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Old 11-04-2022, 08:58 AM   #26
SubieEJ
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1300's won't fuel 490whp on pump gas? I figured it was my stock feed lines and single aem340.
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Old 11-07-2022, 07:49 AM   #27
SubieEJ
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Tested for boost leaks and found a big one right at the turbo inlet. I moved the clamp for better access to the wastegate a few days ago and obviously didn't tighten it enough but still no boost. Checked the boost controller and the solenoid has zero ohms of resistance and doesn't click with 12v applied to it. Ordered a new one so hopefully that's been the problem all along.

Last edited by SubieEJ; 11-07-2022 at 08:04 AM.
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Old 11-13-2022, 08:47 AM   #28
SubieEJ
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New boost controller is in, now I have boost again but the weather has turned. With any luck I'll get another day out before they salt the roads but that might be wishful thinking. I'm glad it won't be put away with issues before I update the fueling system and create more headaches.
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Old 11-13-2022, 08:47 AM   #29
SubieEJ
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***8230;. DPost
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Old 05-18-2024, 08:33 PM   #30
SubieEJ
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Bit of an update! Turns out that boost leak damaged the bearings in the turbo so it was spooling slow and making crap power after we retuned with the new boost controller. I ended up installing a new radium hanger with a walbro 450 and 8an feed 6an return lines. The car is now putting down 540whp and 470tq at ~30.5psi. 4200rpm it's at 20psi and full boost at 4600rpm and revving to 7500rpm. Still on 94oct Canadian pump gas. I'm MUCH happier now and I can finally enjoy this thing and the 500whp goal has been well surpassed.

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Old 05-20-2024, 10:55 AM   #31
Black90tsiawd
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I know you don't have access. But that thing is begging for some ethanol. You'd easily find another 75 whp/tq.
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Old 05-20-2024, 06:46 PM   #32
SubieEJ
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I'm moving in the next few months and I think there's pump E about 45min away. If not I'll probably get a barrel of it. I don't drive much so it won't be a pain but I really wanted to get the car running properly on pump before messing around. I'll probably need bigger injectors and another pump too. For now I'm happy
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Old 05-21-2024, 07:29 AM   #33
Black90tsiawd
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1700's at a minimum and maybe a 450-525 lph pump. But if you're going to do it maybe one of the radium drop in fuel pump hangers. I use one with twin aem 320's. You could at least reuse the pump you have with a second added in for some extra support.

You could probably make the power you are now with ethanol and less boost though.

Last edited by Black90tsiawd; 05-22-2024 at 07:34 AM.
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Old 05-21-2024, 09:10 AM   #34
SubieEJ
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I have a radium hanger and 450 pump in now with 8an feed 6an return lines, could add my 340 or another 450 easily.. All this was the plan when the car was initially built but with all the teething problems it's set things back. I really only had 1mo of the car running properly until now. After the move and locating E I'll go further with it. I want some stability first before I start messing with it again. I think if I want to go high hp I'd switch out from the g series, they seem to be a bit fragile when pushed hard but I wanted 500hp and good spool for a street car. Both goals have been met.
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Old 05-22-2024, 07:34 AM   #35
Black90tsiawd
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Both of you're goals could be met with less boost on ethanol. It would spool faster and be easier on the motor long term. Another 100 whp shouldn't really be pushing that turbo too far. It's rated in the low 80's lbs/min range.
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Old 05-22-2024, 11:51 AM   #36
SubieEJ
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For sure, it's just not easy to get at the moment. I'm not against it at all, just been a **** show getting to this point.
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