$8 oil restrictor, how to
$8 oil restrictor, how to i needed an oil restrictor but could never find a good write up for one. thought a how to thread would help atleast someone. This took me 5min to do.
1.First you need to buy a Nitrous Jet that is the size you need. you can get one for less than $8 from summit racing. i bought a variety pack to safely narrow it down to the one i needed.
2.Take one of the an adapters from your feed line and cut a part of the end off.
before
after
3. next take a drill bit and bevel the inside alittle bit (cell pics, sorry). this is for the jet to sit into
4. put the jet in the adapter
5. And hook up your oil line.
6. Your done. Go drive your car.
I did it this way so i can easily switch to a different size jet if need be. No modifications to the jets are necessary. I have no leaks either.
hope this helps someone
1.First you need to buy a Nitrous Jet that is the size you need. you can get one for less than $8 from summit racing. i bought a variety pack to safely narrow it down to the one i needed.
2.Take one of the an adapters from your feed line and cut a part of the end off.
before
after
3. next take a drill bit and bevel the inside alittle bit (cell pics, sorry). this is for the jet to sit into
4. put the jet in the adapter
5. And hook up your oil line.
6. Your done. Go drive your car.
I did it this way so i can easily switch to a different size jet if need be. No modifications to the jets are necessary. I have no leaks either.
hope this helps someone
Last spring I bought all the necessary parts to do this, including about 10 different jets. Everyone I asked advised against it (HSW, N2Outlet, etc.), so I returned the parts. The concern was a less than perfect seal using the -3AN jet "head" on a sawed-off -4AN fitting. If you never run into any problems, I'm going to revisit this. 
i did the same thing on one of our cars. it seaped a little every now and then. had to have it really tight or it would leak. so tight it would start to deform the fitting a little.
the only turbo we needed one on was a mp70. i have tried a turbonetics 76, pt88, pt gts72 and none of them needed a jet. just saying i wouldn't bother with a jet at all unless you are having a problem.
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i needed an oil restrictor but could never find a good write up for one. thought a how to thread would help atleast someone. This took me 5min to do.
1.First you need to buy a Nitrous Jet that is the size you need. you can get one for less than $8 from summit racing. i bought a variety pack to safely narrow it down to the one i needed.
2.Take one of the an adapters from your feed line and cut a part of the end off.
before
after
3. next take a drill bit and bevel the inside alittle bit (cell pics, sorry). this is for the jet to sit into
4. put the jet in the adapter
5. And hook up your oil line.
6. Your done. Go drive your car.
I did it this way so i can easily switch to a different size jet if need be. No modifications to the jets are necessary. I have no leaks either.
hope this helps someone
1.First you need to buy a Nitrous Jet that is the size you need. you can get one for less than $8 from summit racing. i bought a variety pack to safely narrow it down to the one i needed.
2.Take one of the an adapters from your feed line and cut a part of the end off.
before
after
3. next take a drill bit and bevel the inside alittle bit (cell pics, sorry). this is for the jet to sit into
4. put the jet in the adapter
5. And hook up your oil line.
6. Your done. Go drive your car.
I did it this way so i can easily switch to a different size jet if need be. No modifications to the jets are necessary. I have no leaks either.
hope this helps someone
Is it a ball bearing turbo charger? If not you shouldn't need a restrictor.
https://www.turbobygarrett.com/turbo...oil_restrictor
https://www.turbobygarrett.com/turbo...oil_restrictor
On The Tree
Joined: May 2012
Posts: 133
Likes: 1
unless you have too much oil pressure, which could blow your seals or wash out the bearings - both of which can destroy your turbo - especially the cheaper chinese turbos - and indeed you would need some form of restrictor
been there
been there
What seal are you talking about blowing? There’s a manufacturer rating of min/max pressure and flow if you buy a “real” turbo. Unless you have a seriously oddball oiling system you should fall within these parameters using a -3 or -4AN supply and no restrictor. 98% of time oiling issues are caused by inadequate drains. Too many noobs jump on the restrictor band wagon when they don’t have decent drains. I’ve run over 100psi of oil pressure on my LS 5.3 (which is beyond reasonable or necessary) and not had an issues with an AN4 supply line, no restrictor, and a ¾” drain. S400 turbo.
If you installed a restrictor and your problems magically disappeared, that doesn’t necessarily make it a good idea. It usually means you aren’t supplying enough oil to your bearings and you’re shortening the turbo life drastically. I’ve yet to see a smoking turbo setup that used a properly plumbed ¾” drain… ever. I’ve seen many poorly setup ½" drains cause problems.
If you installed a restrictor and your problems magically disappeared, that doesn’t necessarily make it a good idea. It usually means you aren’t supplying enough oil to your bearings and you’re shortening the turbo life drastically. I’ve yet to see a smoking turbo setup that used a properly plumbed ¾” drain… ever. I’ve seen many poorly setup ½" drains cause problems.
