Is my turbo on it's way out!!!

[blackhole1]

whatz up nico, this is whatz going on. rebuilt my s14 sr bottom end is stock new bearings,rings, top end has new valve seals, valve guides, Bc springs retainers, HKS stg 2 265 intake exhaust cams, ER ras and so on.

Everything has been built to spec eversense the the start up the car was smoking, I know thats normal after the 1200 mile mark still smoking, I also changed the oil three times within the 1200 miles, the idle is always up and down some days good other days bad.

The shop I take my car to said that the compression test was good, no probs with a blown headgasket and that my car will probley run like this until I get 550cc injectors, n62 maf and a tune for my setup, thats fine I will start looking, so the other day i stated to think maybe there is blow by when the shop cut down the baffel plate to make the ras work so I decided to put an oil catch can when i removed the hotpipe there was silver oil residue in the turbo outlet and hot pipe just the first 15in.

I also think I failed to mention that during boost the car back fires, If i drive it normal it does not do it at all, I have taken the car for a spin after the catch can install but know it seems to be running alot more rich than usual is this a sign of a future bad turbo or blow by, I am really sorry I could not put this in smaller discription, but I have yet to really enjoy my swap, also in 1st and 2nd it seems to be sluggesh until it pics up boost, please help dont know if injectos and other upgrades will correct this or replace turbo.

Guys please go easy just a newbi and do not pretend to know everything, but I have learned alot in the past year 1/2 and still learning any help would be grate

[Justin35ll]

Are you running a stock turbo? If so you don't need 550 injectors, tune, or maf

[blackhole1]

yes Iam running a stock t28, the tuner shop told me it would be better to run the 550cc and maf and tune to give better performance with the cams I guess what he was trying to say is that the Ecu is searching for the right idle but the cams duration causes it to be off, causing it run a little rich idk.

[Sileighty_85]

Your computer is not tuned for those cams thats why your engine is sluggish. More than likely that smoke is Fuel.Get it tuned

Also get some Cam Gears to "Dial in" the Cams so you can get the most out of them.

Check shaft play on the turbo and oil in the intercooler

[blackhole1]

would getting cam gears cause me to lose the vtc? and would that be bad. thought of this when rebuilding the engine, I am going to get the tune, looking for 550cc or 555cc injectors and n62 maf. I would rather do this all at once other than paying the extra money for the reflash, so the oil residuein my hot pipe is normal blowby?then having the catch can should aleviate the problem.

[Sileighty_85]

would getting cam gears cause me to lose the vtc? and would that be bad. thought of this when rebuilding the engine, I am going to get the tune, looking for 550cc or 555cc injectors and n62 maf. I would rather do this all at once other than paying the extra money for the reflash, so the oil residuein my hot pipe is normal blowby?then having the catch can should aleviate the problem.

Umm yeah i beleive so.. I havet worked on an S14's VTC Systems yet.

But yeah if your gonna up the Boost, you will need the Inj and MAF but you should'nt be driving it until you get all of that installed and ready to Tune, otherwise running too rich will cause "Cylinder Wash" which will kill your rings.

But it usually takes awhile depending on how long you run too rich.

The oil... the S14 VC are usually pretty good at catching all the oil from blow by.How much oil?Does the oil look like it starts at the return line ot after the turbo?and check shaft play on the turbo,

[hks240sr20]

well i dont think you need the upgraded MAF, injectors or tune as the person above stated, if you have a stock turbo and your just trying to make the car run there is no need for the upgrades yet. How may pounds of boost are you trying to run? And what kind of fuel pump do you have? I bet that is most of your problem although i would take a close look at the turbo because that most likely has a couple of issues as well. Also I run HKS 272 cams and the stock ecu didnt have any problems running the until I put my power FC on it.

[blackhole1]

well I only broke the engine inwhat the machine shop told me, it's about 1500mi on it, but i will drive the wifes car for now, as the oil in the hot pipe it's residue you dont relly notice until you rub your fingures on the surface and it looks like lithieum grease kinda like a light grey color, but it is not through out the whole intercooler piping, hey would you know where I can send my ECU for tuning for under 500.00, just need options, thanks for all your help.

[blackhole1]

I have a walbro fuel fuel pump, and I swapped out the stock actuator for the HKS one it's set idk around 10psi thought about backing it down to see if it helps, the tuner shop checked for boost leaks, and did a compression test, but my thoughts could be that it runs rich is the pcv, and the iacv, was also concerned about the silicon hose ran to the turbo might be to small idk, these are just thoughts though. I will also change the coolant temp sensor knowing that will also cause the car to run rich too.

these are just a few things that i will check, threre so many things going on with this car it's frustrating, I want to get the car tuned, but want to make sure everything is the way it should be

[Sileighty_85]

well i dont think you need the upgraded MAF, injectors or tune as the person above stated, if you have a stock turbo and your just trying to make the car run there is no need for the upgrades yet. How may pounds of boost are you trying to run? And what kind of fuel pump do you have? I bet that is most of your problem although i would take a close look at the turbo because that most likely has a couple of issues as well. Also I run HKS 272 cams and the stock ecu didnt have any problems running the until I put my power FC on it.

well it depends on how much boost/power he plans on going for Alot of ppl going for around 300 usually go ahead and upgrade to the N62 just incase they run into any problems,

I know on my old set up at 10psi (R/T w/T28& stock electronics) I put down around 260whp and it heald fine for that, although i needed bigger injectors cuz i was maxing them out.

But if he plans to upgrade the turbo its already dont and dont have to worry. Plus the Stock MAF is Very resrictive

I'm sure you didnt have any problems with the 272's on stock ECU other than extream rough idle & horrible gas milage and loss of power.

For your ECU http://www.rs-enthalpy.com/ecu.htm
Modified by Sileighty_85 at 6:52 PM 1/25/2009

[240life]

Try adjusting your fuel psi...your fpr sounds like it is bad or possibly adjusted incorrectly... 265 cams are fine to run on a stock tune and you're running a stock turbo that your engine is designed for....I would install afuel psi gauge and make slight increments and see if it helps.
Modified by 240life at 10:10 AM 1/26/2009

[meangreens14]

yeah, definately check your turbin shaft for play as that may be a sign that the oil bearings are on the way out. you would see some oil in the ic piping from that, but as far as the particles in that residue...im honestly not too sure on that. i would recommend taking your piping out and giving it a good wash with parts cleaner and degreaser. either one will work, but it would be ultra clean if both were used. everyone else's suggestions are very good too. good luck man.

[240life]

A slight oil residue is normal...be concerned if you are seeing dark oil deposits. this really doesn't sound like a turbo issue to me. Oh and you need to stay away from the shop you are using... there is no need to upgrade injectors etc..on a basicly stock tune, they are trying to milk you for $$$$$$$$$$$$$$$$

[Sileighty_85]

A slight oil residue is normal...be concerned if you are seeing dark oil deposits. this really doesn't sound like a turbo issue to me. Oh and you need to stay away from the shop you are using... there is no need to upgrade injectors etc..on a basicly stock tune, they are trying to milk you for $$$$$$$$$$$$$$$$

Your Joking right? @16 Psi on a T28 your Inj are gonna be pretty much maxed out, not to mention hes upgraded his Cam's to a longer Duration and lift so he needs to accomodate for that, that like putting a 2871R on your car and only pushing 4psi.

Upgrade to your 550cc's and an N62 MAF get a tune and you'll be goldenThere is alwasy room for imporvement over the stock Tune so buy getting it tuned you can pull out a few more ponies, also getting the ECU set up for 93 octane will help seeing that the stock ECU is tune for Japans higher Ocatane levels.

[blackhole1]

the shop i take my car to is good, they know I want to get the car up to 350ish. My car has been in there shop off and on for some time with other issues they are really good about fixing it but the smoking problem I guess has stumped them when all the leak checks were done on the car, so suggesting for the upgrades were there last idea for the car.

[blackhole1]

I am going to take care of other little things on the car like coolant temp sensor, pcv, iacv, check hoses just to make sure it is not just faulty parts, and I am looking for the injectors and maf already, thanks for the link.

[240life]

Your Joking right? @16 Psi on a T28 your Inj are gonna be pretty much maxed out, not to mention hes upgraded his Cam's to a longer Duration and lift so he needs to accomodate for that, that like putting a 2871R on your car and only pushing 4psi.

Upgrade to your 550cc's and an N62 MAF get a tune and you'll be goldenThere is alwasy room for imporvement over the stock Tune so buy getting it tuned you can pull out a few more ponies, also getting the ECU set up for 93 octane will help seeing that the stock ECU is tune for Japans higher Ocatane levels.

At 16psi the stock s14 injectors and the maf is almost useless...if I new he was running that much boost (still says nowhere that he is, only mentions the HKS actuator at 10psi) I would have suggested the 550 injectors (minimum) with the N62 and a rom tune and stage 2 cams do require some tuning I must have missed that in the first post I could have sworn he was running stage 1 B/C cams which usually run fine on a stock tune
Modified by 240life at 10:06 AM 1/26/2009

[huggys13coupe]

Your computer is not tuned for those cams thats why your engine is sluggish. More than likely that smoke is Fuel.Get it tuned

Also get some Cam Gears to "Dial in" the Cams so you can get the most out of them.

Check shaft play on the turbo and oil in the intercooler

what this guy said