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Turbo and Cams Question

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Old 04-14-2005 | 08:31 PM
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Default Turbo and Cams Question

I know this may be really dumb, but why don't you want to use something like Skunk2 Stage 2 cams with a turbo? why would you want to get Skunk2 Turbo cams? I know when you have a turbo, you want lower engine compression....but does Cams change compression?

Just asking, cause i had planned on getting Stage 2 cams, but i am guessing that wouldn't be the smartest decision if i were to turbo it down the line.

BTW i have a 99 Civic SI.
Old 04-14-2005 | 10:35 PM
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No, cams do not raise compression.

The Skunk 2 Stage 2 cams have too much overlap and duration for a turbo setup which makes the backpressure issue even worse and can cause the backpressure to become so great that it backs up into the cylinder and can heat up incoming air and contribute to detonation.

If you have a small turbo that has a large amount of backpressure to acheive better spool up times, like the Greddy kit, you would want to stick with the stock VTEC cams. If you have a larger turbo with minimal backpressure and lag out the ass, you can get away with a mild camshaft with a few degrees more duration than stock with near stock separation angle.

Essentially, you should stick with your stock cams with either setup. I have been recommended against the turbo cams and I haven't heard much about them, so I don't think $700 is a worthwhile investment.

So, the Stage 2 cams would only be a worthwhile investment if you plan on staying N/A. Otherwise, keep saving for the turbo.
Old 04-14-2005 | 10:39 PM
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So what's wrong with Turbo cams??
Old 04-15-2005 | 05:39 AM
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look dude, westcoaststyle is making somewhere around 400 whp to the ground. He is running the stock gs-r cams on like 20 or so lbs of boost. He cant keep the power on the ground, why would you want any more than this. plus if im not mistaking, the gs-r cams are good up to like 500whp under boost. Save your self a half a grand on that and instead, spend that into tuning.
Old 04-15-2005 | 05:41 AM
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My tuner says that GSR OEM cams will make 650 whp, np. He yells about turbo cams and how much of a waste they are. You can spend your money much more wisely.
Old 04-15-2005 | 05:48 AM
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thanks for the follow up :goodjob:
Old 04-15-2005 | 02:06 PM
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I just thought Shmoo had said they were bad, i just wanted to know why.
Old 04-15-2005 | 03:18 PM
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depends on the motor you have. If you have a gs-r motor, they are shit. If you have a little motor that has very non aggressive cams, it will help "open the motor up".
Old 04-15-2005 | 09:42 PM
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Originally Posted by pomansouth
depends on the motor you have. If you have a gs-r motor, they are shit. If you have a little motor that has very non aggressive cams, it will help "open the motor up".
That is right. I was referring to the B-series in general when I explained why turbo cams suck as well as stage 2 cams for a turbo setup.




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