Blocked Rear Oil Feed Caused Turbo Failure

[Swiper the Fox]

For those people that are interested...a blockage in rear oil feed line caused the turbo failure in "twoogle". This is a common fault and we are currently producing a braided upgrade kit to rectify this problem occuring again.

A GT-RS upgrade is the way we are going and we will be able to compare 2530 vs GT-RS dyno graphs. This has been a hotly debated topic in the past and due to the fact no other changes are being made to the car will be a realistic comparison. Will post up dyno results when available.

Paul and Stacey

DiRTgarage

[Sydneykid]

Ouch, bad luck. What was the cause of the blockage?

cheers

PS; great a real life 2530 versus GTRS comparo.

[Abo Bob]

That sux. Does that mean there were floaties in the oil? Where were they coming from I wonder.

[GTRgeoff]

Bugger!! No other damage I hope.

BTW can you also do a real life GT-SS comparo while you are at it

jk

[Mik]

Bugger!! No other damage I hope.

BTW can you also do a real life GT-SS comparo while you are at it

jk

<{POST_SNAPBACK}>

No way! 16 hrs to put the GTSS on and then another 16 hrs to pull them off is just way too much effort

[fatz]

No way! 16 hrs to put the GTSS on and then another 16 hrs to pull them off is just way too much effort

<{POST_SNAPBACK}>

you just need practic

is a 4 hour job each way when you do it a few times

and i dont even know what im gdoing

[Mik]

you just need practic

is a 4 hour job each way when you do it a few times

and i dont even know what im gdoing

<{POST_SNAPBACK}>

I don't need practise...I have seen R&R done in about 5 hours...and that was by a bludger

[Tommyk]

you do when you are an alcoholic like Pete

[Swiper the Fox]

you just need practic

is a 4 hour job each way when you do it a few times

and i dont even know what im gdoing

<{POST_SNAPBACK}>

Dont worry Pete....someone is trying to be cheeky....but your right...i quote 8hrs too. Nissan quote 12hrs.

Id like to sit and watch the 5hr R&R and see every bolt replaced and no leaks or fu(k up's. But who am i to question the master mechanic Mik....The guy who doesn't need practice cause he's SEEN someone do it fast. Given enough beers ive SEEN ugly chicks become hot too!

Edited February 3, 2006 by DiRTgarage

[R31Nismoid]

hahahaha Pete

Paul - looking forward to the comparo indeed

[Mik]

Dont worry Pete....someone is trying to be cheeky....but your right...i quote 8hrs too. Nissan quote 12hrs.

Id like to sit and watch the 5hr R&R and see every bolt replaced and no leaks or fu(k up's. But who am i to question the master mechanic Mik....The guy who doesn't need practice cause he's SEEN someone do it fast. Given enough beers ive seen ugly chicks become hot too!

<{POST_SNAPBACK}>

Have you had a bit of practise Paul? Last I heard, it was 16 hours R&R for you. I would dig up the post, but I’m sure you have edited it, as all of your posts seem to be edited at some stage…

Yes, I have seen it done in 5 hours, by a guy at one of your favourite workshops. And there were no leaks and no ‘bolts’ left off…not that there are many to put back on. But yeah, it’s an 8 hours job allowing for a bit of contingency…definitely not 16 though!

Oh…and I’m no ‘master mechanic’ I didn’t spend 5 years busting my guts at uni to work on cars for a living, that’s for sure.

[Mik]

Oh...and I don't care how many beers you give me, ugly chicks are always ugly to me!

[Swiper the Fox]

I have a tomei stroker kit in my engine but i don't tell anyone cause i can't run the times or make the power. I also constantly go on about how heavy my car is as an excuse for my poor ET's

<{POST_SNAPBACK}>

really...well that is a revelation...I think that may be the only honest thing i think you have ever said.

[Mik]

really...well that is a revelation...I think that may be the only honest thing i think you have ever said.

<{POST_SNAPBACK}>

Wow!!! forums are so user friendly these days that even uneducated fools can use them to misquote people!!

[R31Nismoid]

Oh pipe down you two

take your shit to another section.

[Swiper the Fox]

Oh pipe down you two

take your shit to another section.

<{POST_SNAPBACK}>

OK no probs. Ash....back on topic ppl please

Edited February 3, 2006 by DiRTgarage

[pnblight]

For those people that are interested...a blockage in rear oil feed line caused the turbo failure in "twoogle". This is a common fault and we are currently producing a braided upgrade kit to rectify this problem occuring again.

  A GT-RS upgrade is the way we are going and we will be able to compare 2530 vs GT-RS dyno graphs. This has been a hotly debated topic in the past and due to the fact no other changes are being made to the car will be a realistic comparison. Will post up dyno results when available.

Paul and Stacey

DiRTgarage

<{POST_SNAPBACK}>

paul can i ask would do you think was the cause of the blockage?

and can i ask the type of oil you were running at the time (if you dont want to post it pm please as i'm very interested) as when i worked in Engine Reconditioning industry we sent a number of oil sample for testing and discovered that one praticular oil brand had caused numerous engine failures.

I wish you the best with the GTRS turbos as you have done amazing well with the 2530's , i look forward to see the results between the two as i so nearly bought a set but was put of by the bad rep the coped at one stage and the awesome results i had gain from the garret gt2560r.

pete

ps 9sec low mounts (THATS THE SHIT)

[Swiper the Fox]

paul can i ask would do you think was the cause of the blockage?

and can i ask the type of oil you were running at the time (if you dont want to post it pm please as i'm very interested) as when i worked in Engine Reconditioning industry we sent a number of oil sample for testing and discovered that one praticular oil brand had caused numerous engine failures.

I wish you the best with the GTRS turbos as you have done amazing well with the 2530's , i look forward to see the results between the two as i so nearly bought a set but was put of by the bad rep the coped at one stage and the awesome results i had gain from the garret gt2560r.

pete

ps 9sec low mounts (THATS THE SHIT)

<{POST_SNAPBACK}>

Hi Pete,

After speaking to a few guys today in the industry it seems the standard design of the oil feeds aids this problem...its the feed which has the loop in it. A 3mm orifice inside the tube and the bending of this tube that is done on an upgrade (yes i may have contributed in the failure) makes the feed smaller in diameter are two factors involved. Also the oil that sits in the bottom of the loop on shut down gets exposed to a lot of heat (small volume of oil and extreme heat). The question im asking myself is "is this why std rear turbo's always fail"? is the heat and oil starvation to blame as much as the ceramic wheel?.

For years i was a Mobil 1 user...but the last year or so i use Castrol Formula R, and change oil and filter before every meet. Which means the oil would see 500klm tops before changing.

A larger orificed plumbing system in braided line will replace all water and oil feeds and drains with the upgrade (earls will make a killing out of me). I will design and produce the kits for sale after testing to help prevent future failures in other vehicles....how many ppl rip of the turbo's on an upgrade without checking these lines...i know i am guilty of this myself so i can say it would be a lot.

Target is 9's on the low-mounts and with the full interior being installed back in the car, a 9 sec pass will be awesome.

[Mik]

Hi Pete,

  After speaking to a few guys today in the industry it seems the standard design of the oil feeds aids this problem...its the feed which has the loop in it. A 3mm orifice inside the tube and the bending of this tube that is done on an upgrade (yes i may have contributed in the failure) makes the feed smaller in diameter are two factors involved. Also the oil that sits in the bottom of the loop on shut down gets exposed to a lot of heat (small volume of oil and extreme heat). The question im asking myself is "is this why std rear turbo's always fail"? is the heat and oil starvation to blame as much as the ceramic wheel?.

  For years i was a Mobil 1 user...but the last year or so i use Castrol Formula R, and change oil and filter before every meet. Which means the oil would see 500klm tops before changing.

  A larger orificed plumbing system in braided line will replace all water and oil feeds and drains with the upgrade (earls will make a killing out of me). I will design and produce the kits for sale after testing to help prevent future failures in other vehicles....how many ppl rip of the turbo's on an upgrade without checking these lines...i know i am guilty of this myself so i can say it would be a lot.

  Target is 9's on the low-mounts and with the full interior being installed back in the car, a 9 sec pass will be awesome.

<{POST_SNAPBACK}>

Bel Garage have been using braided oil feeds on GTR's for years...it also makes R&R of turbos much easier...and yiu need all the help you can get...

Incidently, I checked my factory lines when I had them off and they were spottless.

[GTRgeoff]

Interesting to note that about the stock lines Paul.

It might help to know it cost me about $400 in braided and speedflow fittings with converting the 25t to tt. The fittings tend to be the killer but it was about $10 for straights from my local hose place (HIS Hose Somerton in Melb)