Jump to content
SAU Community

Recommended Posts

just installed a r33 turbo on my rb20det and there seems to be a whizzing sound on low spool.......

the turbo has no shaft play and spins freely without a sound out of the car....

there is no smoke or anything of that sort....

any1 have an idea of why it would be whizzing when spooling up???

im kinda scared to drive it...a mate told me that it may not be getting oil....although my last turbo was fine and didnt whizz...and got oil just fine...all i did was place the new turbo in my old turbo's existing place....PLZ HELP!!!

does your r33 turbo on ur rb20det make a whizzing sound???

Link to comment
https://www.sau.com.au/forums/topic/206649-just-installed-r33-turbo-in-rb20det/
Share on other sites

hey bud. might be unrelated.. my R33 25t.. i get a whizzing sound too.. my turbo is stock, no shaft play, oil etc so thats normal. ppl on the streets hear my turbo spooling up haha. kinda cool at times.. but i try to keep a low profile.

it literally is a whizzing noise...not spooling noise....im scared to drive the car...ive relpaced over 10 turbo's and neva heard a turbo sound like this....

on low spool it literally sounds like a whizzzz whizzzz whizzzz....

If you have a MASSIVE screwdriver, put it onto the center of the turbo and put your ear on it. You will be able to hear the bearings inside. If they seem to be spinning fine then its probably nothing. However if you can hear somethings wrong with the bearings then yeah its not getting oil or one of the blades is off balance.

ive got a r33 turboon my rb20, and yeah had a high flowed r32 turb before, a mate also has a r33 turbo on a rb20 but the r33 turbo's in general seem to make alot of noise when spooling up.. its got a big whistling/whizzing noise as it spools up..

Dont worry about it,

If your worried and can be bothered, then take it to the mechanic and get him to check it out, but i highly doubt there's anything wrong with it.. my mechanic said all r33 stock turbos seem to have a real whistle to them.

:D

Thanks

Nat

If you have a small leak at the connection to the intercooler piping, you will can a rustling leaves type sound. Also if the dump pipe has not been connected properly.

I had my turbo spool to 12psi once in my r33, and it did sound a hell of a lot different to the 7psi spool up (obviously).

What boost you running?

wow thanks for the reply fella'z....its got the 10psi actuator and yeh the whizzing is always der on low spool and once it spools up it goes away and is quite a loud noticable spool....

although i gotta admit its definately an upgrade and very noticably gains throughout the higher rpm's.....drifting is much nicer now....and quick shifting to second leaves your wheels spinning....

its a funky sound the whizz...and quite sensitive to spool up...i checked all connections and there all tight with no leaks.....

ive inspected it very closely and seems ok...drives fine...im going to get my safc tuned and up the boost to 14.5 psi and see how it goes...wish me luck!\

I WILL KEEP EVERY1 UPDATED...IF ANY1 HAS AN IDEA ABOUT MY WHIZZING PLEASE POST...YOUV'E ALL BEEN GREAT HELP!

Edited by allthewaytotheskyline
ive inspected it very closely and seems ok...drives fine...im going to get my safc tuned and up the boost to 14.5 psi and see how it goes...wish me luck!\

sorry to sound like a total noob but i thought stock R33 GTST turbos can only be pushed to 12-13psi max???

i may be wrong

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Try looking at Eibacb/H&R springs Thats what Gary sourced for mine.
    • Hey y'all! I'm curious about how y'all go about widebodying your cars. I noticed that when running a square setup, my front wheels are a bit more tucked in than my rear wheels. Not by much, maybe 5-10mm. This leads me to wonder - when I widebody, should I use narrower front flares and wider rear flares? I found a set of 40mm rear flares that I really like, and was thinking of pairing them with some 18mm front flares, but I don't want the car to look strange. How have others done this? Note, I'm in a sedan. Thanks!
    • And if it was anything other than an auto tranny part, it might be a problem. But seeing as all auto trannies belong in the recycling bin, it's fine.
    • I have an R32 Fenix rad. It is good.
    • All the schemas I can see, indicate your typical setup of ATF 'cooler' (read: heat exchanger) in the bottom radiator tank..ie; https://nissan.epc-data.com/stagea/wgnc34/5413-rb25det/engine/214/ ...but I can prattle on a bit here. These trannies have a thermistor in the sump ~ the TCU reads this and 1. bumps the line pressure up when the ATF is 'cold' and 2. prevents the TC lockup clutch from operating, until the ATF comes up to minimum operating temp (keeps the ATF 'churning' through the TC so it heats up quicker) -- trigger point is around 55C. In these conditions, the engine coolant temperature rises faster than the ATF temperature, and also helps heat the ATF up, which is why it's best to think of the in radiator tank setup as a heat exchanger ; the heat can flow in both directions... ...with these trannies, the 'hot' ATF comes out the front banjo bolt, flows through the cooler/heat exchanger, and returns to the box  via the rear banjo bolt. This gets a mention, due to the wildly different opinions wrt running auto trans fluid coolers ~ do you bypass the in radiator tank altogether, or put the cooler inline with the in radiator tank system...and then, do you put the additional cooler before of after the in radiator tank system?... ....fact is the nominal engine operating temp (roughly 75C), happens to be the ideal temperature for the ATF used in these trannies as well (no surprises there), so for the in radiator tank system to actually 'cool' the ATF, the ATF temp has to be hotter than that...lets say 100C -- you've got 25C of 'excess' heat, (slowly) pumping into the 75C coolant. This part of the equation changes drastically, when you've got 100C ATF flowing through an air cooled radiator ; you can move a lot more excess heat, faster ~ it is possible to cool the ATF 'too much' as it were...(climate matters a lot)... ...in an 'ideal' setup, what you're really trying to control here, is flash heating of the ATF, primarily produced by the TC interface. In a perfect world, wrt auto trans oil cooling, you want a dedicated trans cooler with builtin thermostatic valving - they exist. These should be run inline and before the in radiator tank system ~ when 'cold' the valving bypasses the fin stack, allowing the ATF to flow direct to the in radiator tank heat exchanger, so it works 'as intended' with helping heat the ATF up. When 'hot' (iirc it was 50C threshold), the valving shuts forcing the ATF through the cooler fin stack, and onto the in radiator tank heat exchanger...and you sort of think of it as a 'thermal conditioner' of sorts...ie; if you did cool your ATF down to 65C, the coolant will add a little heat, otherwise it works as intended... ...the 'hot' ATF coming from the front bango bolt, is instantiated from the TC when in use, so all/any flash heated oil, flows to the fluid-to-air cooler first, and because of the greater heat differential, you can get rid of this heat fast. Just how big (BTU/h) this cooler needs to be to effectively dissipate this TC flash heat, is the charm...too many variables to discuss here, but I just wanted to point out the nitty-gritty of automatic trans fluid coolers ~ they're a different beastie to what most ppl think of when considering an 'oil cooler'... /3.5cents   
×
×
  • Create New...