Project LOLTRAC, or ST185 BS - a USDM Alltrac restoration

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Re: Project LOLTRAC, or ST185 BS - a USDM Alltrac restoratio

Postby Junctrac » Tue Jul 09, 2019 1:16 am

EvilStig wrote:Any pressure I put into the intake is lost unless I plug this hose up here. This recirculates back into the intake after the MAF but before the turbo. If I plug that hose, I can build pressure with the boost leak tester. I'm not sure what this is supposed to be, but I'm relatively sure it isn't supposed to be dumping boost out of it.


Sounds like crankcase vent. The pressure is bypassing piston rings and coming out that tube but shouldn't be much flow, especially when running, if it seems like a lot is coming out i would do a compression test if you haven't already. If there's any valve overlap with where the engine rotation ended up there could be pressure going out the exhaust too.
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Re: Project LOLTRAC, or ST185 BS - a USDM Alltrac restoratio

Postby Junctrac » Tue Jul 09, 2019 9:41 pm

Sorry I lied, the hose closer to the front of engine connecting to valve cover is crankcase vent. The other one goes to idle up as you said and IAC valve under TB and somewhere else too i think. So if the IAC is still open at all then that's where the pressure was going. Im not sure when if ever the IAC is supposed to be 100% closed. The manuals have lots of testing procedures for the EGR valve etc. and probably the IAC, maybe that's related to your idle issue? I may have missed it but i didn't see any details about your idle issue, does it never seem to change it as it warms up?
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Re: Project LOLTRAC, or ST185 BS - a USDM Alltrac restoratio

Postby EvilStig » Tue Aug 13, 2019 6:23 pm

A Major Milestone Reached! The hard part is done, and she runs and drives!

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You'll have to forgive just a couple recycled photos in this post, since I'm just ecstatic with how well this came out and I wanted to show it off. This one's fresh though. Drove her to work this week.

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Close-up of the beautiful carbon fiber hood. I really just don't have the heart to paint over it to make it match.

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Latest good picture of the engine bay. I think the best description I can come up with for it is "a nightmare difficulty 3D Factorio game." Last weekend I took it out for a drive, and the power steering idle up vacuum switch backed out again. I had to get it towed back to the house, where I safety-wired it back in before driving it to the shop, along with a new A/C compressor, pump, and vacuum switch. My local Saint installed it all for me and had it ready for pickup the same day. I spent the remainder of the week making fine adjustments to the dual-port BoV and EBC. It will ramp to fuel cut at 15PSI quickly if I turn it up above 40% gain. I have performance mode set to 14 PSI with an alarm at 13.5 so I know when I've pegged it. The butt dyno approves. Daily mode I've got at a more conservative 10.5 PSI

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Interior is looking and feeling like home. I love how it came out, and I especially love the new pedals. They're helping immensely with my heel-toe training.

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Slightly older photo of the interior showing off the nice leather seats from a better angle.

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plastic blank plate over where the ashtray used to be holds the turbo timer and EBC interface. The shifter boot panel features a commemorative placard dedicating the car to Behruz Shahrivar, without whom this restomod never would have been.

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And that's where we're at now... and I'm enjoying driving it around while saving up the dosh to get it painted, which will be the next step. I found a local guy who runs a shop called Apex Autobody in San Jose, and he's quoted me ~$6k for all the body repair work and a full repaint including original bumper and hood.
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Project LOLTRAC: Back to the drawing board...

Postby EvilStig » Sat Sep 07, 2019 7:05 pm

further issues abound and I've burned out an o2 sensor and the wideband AFR. Ended up throwing a code again, and that one cylinder is still struggling with compression. I'm calling around for quotes on a full upper/lower rebuild, or to find a replacement motor to swap in.

I also have my sights on a full brake and suspension overhaul with Feal 441+ and whiteline parts, hypergram wheels, R1R tires, and Hawk HPS.... and my trigger finger is getting itchy.
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Re: Project LOLTRAC, or ST185 BS - a USDM Alltrac restoratio

Postby JDMR-S » Tue Sep 24, 2019 7:12 pm

I came across this thread while searching for information on Behruz. I'm honestly stunned that this car is still on the road and would love to see it in its current state one of these days.

Obviously I don't know the entire history of the car, but from what I do know, you gave an abridged version of it. I recall one of the previous owners having blown an engine due to a technician at Steven's Creek Toyota not properly fastening something vital (it's been a long time, can't recall exactly). The owner had to argue back and forth with them a bit before they provided a crate block that they half-assed the installation of, to say the least. That was where Behruz came in, and while I may have handed him a tool or two, held a hose or two, etc., he was truly the brains of the operation and without him the car would never have been able to get off the jackstands it sat on for nearly as long as either of us had known the car's owner at that point.

Seriously, good job on keeping this car running. All the more impressive that you've made it look good while doing it.
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