I think the CC 306 is just too much for me right now since I don't have head work or a stall, but I was considering the CC 305. Should I go with the CC 305 or the N-218XL from Combination Motorsports. The specs for the N-218XL is 218/224 duration, .526"/.536", 112lsa. The CC 305 specs are 220 / 230, .510 / .510 114 LSA. After the cam install, I plan on getting ported/polished heads and 3.73's. Which cam do you think I should go with? Would either of these work well with a supercharger if I decided to go that route? Thanks. Also, I highly doubt it, but does anyone have a sound clip of the N-218XL cam? Would it sound anything similar to the cc 305?

 

I ran around with my 224/230 (listed as part number N-224XL on their site) with the stock converter for nearly a year.. no problems. With a 112 lsa it has a bit more lope than a 305, but nothing crazy.

For a supercharger, the 305 would be much better due to the 114 lsa. Check out their supercharger cams, you'll notice they're all on a 114 where as the N/A ones are 112.

 

Very helpful post. Thanks. Would these two cams give about the same gains? Any idea on how much gain to expect?

 

Hate to say it, but if you do some searches, there are some recent posts with both the 224/230 and the 218/224 with dyno #'s on stock heads, both have nice #'s. I remember a while back rumair hit nearly 350 rwhp with the 305 too.. lots of info lurking in the archives.

EDIT:
Did some digging - here's a 218/224 dyno post.

 

you might also want to look at the cc07-503-8. Its not as radical as the 306, but is a good all around cam. i personally thinl this one would run better in a almost stock situation.

Drew

 

Well, I am stock for now, but the reason I am wanting something like the cc 305 is because I am gettin' a daily driver(old Honda or something) for Christmas and I will get to do some REAL mods to the Z. Like I said, first cam, then heads, then gears first off. I just want everything planned out ahead of time. So the CC 305 would work good w/ ported polished heads, and 3.73's? But will also work fine with stock heads and gears because I will have to save up money for each mod and it will be a while before I can get everything done?

 

Any of the cams mentioned so far will work with stock heads or worked heads. A few have gone even bigger with stock heads, like a 306 or 230/236 (which will in turn use the flow available by worked heads better). For an A4, I'd suggest getting a higher stall & gears after the cam, then get the heads. Or flip that and get the cam after the stall and gears. My reasoning: If you're like me and have 2.73's and go to a higher stall with a cam, you're going to get pretty annoyed with those stock gears. I only have a 2400, but it's enough (I don't drag race, btw). The converter wants to let the engine rev, the gears bog it down.. it gets old. I definitely need some gears for general quality of life

 

Yeah...ok, so here's what I want to do I think...

CC 305 cam kit from Combination Motorsports(includes everything...rr's, locks, etc.)

Then...3.73 Motive Gears, probably a 2800 stall, and then ported/polished heads.

Sound pretty good? And thank you for all your help. It's helped me with my decision a lot.

 

if youre really looking for power get the 306. its a little nicer all around grind. also, dont make the mistake i made. comp cams sells it for like 294, where summit sells it for 234. being that these are all things you will NEED to have the computer programmed for, save the money and do it all at once. its a waste to have the pcm programed 2 or three times.

for your heads, take a look here:
http://www.superchevyperformance.com...lt4convert.asp

at very least i would suggest the heads and the air intake. ive got all mine, just waiting to get the engine pulled so i can start my rebuild. i have decided to go with the 306 as my cam. also instead of using the rockers in the kit i went with the cc rockers. also upgrading to 7/16 studs on the heads, and i have decided to use stepped guideplates.

 

OK, your plans for a supercharger means that the 114 lsa of the cc305 will work better. However the XE cams have smaller advtised duration with the same .05 duration so you can have a smaller LSA with the same overlap (which is bad for a blower)

What do you want to rev to? If your on the stock bottem end and don't want to spin it to high of an RPM you should look at the smaller cams. The 306 needs to be revved high to be effective like 6700 shift point versus 6-6200 shift for the 218 within 5 hp. I picked the 218 because i didn't want to stress the bottom end.

There are two 218/224 sound clips in the 'Videos' on my webpage and some cc305 clips too.

The 218 will have better manners than the 224/230 and make the same power on stock heads. If your looking for a lot of lope then the bigger cams are for you.

If you look at comps recommendations the 218 is for stock heads and 224 for ported heads.

 

i didnt see the plans for the sc. what are you looking for in way of lbs of boost?