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GSC S2 cam with oem retainers?

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Old Nov 26, 2018, 09:51 PM
  #16  
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Originally Posted by SW20Mike
I cracked 3 or so retainers using MAP beehive springs and oem retainers. Luckily I caught it in time and didn't drop a valve, promptly replaced with titanium retainers. Change them while you're in there, please.
Necrobump. What cams were you running when you cracked OE retainers? You're the only instance I've been able to find of this. @SW20Mike
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Old Nov 27, 2018, 12:31 PM
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I'm running GSC springs and stock retainers. I don't need the lighter weight of the Ti retainers ,though. OEM will last forever, anyway.
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Old Nov 27, 2018, 12:51 PM
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Stock is lighter than the Ti ones. Ti is just stronger and harder. If that's $100 I don't need to spend then that's money I can throw at my machinist and consumables.
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Old Nov 27, 2018, 12:52 PM
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$100 seems cheap compared to even an "off" chance of dropping a valve... if a retainer completely fails.
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Old Nov 27, 2018, 12:54 PM
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Originally Posted by letsgetthisdone
$100 seems cheap compared to even an "off" chance of dropping a valve... if a retainer completely fails.
And that's my entire reason for considering them. Just trying to compile as much data about stock retainers as I can before making a decision.
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Old Nov 27, 2018, 01:14 PM
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Titanium retainers have a drawback too. They sometimes fuse with the keepers. You will have a fun time pulling it apart when that time ever comes.
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Old Nov 27, 2018, 01:19 PM
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I've always been.told OEM lasts longer, so.I.kept them.
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Old Nov 27, 2018, 03:15 PM
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Originally Posted by 2006EvoIXer
Titanium retainers have a drawback too. They sometimes fuse with the keepers. You will have a fun time pulling it apart when that time ever comes.
That's not even something to consider. I'd much rather deal with that than a dropped valve. And I seriously doubt it's nothing a real pneumatic valve spring compressor tool wouldn't be able to handle.

Originally Posted by kaj
I've always been.told OEM lasts longer, so.I.kept them.
That may hold true in a forged vs OEM piston or Bronze valve guide vs OEM steel/iron guide debate. But titanium is 100% without a doubt stronger and has a much longer fatigue life than aluminum.
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Old Nov 27, 2018, 03:30 PM
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Ive been beating on the GSC springs and OEM retainers with S1 cams for a few years. Stock engine banging on 7800rpms a ton, 2.3l banging on 8k wayy to much.. until it broke the 100mm crank. Now 2.2l but I rarely hit the rev limiter set to 8k. Will be bumping that to maybe 8500 this year, we'll see how adventurous I feel. But the caps have never been a worry of mine.
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Old Nov 27, 2018, 03:52 PM
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Originally Posted by Dallas J
Ive been beating on the GSC springs and OEM retainers with S1 cams for a few years. Stock engine banging on 7800rpms a ton, 2.3l banging on 8k wayy to much.. until it broke the 100mm crank. Now 2.2l but I rarely hit the rev limiter set to 8k. Will be bumping that to maybe 8500 this year, we'll see how adventurous I feel. But the caps have never been a worry of mine.
same here.
I only "upgrade" parts of I need to.

And I've learned that whenever one person tells me one thing and someone else tells me the opposite ,it usually means either way works.
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Old Dec 2, 2018, 12:33 PM
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Originally Posted by ayoustin
Necrobump. What cams were you running when you cracked OE retainers? You're the only instance I've been able to find of this. @SW20Mike
GSC S2 cams. I was told by everyone the OE retainers would be fine, and maybe they are and I'm just an extraordinary circumstance.
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Old Dec 2, 2018, 06:09 PM
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Originally Posted by SW20Mike
GSC S2 cams. I was told by everyone the OE retainers would be fine, and maybe they are and I'm just an extraordinary circumstance.
Hey Mike. Heres a clip from the GSC website. There maybe more to it than GSC trying to selling more parts, but maybe their research has proven the TI retainers are really needed (im running their full recommendation on my S2's)





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Old Dec 2, 2018, 08:20 PM
  #28  
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Originally Posted by MinusPrevious
Hey Mike. Heres a clip from the GSC website. There maybe more to it than GSC trying to selling more parts, but maybe their research has proven the TI retainers are really needed (im running their full recommendation on my S2's)

It says springs or springs and retainers, which confirms what we've all been saying. Good info!
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Old Dec 4, 2018, 06:02 PM
  #29  
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Originally Posted by kaj
It says springs or springs and retainers, which confirms what we've all been saying. Good info!
I forgot to mention I was also running MAP beehive springs, so possibly be ok with OEM springs with OEM retainers. However, I'd recommend just swapping it all out plus GSC valve stem seals at the same time.
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Old Dec 4, 2018, 06:17 PM
  #30  
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OEM springs + S2 seems sketch. I'm not sure I'd feel comfortable with that.
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