Oil pressure with Melling pump ?
Thread Starter
8th Gear
Joined: Oct 2013
Posts: 8
Likes: 0
Oil pressure with Melling pump ?
Hi
I just installed a package from Vengeance Racing with VRX4 cam, trickflow tfs215 heads, timing chain, high volume oil pump from Melling, I believe #10296
We had 3 same packages before on C5 and the oil pressure was 49PSI at Idle
On this one, at Idle I am at 55 PSI and 70 PSI @ 3500 rpm - we didn't go further as the assembly is new
Perhaps on the other vettes, it was the older 10295 pump ?
I think this pressure is excessive ?
What do you think ?
Any risk ?
Thanks for your help !
I just installed a package from Vengeance Racing with VRX4 cam, trickflow tfs215 heads, timing chain, high volume oil pump from Melling, I believe #10296
We had 3 same packages before on C5 and the oil pressure was 49PSI at Idle
On this one, at Idle I am at 55 PSI and 70 PSI @ 3500 rpm - we didn't go further as the assembly is new
Perhaps on the other vettes, it was the older 10295 pump ?
I think this pressure is excessive ?
What do you think ?
Any risk ?
Thanks for your help !
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
I don't think it's excessive at all. Looks pretty normal to me. The newer LS7 runs up to 100 lbs so even if you hit 80 or 85 when you're higher on the rev scale you should be fine. My LS2 stroker will hit 80+ at 3,500 before it warms up.
Last edited by Last C5; Apr 12, 2015 at 08:46 PM.
Racer
Joined: Jan 2012
Posts: 398
Likes: 22
From: Las Vegas NV
I run the Melling 10296 on my HCI set up. 40psi at idle w/ 10w-30 @ 225*....70psi+ at 6800rpm. Perfect IMO.
I agree w/ above...IMO I'd prefer to keep oil pressure and volume up with the extra spring pressure and aggressive cam lobes.
10295 is high pressure
10296 is high pressure/high volume
I agree w/ above...IMO I'd prefer to keep oil pressure and volume up with the extra spring pressure and aggressive cam lobes.
10295 is high pressure
10296 is high pressure/high volume
Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
I run the Melling 10296 on my HCI set up. 40psi at idle w/ 10w-30 @ 225*....70psi+ at 6800rpm. Perfect IMO.
I agree w/ above...IMO I'd prefer to keep oil pressure and volume up with the extra spring pressure and aggressive cam lobes.
10295 is high pressure
10296 is high pressure/high volume
I agree w/ above...IMO I'd prefer to keep oil pressure and volume up with the extra spring pressure and aggressive cam lobes.
10295 is high pressure
10296 is high pressure/high volume
Racer
Joined: Jan 2012
Posts: 398
Likes: 22
From: Las Vegas NV
Team Owner
Joined: Dec 1999
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mine is maxed out at start up until up to temp and runs like the others stated....
kinda like my LS7......after a low oil pressure failure in 2 motors I will take good oil pressure any day
kinda like my LS7......after a low oil pressure failure in 2 motors I will take good oil pressure any day
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Drifting
Joined: Sep 2007
Posts: 1,649
Likes: 50
From: Goldsboro NC
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
Stock or high volume, LS engines over oil their top ends and should be equipped with restricted flow push rods and drilled lifter trays.