99RTA

iTrader: (-1)

LS1: A319 T5, 107#
Displacement = 5.7 L. / 346 CID
Bore x Stroke = 99mm x 92mm / 3.90" x 3.62"
Compression Ratio = 10.1:1
Horsepower = 345/350 HP @ 5,200 RPM
Torque = 350/375 #-Ft. @ 4,400 RPM
Redline = 6,000 RPM
Fuel Cut OFF = 6,200 RPM


Firing Order = 1-8-7-2-6-5-4-3
Spark Plug Type = 41-931
Spark Plug Gap = 1.524mm / 0.06"
Oil Type = Mobil 1 (E) 5W-30 Synthetic or Equivalent
Oil Capacity = 6.5 Quarts / 5.7 L. (With oil filter change)


Oil Pressure (Minimum - Hot):
1,000 RPM = 41 kPa / 6 psig
2,000 RPM = 124 kPa / 18 psig
4,000 RPM = 165 KPa / 24 psig



Length = 519mm / 20.43"
Width = 460mm / 18.11"
Cylinder Bank Offset = 24.10 mm / 0.949"
Bank Angle = 45 degrees
Deck Height = 234.7 mm /

99RTA

iTrader: (-1)

You are not far from the min oil pressure...somethings not right.

c5formula

iTrader: (55)

yeah i just know they are gonna tell me that its within the min pressure allowance

99RTA

iTrader: (-1)

Probably worth getting the oring changed on the oil pump pickup. Does it tick quite a bit right after you start it? Usually the oil will aireate if the oring is bad causing the lifters to tick. There could be many other things causing this problem. Wish there was a quick fix but you gotta start someplace. You might want to have them compare it to another ls1 car. Honestly your oil pressure is low....no matter how much they try to BS you...its too low. DON"T BEAT ON IT till you find the answer.

kblehm

iTrader: (8)

Its really not a hard fix to replace the oil pump O ring. Good luck at the dealership.

c5formula

iTrader: (55)

yeah ill be bringin it back up there a lil later today.

Oil Pressure (Minimum - Hot):
1,000 RPM = 41 kPa / 6 psig
2,000 RPM = 124 kPa / 18 psig
4,000 RPM = 165 KPa / 24 psig

its so hard to believe that the motor would still hold together with only 24psi of oil pressure at 4k let alone 6psi at idle!!

c5formula

iTrader: (55)

well i went and dropped it off at the dealership today. actually think that they are gonna go ahead an change out the oil pump. oh an i took some pics an a video of the oil pressure today while drivin it to the shop.





and here is the video i took...

http://s78.photobucket.com/albums/j1...=VIDEO_001.flv

Berry's 98SS

the same thing just happened to me i had my ls1 rebuilt put a cam in, ported stock heads, and a z06 oil pump. i drove it 1k miles to break it in before i started running it through the gears good. i only did it a few times and noticed i had some bottom end noise so now its in the damn shop again it made me

c5formula

iTrader: (55)

that sucks bro. well hopefully they get this fixed cause as of right now with buying the used motor an having them put it all in the total cost is over $7,000 right now!

Berry's 98SS

so my advice is to not drive it till u get the problem solved or way more problems will be in your future

c5formula

iTrader: (55)

so can anybody tell me why GM says all the ls1 needs pressure wise is
Oil Pressure (Minimum - Hot):
1,000 RPM = 41 kPa / 6 psig
2,000 RPM = 124 kPa / 18 psig
4,000 RPM = 165 KPa / 24 psig

but my old motor an every other ls1 or ls based motor vehicle iv ever ridin in or drivin have had 35-40psi at 1,000 45psi+ while driving an around 60psi+ under WOT?