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04-02-2015, 05:47 AM
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#29 |
           
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Here is a pretty informative article about Zinc requirements in modified engines. It's a good read.
"The Truth About Zinc & Motor Oil" http://www.drivenracingoil.com/news/...-in-motor-oil/
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2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)
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04-04-2015, 11:36 AM
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#30 | |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Quote:
Unfortunatley it is a bad lifter. New springs, lifters, gaskets on the way. Once I pull the heads, ill check if the cam is ok, if its not, then ****, I have to pull all that crap out too. Old setup: Comp Cam Lethal racing Night Fury Cam .750 Pac 1208x springs New Setup: Cam Motion Lethal Racing Night Fury Cam (if the comp is screwed up) .660 BTR springs Sound is either a bad lifter from too much spring pressure, defective lifter, or defective comp cam. Hopefully the cam is okay, if it isnt, the upside is I will be putting in a better quality cam. Wonder what the oil analysis will come back with haha
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04-05-2015, 09:57 AM
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#31 |
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old school chevy rodder
Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012
Location: Oregon
Posts: 5,587
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YES you put a lot of excessive extra pressure on that cam and lifters. Heck I have the best TSP cam and its above the night fury specs I am sure and I used .675 springs for its .639/.623 lift with 112 lsa and 235/239. No one ever posts the specs of the night fury off their cam card....
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 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop |
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04-05-2015, 05:33 PM
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#32 |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Yeah I know, but At the time no one argued with Lethal on the spring pressure, and then they came out saying it was within spec. Doesn't make it optimal, just basically saying it's not the worst thing you can do. Oh well, it's in the past, i trusted a professional to spec a cam and sell me the springs, I did my own research on everything else and didn't really know how important spring pressure was. 23x/23x 61x/61x @113
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04-08-2015, 06:52 PM
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#33 |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Update
New oil analysis came in, still had moderate iron levels, which I guess is from the bad lifter. Everything else got better. Iron level improved, but that was just because the oil had less time on it.
Working on changing lifters, springs, and checking cam now.
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04-20-2015, 10:12 AM
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#34 |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Cam had a lobe wiped out, all exhaust valves are bad, all rockers are eaten up, even the comp trunnion is destroyed on a few, bad lifter.
Changed to Johnson lifters, new Cam Motion Cam, new exhaust valves (lapped the new vlaves/seats), new rockers with BTR trunnion kit, new BTR .660 springs. Running great as of last night.
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04-20-2015, 12:10 PM
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#35 |
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Drives: 14 Camaro 1LE,328i, and some Hondas Join Date: May 2014
Location: Virginia
Posts: 799
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Good to hear that it's already up and running. Those Johnsons are nice
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14' Camaro 1LE - Now self-tuned
FRH ported heads, Cam Motion LL solid roller, Jesel rockers, Morel lifters, Kooks headers, Corsa exhaust, ADM intake, Stock compression/bore/stroke 551whp 504wtq  |
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04-20-2015, 12:36 PM
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#36 | |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Quote:
Just read your sig, thats a killer setup!! Had a chance to race yet?
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04-20-2015, 12:44 PM
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#37 |
Drives: 2017 Jaguar F Type R Tuned 498awhp Join Date: Apr 2013
Location: Canada
Posts: 871
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Do you think this was all caused due to the valvetrain and cam not being matched up correctly? Lift, spring pressure etc?
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JRE cammed w.full bolt ons 444rwhp/422rwtq SOLD
2017 Jaguar F Type R ''Life moves pretty fast. If you don't stop and look around once in a while, you could miss it.'' - F. Bueller |
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04-20-2015, 01:06 PM
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#38 | |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Quote:
Spring pressure being too high, combined with an aggressive exhaust lobe profile. Lethal Racing owned up to the spring issue, and helped me out with the parts. They have since moved to Cam Motion, changed the specs slightly as far as lift and duration, and they use a different exhaust lobe profile now. So better quality cam, friendlier specs, less spring pressure, better lifters, new rockers, new valves should make the new setup really strong. I dont race much, if at all, so it doesnt get run too hard.
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04-20-2015, 01:17 PM
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#39 |
Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010
Location: Clermont, IN
Posts: 3,297
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Im just glad to see another oil doing what its designed to do.....lubricate the internal parts. Like most all motor oils do.
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Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!! |
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04-20-2015, 01:52 PM
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#40 |
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Writer
Drives: 2010 SS / 1967 Camaro Join Date: May 2009
Location: Chicago, IL
Posts: 7,216
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Congrats on getting it back up and running, so the culprit was too much spring pressure Chris?
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PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II 13.15@106 1.95 | 100% Stock 12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune 12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune 11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts 10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800 |
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04-20-2015, 01:54 PM
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#41 |
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Drives: 2017 Jaguar F Type R Tuned 498awhp Join Date: Apr 2013
Location: Canada
Posts: 871
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Great to know! I am happy to hear you are back up and running! Have a great season. Drive safe
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JRE cammed w.full bolt ons 444rwhp/422rwtq SOLD
2017 Jaguar F Type R ''Life moves pretty fast. If you don't stop and look around once in a while, you could miss it.'' - F. Bueller |
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04-20-2015, 02:27 PM
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#42 | |
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[COTW 5/12/14]
Drives: 2012 CRT NF Cammed 2SS/RS For Sale Join Date: Oct 2011
Location: NOLA
Posts: 6,115
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Quote:
Thanks man, yes spring pressure was the problem across the board. And the aggressive exhaust lobe profile exaggerated the spring problem on those valves. Which is why the dead lifter, rocker, and chewed up valve tips were all on various exhaust valves. Intake valves were all good, a couple intake rocker trunnions were going bad/worn irregularly too, so it was a matter of time before those had trouble. Only one lobe on the cam was bad to the touch, seemed like the bearings in the lifter failed. Lethal has stepped up, fixed these problems with their cam packages, and helped me out with parts to get my car running again. Ill be back on the dyno in a couple weeks to update the tune.
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