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Old Sep 11, 2018 | 08:20 PM
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Default Replacing Cam Shaft

Has anyone replaced their cam shaft with an aftermarket one? If so, which one and what difference did it make? I'm thinking of having it done. Very pricey, tho.
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Old Sep 11, 2018 | 08:36 PM
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Does the replacement provide VVT?
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Old Sep 11, 2018 | 08:46 PM
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Originally Posted by KenHorse
Does the replacement provide VVT?
If the OP is smart, get rid of cylinder deactivation and the lifters.
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Old Sep 11, 2018 | 09:23 PM
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Ok, I'm guessing VVT is variable valve timing? What does that do?

What's cylinder activation and lifters?

Sorry, new at this.
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Old Sep 11, 2018 | 09:26 PM
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Originally Posted by Matthewstorm
Ok, I'm guessing VVT is variable valve timing? What does that do?

What's cylinder activation and lifters?

Sorry, new at this.
Variable Valve Timing and Cylinder Deactivation

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Old Sep 11, 2018 | 09:31 PM
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Thanks, but this really didn't explain anything to me.
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Old Sep 11, 2018 | 09:33 PM
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Originally Posted by Matthewstorm
Thanks, but this really didn't explain anything to me.
I guess my first question would be - why do you want to replace the camshaft and what are you hoping to achieve?
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Old Sep 11, 2018 | 09:33 PM
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More power and a more throaty sound.
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Old Sep 11, 2018 | 09:35 PM
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Originally Posted by KenHorse
I guess my first question would be - why do you want to replace the camshaft and what are you hoping to achieve?
Voiding the engine warranty with no real advantage perhaps? It's not a 70s era V8 where simply swapping cams will generate lots more HP or torque with no downside. If you don't know what VVT is or what cylinder deactivation is, you're not ready to consider major engine mods.

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Old Sep 11, 2018 | 09:36 PM
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Originally Posted by Matthewstorm
More power and a more throaty sound.
Probably do better with headers and a tune
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Old Sep 11, 2018 | 09:37 PM
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Originally Posted by Steve_R
If you don't know what VVT is or what cylinder deactivation is, you're not ready to consider major engine mods.
I was headed there
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Old Sep 11, 2018 | 09:37 PM
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Originally Posted by Matthewstorm
More power and a more throaty sound.
More horsepower or more torque; they're not the same thing? And if you want a "more throaty" exhaust sound, install headers and a different exhaust. Swapping cams is the wrong way to change the exhaust sound of these new V8s.

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Old Sep 11, 2018 | 09:44 PM
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I have a manual so no cylinder deactivation unless I'm in ECO mode which I never am. I won't learn if I don't ask questions.
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Old Sep 11, 2018 | 09:49 PM
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Originally Posted by Matthewstorm
I won't learn if I don't ask questions.
True. Your question about a cam swap and reasons for doing so tell me that you're older and used to older non-computer controlled V8s (so am I so that's not an insult). A cam swap was a relatively easy and cheap way to get more torque and change the exhaust sound. New engines aren't the same. To get what you want you need a different exhaust system and a tune; there's no reason any more to tear into an engine to change the exhaust sound or to get more power unless you're talking extreme power, which involves more than just a cam swap.

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Old Sep 11, 2018 | 09:49 PM
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Originally Posted by Steve_R
Voiding the engine warranty with no real advantage perhaps? It's not a 70s era V8 where simply swapping cams will generate lots more HP or torque with no downside. If you don't know what VVT is or what cylinder deactivation is, you're not ready to consider major engine mods.
But a good cam & tune on the car will get you about 60 to 70 RWHP but will not have VVT no longer. If your car still has a warr on it dont do nothing on it until it is gone. From now to then do your reading up on this DI motor.... Robert
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Old Sep 11, 2018 | 09:50 PM
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Originally Posted by KenHorse
Probably do better with headers and a tune
I do have headers and a tune.
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Old Sep 11, 2018 | 09:52 PM
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Originally Posted by robert miller
But a good cam & tune on the car will get you about 60 to 70 RWHP but will not have VVT no longer. If your car still has a warr on it dont do nothing on it until it is gone. From now to then do your reading up on this DI motor.... Robert
No original warranty but I do have an aftermarket extended warranty.

Sorry, DI motor?
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Old Sep 11, 2018 | 09:53 PM
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Originally Posted by Matthewstorm
I do have headers and a tune.
OK, so what do you mean when you say you "want more power?" Do you want more low end torque or more high RPM horsepower? They're not the same thing and when you start changing things like camshafts you might help one but hurt the other. Do you race it and, if so, what kind; drag or track? Simply saying you want more power is like saying you want it to be a different color; it doesn't mean much.

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Old Sep 11, 2018 | 10:00 PM
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Originally Posted by Matthewstorm

Sorry, DI motor?
Direct Injection. Means the fuel is injected directly into the cylinder instead of in the intake air upstream of the intake valve.

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Old Sep 11, 2018 | 10:31 PM
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It wouldn't cost that much more to throw a super charger on it and call it a day.
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