[Z06] High titanium levels in oil
11-29-2018, 08:15 PM
#1
High titanium levels in oil
Hello
just got my oil report back from Blackstone which reads titanium at 37 versus unit average of 2.My engine has 96,000 km.Heads are AHP stage 4 with mild star guides with AHP cali 16 cam.I run RL 5w 40 oil.Car goes through quart plus a day at the track.Previos oil analysis at 70,000 km and 50,000 km showed 0 levels of titanium.I noticed that some of the oil in the bottom of the oil change pan looked lumpy.I am concerned about the rods.Engine runs well.
Thanks Guys
just got my oil report back from Blackstone which reads titanium at 37 versus unit average of 2.My engine has 96,000 km.Heads are AHP stage 4 with mild star guides with AHP cali 16 cam.I run RL 5w 40 oil.Car goes through quart plus a day at the track.Previos oil analysis at 70,000 km and 50,000 km showed 0 levels of titanium.I noticed that some of the oil in the bottom of the oil change pan looked lumpy.I am concerned about the rods.Engine runs well.
Thanks Guys
11-29-2018, 09:20 PM
#4
Team Owner
Post up the whole sheet...you have a problem.
11-29-2018, 11:20 PM
#6
Drifting
I have 24000 miles. Many oil changes and a Wix filter. For 19000 miles it was O. Most guys are 0-3 on titanium. Did a little track time and it shot to 20! Mind you I change the oil after each track day. No more tracking but still 15. I have Trick flow heads. I am told it's definitely the rods rubbing. Quiet and runs beautiful. I will bet few guy do oil analysis to know. I now know and it concerns me. Don't know where this goes from here.
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Landru (11-30-2018)
11-29-2018, 11:32 PM
#8
Pro Mechanic
Pro Mechanic
Obviously, there are only two places from where the Ti in your wear metals can come: connecting rods and intake valves.
Being that your iron numbers have actually gone down and if the Ti was coming from valve stems you'd, also, have high iron (from worn guides), I doubt the Ti is coming from valves. It's likely you have a developing problem with connecting rod high end side wear.
I'd go another couple thousand miles and sample the oil, again, but I also think that 96,000 on an engine that is tracked frequently, it's probably time for a rebuild.
Being that your iron numbers have actually gone down and if the Ti was coming from valve stems you'd, also, have high iron (from worn guides), I doubt the Ti is coming from valves. It's likely you have a developing problem with connecting rod high end side wear.
I'd go another couple thousand miles and sample the oil, again, but I also think that 96,000 on an engine that is tracked frequently, it's probably time for a rebuild.
11-29-2018, 11:51 PM
#9
Re z06
I have the moldstar 90 copper guides with inspected and microplolished stock titanium intakes.I allso noticed when I changed my oil when I dumped the pan I found the oil looked a bit different,almost chunky.Given the heads only have 20,000 km on them since they have been done,I am wondering about the rods.Engine has 96,000 km or about 60,000 miles and about 50 track days.I shift at 6,300-6,500 rpm.
fitz
fitz
11-30-2018, 07:17 AM
#11
Safety Car
Member Since: Dec 1999
Location: Virginia Beach, VA & Port Charlotte, FL (snowbird)
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Obviously, there are only two places from where the Ti in your wear metals can come: connecting rods and intake valves.
Being that your iron numbers have actually gone down and if the Ti was coming from valve stems you'd, also, have high iron (from worn guides), I doubt the Ti is coming from valves. It's likely you have a developing problem with connecting rod high end side wear.
I'd go another couple thousand miles and sample the oil, again, but I also think that 96,000 on an engine that is tracked frequently, it's probably time for a rebuild.
Being that your iron numbers have actually gone down and if the Ti was coming from valve stems you'd, also, have high iron (from worn guides), I doubt the Ti is coming from valves. It's likely you have a developing problem with connecting rod high end side wear.
I'd go another couple thousand miles and sample the oil, again, but I also think that 96,000 on an engine that is tracked frequently, it's probably time for a rebuild.
11-30-2018, 11:13 AM
#12
Burning Brakes
This is what I was thinking. I had 0 titanium on my first oil change and 8 right after a full head/cam build with AHP heads, titanium retainers. It has slowly trended down to 4 since then 3 oil changes later. I have kept a very close eye on oil pressures. It runs perfect and oil pressures have remained exactly the same at temps of 185, 200, and 215. Good luck to the OP that it's nothing serious.
11-30-2018, 03:27 PM
#13
Team Owner
11-30-2018, 04:37 PM
#14
11-30-2018, 05:58 PM
#15
Le Mans Master
I stumbled on this site - https://www.supertechperformance.com...m-valves-tp123 these guys seem to understand coating Ti - I wonder if they would attempt to recoat factory rods? I may call and ask (unless someone else already has).
Last edited by Dan_the_C5_Man; 12-01-2018 at 02:56 AM.
12-01-2018, 01:59 PM
#17
Pro Mechanic
Pro Mechanic
The OP did not make mention of Ti retainers so I didn't address that, but you're right "Undy", wear of Ti retainers would obviously cause a high Ti reading on wear metals.
12-01-2018, 03:27 PM
#19
Safety Car
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AHP, correct me if I'm wrong.
12-01-2018, 04:53 PM
#20
Supporting Vendor
Member Since: Sep 2013
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Fitz I got your email and will shoot you a reply shortly sir.
https://www.americanheritageperformance.com/