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heads/cam on the way

This is a discussion on heads/cam on the way within the Internal Engine forums, part of the LSx Technical Help Section category; Yesterday I ordered this: 5.3L stage 2.5's 228/228 .588/.588 on a 114 pushrods LS7 lifters Underdrive pulley belts ported LS6 ...

  1. #1
    Veteran 0rion's Avatar
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    heads/cam on the way

    Yesterday I ordered this:
    5.3L stage 2.5's
    228/228 .588/.588 on a 114
    pushrods
    LS7 lifters
    Underdrive pulley
    belts
    ported LS6 oil pump
    LS2 chain
    ARP bolts

    Should be a fun summer.

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    Not a bad way to spend $2K+. Have fun!...

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    Thank god I have new nitto's on there.

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    Unless you've got some good suspension mods, I don't think it's going to matter all that much. That's going to make some awesome torque.

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    I have an adjustable torque arm, LCA's, relocation brackets, and a strange 12 bolt with 3.73's that I installed last spring.

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    Did you lower the car at all? New shocks? Sounds like you got yourself covered.

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    not lowered although I did the hose mod but really don't want the headaches of being lowered. Shocks are this summer. There's still a few things left to do but for the most part I've tried to build the car right. Tranny is about the only important thing left to do and that'll probably be a next winter mod. I'm a stalled a4 currently so the 4l60e is nearing it's final days.

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    member since may 2000 nhraformula's Avatar
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    suspension mods are overrated if you ask me.
    my friend has alot of that done along with the same performance mods as i.
    needless to say, he and i time wise are dead even.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

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    I did a couple of suspension mods (lowered the car, control arms/panhard rod, relocation brackets, better shocks) and cut 1.8x 60 fts on crap Z-rated tires, and it shaved a nice .5 off my ET (13.3 to 12.73), so I would disagree with you on that.

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by Chevythunder17 View Post
    I did a couple of suspension mods (lowered the car, control arms/panhard rod, relocation brackets, better shocks) and cut 1.8x 60 fts on crap Z-rated tires, and it shaved a nice .5 off my ET (13.3 to 12.73), so I would disagree with you on that.
    when racing, no two days are alike. track and air could of been better one day.
    you are the first person to ever claim to lose half a second with suspension mods.

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    Suspension mods are compounding. The aftermarket parts are usually ( not always) heavier and more durable for high performance but try launching a stock suspensioned car putting down serious HP and then you get a better picture of what the suspension mods do. For instance, among other things, I've added subframes and a 12 bolt. Not sure on the weight of the subframes but I would guess them ~30lbs maybe and I think the 12 bolt has 60 pounds on the 10 bolt so there's ~90 lbs I introduced to the car that it didn't have on it before. Add in the panhard bar, LCA's, Torque arm, and you're talking about close to 100 extra lbs. The problem is without those parts you're looking at no traction and probably creased quarter panels with enough power.

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    Quote Originally Posted by nhraformula View Post
    when racing, no two days are alike. track and air could of been better one day.
    you are the first person to ever claim to lose half a second with suspension mods.
    It was in June, and was within a week of each other. 60 ft went from 2.2x's to 1.8x's with no other changes on the car. Same tires, pressure, etc. The car went from blowing off the tires to hooking up (somewhat, I was still spinning). In New York it's typically 70+ every day. You can argue track prep, conditions, whatever, but I could tell in the way the car left the line.

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