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> Suby-engined rustoration, 21-Sep-2024 update: more racing-related carnage!
strawman
post Nov 18 2012, 12:14 AM
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Got a chance to correctly set up the PCV system, using two oil catch cans -- one between the crankcase vent and the PCV valve, and another between the crankcase vent and the intake tract (before the throttle body). I also ran a hose from the head vents through a filter to the intake tract. I had a local welding shop TIG two nipples to the underside of the aluminum intake tract piping. For the most part, I was able to route the hoses underneath the intercooler and piping, but you can see a few of them in the video below.

To clean out the oil slick caused by my initial PCV system error, I ran half a bottle of Seafoam through the vacuum ports on the intake. Smoke galore, but along with new spark plugs the engine now purrs cleanly. (IMG:style_emoticons/default/aktion035.gif) Now I just need to figure out the cold engine start hunting/coughing; could be the larger than stock injectors I'm running, which will take a while for the ECU to "learn." I need to modulate the throttle for the first 20 seconds or so until it smooths out.

I was also able to finalize burping air from the cooling system. The radiator fan I'm using -- out of a mid-90s Lincoln Mark VII -- really moves a lot of air, so I'm hoping my cooling system will suffice. And the Bosch intercooler pump -- out of a mid-90s BMW 5-series (E34 chassis) heater booster system -- helps to noticeably lower intake temps, at least at idle. The alloy pipe coming out of the turbo is warm/hot to the touch, but the intercooler outlet is ice cold. I'm hoping to drive it in the cul-de-sac tomorrow or the next few days, if it will ever stop raining!

Here's a another video:


https://www.youtube.com/watch?v=RgzxVT6A7Tk
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charliew
post Nov 18 2012, 06:25 AM
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Pvc is pretty complicated on a boosted suby. The vaccum in the intake manifold when it's na then the boost and a slight vaccum in front of the turbo reverses the pvc operation. Sometimes just longer hoses will help smooth out the high vaccum instances where the oil gets in the intake. We installed a mann provent ( it was used on the turbo, I think calloway, corvettes at one time) on my son's suby but it's a diesel part so the orings went to crap and needed to be switched but it puts the oil back in the pan to keep from lowering the oil level. On a low mileage driven car the catch cans are probably a easier and cheaper solution. I was afraid that the catchcans being a closed system sorta that the hoses would need to be extra long. We did a lot of plumbing with some manifolding to try to get a good system but now my son is considering going just to catchcans. I can't decide if this application is in the race car or street car application on the pvc deal.

Hope you come up with a better, simpler working solution than ours as the mann provent is not cheap.
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JStroud
post Nov 18 2012, 09:01 AM
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That's got to be a great feeling to have it running after so much work.
I'm sure you can't wait for that first drive (IMG:style_emoticons/default/driving.gif)

Glad you got it going, can't wait to see it (IMG:style_emoticons/default/beer.gif)

Jeff
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Zaney
post Nov 19 2012, 06:07 PM
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Don't worry about unraveling the wiring loom few times. I think I did it 6 times (IMG:style_emoticons/default/hissyfit.gif)

Great job Geoff!
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strawman
post Dec 31 2012, 07:27 PM
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Drove it for the first time a few minutes ago, and my wife captured it on her iPhone. She's almost as excited as I was!


https://www.youtube.com/watch?v=bg_NjmUrk-o


Spent the day clearancing the fender flares, as I had a little rub under compression. Then I buttoned up the suspension (finally installed zip-ties that tie the rear upper hats to the Eibach coilovers) and torqued everything down. Finally, I installed the tach converter that Larry (904SVO) corrected for me (IMG:style_emoticons/default/pray.gif) -- so I now have a working tach that is driven by the Subaru ECU.

The car definitely has a BIG turbo punch, although I didn't wanna piss off my neighbors too much. I still have a long way to go to have it truly roadworthy, but it feels GREAT to finally get it move under its own power!!!
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a914622
post Dec 31 2012, 07:42 PM
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Lucky page 13 as we go into 2013! congrads.

It sounds like the wife is happier! (IMG:style_emoticons/default/driving-girl.gif)
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904svo
post Dec 31 2012, 08:56 PM
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Glad that the tach works now. Did you wire the ODB2 in? check and see if you have any DTC codes I can help you with. Just wait till you get 18lbs of boost
and really go like HELL!!!!!!!!
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scotty b
post Dec 31 2012, 09:02 PM
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rust free you say ?
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(IMG:style_emoticons/default/beerchug.gif) That cul-de-sac looks like it is begging for some rubber rings (IMG:style_emoticons/default/happy11.gif)
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JRust
post Dec 31 2012, 09:06 PM
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QUOTE(strawman @ Dec 31 2012, 05:27 PM) *

Drove it for the first time a few minutes ago, and my wife captured it on her iPhone. She's almost as excited as I was!

The car definitely has a BIG turbo punch, although I didn't wanna piss off my neighbors too much. I still have a long way to go to have it truly roadworthy, but it feels GREAT to finally get it move under its own power!!!

(IMG:style_emoticons/default/piratenanner.gif) Congrats Geoff! Absolutely killer (IMG:style_emoticons/default/evilgrin.gif)
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Mike Bellis
post Dec 31 2012, 11:31 PM
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Awesome!!!

(IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/piratenanner.gif)
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wingnut86
post Dec 31 2012, 11:50 PM
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AWESOMENESS!!
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KELTY360
post Jan 1 2013, 01:45 AM
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Sounds badass!

HAPPY NEW YEAR!
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76-914
post Jan 1 2013, 06:54 AM
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Let's see, I've read your build thread how many times and for som,ew reason thought it was already running. (IMG:style_emoticons/default/headbang.gif) Mucho congratrulations. (IMG:style_emoticons/default/first.gif)
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d914
post Jan 1 2013, 09:15 AM
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Awesome and congratulations,,, I though you were making me look really bad until I heard ur wife say 4 years into it!!

I'm working on five so I see light at the end of the tunnel..... Sounds sweet..

Greg
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ruby914
post Jan 1 2013, 10:16 AM
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(IMG:style_emoticons/default/smile.gif) Congratulations!
That is a great way to start the year. (IMG:style_emoticons/default/driving.gif)
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charliew
post Jan 1 2013, 11:51 AM
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It sounds good, thats got to be a great feeling. I'm sure it gives you new energy for a couple more years of up grades. Just think how much closer to finished you are though.
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EdwardBlume
post Jan 1 2013, 12:03 PM
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(IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/smilie_pokal.gif) (IMG:style_emoticons/default/aktion035.gif)

All the trick build and time spent pales in comparison to how you EVER got you wife that excited and supportive of a habit that clogs up the garage, burns your vacation time, and spends any cash, which will eventaully strand you around town, and cost as much as a foofy 911.

Congrats again though! AWESOME!
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d914
post Jan 1 2013, 02:46 PM
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I'll have to second that on the wife's reaction..... That was great to hear!
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Chris H.
post Jan 1 2013, 07:06 PM
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Sounds AWESOME!!!! Good for you man, your hard work is paying off!
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biosurfer1
post Jan 1 2013, 09:33 PM
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Finally! WCR here you come!! (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/cheer.gif)
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