legacycentral bbs

alright 2 things.
first of all what are the signs of a blown turbo? i've read all about the signs of oil, how it goes into the exhaust and the intake and burning it in many ways and leaking... but heres the deal i'm not burning any oil, the intake is fairly dry and i never see any black or blue smoke out of the tailpipe

but i hear this horrible screaming, nails on chalkboard type of sound coming from my engine bay as of yesterday. it increases with boost/throttle. its so loud to the point where when i hit about 10 psi it makes me cringe and i have to let off the throttle cuz it hurts my head! so my guess is a blown turbo, oddly enough boost builds just as fast as before and the car doesnt feel any slower, theres no metal on metal sound to indicate alot of shaft play where the blades are scraping the housing or anything like that either.


my second question is can anyone point me to a good TD-04 install thread? i've been searching and searching for weeks and can't find anything that satisfies me. i basically need to know how people have hooked up the turbo inlet of the newer straight inlet TD-04's to our system which is meant for the 90 degree inlet, can i just use a silicone 90 degree short hose with a joiner? and what about mounting brackets, do they line up or will i have to modify?

any other suggestions/things to check would be great

sorry if these questions are repeated, i know how annoying that is but i searched to the best of my abilities and didn't find what i was looking for

thanks
-Alex

Td04 is a direct Replacment as far as fitment goes, coolant lines and oil lines work, THERE ARE MANY threads with good info on this and you are on the right track, all you have to do is make a 90* silocone elbow and fit a TMIC for it.

great thanks

anyone have any insight on my screaming turbo problem? what would cause this all of a sudden? any remedies?

If in case your turbo is getting chewed up, you will be sending plenty of metal particals into your oil. The major problem with this is that the oil cooler (if you have it, aka '91 or retrofitted) witll collect these particals, and you'll never get them out of it. A friend of mine has tried everything humanly possible to get them out, but in the end it is not possible. A new one must be in order.

hmm that is a scary thought, i dont see any metal particles in the oil yet.
no burning oil or oil level going down either so the seals must all be ok.
i'd love to take my turbo apart once i get a new one just to see what happened, cuz i dont get it...

the td04 install is easy, just be prepared to snap one or two of the bolts/nuts, the ones i broke were after the engine cooled down, i took it for a good run to get it hot and the first three i did came off no problem!

thanks to everyone who's replied so far

while we're on the topic of the TD-04's
i'm planning on getting and A/F gauge and EGT gauge, some big injectors and a piggyback to control them. but i wont be able to afford it until tax season so whats the max boost i can run off the stock injectors? i've heard 10 psi, 12 psi and 14 psi.

and does anyone know the diameter of the turbo's inlet? just so i can already have the 90 degree hose that will join it to the stock intake when the turbo gets here.

thanks alot

-Alex

i think it's a 2" id silicone elbow i used for turbo to y pipe piece

i actually meant the turbo inlet coming from the air filter not the outlet to y pipe/intercooler.

the turbo will be the newer style wrx turbo with the straight inlet, so to make it fit to the stock intake it has to be a 90 degree inlet like the stock turbo pointing up. i'm going to get a silicone 90 degree elbow to clamp on to the turbo's cold side inlet and then get a joiner to join to the black elbow that all the pcv hoses go into.
I just need the diameter of the turbo's inlet so that i can order the silicone 90 before the turbo gets here.

thanks
-Alex

alex, i bought this part from lordco auto parts, thing is i don't have the part number but it was a reducing rad hose with a really tight 90 section. the best thing for you to do is take the td04 into the parts store and see if you can find it. it does not have to be silicone. then i went to crappy tire and got a muffler pipe that was reducing to fit my stock intake elbow, i will post some pics for you hopefully tonite. i still need to do my very detailed write up on td04 an 06 ic install, but i got kids and this write up is going to take several hours to do.

the td04 swap is very easy but you will need all the proper wrenches and sockets and angle extensions and try not to crack any bolts or studs. when are u planning on starting it?

the only reason i was really asking for the inlet size was so i could have whatever hose i'm going to use before the turbo gets here, i like having everything i will need before i need it so there are few or no setbacks.

i'll probably be starting it in the next few days i have not yet gotten a TD-04 but theres a few people checking on shipping prices as we speak so it wont be long. i'm also still trying to get another car for the time it takes me to do the swap.

as for tools i'm a mechanic (well experienced apprentice) so i will be doing all my work at my shop with access to pretty much any tools, torches, etc... Its not my first time doing this kind of engine work either and i'm extremely familliar with my car.

is there any kind of priming procedure when the new turbo's in? i know alot of manufacturers recommend to disconnect the fuel pump and crank the engine over for 15 seconds 3 times or so to get oil and coolant flowing through the turbo. is this ok or is there a better way to do it?


thanks alot guys
-Alex

i dont think it's necessary to disconnect your fuel pump, if im not mistaken your wastegate is open at idle anyways so it's not spinning to fast. i spun the propeller while putting drops of oil in the oil inlet on the turbo and then hooked up the line and started it up. on my first start up i heard a pop though, i guess it was a backfire and i didnt have my vacuum line on my #4 intake runner connected either. i wish i could tell you the exact size but it's a bitch to get my intake back together. i must be on here somewhere

alex- prime the turbo just like you said above. it certainly can't hurt. You might call deadbolt turbos for the size of the inlet. I bet they have it memorized. They even recommend priming the turbo like you had in mind.

WOOHOOOO i'm so stoked the TD-04 is finally in! my turbo must have been waaaaay messed
power comes on much earlier, alot more low end torque so driving out of power mode is much funner cuz the power is there at the lower rpms it likes to keep the tranny in.
power also comes on alot stronger gives me a good kick in the back that wasnt so strong with the stocker
the power band is bigger feels like it goes all the way to redline in first and second almost to redline in third but in fourth it somewhat starts to drop off at like 5000 or 6000. psi's seem to hold steady at the 12psi i have it at the whole time.

so in conclusion i'm really happy
install was somewhat tricky as i did the whole thing in the parking lot at work cuz i didnt want to be pushing my car in and out the few chances i had to work on it.

it took so long to complete cuz the 2" and 2.25" hoses i had ordered took way too long to get here.
the oil return hose was a bitch to get back on the turbo and i didnt have fun re routing the pcv lines. the outlet was also alot harder to get a hose on than i though it seems the IAC valve is somewhat in the way but i was able to wiggle around it.
the intercooler deffinitely fits better so that makes me happy

the turbo inlet on the cold side is 2.25" and the outlet is 2" to clear a few things up.

if anyone has questions on the install i'd be glad to answer them.

thanks for all the help u guys i probably couldnt have done it without you

-Alex

oh yea 2 more things

where can i get a hose that has a really tight bend in it? the 2.25" hose i ordered from silicone intake systems fit but even after cutting it a bit shorter the bend is too long and it touches the manifold and is a little bit squished which must be restricting intake air and robbing a few horses

and the final question...
i have a water/meth injection kit installed and i'm just thinking the nozzle i have is mean for a 200-240 hp engine from what i've calculated so its more than adequate. so if at 12 psi the stock injectors start getting maxed out if i run with the meth injection 50/50 its like having a 5th injector so could i run 15 psi do ya think?


thanks again
-Alex