| Engine and Transmission Discuss Engine, Transmission, and all other performance modifications here. |
03-24-2008, 11:25 AM
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#1
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Son of Satan
Join Date: Feb 2005
Location: MilesFromNowhere, Indiana
Posts: 4,981
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Dual springs question.
I have a question about the dual springs.
I have tried searching and cannot find the answer I want. 
With stock 241 heads on the LS1, what if anything would be required to run dual springs?
Sorry if that seems dumb, because it probably is. Thanks for any advice.
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03-24-2008, 12:12 PM
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#2
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Son of Satan
Join Date: Feb 2005
Location: MilesFromNowhere, Indiana
Posts: 4,981
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Re: Dual springs question.
I'm looking at these, FWIW.
https://www.patriot-performance.com/...7&bestseller=Y
EDIT: I called and these are what I need.
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Last edited by 666_speed; 03-24-2008 at 01:16 PM.
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03-24-2008, 02:40 PM
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#3
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AF Enthusiast
Join Date: Jul 2004
Location: why?
Posts: 1,985
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Re: Dual springs question.
Well, the ad says they are "drop in" springs, so you don't need anything more except for the tools to do the job
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03-24-2008, 02:47 PM
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#4
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Son of Satan
Join Date: Feb 2005
Location: MilesFromNowhere, Indiana
Posts: 4,981
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Re: Dual springs question.
Quote:
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Originally Posted by Morley
Well, the ad says they are "drop in" springs, so you don't need anything more except for the tools to do the job
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Thanks. I just called them and asked.
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03-26-2008, 02:06 PM
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#5
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AF -Advisor
Join Date: Feb 2004
Location: Chesterfield, Virginia
Posts: 2,171
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Re: Dual springs question.
Unless you're planning to rev it to the moon, there would be minimal benefit from changing the springs. The "beehive" (conical) springs in LSx engines are excellent to 7,000 RPM for stability, and a lower seat pressure than more conventional springs.
Based on the "numbers" in their advertisement, unless you've upgraded to a pretty serious cam, avoid them. Too much pressure and not necessary.
Jim
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03-31-2008, 12:42 PM
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#6
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Son of Satan
Join Date: Feb 2005
Location: MilesFromNowhere, Indiana
Posts: 4,981
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Re: Dual springs question.
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Originally Posted by MrPbody
Unless you're planning to rev it to the moon, there would be minimal benefit from changing the springs. The "beehive" (conical) springs in LSx engines are excellent to 7,000 RPM for stability, and a lower seat pressure than more conventional springs.
Based on the "numbers" in their advertisement, unless you've upgraded to a pretty serious cam, avoid them. Too much pressure and not necessary.
Jim
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It's a 233/239 .595/.603 112 cam. It's pretty large. Thanks.
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Last edited by 666_speed; 03-31-2008 at 01:44 PM.
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03-31-2008, 01:12 PM
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#7
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AF Enthusiast
Join Date: Feb 2004
Location: lubbock, Texas
Posts: 660
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Re: Dual springs question.
I would suggest new seats and seals but other than that they drop right in.
Quote:
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Originally Posted by MrPbody
Unless you're planning to rev it to the moon, there would be minimal benefit from changing the springs. The "beehive" (conical) springs in LSx engines are excellent to 7,000 RPM for stability, and a lower seat pressure than more conventional springs.
Based on the "numbers" in their advertisement, unless you've upgraded to a pretty serious cam, avoid them. Too much pressure and not necessary.
Jim
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I wouldnt run a 918 style spring to 7k very often.....for 1 they have had a few set backs and there have been a few batches of bad 918's sold.....if one of them hoes breaks then u can drop a valve.......If u run a dual spring then u dont have to worry about dropping the valve cause u got the back up spring in the middle incase the outside spring breaks or vice versa.....i woulda gone with duals springs the first time around but i got these 918's real cheap.
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R.I.P. Andy, A great guy and an even better friend.
2000 Z28 A4:
Patriot 226 cam, Comp 918's, Comp Ti retainers, NX 100 shot, Vig 3600 stall, Richmond 3.73's, 2.5in TD's w/ H-pipe & 1-chamber flowmasters, 160* stat, TSP Lid, K&N filter, MSD wires.
BADBOYRACING!!!
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03-31-2008, 01:37 PM
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#8
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Son of Satan
Join Date: Feb 2005
Location: MilesFromNowhere, Indiana
Posts: 4,981
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Re: Dual springs question.
I have new seats/seals. Came with the kit.
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03-31-2008, 01:50 PM
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#9
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AF Newbie
Join Date: Mar 2008
Location: Los angeles, California
Posts: 29
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Re: Dual springs question.
Quote:
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Originally Posted by 666_speed
It's a 233/239 .595/.603 112 cam. It's pretty large. Thanks.
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wow, that's a LOT of cam. good luck with everything.
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