Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV Internal Engine
Sign in using an external account
Register Forgot Password?
Register iTraderTimeslips Photos Members Search Today's Posts Mark Forums Read Used CarsVendor Directory
Search

Generation IV Internal Engine
2005-2014 LS2 | LS3 | LS7 | L92 | LS9
Sponsored by
ERL Performance

Welcome to LS1Tech.com!
Welcome to LS1Tech.com.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join LS1Tech.com today!


Reply
 
Thread Tools Search this Thread
Old 01-09-2011, 08:40 PM   #1
Staging Lane
Garage is empty, add now
 
ducky1's Avatar
 
Trader Rating: 7
Join Date: Sep 2009
Location: Palm Beach Gardens, FL
Posts: 88
Default is 75 psi oil pressure too high?

I just installed a dry sump oil system on my LS2 engine in my track car and running 5W30 oil it idles at 75psi oil pressure. Is there any problem with running that high oil pressure? I don't know what it will go to at high RPM as I was worried and didn't wind up the engine.Help
__________________
Ducky1
Never grow old
ducky1 is offline   Reply With Quote
Old 01-10-2011, 12:52 AM   #2
TECH Regular
Garage is empty, add now
 
IDRIVEAG8GT's Avatar
 
Trader Rating: 0
Join Date: Nov 2010
Location: Your GF's pants
Posts: 443
Default

?!?!?! Um..... In my personnal experience max you should idle with is about 40 and 75 at about 6500 rpm. Is the pressure adjustable on the pump side or something? it'd be wise to drop some oil pressure before you wash a bearing.
IDRIVEAG8GT is offline   Reply With Quote
Old 01-11-2011, 09:07 PM   #3
TECH Fanatic
1998 Pontiac Trans Am
 
RARON455's Avatar
 
Trader Rating: 35
Join Date: Apr 2008
Location: Fort Worth Texas
Posts: 1,613
Default

sounds awful High
__________________
1998 white T/A callies stuffed 383 (built by ME), prc heads, ported fast 92, EPS cam,morels,and the rest of the goodies,pushed by a QTP ford 9" Jakes performance 4l80 with transbrake and tcs billet converter.

Never save anything for a special day, THIS day the Lord has given IS special.
RARON455 is offline   Reply With Quote
Old 01-14-2011, 10:45 PM   #4
On The Tree
Garage is empty, add now
 
FOSTER21's Avatar
 
Trader Rating: 0
Join Date: Dec 2008
Location: Jonesboro, Ar
Posts: 139
Default

Uh is that a bad thing ive had several sbc cars that would idle @ 60 to 70. havent had a high volume pump on a ls motor yet, but a dry sump is definitely high volume!
__________________
99 Z28 T-56 "IT'S JUST GOT LONG TUBES I SWEAR"
FOSTER21 is offline   Reply With Quote
Old 01-15-2011, 08:34 AM   #5
TECH Fanatic
Garage is empty, add now
 
9sectruck's Avatar
 
Trader Rating: 9
Join Date: Dec 2008
Location: jefferson city MO
Posts: 1,062
Default

this is not in my goat but my bbc truck idles at 95psi cold and warm around 70psi and at 6500rpm its right at 100psi
__________________
2006 GTO 10.7@131.7 12psi 23deg 1.8 60ft. Back to stock.
1998 z28 camaro twin 62/66 precision turbos, forged 364 10.9:1 compression e85. PB 9.02 149mph
9sectruck is offline   Reply With Quote
Old 01-15-2011, 09:33 AM   #6
TECH Regular
Garage is empty, add now
 
IDRIVEAG8GT's Avatar
 
Trader Rating: 0
Join Date: Nov 2010
Location: Your GF's pants
Posts: 443
Default

It might be ok.... Depends on oil thickness and bearing tolerances.
IDRIVEAG8GT is offline   Reply With Quote
Old 01-15-2011, 01:25 PM   #7
TECH Fanatic
Garage is empty, add now
 
Trader Rating: 0
Join Date: Nov 2007
Location: NJ
Posts: 1,178
Default

having higher oil psi wont wash a bearing. it can only help bearings. but it will suck more hp to make the higher psi and could blow apart a cheap oil filter.
BigRich954RR is offline   Reply With Quote
Old 01-16-2011, 11:55 AM   #8
cam
TECH Addict
Garage is empty, add now
 
Trader Rating: 9
Join Date: Apr 2004
Location: Toronto Ontario Canada
Posts: 2,321
Default

Consult your builder/supplier for recommended pressure. It sounds high to me but maybe they have set clearances to utilize it? Dunno man but i'd certainly be doing some follow up on it. 75psi at idel doesnt seem to come up often in many posts here that ive read... ore like 40 range and 65 at WOT
__________________
cam is online now   Reply With Quote
Old 01-17-2011, 03:16 PM   #9
Turd Gen Guy
Garage is empty, add now
 
1nasty86's Avatar
 
Trader Rating: 63
Join Date: Dec 2008
Location: andalusia, alabama
Posts: 1,517
Default

MY high pressure ls6 pump makes 70 at idle with 5w40 havent went wot yet
__________________
1986 camaro- Stockish LS2
10.92 @ 122.3 motor pass
1nasty86 is offline   Reply With Quote
Old 01-17-2011, 03:22 PM   #10
TECH Apprentice
Garage is empty, add now
 
Kev SS's Avatar
 
Trader Rating: 5
Join Date: Apr 2007
Location: alabama
Posts: 342
Send a message via AIM to Kev SS
Default

Mine will idle at 50 and run at 60 cruising when cold. 40 at idle and 50 cruising when warmed up.

My old SS had a High volume oil pump. Idled at 65 cold.
When warmed up it idled at 50 and went 60 cruising and 75 wot.

75 at idle seems a little high.
__________________
2014 Silverado. 5.3 3.08 z71 4x4.
New toy one day.
Kev SS is offline   Reply With Quote
Old 01-18-2011, 06:18 PM   #11
TECH Resident
2002 Chevrolet Camaro
My Garage
 
BrianSF-GA's Avatar
 
Trader Rating: 0
Join Date: Sep 2010
Location: Cartersville, Georgia
Posts: 875
Default

I have similar pressures as "Kev SS" with a ported GM LS2 pump in a SDPC 402.
__________________

Light Pewter 2002 Camaro SS Hardtop-Dyno'd 508 rwhp/497 rwtq (SDPC 402, TEA/TFS CNC 215's, Vindicator 240/244 .605/.596 112 LSA, Ported 90 FAST/90 NWTB, Kooks LT's, Catless ORY, OZ700, Strange, Spohn, UMI, S60, Spool & 4.10's) (Sold ... onto other toys)
Ultra Marine 2008 Hummer H2 SUV, 393 bhp (Tow Truck)
Black Obsidian 2009 G37S Coupe, 7-Speed Auto, Michelin PSS's, 330 bhp (Wife's Toy)
Merlot Sunglo 2011 Harley Davidson Street Glide FLHX, 87 rwhp/103 rwt ... 107" build & more now underway
BrianSF-GA is offline   Reply With Quote
Old 01-18-2011, 07:20 PM   #12
Launching!
Garage is empty, add now
 
G Engines's Avatar
 
Trader Rating: 0
Join Date: Sep 2009
Location: greensboro, nc
Posts: 261
Default

being a dry sump you may have the pump spun a little too fast at idle. Your bypass only adjusts pressure for higher rpm's
__________________
G Engines is offline   Reply With Quote
Old 01-22-2011, 09:12 AM   #13
TECH Apprentice
Garage is empty, add now
 
99TransAmLS16Spd's Avatar
 
Trader Rating: 8
Join Date: Dec 2005
Location: Morris, IL
Posts: 396
Default

Quote:
Originally Posted by BigRich954RR View Post
having higher oil psi wont wash a bearing. it can only help bearings. but it will suck more hp to make the higher psi and could blow apart a cheap oil filter.
exactly right
__________________
10.58 @ 129.6mph best 60' of 1.46. Best MPH 130.79 Upgraded to Super Vic and 4150 tb, new times to come.

LME 416, RPM LV 5 T56, MWC 9"
99TransAmLS16Spd is offline   Reply With Quote
Old 01-22-2011, 09:37 AM   #14
9 Second Club
Garage is empty, add now
 
Trader Rating: 0
Join Date: Aug 2008
Posts: 463
Default

Are all of these pressures read off a mechanical or stock gauge?
__________________
Next project 1999 SS Camaro. Lose weight and maximize all good.
butler is offline   Reply With Quote
Old 01-22-2011, 03:24 PM   #15
TECH Resident
2002 Chevrolet Camaro
My Garage
 
BrianSF-GA's Avatar
 
Trader Rating: 0
Join Date: Sep 2010
Location: Cartersville, Georgia
Posts: 875
Default

"butler" ... I am reading off a stock guage. I am sure it is not as accurate as a good mechanical one, but it at least tells me I have oil pressure.
__________________

Light Pewter 2002 Camaro SS Hardtop-Dyno'd 508 rwhp/497 rwtq (SDPC 402, TEA/TFS CNC 215's, Vindicator 240/244 .605/.596 112 LSA, Ported 90 FAST/90 NWTB, Kooks LT's, Catless ORY, OZ700, Strange, Spohn, UMI, S60, Spool & 4.10's) (Sold ... onto other toys)
Ultra Marine 2008 Hummer H2 SUV, 393 bhp (Tow Truck)
Black Obsidian 2009 G37S Coupe, 7-Speed Auto, Michelin PSS's, 330 bhp (Wife's Toy)
Merlot Sunglo 2011 Harley Davidson Street Glide FLHX, 87 rwhp/103 rwt ... 107" build & more now underway
BrianSF-GA is offline   Reply With Quote
Old 01-23-2011, 10:42 PM   #16
TECH Regular
Garage is empty, add now
 
IDRIVEAG8GT's Avatar
 
Trader Rating: 0
Join Date: Nov 2010
Location: Your GF's pants
Posts: 443
Default

No arguing but I've seen plenty of SBC's not put together right and oil pressure too high wash out a bearing. But that's just me. What kinda oil filter are you running?
__________________
-08 PB G8 GT
658/634 @10psi
Current G8 Top Speed Record Holder at 202MPH

-07 Silverado CCSB "Gray Ghost"
1067/913 @19psi.
IDRIVEAG8GT is offline   Reply With Quote
Old 01-25-2011, 08:03 PM   #17
TECH Fanatic
Garage is empty, add now
 
9sectruck's Avatar
 
Trader Rating: 9
Join Date: Dec 2008
Location: jefferson city MO
Posts: 1,062
Default

My BCC is reading off a mechanical gauge, I run a blower on mine is the reason for the higher pres. to try to protect the front bearings
__________________
2006 GTO 10.7@131.7 12psi 23deg 1.8 60ft. Back to stock.
1998 z28 camaro twin 62/66 precision turbos, forged 364 10.9:1 compression e85. PB 9.02 149mph
9sectruck is offline   Reply With Quote
Old 01-26-2011, 06:54 AM   #18
Launching!
Garage is empty, add now
 
Trader Rating: 0
Join Date: Oct 2007
Posts: 266
Default

Quote:
Originally Posted by IDRIVEAG8GT View Post
No arguing but I've seen plenty of SBC's not put together right and oil pressure too high wash out a bearing. But that's just me. What kinda oil filter are you running?
So, just what does a washed-out bearing look like? I'm just curious about how a lubricant can remove metal from a bearing.
Busted Knuckles is offline   Reply With Quote
Old 01-26-2011, 06:54 AM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Tags
2002, 2008, 75, alittle, camaro, car, fast, high, oil, press, pressure, psi, pumping, rinning, sbc, silverado


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Refbacks are Off



All times are GMT -5. The time now is 09:27 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.5.2
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details