Thread: xp cam...whats springs?

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  1. #1 xp cam...whats springs? 
    SE Level Member 99blkgtp's Avatar
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    alright. im gonna be puttin my xp cam in a month or 2 and im seeing mixed things on either 105s or 130s. i emailed paul at prj since he will be the one tuning it and he said 130s with a double roller is recommended because he see's alot of cars with valve float issues. I just dont understand then why most people only run 105s and are fine. im just torn on which route to go.
    99 Gtp - L32, xp, ported heads 130#s, 2.5" IC, n*, ported gen3, SD headers, 3" exhaust, FWI, 160* stat, 103s, 2.8, E85, PRJ tune......Sold

    04 Comp G - Slammed on Bilstein Coilovers, few little mods here and there
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  2. #2 Re: xp cam...whats springs? 
    The Blue One blueguy's Avatar
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    Because the people who run 130's rev the crap outta their car. I run 130's and a double roller.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  3. #3 Re: xp cam...whats springs? 
    SE Level Member 99blkgtp's Avatar
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    ok well he said shifts would be around 6150-6250. does that call for 130s?
    99 Gtp - L32, xp, ported heads 130#s, 2.5" IC, n*, ported gen3, SD headers, 3" exhaust, FWI, 160* stat, 103s, 2.8, E85, PRJ tune......Sold

    04 Comp G - Slammed on Bilstein Coilovers, few little mods here and there
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  4. #4 Re: xp cam...whats springs? 
    Turbo is the way to go. BillBoost37's Avatar
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    It could.

    Personally I never brought mine up that high. 105's with an S1X/XP cam is fine until you wanna turn 800 horses in near zero gravity.

    heck..even when I did a ton of lift, heads and 130's, I didn't go over 6000 shift points. Our engines have enough oiling issues that I didn't want to risk the bearings not having enough oil. Kept the shifts reasonable, had more than enough power to pick on Vettes, Cobras etc (not the newest..but close) and only trans issues fo rme.
    I drink..so consider that when reading my posts.

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  5. #5 Re: xp cam...whats springs? 
    SE Level Member 99blkgtp's Avatar
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    thats what i was gonna tell him. to just keep the shifts around 6k and id just run 105s. im not really worried about the 2 hundred extra rpm lol. its my dd so id like it to not have any issues or break
    99 Gtp - L32, xp, ported heads 130#s, 2.5" IC, n*, ported gen3, SD headers, 3" exhaust, FWI, 160* stat, 103s, 2.8, E85, PRJ tune......Sold

    04 Comp G - Slammed on Bilstein Coilovers, few little mods here and there
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  6. #6 Re: xp cam...whats springs? 
    club of used to own a gp 99prixgt's Avatar
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    just get crow 105's. Your going to need modded retainers as well
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  7. #7 Re: xp cam...whats springs? 
    Donating Users nascartech's Avatar
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    Quote Originally Posted by 99prixgt View Post
    just get crow 105's. Your going to need modded retainers as well
    ^^^^^^^^^
    this
    01 GTP is3 cam 130 springs double roller 60lb injectors lq4 maf headers 4000 stall lowered
    sold 97 GTP stock
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  8. #8 Re: xp cam...whats springs? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    I ordered 130's for mine, because I like to be different.
    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
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  9. #9 Re: xp cam...whats springs? 
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    I use pbm 110# springs, modded retainers, and a stock timing set. No problems whatsoever. I'd rather change the worn dampner every 20,000 miles than change broken double rollers
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  10. #10 Re: xp cam...whats springs? 
    GT Level Member Wrongwayislost77's Avatar
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    Or shell out for a Rollmaster double and not worry about breaking it.
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  11. #11 Re: xp cam...whats springs? 
    DUI BABY Bio248's Avatar
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    with proper install, how many double rollers have really broken? the key statement here is proper install.
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  12. #12 Re: xp cam...whats springs? 
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    have the crank gear machined properly and your rollmaster will be wonderful.
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