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Old 01-16-2018, 08:22 PM   #99
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Did you do any further work on the head porting or was that from CNC alone?

Good catch on doing this now with that cam.
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Old 01-16-2018, 08:52 PM   #100
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Going on untouched. Im refraining to even take a peak lol. I originally was going to order as cast and port them myself but dont have the time.
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Old 01-16-2018, 09:06 PM   #101
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Yeah.. got your hand full for sure.. Looking good.
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Old 01-17-2018, 12:07 AM   #102
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Quote:
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TSP has their own grinder. In house cams.
TSP grinds their own cams but they don’t make the Cores!
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Old 01-17-2018, 05:40 AM   #103
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I wonder who does make their own cores? Crower maybe?
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Old 01-17-2018, 07:58 AM   #104
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I wonder who does make their own cores? Crower maybe?
Howards does don't they?
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Old 01-17-2018, 08:21 AM   #105
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Its been using Mobil 1 since new. Both of my oil samples have gotten rave reviews from Blackstone.
Not knowing exactly how Blackstone does their analysis, I can't help but wonder why they did not see any breakdown of the cam material in the oil sample.

As for the cam manufacture they need to do a Spectra analysis of the metal used to make their cams if they haven't done so.

Looks like you are doing this rebuild at just the right time.
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Old 01-17-2018, 09:02 AM   #106
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TSP cams are ground on a Callies Core. Standard cams are 5150 cores with an optional 8620 Hardened core.

And to answer your question the cam core you are seeing is in fact a classic Comp Cam core having a lobe failure.
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Old 01-17-2018, 09:51 AM   #107
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I believe Cam Motion does their own but could not confirm on their web site...anybody?

btw - in the lobe pic Bo posted it is interesting to note the surface failure was just outside of where the lifter ran...he saw no damage on the lifter roller...proving the heat treat was insufficient to stop the metal from compressing slightly...

Bo you state your stickin with the stock intake "fer now"...meaning sumthin better on the horizon...many like Billy go with the Victor...I was lookin at the Holley mid rise single plain...still shows as a 3 to 7k intake...I'm thinkin it might work better for mostly street driven...just spit ballin while drinken my coffee...l8tr
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Old 01-17-2018, 10:07 AM   #108
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Super Victor
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Old 01-17-2018, 10:28 AM   #109
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The lobe damage is on the edge of the rollers path. Follows it exactly.
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Old 01-17-2018, 01:32 PM   #110
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Quote:
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I have not seen any other manufacturers have failures like this but Comp. They seem to have some problems with heat treating or flawed cam cores. Does TSP use them also?
What kinda concerns me, don't many of the custom grinds from specialty shops use cores from Comp?
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Old 01-17-2018, 02:07 PM   #111
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What kinda concerns me, don't many of the custom grinds from specialty shops use cores from Comp?
Id say about 90% of shops use comp. BTR TICK LJMS GPI etc...
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Old 01-17-2018, 02:09 PM   #112
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Super Victor
heh, heh..knew I could tease it outta ya...lol...that makes 3 for 3...I really need to go to Vegas LULZ...
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