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Springs for V.2

This is a discussion on Springs for V.2 within the Internal Engine forums, part of the LSx Technical Help Section category; I'm going to be installing a Torquer V.2 while the T/A is hibernating this winter and I had a question ...

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    In need of another LS1 00blacktransam112's Avatar
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    Springs for V.2

    I'm going to be installing a Torquer V.2 while the T/A is hibernating this winter and I had a question about valve springs. For those of you who dont know, the specs are 232/234 at 0.050" with .595/.598 lift. I will be running a 113 LSA with it as well. I was wondering what springs to get. Would I be fine running a set of 918's or should I step up to the PRC double springs. I dont beat the shit out of my car but I do drive it. Should I get the doubles for the added insurance and not really have to worry about breaking a spring? or will the 918's be enough?

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    cutting and welding mark21742's Avatar
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    hugger orange
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    yup, 918's will work fine, now they are rated over .600".... I think at .625"

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    In need of another LS1 00blacktransam112's Avatar
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    will they take the abuse and ask for more?

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    cutting and welding mark21742's Avatar
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    hugger orange
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    Quote Originally Posted by 00BlackTranny112 View Post
    will they take the abuse and ask for more?
    I'm upgrading to a bigger cam this weekend 238/242 .595/.595 112lsa and using my same 918's without any worries

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    SOM
    1998 T.A.

    You will just be changing springs sooner with 918's. Personally I would run a PAC 1218 or 1518 if you want a beehive. Also check install height and shim within .050 of coil bind for longer life and better valvetrain control.

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    NBM
    1998Z28

    PRC double springs for peace of mind if nothing else. Them double springs have saved many a pistons life!
    TSP 347 SB, TSP Stage 2.5 PRC LS6, TSP MS4, Performabuilt Stage 2 4L60E, Yank PT4000, 4.11s, Fast 90/90, FTRA Cold air intake+all the free mods, Dynatech Supermaxx Exaust System, DMH Cutouts, Hooker Catback/FTRA Tips. Tuned by RPM/Garner NC. 11.28@119

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    In need of another LS1 00blacktransam112's Avatar
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    thats what i was thinking PFM. I have no clue how to shim the springs and how to figure out coil bind and all of that other good shit that you just said. is there a writeup on it. I think i'm gonna run the doubles just for the piece of mind

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    SOM
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    http://www.chevyhiperformance.com/te...ide/index.html

    http://www.aa1car.com/library/perfor...valvetrain.htm

    From Popular Hotrodding:

    Another critical aspect to be aware of when contemplating a spring combination is the coil bind clearance. The coil bind height simply refers to the height at which the valvespring coils are stacked solid. This specification is listed for most springs in the manufacturer's catalog, or it can be directly measured. Clearly, this relates the spring's physical design to the installed height and the valve lift at which it will be used. As noted, the installed height minus the maximum lift at the valve gives the open height specification. This open spring height has to be above the coil bind height of the spring, plus a margin of safety. Allowing 0.060 inch to coil bind is generally considered a safe margin.

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    In need of another LS1 00blacktransam112's Avatar
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    o that makes sense. i never knew that before. thanks

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    I have PAC Double Springs.
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
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    In need of another LS1 00blacktransam112's Avatar
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    Quote Originally Posted by ls1camino View Post
    I have PAC Double Springs.
    how you like em?

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    I don't sell out! blackSS01's Avatar
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    918's here and no problems. They are .625 now and .598 won't be wearing them out that fast Rev to 6,800 rpms
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    SOM
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    Shimming to within .050 coil bind will really help valvetrain performance and extend spring life. If you just throw springs on it and you ar not close to coil bind the springs are not close to the rated seat pressure. This can lead to valve control issues and weird harmonics that shorten spring life drastically in some cases. Obviously the more aggressive the lobe the more critical this is.......

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    In need of another LS1 00blacktransam112's Avatar
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    You learn something new everyday

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    In need of another LS1 00blacktransam112's Avatar
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    BlackSS. do you have any dyno #'s?

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    formally 01 T/A 0verkill's Avatar
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    "Arrest Me Red"
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    i have the PRC double springs with this cam on a 112 lsa and like them i also have almost the same mods as blackss and put down 403 rwhp and 385 rwtq but i have not ported the maf and still have stock 241 heads

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    In need of another LS1 00blacktransam112's Avatar
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    cool. id be really happy with 400 at the wheels

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by 01 T/A View Post
    i have the PRC double springs with this cam on a 112 lsa and like them i also have almost the same mods as blackss and put down 403 rwhp and 385 rwtq but i have not ported the maf and still have stock 241 heads
    sweet, I too would love to be at the magic 400+rwhp mark with mine....238/242 p&p& milled 241s here

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    In need of another LS1 00blacktransam112's Avatar
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    mark, id be amazed if you dont make it with a bumpstick that size

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    cutting and welding mark21742's Avatar
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    Quote Originally Posted by 00blacktransam112 View Post
    mark, id be amazed if you dont make it with a bumpstick that size
    I fired it up last night for the first time and got the idle tuned in.....man it sounds like a nasty beast my fears of going too big on the cam are already gone

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