DIY Turbo Discussion greddy on a 1.8? homebrew kit?

SR20 Turbo restrictor

Thread Tools
 
Search this Thread
 
Old 08-07-2017, 10:00 PM
  #1  
Junior Member
Thread Starter
 
ByteVenom's Avatar
 
Join Date: Jan 2017
Location: "lol", MA
Posts: 384
Total Cats: 14
Default SR20 Turbo restrictor

I've been having some trouble finding an up to date listing with a restrictor size (and link to purchase).
I'm currently running no restrictor and I'm getting some oil in the intake.
Id appreciate some help just getting the right size and thread of the fitting.
ByteVenom is offline  
Old 08-08-2017, 01:10 AM
  #2  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

https://www.aliexpress.com/item/Turb...705972093.html
18psi is offline  
Old 08-08-2017, 01:32 AM
  #3  
Slowest Progress Ever
iTrader: (26)
 
thirdgen's Avatar
 
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 6,025
Total Cats: 304
Default

Or get a pop rivet where the shaft measures 1.5mm in diameter. Spend 2 cents, remove shaft, install.
thirdgen is offline  
Old 08-16-2017, 01:15 AM
  #4  
Newb
 
Yuen74's Avatar
 
Join Date: Dec 2015
Location: Chicago
Posts: 15
Total Cats: 0
Default

I just used this braided line and didn't have any issues with my T25.

42" 90 Braided Stainless Steel Line Aeroquip -3an universal oil feed turbo 4feet | eBay
Yuen74 is offline  
Old 08-16-2017, 09:26 PM
  #5  
Elite Member
iTrader: (2)
 
ridethecliche's Avatar
 
Join Date: Aug 2016
Location: New Fucking Jersey
Posts: 3,890
Total Cats: 143
Default

Originally Posted by thirdgen
Or get a pop rivet where the shaft measures 1.5mm in diameter. Spend 2 cents, remove shaft, install.
Maybe it's because your oil pressure was lower than mine? I'm running mobil 1 0w-40. It's possible that my higher oil pressure is causing the pop rivet to not be enough to reduce pressure?

Byte's turbo is leaking exactly where mine is lol.
ridethecliche is offline  
Old 08-16-2017, 09:52 PM
  #6  
Elite Member
iTrader: (1)
 
borka's Avatar
 
Join Date: Mar 2014
Location: Jacksonville, FL
Posts: 1,552
Total Cats: 196
Default

plenty of restrictor fittings on ebay

depending on the size of your oil feed line you need -3AN or -4AN restrictor fitting

-4AN
https://www.ebay.com/sch/i.html?_fro...ictor&_sacat=0

-3AN
https://www.ebay.com/sch/i.html?_odk...ictor&_sacat=0
borka is offline  
Old 08-16-2017, 09:55 PM
  #7  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,821
Total Cats: 3,481
Default

Originally Posted by ridethecliche
Maybe it's because your oil pressure was lower than mine? I'm running mobil 1 0w-40. It's possible that my higher oil pressure is causing the pop rivet to not be enough to reduce pressure?

Byte's turbo is leaking exactly where mine is lol.
what makes you think you have higher oil pressure?
18psi is offline  
Old 08-17-2017, 12:42 PM
  #8  
Elite Member
iTrader: (2)
 
ridethecliche's Avatar
 
Join Date: Aug 2016
Location: New Fucking Jersey
Posts: 3,890
Total Cats: 143
Default

I don't actually think it's too high, but gets up in the 60s which isn't crazy from what I've read. I don't have smoke out the exhaust so it would be strange if this was a pressure issue.

Todd didn't have this leak when he used the turbo and byte didn't have the issue with his older turbos.

So either it's a pressure issue or a drain size issue. From Garretts site, they expect those to be the issue before the turbo itself. That's also for new turbos though.

I'm just casting a wide net so I can systematically approach this.
ridethecliche is offline  




All times are GMT -4. The time now is 01:26 PM.