What shims to use with the 918 springs?
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From: new england
Re: What shims to use with the 918 springs? They are designed to be used with stock retainers and seats, i am installing #915 on a set of ls1 heads and they are checking a little low on pressure, so i would check installed heights of valves, and then see what spring pressures are at that installed height. If you dont have a spring testing tool have machine shop check them, this would be important if spring your using is only just enough for the cam and rpm your going to use.I have found many springs check lower pressure than they are rated at, many times it is still tolerable, depends what you are doing. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Staging Lane
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From: bay area, CA
Re: What shims to use with the 918 springs? what shims are you goin to use with the 918's? i am gettin ready to order a cam with those springs and a buddy told me that when we install it we'll check the spring installed height and if it was off then we would use shims to correct it. Also, what is the usual installed height of the 918's?
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From: Humble,Tx
Re: What shims to use with the 918 springs? Ken,
I am using 918's on a set of stock LS1 heads and have had no trouble at all with valve float. We used the stock shims. What cam are you going with?
Steve <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
<small>[ March 21, 2002, 01:37 PM: Message edited by: steve350 ]</small>
I am using 918's on a set of stock LS1 heads and have had no trouble at all with valve float. We used the stock shims. What cam are you going with?
Steve <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
<small>[ March 21, 2002, 01:37 PM: Message edited by: steve350 ]</small>
Staging Lane
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From: Pittsburg, Kali
Re: What shims to use with the 918 springs? steve350, are you using the stock retainers with the 918's? BTW, BAD *** #'s
<small>[ March 21, 2002, 02:53 PM: Message edited by: SidewayZ-28 ]</small>
<small>[ March 21, 2002, 02:53 PM: Message edited by: SidewayZ-28 ]</small>
Staging Lane
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From: bay area, CA
Re: What shims to use with the 918 springs? is there a preferred tool that i should get to check installed spring height? ive tried to look for diff. ones, but all i ever find is a small telescoping one that u install in place of the spring and then measure height. basically its this: micrometer
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From: new england
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by TimZ28:
<strong>Why mess with the 915s? There really is no reason to not use the 918s considering the effort it takes to swap them out.
Tim</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Tim these 915's are going on a supercharged, mild cammed, stock rev limit, ls1. Extra spring pressure(if not needed) only wears guides and valve job out, doesnt help power, and can make valvetrain noisier. none one of these are good things. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
<strong>Why mess with the 915s? There really is no reason to not use the 918s considering the effort it takes to swap them out.
Tim</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Tim these 915's are going on a supercharged, mild cammed, stock rev limit, ls1. Extra spring pressure(if not needed) only wears guides and valve job out, doesnt help power, and can make valvetrain noisier. none one of these are good things. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
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From: new england
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by geniusjester:
<strong>is there a preferred tool that i should get to check installed spring height? ive tried to look for diff. ones, but all i ever find is a small telescoping one that u install in place of the spring and then measure height. basically its this: micrometer</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The micrometer style i have is too big to work with stock Ls1 retainer size, i would use telescoping snap gauge to check them with a outside mike. Hope that helps.
<strong>is there a preferred tool that i should get to check installed spring height? ive tried to look for diff. ones, but all i ever find is a small telescoping one that u install in place of the spring and then measure height. basically its this: micrometer</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The micrometer style i have is too big to work with stock Ls1 retainer size, i would use telescoping snap gauge to check them with a outside mike. Hope that helps.
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From: new england
Re: What shims to use with the 918 springs? I guess you can use those style if you measure register thickness on mike, and subtract that # from readings on mike itself.I would get #4929 it should have more usefullness than the other. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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From: Houston
Re: What shims to use with the 918 springs? I'm going to be using the MMS 224 V2 cam.
I have a set of 2002 Zo6 springs but I was told they will not handle the fast ramps of the 224
I called MMS they qiouted me 380.00 for a set of springs,retainers and shim kit.
If I can use the stock shims I will do it.
I'll just buy the retainers and the 918s and be happy.
WDYT?
Ken
I have a set of 2002 Zo6 springs but I was told they will not handle the fast ramps of the 224
I called MMS they qiouted me 380.00 for a set of springs,retainers and shim kit.
If I can use the stock shims I will do it.
I'll just buy the retainers and the 918s and be happy.
WDYT?
Ken
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From: new england
Re: What shims to use with the 918 springs? Ken, i will just tell you what im doing and you decide.I'm using 918 springs with stock retainers and seats, the retainers are light and steel(strong).I wont spend money on titanium at this spring pressure and rpm range.I do reccomend good pushrods though, BTW i am installing MMS 229 cam soon. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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From: Houston
Re: What shims to use with the 918 springs? Thats one thing I always wondered....
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken
<small>[ March 21, 2002, 08:55 PM: Message edited by: Ken ]</small>
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken
<small>[ March 21, 2002, 08:55 PM: Message edited by: Ken ]</small>
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From: bay area, CA
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong>I guess you can use those style if you measure register thickness on mike, and subtract that # from readings on mike itself.I would get #4929 it should have more usefullness than the other. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">sorry..im still tryin to figure this all out..but what "mike" are you talkin about?
<strong>I guess you can use those style if you measure register thickness on mike, and subtract that # from readings on mike itself.I would get #4929 it should have more usefullness than the other. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">sorry..im still tryin to figure this all out..but what "mike" are you talkin about?
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From: new england
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by geniusjester:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong>I guess you can use those style if you measure register thickness on mike, and subtract that # from readings on mike itself.I would get #4929 it should have more usefullness than the other. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">sorry..im still tryin to figure this all out..but what "mike" are you talkin about?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The mike #4929 that genius Gesture has a superlink to on his reply above. I think Comp makes one also thru Powerhouse Products.
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong>I guess you can use those style if you measure register thickness on mike, and subtract that # from readings on mike itself.I would get #4929 it should have more usefullness than the other. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">sorry..im still tryin to figure this all out..but what "mike" are you talkin about?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The mike #4929 that genius Gesture has a superlink to on his reply above. I think Comp makes one also thru Powerhouse Products.
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From: new england
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ken:
<strong>Thats one thing I always wondered....
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">2001 ZO6 doesnt have titanium retainers and it turns those rpm from GM. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
<strong>Thats one thing I always wondered....
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">2001 ZO6 doesnt have titanium retainers and it turns those rpm from GM. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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From: Houston
Re: What shims to use with the 918 springs? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ken:
<strong>Thats one thing I always wondered....
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">2001 ZO6 doesnt have titanium retainers and it turns those rpm from GM. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thats exactly what I thought.
<img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Ken
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ken:
<strong>Thats one thing I always wondered....
Are titanuim retainers worth it?
BTW I'm only turning 6600 rev limit.
Ken</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">2001 ZO6 doesnt have titanium retainers and it turns those rpm from GM. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Thats exactly what I thought.
<img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Ken
