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918 valvesprings prone to breaking??

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Old Jul 27, 2007 | 01:05 PM
  #41  
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Originally Posted by Yeahdoug
I'm sorry Steve I do not know how much the heavier valve will affect it. If you're using a .600 lift cam or less, you can tighten up your 918s to 1.750" if you experience any float with them at 1.800". If you have agressive lobes I'd suggest installing them at 1.750 right off the bat.
I guess I need to recheck the installed height when I get back to Hawaii. I will check my reciepts/paperwork and call the installer. I had timecerts installed at the same time.
My cam has XE lobes from Comp Cams which are a little agressive, but , the lift is only 555.
Thanks again for the help.
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Old Aug 26, 2007 | 11:15 PM
  #42  
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Originally Posted by Matt @ SDPC
Realistically, they had issues on a few batches in '02, fixed the design and put the blue stripe on them. They were great for years. And now there are known issues on a few batches produced sometime last year.
I had a Comp cam with those springs installed by a shop last year August.
How in the world would I find out if I have one of these bad batches of springs?

thanks.
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Old Aug 27, 2007 | 08:42 AM
  #43  
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I'd recommend , if you're curious about it, just pulling your valve covers and looking to see if you have any broken springs.
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