Oil Pressure Spike in Boost - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 07-07-2009, 11:49 PM   #1
Junior Member
Thread Starter
iTrader: (7)
 
Join Date: Aug 2006
Location: Binghamton, NY
Posts: 448
Total Cats: 1
Default Oil Pressure Spike in Boost

I'm getting a strange oil pressure spike when I hit about 10psi. Pressure goes from normal ant that rpm, say 30psi, to ~75psi. Only happens when I hit ~10psi or so.

The way I see it, the only system that can reach that pressure is the oil system and combustion pressure. I would assume that if I was getting pressure form combustion into my oil system that it would pin the gauge. Could be wrong on that though. My other thought is that maybe my drain line isn't big / straight enough. Running a .060" restrictor on a 1/4" line.

Thoughts?
--Alex
AlexO35 is offline   Reply With Quote
Old 07-08-2009, 12:10 AM   #2
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

dont the kids say you can see knock on the oil pressure gauge?
y8s is offline   Reply With Quote
Old 07-08-2009, 12:13 AM   #3
Junior Member
Thread Starter
iTrader: (7)
 
Join Date: Aug 2006
Location: Binghamton, NY
Posts: 448
Total Cats: 1
Default

Sorry, Autometer electric gauge with the sender mouted on top of the turbo oil feed.
--Alex
AlexO35 is offline   Reply With Quote
Old 07-08-2009, 05:54 PM   #4
Junior Member
Thread Starter
iTrader: (7)
 
Join Date: Aug 2006
Location: Binghamton, NY
Posts: 448
Total Cats: 1
Default

Nothing? Can knock be seen in aftermarket OPGs as well?
--Alex
AlexO35 is offline   Reply With Quote
Old 07-09-2009, 02:16 PM   #5
Elite Member
iTrader: (8)
 
Join Date: Sep 2006
Location: Severn, MD
Posts: 1,927
Total Cats: 5
Default

Quote:
Originally Posted by AlexO35 View Post
Nothing? Can knock be seen in aftermarket OPGs as well?
--Alex
Not mounted where you have it. The stock gauge has the sender by the filter and it's pretty much a microphone. That's why it picks up knock.
fmowry is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 58 12-13-2017 10:04 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Low oil pressure after 1.8 swap and new turbo setup JesseTheNoob DIY Turbo Discussion 15 09-30-2015 03:44 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:36 AM.