Anyone using a G5X3 cam?
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Teching In
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From: Santa Rosa, California
Anyone using a G5X3 cam? How do you like it?
According to a local highly reputed tuner, there is no reason to use the g5x3 cam, he says it's too large. He tells me that he custom grinds cams all the time that make the same power and create a lot less stress on the valve train. He suggested a grind something like this: 224/228 duration w/ .590 lift.
Is he just trying to sell me a cam or is he right?
BTW Comp 921 spring kits are expensive!!! I've heard about PRC springs too, much less expensive, are they any good?
Your educated advice is greatly appreciated!
According to a local highly reputed tuner, there is no reason to use the g5x3 cam, he says it's too large. He tells me that he custom grinds cams all the time that make the same power and create a lot less stress on the valve train. He suggested a grind something like this: 224/228 duration w/ .590 lift.
Is he just trying to sell me a cam or is he right?
BTW Comp 921 spring kits are expensive!!! I've heard about PRC springs too, much less expensive, are they any good?
Your educated advice is greatly appreciated!
the G5x3 is a good cam, I wouldn't know how it drive though now would I? 
no it makes good power and pulls like a **** up top you will like it, it is more of a max effort cam; will idle rough, stall sometimes and turn a lot of heads.
no it makes good power and pulls like a **** up top you will like it, it is more of a max effort cam; will idle rough, stall sometimes and turn a lot of heads. 
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Originally Posted by dwicker
How do you like it?
According to a local highly reputed tuner, there is no reason to use the g5x3 cam, he says it's too large. He tells me that he custom grinds cams all the time that make the same power and create a lot less stress on the valve train. He suggested a grind something like this: 224/228 duration w/ .590 lift.
Is he just trying to sell me a cam or is he right?
BTW Comp 921 spring kits are expensive!!! I've heard about PRC springs too, much less expensive, are they any good?
Your educated advice is greatly appreciated!
According to a local highly reputed tuner, there is no reason to use the g5x3 cam, he says it's too large. He tells me that he custom grinds cams all the time that make the same power and create a lot less stress on the valve train. He suggested a grind something like this: 224/228 duration w/ .590 lift.
Is he just trying to sell me a cam or is he right?
BTW Comp 921 spring kits are expensive!!! I've heard about PRC springs too, much less expensive, are they any good?
Your educated advice is greatly appreciated!
Thread Starter
Teching In
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From: Santa Rosa, California
Anyone using a G5X3 cam?
Originally Posted by CBX
224/228 is definitely a good choice. It depends on how you are going to use the car. You will have more usable power under the curve with a 224. People that have used it have put down some great numbers as well, plus it's not so hard on the valve train depending on the cam profile you pick and the lift. 590 is a lot of lift, by the way. Definitely something to consider.
I'm not too concerned with torque, unless it's usable, it's no fun peddling through 1st and 2nd gears. My friend has an 03 Cobra w/ 515rwhp and until he upgraded to delrin bushings in the rear suspension, he couldn't put his foot into it until 3rd gear w/out HUGE amounts of wheel spin. I want to be able to put my foot into it and feel the power come on in a similar way to how the car reacts with the stock cam, just more up top.
I think the G5X3 is .600 and .610, duration not specified... It's on a 112 so that oughtta help out with the low end, compared to say a 114, huh?
Thanks for your help!
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Originally Posted by dwicker
Thanks!
... It's on a 112 so that oughtta help out with the low end, compared to say a 114, huh?
... It's on a 112 so that oughtta help out with the low end, compared to say a 114, huh?
Correct me, someone, if I am wrong.
Last edited by bluecamaroz28; Dec 31, 2005 at 11:28 PM.
Originally Posted by bluecamaroz28
Isn't it the other way around. 112 will loose low end and rev higher. 114 will have better low end but will not rev as high as 112, or should I say perform up top as 112.
Correct me, someone, if I am wrong.
Correct me, someone, if I am wrong.
I believe you are wrong.
(I think)
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Originally Posted by Ice Knight
I believe you are wrong.
(I think)
(I think)
C. Lobe Separation Angle (LSA)
- LSA is defined as spread in camshaft degrees between the intake centerline and the exhaust centerline.
- Overlap is the number of crankshaft degrees that both the intake and exhaust valves are open as the cylinder transitions through the end of the exhaust stroke and into the intake stroke
- LSA is ground into the cam and cannot be changed without grinding a new cam
- Bigger duration cams will have more overlap then a smaller duration cam even if both are on the same LSA.
- The key to making overlap work is maximizing the power in the rpm band where you want it.
- Long overlap periods work best for high-rpm power. For the street, a long overlap period combined with long-duration profiles combine to kill low-speed torque
- Reducing overlap on a long-duration cam will often increase midrange torque at the expense of peak power, but if the average torque improves, that’s probably a change worth making.
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Originally Posted by DVST8OR
Got it, love it, highly recommend it!! 
Like what was said just get a good tune. I have had mine in for over a year daily driven and never had a single driveability problem.
Like what was said just get a good tune. I have had mine in for over a year daily driven and never had a single driveability problem.
Is the G5X3 bigger than those two I mentioned.
so who makes this G5X3 cam? how much does it cost? i have got about every damn bolt on accept the LS6 intake..commin soon..to my 99 LS1 formy. what power gains could i expect w/ this cam? and what all would i have to upgrade to run it?
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From: BFE
Originally Posted by Black FormulaLs1
so who makes this G5X3 cam? how much does it cost? i have got about every damn bolt on accept the LS6 intake..commin soon..to my 99 LS1 formy. what power gains could i expect w/ this cam? and what all would i have to upgrade to run it?
They sell a complete cam kit. Mucho $$$
I have the G5X3 and love it. I drive it almost every day with no issues. My car drives like it came from the factory with this cam. I wish it had a little more bottom end but it definately makes up for it up top. Get it and get a good tune and you will not regret it.
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From: NJ
Originally Posted by dwicker
Thanks!
I'm not too concerned with torque, unless it's usable, it's no fun peddling through 1st and 2nd gears. My friend has an 03 Cobra w/ 515rwhp and until he upgraded to delrin bushings in the rear suspension, he couldn't put his foot into it until 3rd gear w/out HUGE amounts of wheel spin.[COLOR=Red] I want to be able to put my foot into it and feel the power come on in a similar way to how the car reacts with the stock cam
I'm not too concerned with torque, unless it's usable, it's no fun peddling through 1st and 2nd gears. My friend has an 03 Cobra w/ 515rwhp and until he upgraded to delrin bushings in the rear suspension, he couldn't put his foot into it until 3rd gear w/out HUGE amounts of wheel spin.[COLOR=Red] I want to be able to put my foot into it and feel the power come on in a similar way to how the car reacts with the stock cam
