CC 306 questions....
CC 306 questions.... I am eager to replace stock cam with a more aggresive cam. At this time I am wanting to leave heads alone, I have a 97 LT1 with elec.waterpump auto trans and 373 gears. just wondering what are drawbacks not changing converter and stock heads at all. I am really more interested in sound than performance but don't want to be to stupid any help is appreciated!
Stay away from the Comp306!
I think you'd be happier with something more mild, like a hotcam or similar profile. If you don't want a higher stall, it's going to be finicky driving a lumpy-cammed car with an auto. Plus, I think there are better cams for stock heads.
I think you'd be happier with something more mild, like a hotcam or similar profile. If you don't want a higher stall, it's going to be finicky driving a lumpy-cammed car with an auto. Plus, I think there are better cams for stock heads.
oops, almost forgot. If you don't want to have to change your valvesprings, you're going to need to stay pretty mild. whatever you do, get it tuned.
maybe if you want a different sound, you should investigate different exhaust setups? Just a thought.
maybe if you want a different sound, you should investigate different exhaust setups? Just a thought.
Teching In
Joined: Feb 2005
Posts: 10
Likes: 0
From: Winnipeg, MB, Canada
you're going to have to change your valve springs anyway, no matter what cam you decide to go with, even the lt4 hotcam although the springs for that are only like $50 or something like that. with the auto, you are going to have some driveability issues(w/cc306) you will probably not like without a hi-stall converter,although the 3.73's do help, just not quite enough. if you are to get a hi-stall, the cc306 is a great cam on stock heads and is just wild once you get the heads ported. most people are putting down around 350 at the wheels w/ this cam on stock heads.
but without doing alot of work, and spending alot of money, i'd suggest the following cams:
-LT4 Hotcam
-comp extreme 224/230 112 lsa
both are great cams and not overly crazy. just my .02
but without doing alot of work, and spending alot of money, i'd suggest the following cams:
-LT4 Hotcam
-comp extreme 224/230 112 lsa
both are great cams and not overly crazy. just my .02
would the Lt4 be ok with stock converter. I am really just wanting a better sound than stock I need to re-seal the front cover and figured I would do a cam swap at same time. I am planning on a tune of course but other than that and cam cost would like to stop at that , Thanks for the replys.
Originally Posted by Camz450
would the Lt4 be ok with stock converter. I am really just wanting a better sound than stock I need to re-seal the front cover and figured I would do a cam swap at same time. I am planning on a tune of course but other than that and cam cost would like to stop at that , Thanks for the replys.
CC 305?.. slightly milder?... just get tuned.. and dont rag on it too much.. should be all good... but you should look into letting the car breathe better also... i suggest. port/polished intake mani, headers or cutout/exhaust...
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12 Second Club
Joined: Feb 2003
Posts: 167
Likes: 0
From: Minneapolis, MN
Originally Posted by RymerC
Stay away from the Comp306!
I think you'd be happier with something more mild, like a hotcam or similar profile. If you don't want a higher stall, it's going to be finicky driving a lumpy-cammed car with an auto. Plus, I think there are better cams for stock heads.
I think you'd be happier with something more mild, like a hotcam or similar profile. If you don't want a higher stall, it's going to be finicky driving a lumpy-cammed car with an auto. Plus, I think there are better cams for stock heads.
I think this is a great cam even with stock heads, though I would highly recommend getting a higher stall TC. Mine is only 2800 stall so it isn't bad at all on the street. My time and power are in sig. Also if you go with any cam that is going to have a lot of lift, you SHOULD redo the whole valvetrain to make it stronger and lighter so you can spin it higher.
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Verdad Gallardo No I haven't driven a cc306 cammed car in about...oh, 3 hours 
I'm not saying it won't make a bunch of power, I'm just saying that for most people's daily driver cars there are better choices- let me clarify: Seat of the pants, a different cam (with more conservative duration) will be more friendly with things like low rpm acceleration. Even wide open, the 306 leaves something to be desired under the curve...
I'm not saying it won't make a bunch of power, I'm just saying that for most people's daily driver cars there are better choices- let me clarify: Seat of the pants, a different cam (with more conservative duration) will be more friendly with things like low rpm acceleration. Even wide open, the 306 leaves something to be desired under the curve...
I would go with the Hotcam kit for the price you can't beat the performance but if you want to spend a little extra dough. I would go with something like the CC305 on a 112l/s with a little more lift, beehive valvesprings from Compcams, Pro Magnum 1.6RR's, Custom PCM Dynotune and some Jethot longtubes. That would be good enough to run high 11's and 340rwhp in the properly setup car. I ran 12.20's@110mph with a little ole Hotcam kit and stock heads a few years back without a good PCM tune. The CC306 is a little wilder than most people like for daily drivers but I love it for my weekend street/strip car. Goodluck later Clint
Originally Posted by Formula94
Have you ever driven a cc306 cammed car?
I think this is a great cam even with stock heads, though I would highly recommend getting a higher stall TC. Mine is only 2800 stall so it isn't bad at all on the street. My time and power are in sig. Also if you go with any cam that is going to have a lot of lift, you SHOULD redo the whole valvetrain to make it stronger and lighter so you can spin it higher.
I think this is a great cam even with stock heads, though I would highly recommend getting a higher stall TC. Mine is only 2800 stall so it isn't bad at all on the street. My time and power are in sig. Also if you go with any cam that is going to have a lot of lift, you SHOULD redo the whole valvetrain to make it stronger and lighter so you can spin it higher.
On The Tree
Joined: Mar 2002
Posts: 154
Likes: 0
From: Birmingham,AL
I trapped 111 on stock heads with the 306. 3800-4000 stall, 3.23 gears, and full bolt ons though.
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12 Second Club
Joined: Feb 2003
Posts: 167
Likes: 0
From: Minneapolis, MN
Originally Posted by Saad06
wow man.. great car... that is exactly the setup i was going for.. 12.0 is freakin awesome..
12 Second Club
Joined: Feb 2003
Posts: 167
Likes: 0
From: Minneapolis, MN
I still think the 306 is a good DD if you have good tuning. However, if you dont plan on a dyno tune(they can get pretty expensive) and just a mail order, and really want to get better gas mileage, then get the 305.
All I have left to do is tune my idle(it is as rich as bill gates) and I should be getting around 280-300miles per tank (currently getting 260, but I have to sit in traffic a lot and I have a lead foot
)
All I have left to do is tune my idle(it is as rich as bill gates) and I should be getting around 280-300miles per tank (currently getting 260, but I have to sit in traffic a lot and I have a lead foot
) 
Originally Posted by Formula94
I still think the 306 is a good DD if you have good tuning. However, if you dont plan on a dyno tune(they can get pretty expensive) and just a mail order, and really want to get better gas mileage, then get the 305.
All I have left to do is tune my idle(it is as rich as bill gates) and I should be getting around 280-300miles per tank (currently getting 260, but I have to sit in traffic a lot and I have a lead foot )
All I have left to do is tune my idle(it is as rich as bill gates) and I should be getting around 280-300miles per tank (currently getting 260, but I have to sit in traffic a lot and I have a lead foot
)
12 Second Club
Joined: Feb 2003
Posts: 167
Likes: 0
From: Minneapolis, MN
Originally Posted by Saad06
im getting 150 a full tank... stock 
.. i dont know how or why... and i am not an aggresive driver.. car rarely goes above 2K rpms ... and its got 2.23 gears?.. wtf... uhh... help?
.. i dont know how or why... and i am not an aggresive driver.. car rarely goes above 2K rpms ... and its got 2.23 gears?.. wtf... uhh... help?1) Check for leaks
2) Get on a wideband O2 sensor to see what your air/fuel ratio is.