oil restriction question

[Winona]

i am gunna be swapping turbos this w/e and i really dont want any surpises, i was wondering where the oil restrictor is if any. is it on the block/line/turbo? i havnt really looked on the line to see if there is one my options are is that i have 4 an line and was wondering if that would be a good enough restriction for a t28 non bb or not? or i can go 6 an line without refiting my 4 an line, but not sure about restriction if its needed or thats over kill or what?

[teddy]

You need a restrictor. It helps prevent premature turbo failure. I do believe all the t28's have a built in oil restrictor right at the oil feed. I would also use the 4an line. 6an is going to be overkill.

[Winona]

wel its not actually a t28 its a evo 3 16g turbo but its about the same size, but i know the 16g line has the restrictor in the line i just wanted to make sure the ca didnt have one in hte block or anyting before i searched on a dsm site thanks though

[c-rad]

The oil restrictors are only built into the Garrett GT series turbos as they are very sensitive to oil pressures. I know for sure there is no restriction in the Mitsu 16G turbos. Same with the Garrett non-BB turbos. There is a restrictor on the port that comes out of the block on the CA.

[Winona]

really so u dont think i will need a restricor, i no a lot of dsm guys dont have problems without running one, but i was wondering about diff oil pressures. so u think hte 4 an line will work fine then?

[float_6969]

I'm running a BB T28 with the taka lines (I think they're 4AN) w/o the stock oil restrictor and I have no problems whatsoever.

[c-rad]

I'm running a BB T28 with the taka lines (I think they're 4AN) w/o the stock oil restrictor and I have no problems whatsoever.

Thats because the GT turbos have built-in restrictors! If they didn't noobs would be blowing the seals out left and right and calling Garrett asking for a warranty claim.

[float_6969]

I know you dolt! I'm agreeing with you!

[GoofyATX240]

Actually some mitsu 20G turbos have restrictors built into them. I know mine does, and so do alot of the ones at forced performance.

[Bwana]

When I hooked up the supply for my t3 I pulled it off of my filter adapter (I use a remote filter with a cooler) so I could get the coolest oil possible. I started off running a -4 line and promptly blew the seal on my new turbo . I swapped it for a -3 and replaced the stock seal with an upgraded one and haven't had any problems since! fwiw...