Jump to content
SAU Community

Recommended Posts

Hey guys ive been getting mixed answers from alot of people can someone help

i have a rb30det and a brand new garrett gt3540 now for the oil feed fitting should i run a restrictor style fitting or just a normal type ive spoken to mtq he said you can run either depending on oil pressure and my good mate STAO from hypergear said i should use a normal fitting and the restricted one will cause my turbo to die

can someone please let me know im goin crazy i have a -4an braided oil feed line

both are inverted flare type ONE WITH THE restriction is a banjo type and the non restriction is a normal turbo to -4an please help guys cheers

as for oil pressure i have no idea as the motor is not it yet and only have a rb25det oil pump

photolff.jpg

Uploaded with ImageShack.us

Link to comment
https://www.sau.com.au/forums/topic/383557-gt35-oil-restrictor-help-arghhhhh/
Share on other sites

yeah they do as most garretts do but ive been advised from ATP in usa to use a ristrictor and mtq but then i have stao tellin me it will blow the turbo saying that i had a gt3071 on my rb25 with a normal fitting and front and rear seals went on that so i dont really want to risk a $1500 brand new turbo

has anyone here had experience with out with the restriction fitting

im really looking for results on the gt35 on either a rb25 or rb30det i know the fords are prone from factory to blow the seals for this reason i just want to make sure it will be fine with a restrictor as for warranty purposes

I've been running my GT35 on a RB25 with no oil restrictor, for ~3years now with out any problems.

I asked around about this as well and was told not to use a restrictor in the oil line as it is built into the turbo.

ok cool so i just got a email back from garrett and they said it all depends on the ammount of oil pressure your engine has and to make sure you dont get more then 55-60psi goin into the turbo and that a inline restrictor cant hurt

Of course they wont be replacing the turbo under warranty anyway. Too small a restrictor will definitely cause issues and I have seen too many GT35 turbine wheels shear the shaft at the rear bearing to not run a good supply of oil to it. Just my opinion though.

ATPUSA said if i follow his recommendations of using a restrictor it will be covered under warranty as even gt35 they fit the restrict the oil im just goin crazy here cause the last few garrett BBs turbos have died do to a normal fitting as do most fords with the same fitting so im not to sure what to do here its on a rb30det yet to be fitted back into the car so i cant excatly test how much oil pressure it has

this is what they said

Jayson, have a look on the turbobygarrett.comweb site (select Turbo Tech, then Basic, then Oil and Water Plumbing) it shows the max oil pressure for a Garrett Ball Bearing is 60psi, more than 60 psi may result in oil leak issues

I would go -12 tbh, but if you already have all the -10 stuff give it a go

i had big issues with my GT35 and a 5/8" (-10) oil return and they were resolved by making the drain 3/4" (-12)

also my oil feed to the turbo has a 1mm restrictor in it just before the turbo, has had it for over a year now without any issues.

ok cool as titan so i should get a 1mm fitting thats wat ive been told

what issues did u have with the 5/8 oil drain?? the braided line i have it about 60cm long but iknow its the thickness that i need to get right

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

    • You know what, I am enjoying your updates, but I have to say it is pretty poor form to walk into a shop that is paying for space and stock on the floor, try all their seats to work out what you are happy with, then buy somewhere else. If everyone did that the shop will be out of business with no opportunity for anyone to try a seat before buying. 👎  
    • Good work, and thanks for posting up your solution for future people!
    • Yeah mate that’s the plan, I just want something I can have fun in and work on during weekends.  There’s really only 1 road fit to drive the car on and luckily is been redone recently.  I do want to tune it next year sometime, no dynos here so I’m looking at an ECU that can be remote tuned. 
    • Initially I thought having a pair of Recaro seats would be a big bonus, it turns out these do get a little uncomfortable on long journeys (my fault, not the seat). I had a look through the GSM Performance website at reclining seats and booked an appointment to visit their show room. I got the Recaro Sportster CS for the R34 from here, was very happy with the service received so of course a re-visit was in order. Unfortunately the two Corbeau seats I had chosen aren't on display but they had 4 other options available. Two seats dug into my back, one dug into my legs and the other was perfect. I also found out that Recaro seats use a larger bolt pattern so some adaption was required. Luckily GSM offer some universal adaptors that should solve this problem. I searched the interwebs for price comparisons and Corbeau themselves were the cheapest at £300 cheaper (for the pair). I asked GSM if they could price match, unfortunately they couldn't. I later received an email saying Corbeau would honour them the same discount, but the purchase was already made. I did however order the brackets from GSM, both arrived on the same day. I started with the passenger side seat, knowing this was going to be a little trial and error. There are 3 mounting holes at the front and 2 at the rear on these JURAN Racing seat rails.  With the adaptor brackets mounted, the allen cap bolts started to push into the seat, NOT GOOD!  The rear mounting holes lined up but there were issues at the front. The holes were 1/2 hole out, so the brackets got a tickle with the drill to modify the holes. The supplied bolts weren't going to be long enough and a spacer was needed to stop the adaptor bars from bending. A local fasteners company supplied be with some nylon spacers and longer bolts (M8x30, although these will be replaced with 35mm long shortly) A before and after I pre-drilled the front bracket before making a start on the driver's seat to save some time. And in no time at all that was in the car too. The all black seats have transformed the interior and these are MUCH more comfortable. The only downside with the new Corbeau seats is I sit a little higher, but I'll happily accept that over discomfort. The Youtube video can be found here: https://www.youtube.com/watch?v=wPyttKPktXA
×
×
  • Create New...