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funny noise turned out terribly


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Well last week my car was running really lean due to my ebcs so i replaced it it still wasent running good. Now my motor is blown and my turbo. So i am now building my engine fully forged internals, and adding a nice amr cxr500 turbo on it. Ill post a build sheet up later. Im hoping for a safe 400whp on pump.
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here is my current list of parts and mods to the car and this list will be growing:

hawk hps+ pads on front and rear

DBA 4000 slotted front and rear rotors

Magnaflow CBE

invidia catless dp

Greedy Up pipe

DW 850cc injectors

DW 300lph fuel pump

rallitek skid plate

Killer B oil pick up

CP pistons 100mm oversized 9:1 compression custom coated

Acl race bearings

tein s tech spring

AVO front mount

STi intake manifold

GS power division 272 cams

Gs power division billet springs and retainers

Ported b25 heads

AMR CXR 550 turbo

Open source tune

ARP head bolts

Custom tgv deletes

Grimmspeed ecbs

STi nitrite treated crank

2011 STi connecting rods

Perrin turbo inlet

perrin cold air intake

NGK one step colder spark plugs

GSC springs and retainer kit

Gates kevlar timing belt

GFB bov vent to atmosphere

ACT 6 puck

ACT streetlight fly wheel

Kartboy sts

polished and ported stock heads

bored cylinder walls

wrx pedal set

avo grill

STi boost gauge

New avcs system

Gfb manual boost controller

Group N motor mounts

and a lot of headaches

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the tear down

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs065.snc6/167555_10150093959428305_113984963304_6097696_6091692_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs765.ash1/165661_10150094105888305_113984963304_6099454_7390545_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs800.ash1/168999_10150094105918305_113984963304_6099455_7987200_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs041.snc6/167164_10150094105953305_113984963304_6099457_1291186_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs740.ash1/163207_10150094106003305_113984963304_6099459_3008762_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1391.snc4/164338_10150094361508305_113984963304_6102725_5891700_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs264.snc6/179213_10150094361548305_113984963304_6102726_1044212_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs043.snc6/167308_10150094361593305_113984963304_6102728_2459454_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs273.snc6/180169_10150094361638305_113984963304_6102729_6132584_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs077.snc6/168724_10150094361673305_113984963304_6102731_6342519_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs040.snc6/166999_10150094361693305_113984963304_6102732_8329578_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs062.snc6/167241_10150094361738305_113984963304_6102734_3059596_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs1362.snc4/163435_10150094361773305_113984963304_6102736_5715302_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs048.snc6/167880_10150094361808305_113984963304_6102737_2154564_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs080.snc6/169089_10150094361853305_113984963304_6102739_5370101_n.jpg

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs252.snc6/179996_10150094361958305_113984963304_6102743_1839154_n.jpg

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the parts

 

http://sphotos.ak.fbcdn.net/hphotos-ak-snc6/hs248.snc6/179675_1545228436264_1401600109_31277015_594704_n.jpg

http://sphotos.ak.fbcdn.net/hphotos-ak-snc4/hs254.snc4/40024_1357409260902_1401600109_30888130_3057668_n.jpg

http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs137.ash2/40183_1375214306017_1401600109_30937320_7085387_n.jpg

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So, what was the failure? I'm recovering from LASIK (yesterday) and can't stare closely at the pics, but I'm guessing ring lands? What was the failure of boost control? Too much boost? If so, I'd say a boost gauge should be on your list as well. IMO anytime you start modifying an engine, a boost gauge should be on the list, since you never know when you'll start having issues with boost creep, vacuum lines blowing off, boost controller failures, etc.

 

Good luck on the build. I'm actually kind of keeping my eyes on this for the sti engine that will be going in my 98 LGT.

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Any indicators - noise, performance issues, etc.?

 

BTW - If you haven't planned it already, don't forget your phenolic spacers, since you're replacing the resin intake with a metal one. Need to minimize the heat sink capacity of the STI intake.

- Pro amore Dei et patriam et populum -
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Red Manifold = STi manifold.

 

Doesn't it look sexier? :p

 

And it's a bit different so the flow may be better. At least that's something to hope for.

 

 

Actually, the plastic intake manifolds flow more and better. There are no casting marks on the inside to restrict flow. Topspeed seems to love them.

 

Good luck with your build and remember to take your time.

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i went with the sti intake manifold because im gonna port it out, and i honestly like the red. I do know that the stock plastic ones flow fine and dont retain heat as much as the red metal ones do, but i want a clean looking engine bay and something to go along with my crinkle red turbo and my red inlet hose.
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So how easy are these engines to work on? I may need to be rebuilding my bro's at some point/ swapping a built shortblock with his current heads.

 

Would probably end up doing a similar setup with the cxr500 and internals.

 

Working under the hood of a Subaru is very simple because there is a lot of room. Disassembly of the engine is just like any other, and splitting the case is no big deal. IIRC there are plates in the block that allow you to access the connecting rod bolts so you can separate the case without pulling pistons out of the bore.

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Working under the hood of a Subaru is very simple because there is a lot of room. Disassembly of the engine is just like any other, and splitting the case is no big deal. IIRC there are plates in the block that allow you to access the connecting rod bolts so you can separate the case without pulling pistons out of the bore.

 

 

Thanks! I saw a video of disassembly and it looks pretty easy.

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Well last week my car was running really lean due to my ebcs so i replaced it it still wasent running good. Now my motor is blown and my turbo.

 

Howd did the ebcs cause the car to run lean? Untuned? Was unmetered air entering the engine? If overboosting was overboost fuel cut disabled?

My '05 LGT

My '07 Supercharged Shelby

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Howd did the ebcs cause the car to run lean? Untuned? Was unmetered air entering the engine? If overboosting was overboost fuel cut disabled?

 

Good question - there has to something else going on. Too much boost, so too much airflow, and then not enough fuel flow capacity, maybe?

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