Thread: XPZ Cam 130 lb spring longevity as daily?

Results 1 to 18 of 18
  1. #1 XPZ Cam 130 lb spring longevity as daily? 
    GT Level Member RegalGS98s's Avatar
    Join Date
    Oct 2010
    Location
    NJ
    Posts
    369
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    I have a XPZ Cam with the 3/8 pushrods I'm going to run in my 98 Regal. Currently my heads have 90lb LS6 springs on heads I ported. Will the 90lb springs work at all without destroying something and just give me a performance loss or are the 130lb springs required? If I run the 130lb springs, how long should I expect they'll last before having to replace them so I don't end up with a broken spring. The Regal will be daily driven. I'll also be using the stock rockers with the JP Performance Double Roller chain. If I need the 130lb springs, which brand should I get? I know there were some failures on one the brands 105 springs.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts
    Reply With Quote  
     

  2. #2 Re: XPZ Cam 130 lb spring longevity as daily? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    you need 130s for that cam.

    they'll last.

    get crow
    Reply With Quote  
     

  3. #3 Re: XPZ Cam 130 lb spring longevity as daily? 
    GT Level Member RegalGS98s's Avatar
    Join Date
    Oct 2010
    Location
    NJ
    Posts
    369
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Do you know how long or many miles the crow cam 130 lbs have lasted in our cars? Anyone get 20k or 50k yet running them with an XPZ or similar cam?
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts
    Reply With Quote  
     

  4. #4 Re: XPZ Cam 130 lb spring longevity as daily? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    dd'ing them. im not sure, if you arent always ragging on it, with the double roller im sure you could go 50k
    Reply With Quote  
     

  5. #5 Re: XPZ Cam 130 lb spring longevity as daily? 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    I'm surprised no one suggested reading up on the JP failures. A couple years back it was an issue, not sure if it still is etc. May have been more the deflection of people not machining the crank gear..but there was talk about Jp vs rollmaster and definately ensure the crank gear is right.

    130# Crowe should be fine to daily. Doesn't the XPZ require different pushrods and Stage 3 heads for clearance?
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  6. #6 Re: XPZ Cam 130 lb spring longevity as daily? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    he has the 3/8...OR option i have no clue on
    Reply With Quote  
     

  7. #7 Re: XPZ Cam 130 lb spring longevity as daily? 
    Turbo is the way to go. BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    W Spfld
    Posts
    26,815
    Thanks (Received)
    53
    Likes (Received)
    90
    Dislikes (Received)
    1
    I have those sitting in my garage on Bill Stewarts XPZ.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
    Reply With Quote  
     

  8. #8 Re: XPZ Cam 130 lb spring longevity as daily? 
    GT Level Member RegalGS98s's Avatar
    Join Date
    Oct 2010
    Location
    NJ
    Posts
    369
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by BillBoost37 View Post
    I'm surprised no one suggested reading up on the JP failures. A couple years back it was an issue, not sure if it still is etc. May have been more the deflection of people not machining the crank gear..but there was talk about Jp vs rollmaster and definately ensure the crank gear is right.

    130# Crowe should be fine to daily. Doesn't the XPZ require different pushrods and Stage 3 heads for clearance?
    The JP failures I read a while ago were 99% install error, but heard about the crank gear also. I think it was Blueguy91 that said it was mostly install errors. Somewhere on here I read the JP sets were supposed to have been fixed. I assume you mean the crank gear doesn't line up with the other gear so it had to be machined so the chain lines up?

    I have the 3/8 pushrods (six of each 7.05 and 7.10 I think). The heads they noted port and polished required. Not sure what you mean about clearance.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts
    Reply With Quote  
     

  9. #9 Re: XPZ Cam 130 lb spring longevity as daily? 
    I live here. MoarkatsINmuhtrailer's Avatar
    Join Date
    Apr 2010
    Location
    Ohio
    Posts
    5,150
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    the chamfer on the gear needs machined to match that of the stock gear..nothing a minute on a lathe doesn't fix
    Reply With Quote  
     

  10. #10 Re: XPZ Cam 130 lb spring longevity as daily? 
    GrandPrix Junkie PurpleGuy's Avatar
    Join Date
    Aug 2010
    Location
    Never Never Land
    Posts
    4,864
    Thanks (Received)
    1
    Likes (Received)
    10
    Dislikes (Received)
    1
    My heads have 130lb crows. Previous owner said he's put 20K on them. I see no issues with them. He also had a cam a little bigger than the XPZ.
    And no go on the JP. Get a rollmaster
    2001 Regal GS, PLOG, 3" DP, 1.9's/L76 springs. 21* of timing on a 3.4"
    Reply With Quote  
     

  11. #11 Re: XPZ Cam 130 lb spring longevity as daily? 
    SE Level Member deangtp's Avatar
    Join Date
    Dec 2007
    Location
    Kansas City, MO
    Posts
    132
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    IM Daily driving an XPZ/130 car. Only about 2k miles on it though. I had a JP with an XP cam and 105's. That thing stretched out big time. Im now rolling with a rollmaster.
    Reply With Quote  
     

  12. #12 Re: XPZ Cam 130 lb spring longevity as daily? 
    GrandPrix Junkie PurpleGuy's Avatar
    Join Date
    Aug 2010
    Location
    Never Never Land
    Posts
    4,864
    Thanks (Received)
    1
    Likes (Received)
    10
    Dislikes (Received)
    1
    Just an FYI too guys. When your rollmaster gets stretched, Cloyes makes a chain that works on the rollmaster gears. I forget the PN but I'll dig it up.
    2001 Regal GS, PLOG, 3" DP, 1.9's/L76 springs. 21* of timing on a 3.4"
    Reply With Quote  
     

  13. #13 Re: XPZ Cam 130 lb spring longevity as daily? 
    GT Level Member RegalGS98s's Avatar
    Join Date
    Oct 2010
    Location
    NJ
    Posts
    369
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by deangtp View Post
    IM Daily driving an XPZ/130 car. Only about 2k miles on it though. I had a JP with an XP cam and 105's. That thing stretched out big time. Im now rolling with a rollmaster.
    Was it a single or dual JP chain? How many miles did you have on it with the XP and 105's? Do you stomp on it often? And so, are you saying the JP chain itself is weaker than the rollmaster? There is a bit of price difference between the 2, but I assumed it was because of the past failures with the JP's they had to make themselves more attractive. I currently own a single rollmaster with about 5 minutes of run time and a brand new double JP.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts
    Reply With Quote  
     

  14. #14 Re: XPZ Cam 130 lb spring longevity as daily? 
    GrandPrix Junkie PurpleGuy's Avatar
    Join Date
    Aug 2010
    Location
    Never Never Land
    Posts
    4,864
    Thanks (Received)
    1
    Likes (Received)
    10
    Dislikes (Received)
    1
    The JP chains suck. They stretch fast and some have snapped
    2001 Regal GS, PLOG, 3" DP, 1.9's/L76 springs. 21* of timing on a 3.4"
    Reply With Quote  
     

  15. #15 Re: XPZ Cam 130 lb spring longevity as daily? 
    GTP Level Member GTP89's Avatar
    Join Date
    Sep 2010
    Location
    Buena Park Ca
    Posts
    756
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Basically what it comes down to is sell the jp if you can and go with a double roller i have a xpz build going and went with that you want to run as little of a risk as possible with any setup you build double roller is the way to go and with the springs 130 and crows like they stated above.
    Reply With Quote  
     

  16. #16 Re: XPZ Cam 130 lb spring longevity as daily? 
    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
    The JP failures were due to the wrong gear being used for the wrong chain... they just did not mesh correctly and it was obvoius.... I have used the old JP chains without problems for tons of miles.

    A stock chain would be a fine choice behind the XPZ and 130s too... they are highly underrated for some reason.
    Reply With Quote  
     

  17. #17 Re: XPZ Cam 130 lb spring longevity as daily? 
    GT Level Member RegalGS98s's Avatar
    Join Date
    Oct 2010
    Location
    NJ
    Posts
    369
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by darkhorizon View Post
    The JP failures were due to the wrong gear being used for the wrong chain... they just did not mesh correctly and it was obvoius.... I have used the old JP chains without problems for tons of miles. A stock chain would be a fine choice behind the XPZ and 130s too... they are highly underrated for some reason.
    Does the chamfer on the gear need to be machined to match that of the stock gear still then on the JP double set? I bought my JP double roller set at the beginning of this year so it's not that old. Still in the box. I've heard of people running the stock chain with 130s on here too. The JP Double should still be stronger and better than the stock though right? Think Blueguy91 on here said the Rollmaster failed on him so seems to be issues with both sets. Don't want to buy another set since I have the JP double, but will if I have to.
    SMGPFC #0330 - 3.25, Intercooled, Custom Tune, 1.84rr, LS6 Springs, roller timing chain, SLP Headers, Borla Exhaust, built Trans, B&M Trans Cooler, home cut poly uppers, gapless rings, N* TB, Ported heads.
    Soontocome: CAM?, Custom modified M112, home poured Poly Engine and Trans mounts
    Reply With Quote  
     

  18. #18  
    GTX Level Member crbquist's Avatar
    Join Date
    Mar 2010
    Location
    Massachusetts
    Posts
    689
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Quote Originally Posted by darkhorizon View Post
    The JP failures were due to the wrong gear being used for the wrong chain... they just did not mesh correctly and it was obvoius.... I have used the old JP chains without problems for tons of miles.

    A stock chain would be a fine choice behind the XPZ and 130s too... they are highly underrated for some reason.
    I wouldn't trust a stock chain with that cam and 130s...
    01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...
    Reply With Quote  
     

Similar Threads

  1. 1.9 Rockers longevity
    By MBruneaux in forum 3.8L V6 Naturally Aspirated (L36)(L26)
    Replies: 4
    Last Post: 02-17-2012, 03:42 PM
  2. Daily Drivers?
    By Taz Magister in forum General Tech Discussion
    Replies: 19
    Last Post: 07-08-2011, 12:19 PM
  3. My daily conversation.
    By ZR1Vette09 in forum The Rant Forum
    Replies: 13
    Last Post: 03-21-2011, 10:03 PM
  4. Daily B!tch!ng : RANT AWAY!
    By singularity in forum The Rant Forum
    Replies: 2
    Last Post: 09-06-2009, 02:52 PM
  5. gs-t for a daily driver
    By turbotooslow in forum Off Topic Discussion
    Replies: 11
    Last Post: 10-04-2008, 04:11 AM
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
  •