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How much revs does the stock valve springs support?

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Old Feb 17, 2003 | 02:20 PM
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Euro98ITR's Avatar
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Default What are the maximum revs the stock valve springs support?

The stock revlimiter is @ 8600RPM . By using a Kenji's P28 and rasing the revlimiter to 9100RPM, will this harm the engine? Is a replacement of the stock valve springs recommended?


[Modified by SF-ITR, 2:36 PM 2/18/2003]
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Old Feb 17, 2003 | 02:26 PM
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Default Re: How much revs does the stock valve springs support? (SF-ITR)

you should be ok at 9100
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Old Feb 17, 2003 | 02:27 PM
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Default Re: How much revs does the stock valve springs support? (SF-ITR)

Should be OK with OEM cams, however any time you elevate the rpm range in which you operate the engine you will accelerate engine wear to some degree.
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Old Feb 17, 2003 | 02:54 PM
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Default Re: How much revs does the stock valve springs support? (MK Ultra)

Should be OK with OEM cams, however any time you elevate the rpm range in which you operate the engine you will accelerate engine wear to some degree.
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Old Feb 18, 2003 | 04:01 AM
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Default Re: How much revs does the stock valve springs support? (Hugh Bowie)

Should be OK with OEM cams, however any time you elevate the rpm range in which you operate the engine you will accelerate engine wear to some degree.

What do u mean by engine wear to some degree?


[Modified by SF-ITR, 2:27 PM 2/18/2003]
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Old Feb 18, 2003 | 08:52 AM
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Default Re: How much revs does the stock valve springs support? (SF-ITR)

9100
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Old Feb 18, 2003 | 09:01 AM
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Default Re: How much revs does the stock valve springs support? (SF-ITR)

I think he means an engine that revs to 9100rpm will wear faster than an engine that revs to 8400rpm. Higher rpm's = more heat, friction, opportunity to damage parts.
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Old Feb 18, 2003 | 10:16 AM
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Default Re: How much revs does the stock valve springs support? (Batoutahell)

Yep. basically your engine will only last to 200,000miles instead of 500,000miles.
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