el_freddo Posted August 9, 2020 Share Posted August 9, 2020 I’m finally putting together my EJ20G for my AUDM RS liberty wagon. (Those rims are dead now) It’s not going to be an all out attack vehicle, more so closer to stock just to enjoy the drive. My question, mainly asked of @GeneralDisorder, is this. Would this 12mm oil pump do a good job to avoid oil starvation at some point in its life? https://www.ebay.com.au/itm/For-91-11-Subaru-2-0L-2-2L-2-5L-SOHC-High-Performance-Oil-Pump-EJ20T-EJ25T-EJ22T/400782310472?hash=item5d507cbc48:g:17UAAOSwxH1ULDJz If not, what would you recommend? I remember someone saying somewhere that the EJ22 oil pump isn’t great (first I’ve heard), but I can’t find the reference to this. This build will have wrx heads with the hydraulic buckets over valve setup. I don’t need solids, shim over or shim under as I’m not for all out high rev gear changes everyday, maybe occasionally. Cheers Bennie 1 Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 9, 2020 Share Posted August 9, 2020 Negative. Those cheap black painted pumps (and and Orbit branded "ACL" pumps) have serious problems with the relief valves sticking open and producing zero pressure on startup. Use an 11mm oil pump for an STI. You don't need a 12mm. Those are for twin turbo applications and engines with AVCS, etc. GD 1 Quote Link to comment Share on other sites More sharing options...
el_freddo Posted August 9, 2020 Author Share Posted August 9, 2020 Thanks mate. Now to hunt for a good pump at a decent price! Cheers Bennie Quote Link to comment Share on other sites More sharing options...
el_freddo Posted August 9, 2020 Author Share Posted August 9, 2020 Would this be the correct part number for the STi oil pump? 15010AA360 Cheers Bennie Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 9, 2020 Share Posted August 9, 2020 Yep that's the one. We use that pump on all our engine builds. GD 1 1 Quote Link to comment Share on other sites More sharing options...
1197sts Posted August 13, 2020 Share Posted August 13, 2020 GD, do you recommend the 11mm pump for N/A builds as well? 1 Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 13, 2020 Share Posted August 13, 2020 33 minutes ago, 1197sts said: GD, do you recommend the 11mm pump for N/A builds as well? It's overkill. Run the 10mm. GD Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.