 Subaru EJ25 progress thread - 2020 Modifications, Turbo, Engine Cleanup, Interior Upgrades |
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| Andyrew |
 Mar 2 2020, 09:46 AM
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#181
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Spooling.... Please wait  Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California 
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QUOTE(malaga_red75 @ Mar 1 2020, 06:43 PM)  QUOTE(Andyrew @ Mar 1 2020, 05:43 PM) Paint looks nice *Cough* (IMG:style_emoticons/default/tongue.gif) Seriously this'll be a fun project to watch!!! Cant wait to see it! Your clearance issue is with the wastegate actuator, BOV is another part. You might need to go external wastegate. Intercooler? Thanks, Andrew! yes, the paint is still holding up very nicely for almost 10 years! In case everyone hasn't figured it out, Andrew painted my car (IMG:style_emoticons/default/smile.gif) And thanks for clarifying - my turbo knowledge is still limited. yes, it is the wastegate actuator that is hitting the firewall. My plan is to go with no intercooler. I've read the info on outfront's website, and with this setup, as long as I stay ~7psi boost, it isn't needed. What do you think? You can get away with it. You'll need to log IAT's to make sure and you'll have to run lower timing. Also anything you can do for heat management will help. A small air to air wont help much as you dont have any flow. A small air to water will but it'll add weight and complexity to the system. I run a BIG air to water and my IAT's are Low low low. |
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| malaga_red75 |
Apr 11 2020, 09:49 AM
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#182
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'74 2.5L N/A Subie Group: Members Posts: 454 Joined: 5-March 06 From: Menlo Park, CA Member No.: 5,674 Region Association: None |
So, finally got some time to post some updates.
1. Got the car up on jack stands and got the engine/tranny out 2. started to clean up the engine so I can replace the water pump 3. I started to clean up the engine bay because I was lazy when I did this conversion 8 yrs ago. 4. made some renderings on how I want the interior to look after this. Two issues I came across 1. I talked with the guys at Outfront, and they basically said that I could not turbo my motor because of the high compression compared to a turbo motor. My motor is at 10:1, and he said a turbo motor needs to be around 8:1 - unless I run race gas or E85 - or reduce the compression. Any thoughts on this? 2. I looked inside the cylinder with a scope (kinda wish I didn't) and I found some oil inside the cylinder. See photo below, this is taken looking in through the spark plug hole. Is this concerning? The engine always ran great and no smoke. Photos: Back on jack stands... (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-5674-1586620148.1.jpg) Dirty motor and Clean Motor: (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-5674-1586620148.2.jpg) (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-5674-1586620148.3.jpg) Oil in the Cylinder: (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-5674-1586620148.4.jpg) Dash Render: (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-5674-1586620148.5.png) |
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| Andyrew |
Apr 11 2020, 03:46 PM
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#183
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Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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Love the render and the progress!! Keep it goin!
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| malaga_red75 |
Apr 11 2020, 04:39 PM
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#184
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'74 2.5L N/A Subie Group: Members Posts: 454 Joined: 5-March 06 From: Menlo Park, CA Member No.: 5,674 Region Association: None |
QUOTE(Andyrew @ Apr 11 2020, 02:46 PM) Love the render and the progress!! Keep it goin! Thanks, Andy. Any thoughts on the compression issue with the turbo? Or the Oil in the cylinder? |
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| Andyrew |
Apr 11 2020, 05:30 PM
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#185
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Spooling.... Please wait Group: Members Posts: 13,377 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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QUOTE(malaga_red75 @ Apr 11 2020, 03:39 PM) QUOTE(Andyrew @ Apr 11 2020, 02:46 PM) Love the render and the progress!! Keep it goin! Thanks, Andy. Any thoughts on the compression issue with the turbo? Or the Oil in the cylinder? Low compression turbo motors are old school. High compression is the new school. It just means a hell of a lot of timing pull. But what it does is give you LOW end power and fast boost response. You might have to drop your boost on the higher rpms but the sacrifice should be OK. You can always go with meth injection to help but be careful.... I would just say either tune for E85 and enjoy the extra 50-75hp or have a low/high boost setting and throw a couple gallons of e85 whenever you go high boost. Shoot for E20/25. Not enough to require a retune but it's about 100 octane and dirt cheap. As far as the oil, with it being a flat motor I really don't know... I would think it would be a bad PCV or something that's letting crankcase oil get in there but the piston doesn't have excess carbon build up... Id ask the Subaru guys... But Id run it till it pops... |
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| malaga_red75 |
May 4 2020, 09:28 PM
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#186
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'74 2.5L N/A Subie Group: Members Posts: 454 Joined: 5-March 06 From: Menlo Park, CA Member No.: 5,674 Region Association: None |
Got some more to update:
1. started to clean transmission. Just trying to get a layer of grime off while its out. 2. Figured out why I was having a coolant leak. There is a small rubber seal between the pump and engine housing - it must have dislodged when I replaced it several years ago. New seal ordered. 3. Replaced front rotors. Waiting on black caliper paint. Will paint calipers, replace pads, replace front brake lines with SS braided (rears already are SS) and then reinstall. 4. Got new bilstein strut inserts installed. I have a question here... The old boge strut inserts had a pair of washers at the bottom to center it up (see photos). They didn't seem to fit the shape of the bottom of the bilsteins, so I did NOT reinstall them. The bilsteins now sit flush against the bottom of the strut housing. Is this correct? Let me know what you think. Next on the ToDo List: 1. Finish front brakes 2. Start/Finish rear brakes. 3. Re-assemble engine once I have all the new seals (I got some other misc rubber gaskets to replace as well) 4. Start work on interior. Photos to follow... |
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