PDA

View Full Version : RB25DET Turbo sound...


Turb0wned
08-01-2013, 12:50 AM
I'm getting a crazy loud whinning like sucking noise (best way I can explain it) coming from the turbo. I can hear it from the intake and if I remove the filter its even louder. Also gets louder as I rev. Any ideas? Turbo gone? Started after I stepped on the gas a bit on 7PSI.

MADE
08-01-2013, 02:41 AM
Escaping of sucking?

Escaping check your gaskets.

It sounds similar some trying to learn to whistle but can'y get it down.

fliprayzin240sx
08-01-2013, 11:31 AM
The fins could be bent causing it to whistle. Check for shaft play too, maybe bearings going bad and wheel may be slightly touching the housing.

Turb0wned
08-01-2013, 12:53 PM
Well just checked, 2 or 3 fins have the corner of them broken off... I don't know what could have caused that though. Never went over 7 psi while I had it..

fliprayzin240sx
08-01-2013, 06:16 PM
Shit could have gotten sucked in...doesnt take much to damage them when spinning over 100,000rpm.

AS240
08-14-2013, 05:00 PM
Is the turbo a series 1 or 2

Turb0wned
08-14-2013, 11:37 PM
Is the turbo a series 1 or 2

Series 1....

AS240
08-15-2013, 12:03 AM
The first signs of my oil pump failure was the sounds my turbo started making.
It was a whizzing/zipping noise that got louder with revs which was most likely the bearings in the turbo dying.
I'm about to post up a rb25 turbo for sale(not the same one that was dying lol)
Check out the for sale section in a few minutes if you're interested.

Turb0wned
08-15-2013, 12:10 AM
The first signs of my oil pump failure was the sounds my turbo started making.
It was a whizzing/zipping noise that got louder with revs which was most likely the bearings in the turbo dying.
I'm about to post up a rb25 turbo for sale(not the same one that was dying lol)
Check out the for sale section in a few minutes if you're interested.

I actually bought one about 2 weeks ago. Been running strong since then. I don't think it was the oil pump but we will see. I did have the same sound you said but were your blades all chewed up?

AS240
08-15-2013, 12:14 AM
No the blades were perfectly fine.
I got sent the wrong oil pump. I got a R34 rb26 oil pump instead of a R33 oil pump.
They are incompatible due to the longer crank drives found on the R34.
I had perfect pressure for 500 miles and then it gradually got lower until it wasn't reading at idle.