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wvumtnbkr
wvumtnbkr UltimaDork
7/28/24 6:55 a.m.
cdchris12 said:

In reply to wvumtnbkr :

Nah, The ECU can't drive the same signal that an ignitor would put out, no matter what I change in the ECU's settings. I already tried changing the resistor on the tach itself, to no avail. There's a part of me that wonders if I even have the right damn wire (despite the color and position matching exactly what the diagram said it should be)

A pull up resistor circuit is used exactly because the ecu signal isn't "strong enough".  I had to use one when I was using a gm ecu in my mazda.

cdchris12
cdchris12 New Reader
7/29/24 2:08 a.m.

In reply to wvumtnbkr :

I tore into the tach signal coming from the ECU, and you're right; I needed a pullup resistor to make the tach work. That said, a pullup resistor would not solve my A/C issue, as I'd need to similarly modify the A/C computer to accept that different type of signal.

I'll have the tach adpater in hand tomorrow morning, so I'll be in a good spot to test things out. I'm SUPER hopeful this makes the A/C work, because it's been hot af here!

cdchris12
cdchris12 New Reader
7/30/24 12:48 a.m.

Well, the tach adapter was an absolute bust. I didn't even hook up the signal wires, just spliced into +12V and GND, and the damn thing started smoking like it was gonna catch fire! The parts store was easy to deal with, and they will have me a replacement in hand tomorrow morning.

I did a fair bit more work today:

- I figured out the boost controller issue; it was hooked to GND, with the solenoid expecting a high signal from the ECU. This was backwards, so I swapped GND for +12V switched, and the EBCS now works when tested.

- I raised the front of the car another 10mm, as I'm tired of scrubbing every time I hit a bump. I may have to look into rolling the fenders if I still need more room, as there can't be much more thread left on these coilovers.

- I replaced the E36 M3ty splices on the passenger side speaker, so it works reliably now.

- I found a pretty real oil leak coming from the valve covers on the driver's side. I guess the valve cover bolts must've loosened up with some heat cycles, so I torqued them all back to hand tight.

- I found another oil leak coming from the oil cooler lines at the block, so I tightened them as best I could. It's tight quarters in there, so I may have to do some magic to get access to those.

- I've noticed a very real ticking noise coming from the number 5 cylinder's intake side, with a stumble at idle. I'm scared it could potentially be a bent valve. I'll have to do a compression test at some point to rule that out. It wouldn't be the end of the world if I had to remove the head, but it would be annoying, for sure.

cdchris12
cdchris12 New Reader
7/30/24 12:35 p.m.

Maybe I should've paid more attention to that oscilliscope, as I wasn't getting any sort of waveform at the tachometer. I was using a spare injector output to drive the tach, which don't work. I switched to a regular aux out, and I now have a 12v waveform now.

cdchris12
cdchris12 New Reader
8/1/24 11:28 a.m.

A few updates on the car from yesterday's work:

- The valve tick appears to be a cam follower with lash at the maximum end of OEM spec

- The weird rattling noise I've been hearing is not rod knock, but actually the hydraulic throwout bearing rattling against the clutch teeth. Apparently, my measurements were quite a bit off there. I'll get my transmission guy to do those adjustments when he installs the new gears in the transmission in September.

- A compression test shows ~120 PSI (cold) on all cylinders except 5, which is about 112 PSI. This is most probably explained by the extra lash in that cylinder's valves.

- The tach now works, as does the A/C request system. It's so nice to drive around with the A/C on on these hot days :)

- There is a pretty nasty oil leak that I need to find and fix. I _think_ the oil filter relocation block is leaking, but that has the oil pressure sensor preventing it from spinning any farther. I will probably extend that part of the harness to put the oil pressure sensor on the remote side of the oil filter relocation bits the next time I'm in there working on things. I may also have to remove the oil cooler lines from the block adapter if I have to spin that adapter much more than half a turn or so. That sounds easy, but there's almost no room to turn those damn AN fittings when things are in the car.

wvumtnbkr
wvumtnbkr UltimaDork
8/1/24 11:31 a.m.

Doesn't the center part of the filter adapter turn independently of the outside?

cdchris12
cdchris12 New Reader
8/1/24 2:31 p.m.

In reply to wvumtnbkr :

That's right, it does. iirc, it bottoms out on either the adapter or the block at some point though. I can see a leak coming from the bottom of the filter relocation block, so I'm assuming it just needs to be a bit tighter against the block, which the oil pressure sensor is preventing from happening currently.

cdchris12
cdchris12 New Reader
10/3/24 11:20 a.m.

Well, it's been a couple of months, and some fun things have happened :)

Firstly, I got the car tuned on September 9th down in South Dakota. That was a LONG day, with a 5 hour drive each way, plus 11 hours of work and tuning on the dyno. I'm happy to report that the car made 496 HP and 436 FtLbs on 91 pump gas. Once we dialed it in a bit and put some ethanol in the tank, she made 608 HP and 529 FtLbs on about E70. I had planned to tune it on straight ethanol (E98), but we're hitting 90% DC on the 1500cc injectors at this power level, with ignition cut set at 95% DC.

 

I was featured on the tuning shop's Instagram account here, too: https://www.instagram.com/reel/C_vdKEexUKX/

 

I'm pretty happy with the driveability at this power level, but the boost kicks in a bit late for my taste. I'm thinking I'll probably look at upgrading the rather old turbo next year. I'm thinking a G40-900 would probably be a good fit for my power goals, and it'll flow a LOT better than the T04z I've got now. I'd probably also go to 2200cc injectors at the same time as well. That should let me easily and safely get to the ~800 hp mark at the wheels. 

 

The transmission is currently out sitting on a bench, waiting on parts from SpeedTek Racing that should've been included but weren't. I've been emailing and calling them every day for three weeks, and they keep giving me bullE36 M3 promises on when they will ship said parts. Currently they're saying they'll ship them this coming Monday, but I have serious doubts. I love how the good weather is wasting away while they jerk me around waiting on these parts.

 

I've also got quite the audio setup ready to go into the car, along with a small mountain of other various parts. Those will be mostly winter projects, so expect to see more information on those as the Winter progresses.

cdchris12
cdchris12 New Reader
10/3/24 5:46 p.m.

Hmmm... Not sure why the link to that Instagram post doesn't work, but here's the reel in question: https://photos.app.goo.gl/Qwqdj3T4QJnY8HjJ9

R32Jordie
R32Jordie New Reader
10/4/24 7:26 a.m.

I hope Speedtek comes through for you. I really wanted to pull the trigger on their GTS-R style manifold but I havnt heard good things about their customer service. 

shame because the manifolds are beautiful. https://speedtekautoracing.com/products/nissan-skyline-stainless-steel-low-mount-exhaust-manifold-r31-r32-r33-r34-gtst

 

Nice work on the 3D printed bits too. You're making me wish I went with the ECUMaster Black instead of the classic. The classic doesn't support E throttle and I never thought about cruise control as an application for that.

 

-Jordie

cdchris12
cdchris12 New Reader
10/4/24 10:05 a.m.

In reply to R32Jordie :

Honestly, I don't have much choice but to keep hounding them at this point. Nobody else makes the 1 -> 2 hub I am missing, unfortunately. Just my $2, but I'd be real wary ordering from them. They said originally that my trans parts would take 2-3 weeks to be shipped, but the reality was more like 2-3 months. Even after they finally arrived, they were missing parts (which I even paid extra for, no less). Nobody answers the phone there anymore either. When I first made my purchase, they were really friendly and answered a bunch of questions before they even made the sale. Once they had my money, it's just like their customer service evaporated.

About the E-throttle... If I'm being honest, there are days where I miss the old cable setup. Trying to get this thing started at first was quite the gong show, mostly because I didn't understand how all the various bits in Link's software played together to calculate final throttle blade opening percentage. Even my tuner had a bit of difficulty getting the idle settings correct with the e-throttle. Having digital cruise is pretty neat, but it doesn't like the car bucking at all; it'll quickly get into a loop where the bucking will increase exponentially. On the highway though, it's a lifesaver.

cdchris12
cdchris12 New Reader
10/7/24 2:31 p.m.

SpeedTek said they shipped the missing parts today (finally). They didn't give me a tracking number tho, so... Who knows if and/or when I'll receive them.

This weekend, I replaced the dipstick (again) and replaced the rear door speakers. I tried to replace the front door speakers, but the new speakers' baskets are MUCH too large to fit the hole in the door. I'm gonna chat with my parts guy tomorrow and see what else he can get me that will fit the bill for my front speakers.

I finally broke out the traces I got from a fellow Marine a while back for the trunk floorboards. Judging by the looks of things, those are originally fairly contoured, so I'm going to have to design and print some supports to make those work as intended. I'll probably go sometime this week and buy some plywood to make these out of. My hope is to mount the amp on the right side panel, figure out how to make the middle panel work, and figure out how to create a left panel that fits around the Optima yellowtop in the trunk.

I'm making slow progress on planning out the fusebox relocation in the glove box as well. It's kind of a pain figuring out where all these different lines go, and which I can safely remove (if any). I've also got a stack of actual OFC wire waiting to go in and replace the garbage CCA wire I didn't even realize I was using. I've got a buddy coming over on Thursday evening to help me pull the old CCA extension wires out, tuck the OEM wiring in the engine bay, and pull new OFC extension wires into the cabin.

cdchris12
cdchris12 New Reader
10/13/24 11:59 p.m.

I _finally_ have a tracking number from SpeedTek... That was generated about 30 minutes ago. It has now been an entire month, to the day, that I've been trying to get these parts shipped. They're quite mad that I filed a chargeback against them, but they really didn't leave me much choice.

cdchris12
cdchris12 New Reader
10/20/24 12:57 a.m.

Well, I received the new transmission parts on Thursday afternoon, and the transmission shop had my transmission build finished on Friday afternoon. They only charged me $750 for the labor, which honestly isn't so bad, imo.

I got it put back in late on Friday night, only to discover that my clutch master cylinder is on its last legs. I must've been bleeding that thing for an hour, and it just kept spewing out bubbles. Eventually, there was _just_ enough play in the clutch pedal to let me barely shift into gear, so I took it for a drive. The new transmission has straight cut gears for first and second, so it's a touch louder than stock, but that comes with the territory for a strong gear set.

That's the good news. The bad news is that the car will _barely_ run now that it's cooler outside. I shipped off some log files to my tuner to see if he can help a bit, but I doubt I'll get a reply until Monday at the earliest.

In other news, I hand built a new floorboard for my trunk and mounted my new stereo amplifier on it today. Hopefully, I'll get the 12 inch subwoofer installed in the back deck tomorrow. That's a pretty big job, so it's anyone's guess if I'll be able to finish that up entirely tomorrow.

cdchris12
cdchris12 New Reader
10/22/24 12:51 a.m.

I figured out why the car was running like E36 M3. It looks like one of the boost hose pop offs pulled the signal return wire just far enough back into the connector that the IAT was no longer connected. The car thought the intake charge was always at -40C, leading to it running outrageously rich all the time. This caused it to foul the plugs, too. I fixed the connector and replaced the plugs, and she's happy as can be now.

 

In other news, the subwoofer install is now complete. I need to go swing by the local audio shop tomorrow to have them fine tune it for me, but the pieces are wired and in the car now. The install isn't perfect, sure, but it's in a place that people aren't regularly looking anyway, so I'm fine with it.

cdchris12
cdchris12 New Reader
10/24/24 12:33 a.m.

Today I ended up pulling the subwoofer out, trimming the deck a bit more to fit correctly, and applying sound deadening to the back deck and back firewall behind the back seat. The subwoofer looks and sounds SO much better now that everything is sealed up, I've gotta say.

 

In other news, I also received the new clutch master cylinder in the mail today. I wanted to get that installed today, but bleeding the clutch is a two person job, and my buddies were all otherwise engaged. That's the plan for tomorrow evening, though. 

cdchris12
cdchris12 New Reader
10/25/24 4:41 p.m.

I got the new clutch master cylinder installed yesterday, but adjusting it took a bit of doing. I've adjusted it probably 6 times now, and the engagement point is finally about where I want it to be. I have to say, this new master cylinder takes a bit more force to push, so it's not quite stock. At least it isn't broken and letting bubbles in constantly, lol.

I chanced into a new subwoofer yesterday, which should work better for my setup. I'll be putting that in either this evening or tomorrow.

The plan for this weekend is to put the car up on the lift, grab the thermal camera, and try to figure out which v-band clamp is leaking. I keep smelling exhaust in the cabin and I can hear the characteristic "PHHT, PHHT, PHHT" associated with an exhaust leak, so it's leaking _somewhere_. I'm sure that has something to do with the E36 M3ty idle :/ 

Assuming I can chase down and/or fix the exhaust leak quickly, I might also try to tackle at least a bit of the rewiring project. Just getting the wires running through the fender replaced would only leave the actual wiring inside the cabin for me to do. That's no small task on its own, as I'll need to plan out what signals go where and which circuits need to connect where, but at least I'll finally be able to put the fender liners back in and maybe see about getting the local shop to roll my fenders so the fronts will clear.

cdchris12
cdchris12 New Reader
11/12/24 11:58 a.m.

It's been a couple weeks, so I suppose it's time for another update.

Firstly, I finally bit the bullet and went in on some targeted upgrades as Winter sets in, so she'll be down for a few months. Since Link is having their annual Black Friday sale, I opted to pick up a CAN-Lambda adapter and a CAN gauge from them. This should let me replace my current Innovate ECF-1 entirely; as I already have the digital signal from the ethanol content sensor wired into the ECU (for ethanol content percentage and fuel temp),  The CAN-Lambda will provide real Lambda values, and I have a spare pressure sensor I can use to measure fuel pressure.

I also have a front bash bar on the way to me that _should_ sit behind the front bumper. I'm excited to _finally_ be able to put the front bumper back on once that bash bar is installed.

I discovered recently that there is a rather significant amount of oil making it into the intake at high boost WOT pulls, which is so plentiful that it's getting sprayed _through_ the intake filter when the throttle valve snaps shut because I'm not running a BOV. To combat this, I'm going to delete the PCV valve and plumb both sides of the valve covers into my current catch can, with the catch can getting vacuum pre-turbo, and an inline check valve to prevent any boost spikes due to the lack of a BOV from making it into the catch can. While I have those valve covers off, I may also look into getting them powdercoated blue.

 

With all that talk about parts ordering out of the way, let's talk about the actual work I've done over the past couple of weeks. I finally decided to tackle the glovebox wiring project in earnest over the past couple of weeks. Progress was slow, as I took my time and made detailed notes for my own benefit. The first thing I noticed when I started looking into things was that the tires had been scrubbing the wiring harness inside the fender... That's lovely. I fixed that insulation up, and re-ran the wires using the factory mounts for a much more secure setup.

 

I also replaced the original fusebox connectors with Metra-Pak and Deutsche connectors, which helped massively with that rat's nest of wires under the hood

 

The actual glovebox was the next hurdle. First, I pulled new copper wires to replace the aluminum wiring I had used previously. Then, I labeled and prepared new connectors for the two individual relays that were not part of the underhood fuse panel directly. After that, all I had to do was put it all together.

 

 

I wish I could say everything worked the first try, but there were some setbacks. The ABS system was in an error state that took me WAY too long to figure out. Apparently, you can't totally remove the TRC (Traction Control) relays from the system, as they are part of the ABS system's self test (even though the TRC motor and actuators are both long since deleted). On my way to discovering that fun tidbit, though, I managed to start a small fire... Don't worry, I put it out quickly and nothing was really damaged, other than a slight melting of the connector.

 

 

So, as things sit right now, I just need to extend the wires coming from the glove box so that I can move all the Deutsch connectors to the free space behind the left side of the glove box. That's going to be a lot of cutting and soldering wires, but it shouldn't take me _too_ long to get that done. I'd imagine a few hours, at most. Once that's all done, I _should_ be able to mount the glovebox and put the "door" on said glovebox. I've gotta say, I'm REALLY looking forward to the day this damn wiring job is totally done and dusted.

I also have an appointment on Friday to have the fenders rolled so my new Toyo R888R's will clear in the front. Hopefully, I'll have some time before Friday to get this wiring project done, but only time will tell.

cdchris12
cdchris12 New Reader
12/13/24 11:38 a.m.

Well, it's been a month, and things are happening now that Winter has set in here in ND.

First off, the wiring project seems to never end. I finally got all the various bits with the glove box fuse and relay panel done to a point where they sit in the spot they are supposed to, but they don't quite clear enough for the glove box door to go back on. I think I'll need to pull it all out and possibly rethink how I am going to tackle that mess of wires behind the glove box. 

 

After getting that part of the project to a point where I felt it was good enough for now, I decided to tackle the wiring inside the fender as well. That seemed to go well, but this transition from factory connectors to Deutsch connectors somehow caused a _new_ ABS fault to crop up. I have no idea what the issue is, as everything is wired correctly inside the glove box, so it must be something in the fender. I haven't dug into it yet, but that's on the list.

Now that Winter is here, I once again have a pile of parts waiting for a home inside my car. First up, the new bash bar that I fitted up last night. I ordered it from Turn5 Fabrication, and it was originally made to fit a JZX100, not a JZX90. All I had to do to make it work was drill a hole for the locating pin coming off the frame rail, and the bolt holes lined right up.

 

Here's the list of things I want to do to the car before Winter is over:

  • Rip out the Innovate ECF-1 gauge, along with its wideband o2 sensor, its fuel pressure sensor, and its wiring.
  • Remove the currently installed Defi boost gauge, its sensor, and wiring
  • Figure out how to make the glove box relocation project fit well enough to let the glove box lid close
  • Completely redo the vacuum hose routing on the engine with a new boost/vacuum reference block
  • Replace the current TO4Z turbo with a Pulsar 6262G (G35-900) turbo
  • Change out the turbo mounting bolts for studs (I'm planning to use wheel studs from a mid 90's Honda for that)
  • Eliminate the PCV system and run both valve cover breathers directly to the current catch can
  • Possibly re-engineer the power junction under the hood to be a bit more protected
  • Install a jump start point under the hood and a permanent trickle charger connection
  • Build a third trunk floor section so that the battery posts and connections will no longer be exposed
  • 3d print some inserts which will hold the trunk floor section pieces down
  • Re-engineer the cruise control stalk mount so that it fits neatly within the lower steering column cover (this is going to require some 3d scans and a fair bit of CAD work)
  • Install the new CAN-Lambda module
  • Install the new fuel pressure sensor
  • Rewire the existing ethanol content sensor
  • Wire in a pressure switch for the power steering system
  • Add sound deadening and heat insulation underneath the hood
  • Design and 3d print a ring to go under the sub in the rear to help with the carpet non-linearity
  • Install the CanBus I/O Expander
  • Install the Link OLED Can Gauge
  • Install new budget angle adapters
  • Wire in new turbo speed sensor
  • Weld together new intake plumbing route
  • Install new windshield washer fluid reservoir
  • Powdercoat the bash bar, valve covers, and turbine cold side housing

 

I also have a few stretch goals, if there's any Winter left after all those other things:

  • Upgrade the front brakes to IS300 brakes
  • Design and wire in new relay module bypass circuitry for door lock / unlock

 

It's gonna be a long brutal winter here, so stay tuned for all the progress :)

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