Click here to visit LS1Tech
Click here to visit Performance Trucks
Click here to visit Mod Motor Tech
Click here to visit Modern Hemi

PerformanceTrucks.net Forums  

Go Back   PerformanceTrucks.net Forums > GENERAL MOTORS SPECIFIC FORUMS > TrailBlazer SS
Sign in using an external account
Register Forgot Password?
Register Albums FAQ Members Calendar Search Today's Posts Mark Forums Read VendorsUsed CarsGarageStore TSBs & Recalls
Welcome to PerformanceTrucks.net Forums

Reply
 
LinkBack Thread Tools Search this Thread
Old 02-05-2009, 08:47 PM   #11
Trader Rating: 4
Adkoonerstrator
 
XLR8NSS's Avatar
 
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,412
Default

Nope, Maryland. It'll be in the single digits here tomorrow morning. I have oil temp added to my PID list now.

Can external inputs be added to the DH or just the OBDII stuff?
__________________
'07 GMC 2500HD RCLB 4WD.....Magnacharger TVS 1900 @ X.Xpsi with 2.8" pulley, 13.06 @ 103+mph
'08 AWD TBSS - LS3 6.2L and TVS2300 nearing completion!
a.k.a "Harold"
XLR8NSS is offline   Reply With Quote
Old 02-05-2009, 08:59 PM   #12
Trader Rating: 16
? ? ? ? ? ?
 
BigTex's Avatar
 
Join Date: Nov 2001
Location: East of Dallas
Posts: 7,043
Default

I'm not sure what my oil temps were, but I had already driven 45 minutes in traffic and freeway before I started checking oil pressure.
__________________
Richard-
2011 Z71 Avalanche
Current projects: 2002 Silverado RCSB, 1967 Chevy C10 LS conversion
Retired: 99 Excab Z71, 2003 Z71 Tahoe, 2003 Silverado SS, 2004 Avalanche, 2008 TBSS
BigTex is offline   Reply With Quote
Old 02-06-2009, 10:38 AM   #13
Trader Rating: 4
Truck Sponsor
 
leftcoast32's Avatar
 
Join Date: Aug 2005
Posts: 1,928
Default

The LS2 engines run lower pressure then the trucks have. I actually use Mobil 1 15/50 full synthetic, I am also in a very moderate climate. I have seen LS2's run as little as 10 psi even in the car platforms with a different oil pan. The LS2 does not have priority main oiling. You can run a blueprinted melling pump and get a little more pressure.

You have to watch that the PCV on the back of the drivers side head is not sucking up oil on hard acceleration. If this is happening and you dont watch your level you will be in trouble. I actually cap that PCV off or run a catch can on it so you can watch how much oil is being pulled from there. I currently run dual passenger side valve covers and push in style breathers. This has completely cured the issues.

I have some very hard miles on my forged LS2 and it has been holding together great. I think that it is best to use a 10/30 in the winter and 15/50 in the summer. This will help with the thermal breakdown.
__________________
http://www.leftcoast32.com
'07 TrailBlazer SS LSX390 "TVS2300" 1015 HP 936 TQ
Authorized MagnaCharger Dealer/Distributor
http://www.fquick.com/garages/Chevro...SS/2007/14026/
leftcoast32 is offline   Reply With Quote
Old 02-06-2009, 11:20 AM   #14
Trader Rating: 16
? ? ? ? ? ?
 
BigTex's Avatar
 
Join Date: Nov 2001
Location: East of Dallas
Posts: 7,043
Default

Quote:
Originally Posted by leftcoast32 View Post
The LS2 engines run lower pressure then the trucks have. I actually use Mobil 1 15/50 full synthetic, I am also in a very moderate climate. I have seen LS2's run as little as 10 psi even in the car platforms with a different oil pan. The LS2 does not have priority main oiling. You can run a blueprinted melling pump and get a little more pressure.
I've seen others mentioning the melling pump, and may add that to a future mod list. My main concern is having such low oil-pressure at high rpms. I've read countless threads talking about bearing failure. I'd like to be proactive if possible. If the best we can do is a melling 10296 pump and possibly the custom oil pan, then so be it.

Quote:
Originally Posted by leftcoast32 View Post
You have to watch that the PCV on the back of the drivers side head is not sucking up oil on hard acceleration. If this is happening and you dont watch your level you will be in trouble. I actually cap that PCV off or run a catch can on it so you can watch how much oil is being pulled from there. I currently run dual passenger side valve covers and push in style breathers. This has completely cured the issues.
Thanks for the info Joe! When I installed my TVS, my TBSS had 600 miles on the odometer. Upon pulling the intake off, there was A LOT more oil around the gaskets and in the intake runners than I would have expected. A catch can is definitely on my list.

Quote:
Originally Posted by leftcoast32 View Post
I have some very hard miles on my forged LS2 and it has been holding together great. I think that it is best to use a 10/30 in the winter and 15/50 in the summer. This will help with the thermal breakdown.
What your take on mixing oils of different viscosities? Like a blend of Mobil-1 10/30 and 15/50. For that matter, is 15w50 too thick to run on a low-mile stock motor?
__________________
Richard-
2011 Z71 Avalanche
Current projects: 2002 Silverado RCSB, 1967 Chevy C10 LS conversion
Retired: 99 Excab Z71, 2003 Z71 Tahoe, 2003 Silverado SS, 2004 Avalanche, 2008 TBSS
BigTex is offline   Reply With Quote
Old 02-06-2009, 12:28 PM   #15
Trader Rating: 4
Truck Sponsor
 
leftcoast32's Avatar
 
Join Date: Aug 2005
Posts: 1,928
Default

Quote:
Originally Posted by BigTex View Post
What your take on mixing oils of different viscosities? Like a blend of Mobil-1 10/30 and 15/50. For that matter, is 15w50 too thick to run on a low-mile stock motor?
I wont try to do a blend in mine but we also dont see any real cold temps. You may be able to run a blend in the winter and straight 15/50 in the summer. I really like the Mobil-1 15/50 and would use it even in a stock engine in the summer months. It is a full synthetic so it isn't as thick as you may think.
__________________
http://www.leftcoast32.com
'07 TrailBlazer SS LSX390 "TVS2300" 1015 HP 936 TQ
Authorized MagnaCharger Dealer/Distributor
http://www.fquick.com/garages/Chevro...SS/2007/14026/
leftcoast32 is offline   Reply With Quote
Old 02-06-2009, 12:32 PM   #16
Trader Rating: 4
Adkoonerstrator
 
XLR8NSS's Avatar
 
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,412
Default

I have 5w30, 10w30, and 15w50 here. I think it's too cold here right now to go with the 15w50 straight so I guess I'm going to put the 10w30 in.

I bought the 5 qt containers so if I need a little to top it off I'll probably use the 15w50 for that.

I am going to log some of my other vehicles too to make sure the gauges aren't WAY off like this TBSS.
__________________
'07 GMC 2500HD RCLB 4WD.....Magnacharger TVS 1900 @ X.Xpsi with 2.8" pulley, 13.06 @ 103+mph
'08 AWD TBSS - LS3 6.2L and TVS2300 nearing completion!
a.k.a "Harold"
XLR8NSS is offline   Reply With Quote
Old 02-06-2009, 12:34 PM   #17
Trader Rating: 4
Adkoonerstrator
 
XLR8NSS's Avatar
 
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,412
Default

Also, the oil temp reading from the computer is an estimated temperature. The PID even says estimated. The actual temp PID just reads -40 so it's not used. BigTex and I were talking earlier trying to figure out where a temp sensor was for the oil...none that we could think of. lol

My ESTIMATED temps never went over 228F but, does that really mean anything? I kinda have my doubts.
__________________
'07 GMC 2500HD RCLB 4WD.....Magnacharger TVS 1900 @ X.Xpsi with 2.8" pulley, 13.06 @ 103+mph
'08 AWD TBSS - LS3 6.2L and TVS2300 nearing completion!
a.k.a "Harold"
XLR8NSS is offline   Reply With Quote
Old 02-06-2009, 06:43 PM   #18
Trader Rating: 14
traveling mod

 
andrew383's Avatar
 
Join Date: Oct 2007
Location: so. indiana/texas
Posts: 3,270
Send a message via Yahoo to andrew383
Default

ok i got mine up to around 210* and the lowest i saw was 23psi to a high of 55psi.i forgot and put royal purple in itlast time i changed the oil about 2K miles ago.i run 5w30 and have never really thought about running anything different. i think when it warms up ill run 10w30.

interesting stuff here guys
__________________

07 Silverado crew cab
5.7 Ls1 - PCMofNC Tune - 216/220 - 243's - Tbss Intake - 2600 Circle-D - UPD cai - 6.2 catback - LPP - Aeroforce
02 2500hd crew cab Lb7 - PPe standard - Profab intake horn - aFe filter - 4" MRPB - AirDog II 165 - Aeroforce
03 Tahoe 5.3 Z71 - Tune - UPD cai - Magnaflow - Servos - Aeroforce
andrew383 is offline   Reply With Quote
Old 02-07-2009, 06:11 PM   #19
Trader Rating: 15
10 Second Club
 
DrkPhx's Avatar
 
Join Date: Nov 2001
Location: St. Michael, MN.
Posts: 4,508
Default

I've never believed the oil pressure or temperature gauge on these trucks. They seem more like idiot lights. My oil pressure gauge always reads a hair over 40 psi. I didn't know you can monitor oil pressure with EFILive. What PID is it?
DrkPhx is offline   Reply With Quote
Old 02-07-2009, 06:51 PM   #20
Trader Rating: 4
Adkoonerstrator
 
XLR8NSS's Avatar
 
Join Date: Nov 2001
Location: Deep in the seedy underworld of Koonerville
Posts: 21,412
Default

Alright, I changed the oil today. I put in a 5 qt jug of Mobil1 10w30 and in order to get it to the top of the cross hatch on the dipstick tube I had to add almost 2 qts of M1 15w50 that I had. I didn't want to put that much in but, I didn't buy anymore 10w30. lol

Pressure seems a tiny bit better but, not much. Filling it way up to the top of the cross hatch seems to have helped the dips in pressure a lot. On one WOT blast from a dig this evening pressure dropped to 36psi around 2700rpm but, recovered quickly and was at 45psi by 3400. It climbed to a high of 54psi on that run.

GM.ENGOILP is the PID in EFILive.
__________________
'07 GMC 2500HD RCLB 4WD.....Magnacharger TVS 1900 @ X.Xpsi with 2.8" pulley, 13.06 @ 103+mph
'08 AWD TBSS - LS3 6.2L and TVS2300 nearing completion!
a.k.a "Harold"
XLR8NSS is offline   Reply With Quote
Old 02-07-2009, 06:51 PM
PerformanceTrucks
Ford F150




Paid Advertisement
Reply

Tags
05, 07, 10296, 1550, 40, idle, normal, oil, pressure, presure, problems, psi, ss, trailblazer, whats


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 On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:14 PM.

 



Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2010, Crawlability, Inc.

PerformanceTrucks.net and InternetBrands, Inc. are not affiliated with the Ford Motor Company