Please Help, Ideas And Suggestions. R33 Stock Turbos Blowing Up All The Time

[89CAL]

Yeah I think the best bet is to get it high flowed (steel wheels) and then you wont have to worry. Run stock boost no issue

Then when you want more power just get the supporting mods and wind the boost up. Cheaper than constantly buying replacement stock turbos

I know its not really solving the original problem. But still a good idea

[Nathan_works]

Hi Stao.....read my post. There are ways it could happen. Anything that causes that signal to be lower (where it is sourced from) than the turbo's outlet pressure will permit it to work too hard.

Maybe....but what happens when you have that is that the turbo spins up and gets hot, then the bearings gall and sieze and the sudden shock would be what shakes the turbine loose. But I wouldn't expect the shaft to spin nicely afterwards, and it sounds like yours still have been.

The rear wheel doesn't spin after they blow up, all 3 turbos the rear wheel has been f**ked and the front wheel still spins!! One of the turbos found some of the rear wheel in my exhaust (cat)

[Nathan_works]

Okay thanks for that input guys, if a steel wheel turbo is what's going to fix this problem looks like that's what I'm gonna do, I'm also going to check the oil flow but other then that it's got me stumped. So if anyone could recommend someone who does decent turbo rebuilds that would be greatly appreciated as is all of your input! Thanks

[hypergear]

Check out the latest results from our current 21U std R33 high flowed turbocharger on the last few pages. They are capable of doing factory alike response of 260rwkws+ on P98 and have done 320rwkws with E85. Cost only $850 now with oil line, and that has been welly track proven.

http://www.skylinesaustralia.com/forums/topic/261613-hypergear-hiflow-service-continued/

[Blackkers]

Okay thanks for that input guys, if a steel wheel turbo is what's going to fix this problem looks like that's what I'm gonna do, I'm also going to check the oil flow but other then that it's got me stumped. So if anyone could recommend someone who does decent turbo rebuilds that would be greatly appreciated as is all of your input! Thanks

yeah just go with hypergear, the new 21U profile is pretty damn good. someone made over 320 kw on e85 with it which is amazing for the stock r33 turbo housings. other than that it performs well as a stock replacement with a bit more oomph. responsiveness is about the same as a stockker because the stockers are just old now anyway.

edit: forgot to mention its cheaper than the competition too

Edited November 19, 2013 by Blackkers

[GTSBoy]

The rear wheel doesn't spin after they blow up, all 3 turbos the rear wheel has been f**ked and the front wheel still spins!! One of the turbos found some of the rear wheel in my exhaust (cat)

The wheels live on a common shaft. If the comp wheel will spin, then the shaft is free to turn, and if the turbine was still there (which it's not because it's dead) it would then still spin too.

[Nathan_works]

Thanks for all your help everyone, it was a block in the oil line! It's been fixed and I put a steel wheel turbo on the car aswell

[Ben C34]

Thanks for all your help everyone, it was a block in the oil line! It's been fixed and I put a steel wheel turbo on the car aswell

Good work finding it. For our benefit how did you find it? by checking flow out of turbo drain first, or just whipping off oil feed line?

[Nathan_works]

Good work finding it. For our benefit how did you find it? by checking flow out of turbo drain first, or just whipping off oil feed line?

I unbolted the oil line from the turbo put a bucket underneath and started the car to check flow and there was little to none (it would have been messy if there was) I got a braided line and done the same thing and I got a few hundred ml in seconds. So not sure how or why but the line was blocked or something.. New turbo has been on for a solid 24 hours, feels and sounds a lot better already. Very relieved so far!

[scotty nm35]

The line is blocked by the banjo bolt into the block usually. They have a .9mm restrictor built in don't they?

The VQ does anyway, it actually runs 3 restrictors due to high oil pressure.

[jjman]

I unbolted the oil line from the turbo put a bucket underneath and started the car to check flow and there was little to none (it would have been messy if there was) I got a braided line and done the same thing and I got a few hundred ml in seconds. So not sure how or why but the line was blocked or something.. New turbo has been on for a solid 24 hours, feels and sounds a lot better already. Very relieved so far!

its an oil line that is 15-20 yrs old, and with the restrictors they have in them they will undoubtedly gather deposits and block over such a period of time.

you are sorted for boost and tune now

[89CAL]

R33 Gts-t's have no restrictor in the block for the turbo oil line. Thats why this is usually done at the banjo bolt on the turbo