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big 16g td05..run on stock?

13K views 36 replies 9 participants last post by  wrxecm 
#1 ·
okai recently my turbo just stopped working. i dont know why it stopped working but it did. i took it to a subaru specialist and he said i need a new turbo. its weird tho ### my car is very shaky and idles rough. so i was thinking of buying a big16g td05 for my 03 wrx. it said this turbo can run on stock injectors and everything. so thats what i need to know. is it true. can i run this turbo on my car without any more modifications. i alreadi have a catback exhaust, downpipe, up pipe, and headers. thanks
 
#2 ·
^ You probably can, but its going to run like a turd if not break something. Its always been recommended to upgrade injectors, fuel pump, and a tune/remap (some recommend fuel railings but ive done fine with stocks.) . Personally i dont know if the 04s have bigger injectors than the 02 - 03... but i highly doubt it. although most ive heard of have sent their stock injectors off to be modded. I just went straight aftermarket and trashed my stocks.
 
#3 ·
damn so im better off finding another stock wrx turbo. i have no money to buy injectors and stuff like that. theres stock turbos on ebay i just dont know if i should trust them. there used and there about 200. is it normal for my car to shake when i turn my wheel because of no turbo?
 
#9 ·
yeah thats what alot of people are telling me that its a mitsubishi turbo so there not so expensive. some guy is seeling is turbo that came off his 05 wrx for 350. had like 10k miles on it only. i think thats a pretty good deal. i still dont get it tho i dont know why my car is running so ruff.?
 
#20 ·
wrxecm said:
lol. well i think im going to go with the big 16g for now. they told me i can run it like that but on stock boost but im planning just to get the fuel pump and a turbo inlet hose.
i wanted to ask is the turbo inlet hose the intake?
Read this:
dumdum said:
Boost pressure and airflow(cfm's) are not the same thing.The stock TD04-13T @14.5 psi flows about 390cfm -while the TDO5-16G @14.5psi flows 510cfm.
Just because you're running "stock" boost, doesn't mean you can run a much larger turbo on a factory tune and not have any problems. More air without more fuel = lean = blown motor!

Anyway, the turbo inlet is the piece that goes between the intake and the turbo.
 
#21 ·
Hmm...dumb question. But, I thought most turbos inlets were the same size inches on the inlet side; unless you went pretty big. Obviously rotated would need a different inlet. But, I meant TD04, TD05, and TD06s. I thought their inlets were all pretty close? Please...feel free to correct me. I don't know.
 
#22 ·
The stock inlet is 7cm I believe. Some people go with larger intake diameters, larger turbo inlet pipes, and then get like 8cm turbo inlets. Even on a TD06, that's kinda overkill but whatever. The option is there.
 
#28 ·
Drive around is a relative thing. You can turn the car on and get it to run. It will be running rich and may not idle cleanly. However, it will run and shouldn't cause much damage if you drive it to the tune shop. If you, say, do some drag pulls with your new setup though (untuned), you'll quickly realize you have a slower car and one that likes to blow up.

Basically if you barely use the gas petal and NEVER use boost, you can limp the thing along even with bigger injectors in there.

I'm saying buy the stuff, make the appointment, put it on the weekend before, don't drive your car except LIMPING it to the shop.

The AP wouldn't help you much anyway btw since it likely doesn't have a map that covers your setup. Also, it might mislead you into thinking you have a "good enough" tune on there to use your right foot... which you won't. If you were putting something drastic on there, you might want a base map loaded on before you even try limping but you should be ok with the factory map for limping.
 
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