Thread: YT 1.8 roller rockers on stock springs?

Results 1 to 12 of 12
  1. #1 YT 1.8 roller rockers on stock springs? 
    SE Level Member
    Join Date
    Jan 2013
    Location
    Australia
    Posts
    80
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    engine has 110.000 miles (~170.000km) on it

    yay or nay?
    Reply With Quote  
     

  2. #2 Re: YT 1.8 roller rockers on stock springs? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
    Join Date
    Dec 2007
    Location
    Omaha, NE
    Posts
    7,921
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Yay mate.

    ZZP's site even says their 1.9s "work with all stock or aftermarket pushrods, lifters, springs, retainers".
    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.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
    Reply With Quote  
     

  3. #3 Re: YT 1.8 roller rockers on stock springs? 
    GTP Level Member AjL227's Avatar
    Join Date
    Mar 2010
    Location
    IL
    Posts
    701
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I mean...I would get 90# or higher but that is just me.
    Cost of springs < cost of engine
    '04 CompG "WS6"
    '00 2.5RS "GM6"
    Reply With Quote  
     

  4. #4 Re: YT 1.8 roller rockers on stock springs? 
    SE Level Member
    Join Date
    Jan 2013
    Location
    Australia
    Posts
    80
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    cheers cobber

    to be honest ive never understood the whole "1.9 modded rockers are ok on stock springs, but YT rollers aren't" thing...
    The YT aluminium rockers are much lighter than the steel modded ones... so the spring has less resistance/inertia to work against, which would mean less chance of valve float with YT roller rockers, right?
    Reply With Quote  
     

  5. #5 Re: YT 1.8 roller rockers on stock springs? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
    Join Date
    Dec 2007
    Location
    Omaha, NE
    Posts
    7,921
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by Bio248 View Post
    roller rockers arent worth the gain.

    i ran modded 1.9s on stock springs forever and would recommend that if youre going the rocker route.
    Many have done 1.8s and 1.9s on stock springs without ever having issues.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
    Reply With Quote  
     

  6. #6 Re: YT 1.8 roller rockers on stock springs? 
    GT Level Member addzradd's Avatar
    Join Date
    Feb 2010
    Location
    Cleveland
    Posts
    396
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    You could, But I don't know why you would for the price you might as well while you are in there and have it all apart it's only another 15 minutes or so on the project.
    Reply With Quote  
     

  7. #7 Re: YT 1.8 roller rockers on stock springs? 
    GXP Level Member darkhorizon's Avatar
    Join Date
    Feb 2009
    Location
    flintnasty MI
    Posts
    2,596
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    1.8 rockers are no better than stock.. I ran them for years on a 18psi turbo setup without floating.
    Reply With Quote  
     

  8. #8 Re: YT 1.8 roller rockers on stock springs? 
    GTX Level Member Sudden's Avatar
    Join Date
    May 2009
    Location
    Slower, Lower Delaware
    Posts
    1,964
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I wouldn't recommend something because some have done it "without ever having issues."
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
    Reply With Quote  
     

  9. #9 Re: YT 1.8 roller rockers on stock springs? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
    Join Date
    Dec 2007
    Location
    Omaha, NE
    Posts
    7,921
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by Sudden View Post
    I wouldn't recommend something because some have done it "without ever having issues."
    First off, don't half ass quote me, I said many. You don't realize that rockers aren't a big deal. Without a cam in addition to rockers lift isn't changing much at all.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
    Reply With Quote  
     

  10. #10 Re: YT 1.8 roller rockers on stock springs? 
    GTX Level Member Sudden's Avatar
    Join Date
    May 2009
    Location
    Slower, Lower Delaware
    Posts
    1,964
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    ooh!, touchy. And I consider .080 a substantial increase in lift on a stock spring that already has many miles on it. It's not a cam but it can get you 20 HP. If you've ever broken a spring you can see the value of replacing them, plus the value of just having springs that do the job right.

    Quote Originally Posted by Explicit_Spade View Post
    First off, don't half ass quote me, I said many. You don't realize that rockers aren't a big deal. Without a cam in addition to rockers lift isn't changing much at all.
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
    Reply With Quote  
     

  11. #11 Re: YT 1.8 roller rockers on stock springs? 
    GXP Level Member GTPpower's Avatar
    Join Date
    May 2008
    Location
    Schuyler, NE
    Posts
    2,972
    Thanks (Received)
    8
    Likes (Received)
    23
    Dislikes (Received)
    0
    You aren't getting .080" extra lift by switching to 1.8 RR's.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
    Reply With Quote  
     

  12. #12 Re: YT 1.8 roller rockers on stock springs? 
    GTX Level Member Sudden's Avatar
    Join Date
    May 2009
    Location
    Slower, Lower Delaware
    Posts
    1,964
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    No, that would probably take 1.9s. But you are still pushing possibly fatigued springs faster and farther than they are used to.
    Quote Originally Posted by GTPpower View Post
    You aren't getting .080" extra lift by switching to 1.8 RR's.
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
    Reply With Quote  
     

Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •