Thread: 1.8 Rockers, can you use them with stock springs?

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  1. #1 1.8 Rockers, can you use them with stock springs? 
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    I am curious about using stock heads with a 1.8 pedestal rocker and stock valve springs.

    Does anybody experience valve float? The car has 112K miles on it as we speak.

    Thanks.

    -Rob
    2002 Regal GS - MPS 3.5" Pulley, FWI, 180* Thermostat, SLP Ceramic Headers, SLP 3" Catted Downpipe, SLP PowerFlo 2.5" Dual Catback, Poly Upper Engine Mounts, 12" Brake Upgrade & HPTune.
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  2. #2 Re: 1.8 Rockers, can you use them with stock springs? 
    GTP Level Member QwikGT's Avatar
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    My 1.8 roller rockers are on stock springs and i have 40K on my motor, my L36 had 68k with ZZP ER rockers and that was on stock springs too. you should be fine
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  3. #3 Re: 1.8 Rockers, can you use them with stock springs? 
    GrandPrix Junkie CrazyGuy03's Avatar
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    IF you want to do it right, upgrade the springs
    2003 Buick Regal GSX lots of mods - click here to see latest build - http://www.grandprixforums.net/threa...ld-for-the-gsx

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  4. #4 Re: 1.8 Rockers, can you use them with stock springs? 
    GTP Level Member biggt's Avatar
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    Quote Originally Posted by QwikGT View Post
    My 1.8 roller rockers are on stock springs and i have 40K on my motor, my L36 had 68k with ZZP ER rockers and that was on stock springs too. you should be fine
    Quote Originally Posted by crazyguy03 View Post
    IF you want to do it right, upgrade the springs
    dont you have more chance of having ''valve float'' with stock springs?
    02 SilverMist GT L67 SWAPPED
    Quote Originally Posted by RedDawnGXP View Post
    Yeah plus he has a lot of weight reduction with the clear corner lights.
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  5. #5 Re: 1.8 Rockers, can you use them with stock springs? 
    GTP Level Member QwikGT's Avatar
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    so then i've been doing it wrong for 6 years?
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  6. #6 Re: 1.8 Rockers, can you use them with stock springs? 
    GTP Level Member QwikGT's Avatar
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    3800 guys like to reinvent the wheel a million times, ive never had said valve float, my m90 never valve floated and my turbo doesn't float. changing the springs turns into the timing chain dampner to wear more, so why cause problems? the OP is gonna do what he wants, ive had my car for 6 years with 3 different setups and i never had a valve float issue
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  7. #7 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    How do you figure that you get timing chain tensioner wear with upping valve sping pressures?
    Last edited by TheOtherNick; 02-26-2012 at 11:35 AM. Reason: keep it clean
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  8. #8  
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    L76 springs. Slightly more pressure but still very mild.
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  9. #9 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    Same pressures and same rate.
    Master Certified Automobile Technician
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  10. #10 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    L67
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  11. #11 Re: 1.8 Rockers, can you use them with stock springs? 
    Donating Users gtpsleeper's Avatar
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    I have 1.84s and stock springs and have for almost 4 years now... they do just fine...

    you will be more than fine as long as you dont up your shift points too high...
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  12. #12 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    Just think about it...you have 112k on those springs and we all know that heat deteriates spring tension, what do you think?
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  13. #13 Re: 1.8 Rockers, can you use them with stock springs? 
    GTP Level Member QwikGT's Avatar
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    Because of the higher spring rate you're wearing out the tensioner.
    Last edited by TheOtherNick; 02-26-2012 at 11:38 AM. Reason: Keep it clean.
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  14. #14 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    There is no added pressure to the tensioner!!!
    Master Certified Automobile Technician
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  15. #15 Re: 1.8 Rockers, can you use them with stock springs? 
    GTX Level Member OH4CompG's Avatar
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    Quote Originally Posted by Dragon1972 View Post
    There is no added pressure to the tensioner!!!

    So...... you've inspected timing chain dampeners after using 90# springs? It's not like this is the first time this has come up. Many individuals and vendors have noted more wear on the timing chain dampener due to springs with higher spring rate than stock. That's why a lot of people chose 105# springs over the 90's. 90's have stockish seat pressure but higher spring rate. 105's have stockish spring rate but higher seat pressure.
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  16. #16 Re: 1.8 Rockers, can you use them with stock springs? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    You can run 1.8 and 1.9 ratio rocker arms with complerely stock heads until your shift points reach around 6000 RPMS. That is the ballpark for where valve float can happen.

    Quote Originally Posted by ZZPerformance.com
    These work with all stock or aftermarket pushrods, lifters, springs, retainers. They will not work with aftermarket cams. Aftermarket springs are recommended for shift points higher than 6000.
    ZZPerformance - 1.9 Ratio Modified Rockers #ZZ-19MR
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
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  17. #17 Re: 1.8 Rockers, can you use them with stock springs? 
    The mod from over yonder TheOtherNick's Avatar
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    Keep it clean in here. Thanks GPF staff.
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  18. #18 Re: 1.8 Rockers, can you use them with stock springs? 
    SE Level Member Dragon1972's Avatar
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    Are you a moderator or the government?
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  19. #19 Re: 1.8 Rockers, can you use them with stock springs? 
    Donating Users gtpsleeper's Avatar
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    damn... didn see the posts before the editing... I miss everything
    "My car is a racecar like Planet Fitness is a gym...."

    proud mark VIII victim!!! suck it...
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  20. #20  
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    Quote Originally Posted by Dragon1972 View Post
    Are you a moderator or the government?
    What do you mean by this comment?

    Quote Originally Posted by Dragon1972 View Post
    There is no added pressure to the tensioner!!!
    There is a direct correlation between valve spring pressure and timing chain tensioner wear.
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