Benifits of using an oil restrictor?

[midnightrayne]

Just reading around on HMT and i here then talk alot about running oil restrictors on there setups, is this a good idea, or could it lead to oil starvation?

Okay discuss...

[N9netwoAccord]

I've read not to use them on DSM turbos, but to use them on BB turbos. No personal expierience though

[Boost_Lee]

Ive heard that oil pressure can sometimes be too high for turbos and COULD lead to a blown seal, I dont know how true this is, but it may be. Also, ball bearing turbos usually have a restrictor on the oil inlet, this can aid in spool up time (might apply to regular turbos, not sure). I run an in-line oil restrictor on my dsm setup and i havent seen any problems yet. I have it set about half way open

[starchland]

factory turbo car oiling system is setup properly, if you turbo a n/a engine the pressure could be too high for the turbo

[mtnickel]

For any Oil cooled turbos and non-ball bearing, our oil pumps will not blow anything out.

We have like <20psi at idle which isn't all that high. I would nto worry about blowing an oil seal nearly as much as i would about starving the turbo or having the oil coke up.

[starchland]

ok cool, but what about higher rpms...isnt our pressure like 60psi?

[turbo90accord]

turbonetics actually voids your turbos warrenty if you remove their restrictor that comes installed on all their turbos

[mtnickel]

ok cool, but what about higher rpms...isnt our pressure like 60psi?

not at idle.

anyways, on my mitsu turbo, i put a 1/16" restrictor in and it blew the turbo...burned out.

if you run a 3an line...it's a restrictor enough.

[midnightrayne]

k not gonna run a dsm turbo fixing to get my new turbo and just want to take any and all precautions not to blow it. i know the turbo thats on the car now i blew the seals so i am really thinking about getting the rescrictor. anyone have any other personal experences?

[92ex]

i blew my oil seals with no restrictor...

[aleks77]

Im plannin to run one with my Garrett "60-1" turbo, still doing research on this topic tho

[mtnickel]

if' you're not measuring the PSi at the turbo inlet, then run no restrictor. If you have the fittings and ability to measure the PSI entering the turbo, then run a restrictor as you can dial in an ideal pressure there.

But keep in mind that oil cooled turbos should run a fair amount of flow and pressure. And the blowing of an 'oil seal' is not necessarily from the pressure...could just be an old aged turbo.
pretty hard to determine unless all variables are known.

Mark

[bjaccord]

I haven't ever ran an oil restrictor on my Garrett, and it is still in great shape after many years of abuse, no signs of leakage at all.

I'm curious as to if the location you take the oil from will affect over all presure and cause problems for some and not others.

I take mine from a sandwich adapter on the oil filter, where does everyone else get theres? (I'm guessing most will say the pressure sensor port). Maybe having mine go through the filter before going to the turbo lowers the pressure somewhat. Just speculation though.

L8r

[mtnickel]

ya...most of us use the stealthmode fitting i think...but anyways, BJ is proof right there...you Do not need to run a restrictor...i Just find it more dangerous and possiblity for oil starvation is too great.

[92ex]

well, turbo in pretty good shape, first couple of months no oil, afterwards, tons of oil in chargepipes...got mine from the pressure sender unit