LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

CC305 cam, too big for stock exhaust?

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Old Jul 10, 2003 | 10:51 AM
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phenyxTA's Avatar
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CC305 cam, too big for stock exhaust?

I just installed one in my wife's car, it seems like it's runnng ok. It's not missing on any cylinders. It's just runs really rough. When you give it gas it lopes so hard that it shakes the car. I'm wondering if backpressure from the restrictive exhaust could be causing this. Maybe it's too big of a cam without having the usual bolt-ons. I've got a set of SLP headers/y-pipe, and Borla going on next week. Hopefully that'll smooth it out a little.
Old Jul 10, 2003 | 10:53 AM
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Most people here always suggest headers before a cam. The car cant breath.
Old Jul 10, 2003 | 11:01 AM
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Yeah I've got a bad habit of digging into the motor before getting all the little things.
Old Jul 10, 2003 | 11:02 AM
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IMHO, the oem exhaust is too restrictive for the oem cam.
Old Jul 10, 2003 | 11:14 AM
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Let that thing breathe! Also get some tuning
Old Jul 10, 2003 | 11:26 AM
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Put an exhaust on that thing....
Old Jul 10, 2003 | 01:00 PM
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It's already been tuned by Ed Wright. I unbolted the y-pipe and ran open manifolds and took it for a drive. Despite sounding like a 9 second car it ran alot smoother, like it should. The exhaust is going on next week.
Old Jul 10, 2003 | 01:47 PM
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you will sure feel a difference once you get those 2 things on it. why wouldnt you do the little stuff first to help you? do you have any cold air induction coming in on it?
Old Jul 10, 2003 | 02:19 PM
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Re: CC305 cam, too big for stock exhaust?

Originally posted by phenyxTA
I just installed one in my wife's car
HMMM If I make it "My wifes car" maybe I could have a cam and headers too GREAT IDEA!!
Old Jul 10, 2003 | 02:36 PM
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Cam, Exhaust, Tuning. Did them all at the same time.
Old Jul 10, 2003 | 02:50 PM
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I dont understand w/ all the time and bs ya went though for the cam, why are u still runnin a stock exhaust
Old Jul 11, 2003 | 12:47 AM
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phenyxTA's Avatar
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Because the cam came in before the exhaust. Simple as that.
Old Jul 11, 2003 | 07:56 AM
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simple as that huh..... had to tell ya this but i dont see how you are gonna benefit with that cam until the rest is done, especially exhaust!!
Old Jul 11, 2003 | 10:11 AM
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Dude you're not listening. The exhaust has been ordered, I'm installing it next week as soon as it gets here. There's no point in waiting for the exhaust to arrive before installing the cam, I just wanted to speed things up. I'm not too worried about what I get from the cam in the next few days because by the end of next week it'll have a cam AND EXHAUST.
Old Jul 11, 2003 | 10:18 AM
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good, sorry for the wrong info. then man. good luck
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