

The o2 bung closest to the primaries was welded in by the owner of "Heritage Motorsports" when he was either drunk or sleeping because it is facing directly into the passenger footwell. That does me no good at all.

Seriously, that guy has been such a pain to deal with. He means well and does some good work on cars from what I've seen, but all my dealings with him have been a nightmare. Would not recommend dealing with him.

Wideband o2 most likely for tuning of the carb. I don't know why all the old dudes whith hot rods in my town don't have those... They idle around blowing a cloud of unburnt fuel out the tailpipe. Like literally smells like gas following around...

Bingo. See below for more photos. And you are very correct. ak- pointed out earlier today that 10.0 AFR readings at Idle is a bit rich. But I'll explain more later in this post.

Ryan, you did not tell me that you were planning on having a seat-operation.

But it's okay, because turbo.

Come sit on me big boi. And yes, turbo soon.














Ok, for yesterday's post:

I guess I'll just explain these photos tomorrow.


Too tired.




The photo above represents two O2 sensor bungs. The first was done by Jason Rose of Heritage Motorsports as a request before he shipped me the headers. I shouldn't have asked, as it was pointless, considering the bung position. Absolutely useless.

The second bung was welded in by RJ over at Ireland Engineering right before I picked up the headers. His welds are better, as he is a better fabricator overall. This is the bung I will use for the AFR gauge.


The photo above is essentially damage done by IE's fabricator. When I sent over the headers, I knew they had to send it over to their exhaust fab guy to R&D and create another unit based off mine. What I wasn't expecting is physical crimping remnants of all four primaries and all secondary tubes of the exhaust. The exhaust tubes are actually crimped to the point where it altered the diameters of the tubes. I'm not happy about this. Crimping marks everywhere.

Not cool, IE. Not cool.

And this is just a photo of the engine bay. Dirty, and nothing special.














Now for today:





Headers are in. Oh yeah, I sprayed them with hi-temp paint just to clean them up because IE's fabricator wrote a bunch of words all over it during the R&D. Likely reference points.





Threw a simple air cleaner on the carb. This will due for now. I want to try something different a bit later, or not at all. Because turbo.



Another view. Dirty bay. But I wired up the electric choke. Still don't know if it works, but the wire is getting 12v signal so that's nice.




And I quickly hooked up the O2 sensor, and the wiring outside of the car to see if the AFR gauge works. Looks like it does.

The gauge is reading 9.6-10.0 at idle. This is a bit rich, but I haven't tuned the carb yet. I barely got it on and whatever jets are currently in it, were from the previous owner in New York. It was tuned for his car. Tomorrow I will hardwire it all in and probably make a cool bracket to run the gauge somewhere. Any suggestions as to gauge location? I was thinking in the center console or coming off the side of the center console. I'll look into this more tomorrow.






So I took the car out for a spin. Even running rich and a slight, slight stumble at the very beginning of acceleration, the car runs really good. It's faster, and more responsive than the single sidedraft carb setup.

Oh and I had to do a bunch of tinkering to make the carb linkage work, but it now works and the pedal is right where I want it.





I should tune the carb and then replace the carpet.
But then I'll probably want to paint it.




But still. This car is super ridiculously fun.

[freeride53]

Ryan, you did not tell me that you were planning on having a seat-operation.

But it's okay, because turbo.

[DER E30]

Post-O2, pre-catalyst bung for accurate AFR on the dyno?

Wideband o2 most likely for tuning of the carb. I don't know why all the old dudes whith hot rods in my town don't have those... They idle around blowing a cloud of unburnt fuel out the tailpipe. Like literally smells like gas following around...

[ak-]

Whooooooooooooooooooo!

[markseven]

Post-O2, pre-catalyst bung for accurate AFR on the dyno?

[phreshkid]

I guess I'll just explain these photos tomorrow.


Too tired.

[phreshkid]

It has somehow eluded me so far that you are actually a 2002 rear bench seat centaur.

Life has not been very easy for me since the rear bench seat infusion. I am neither fashionable nor comfortable to sit on.

[LJ851]

It has somehow eluded me so far that you are actually a 2002 rear bench seat centaur.

[phreshkid]

Can I get a FWD so I can watch this unfold?

FWD? What is this? I'm most likely going to say yes.

Keep it coming.

Coming for ya boi:




I spent most of the morning doing real life work stuff, then moved on to doing 02 stuff.

I know today was the day I replace those damn rear pop-out window gaskets. Last night I did a solid hour of research but didn't learn too much. I think I was psyching myself into thinking it was a pretty tedious and time consuming project. I was wrong.

I managed to pop out both windows in about 5 minutes, remove the cotter pins from the metal frame and the glass, replace both gaskets in their correct orientation (it's kind of hard to mess this up if you have just a little bit of common sense), and re-cotter pin the frame to the glass.

And in they went. The hardest part was working alone, as I didn't have an extra set of hands to help today and the nearest guy was over 30 feet away. He was too far. My laziness reached a new today.

Anyways, here are a few photos for your enjoyment.

Passenger side window removed and B-pillar cleaned up a bit:



Window out and metal frame removed. In this step, I did some cleaning, and added the correct rubber pieces to replaced the old, plasticized rubber seals:



After the install. All in all, each side probably took about 25 minutes. Less if you have a set of helping hands.






I did the same thing to the driver's side with no issues.



Then it was time to pay attention to the new induction system.

Here is a better shot of the cleaned up parts:



I realized that I need to get the correct fitting for the manifold, so the vacuum hose coming from the brake booster can connect, so off to the hardware store I went.

Then I threw it onto the head but didn't bolt it down...mostly because I wanted to see what it will look like:



I liked the look of the single side draft carb, but this system will be more beneficial to me in the coming weeks.

I intend on running the stock air filter system (the big, round, flying saucer type that sits on the original single or dual barrel carb). It will need to be modified, but I have figured it out and it will look good once completed. I prefer it over the current aftermarket offerings.


Still missing a few pieces before I can fire her back up. Things like throttle linkage between the carb and firewall, the exhaust headers, and the modified air filter housing.



I think I'll change out the carpet as well. I've gone this far, might as well go a bit farther. I have a brand new set in a box somewhere. I think I'll do that next week.



Done for the day, so in the spirit of Christmas, I had a burrito.

Happy New Years.

[LJ851]

Keep it coming.

[Farbin Kaiber]

Can I get a FWD so I can watch this unfold?