10-08-2012, 09:04 PM | #15 | |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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10-08-2012, 09:23 PM | #16 | |
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Ted told me it was unnecessary to replace the oil pump and timing chain unless the car has 60k miles.
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432 RWHP 391 RWTQ 12.37 1/4 mile on stock tires
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10-08-2012, 10:09 PM | #17 |
Drives: his wife crazy buying mods Join Date: May 2012
Location: Gilmer, TX
Posts: 1,342
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Just did a cam install and I went with a Melling.
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Gone But Not Forgotten
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10-08-2012, 10:12 PM | #18 |
Drives: C6 Z06 Join Date: Nov 2010
Location: Houston TX
Posts: 109
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Lol! Wow if you really want it just buy it.
But don't ask a question if you know what answer you WANT. the failures are typically because debris gets lodged in the bypass cylinder. The Melling or SLP pump have identical reliefs. They are just as prone to the same fate but they just don't have even 5% of their units in the field compared to GM for anyone to observe fail in this odd way. The GM oil pump is fine for your requirements honestly. When it comes to oil pressure "more is better" doesn't necessarily apply. |
10-09-2012, 12:41 AM | #19 | |
Drives: 2010 Camaro 2SS/RS Join Date: Oct 2009
Location: Ft Lauderdale, FL
Posts: 318
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To think when I did my cam swap I had the stock oil pump in my hands, and thought maybe I should change this since it is right here. :face palm: It is only $130 at most for the upgraded oil pump. I would take that over a $1200 dollar bill for a new oil pump install at a dealership.
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10-09-2012, 07:47 PM | #20 |
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Melling Oil Pump & C5R timing chain every camshaft build...
Better to put the parts in while you are already in there not doing the labor. Oil pump failures have plagued some of the V8 LS3's http://www.camaro5.com/forums/showth...=oil+pump+fail http://www.camaro5.com/forums/showth...=oil+pump+fail http://www.camaro5.com/forums/showth...=oil+pump+fail ---- Not saying that this is the normal , because obviously there are a TON more good ones out there than bad.. But why take a chance when you are already tearing into the motor? Also remember, if you are doing the cam install bye-bye factory warranty now it's on you IF that oil pump fails. Just my two cents, been doing this for way too long to not do the proper preventative maintenance and recommend to my knowledge the best for my client. |
10-09-2012, 10:58 PM | #21 |
Drives: 2010 2SS/RS M6 Black on Black Join Date: Jan 2010
Location: Global Citizen
Posts: 1,243
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Don't have a Melling pump in mine--still have the stock cam, but will put one in down the road. I had a Melling cam in my 68 327 Camaro, and that cam was sweet. Still remember the specs: .454" lift 284* duration. Lopey but very streetable. If a company like Melling is still in business almost 50 years later they must be doing something right.
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Meh
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10-09-2012, 11:08 PM | #22 | |
Drives: 2013 A6 GT 5.0 Join Date: Nov 2009
Location: Edmond, OK
Posts: 2,909
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BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.
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10-10-2012, 07:18 AM | #23 |
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A buddy of mine has owned/operated a repair shop for over 20 years, he is also an AC Delco dealer. I cannot tell you the number of LS engine oil pump failures he's seen and repaired. Relief piston stuck in them all. The aluminum bore the relief piston rides in is poorly finished to start with and galls over time causing the piston to stick. We've dissected many failed pumps and they all show the same issue. The Melling is the same design oil pump as OEM ( gerotor ) however it's housing is cast iron versus the OEM pump which is aluminum. The Melling relief bore is better finished and I believe the cast iron housing is more stable greatly reducing if not eliminating this type of failure. To go through all the time, expense and labor for a cam change and not install a Melling oil pump, better timing chain and the LS2 damper is foolish. When you take into account higher seat and open pressures of double valve springs, radical cam profiles with high rates of opening and closing, any upgrades you can make in the LS valve train will pay dividends in longevity AND the oil pump swap is just common sense knowing the history of OEM LS oil pumps.
Ed M.
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RJT 2SS/RS, AAM 3.70's, MTI Sway Bars, Shifter & SS brake lines, ZLI calipers, rotors & pads, BMR Trailing & Toe Arms, rear cradle & diff bushes, Pedders XA's, Camber/Toe eccentrics, Radius arm inserts, GTO clutch reservoir, LS9 cam, Comp valve springs, Melling 10296 oil pump, CR5 timing chain, LS6 damper, CAI Cold Air Intake, ARH LT headers w/HF cats, GMPP touring axle back, Elite Engineering Catch Can, Forgeline 20x9.5 & 20x11 DS3 whls, 275/40/20 & 315/35/20 tires, 2011 Convertible spoiler, 1LE front spoiler, Lloyd "SS" Floor Mats, GM Camaro Trunk Mat, wrapped console & Grant steering wheel.
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10-10-2012, 07:25 AM | #24 |
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,014
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If your swapping the chain out then by all means put the Melling on it since the pump has to come off anyway.
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
10-10-2012, 08:27 AM | #25 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,218
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I have been building engines for over 33 years, and you have to take in to consideration Statistics.
How many GM LS Pumps are on the road and How Many Melling Oil Pumps are on the road on LS engnines. Of coarse if there are 100,000,000 GM LS pumps on the road there will be a percentage of failures even if it is 1/10 of 1 percent. You have to also Ask, What Makes a Melling Pump any better than a GM pump? Because someone said so on the internet, if it's on the internet it has to be true I think a lot of the Oil pump failures can be traced back to Installation Errors. Someone changes a chain, this requires unbolting the oil pump and re installing it, Seems easy enough bolts right back in Place RIGHT? WRONG!!!!!!!! Many do not know the pump must be Adjusted for clearance during the install. This requires removing the cover and running a feeler gauge around the pump rotor, you must have the same clearance all the way around the rotor. If this is Not done you can bet dollars to donuts the pump will fail, Melling or not. Oil pump failures can also be traced back to other causes like wrong Oil, over heating, running low on oil, over revving when cold just to name a few. The pump on the engine has a track record the pump in the box does not. I am not saying don't do it but I am saying your rolling the dice Either Way. Ted.
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
10-10-2012, 08:32 AM | #26 |
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Well said Ted!
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432 RWHP 391 RWTQ 12.37 1/4 mile on stock tires
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10-10-2012, 09:08 AM | #27 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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I've installed lots of mellings along with people I associate with. Nobody I know has had a melling fail in an LsX motor. I think I'll put my chips on the melling and upgrade it. Ill just be here reading about the stock oil pump failures for my amusement.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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10-10-2012, 09:19 AM | #28 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,218
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Tell Me what makes the Melling an Upgrade?
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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