Between the CC306 and the XE230/236, what would you guys choose for me? I'm lokoing for a cam that is still street legal and "streetable"....I want to really rip on the streets, but be able to run mid 12's at the track with my bolt ons. Both cost the same, and I will be doing 1.6 rockers, XE pushrods, Dual valve springs, and the rest to the valve train....so please let me know what you suggest. Thanks!

 

If you run a search I think you will find both of those cams are pretty radical. If you drive your car on the street a lot I would suggest the 224/230. A friend of mine has it and love it. That cam should be plenty of cam to put you in the mid to low 12s.

 

I can't find the XE cams on summitracing or jegs....do you guys know the part numbers for them?

 

If by "street legal" you mean pass tech then I don't think you will make it with either of these cams. That said, if it were me I would go with the CC306 over an XE grind. I have a XE in my car and it does a fairly good job, but I wish I had went with a CC306 or a GM847. My brothers car has a CC306 and this cam sounds mean as hell and pulls to 6800 with ease. My XE on the other hand craps out at about 6300 rpm and makes peak power at around 5900 rpm. The XE's are good cams if you don't want to rev your motor too high, but I am totally convinced that the CC306 or the GM847 are the way to make big power at the rear wheels.

 

I have a cc306 on my car and its my daily driver, never have problems driving it everyday I would vote for cc306 and it sounds really good.

 

Would I be able to pass state emissions tests with the CC306??I dont care about tech at the track, they're easy. I don't really want to rev my 77,000 mile bottom end to 6500 rpm's....whats the power difference between the XE 230/236 and a CC305 or CC306??

 

dont know too much about the other cam , but for the cc306, you are going to want head work done if you want it to perform at least near its best.. But i like the cc306

 

The XE 230/236 is actually a bit smaller than the CC306 because the 230/236 an XE grind, and the CC306 is a magnum grind.

My CC306 was a 229/245, and I had XE230/236 custom grind on special order, but it arrived way late for the install, so I ended up getting the CC306 instead. But thats at .050.

At .006, my CC306 is 290/307, and the XE was 280/286. There you can see the lobes are a bit smaller.

IMO, if you keep stock heads, either one will be fine, and depending where you are, might pass smog. I had a custom y-pipe made up with two cats, one right after each collector and I passed with the CC306 with stock heads.

As for heads, I wouldn't want to spin the stock bottom end past 6500, and the CC306 is going to put me at max power around 6500.

 

Thanks a lot guys. You've been a lot of help. Now I just have to do some sole searching and decide between the two. I want it to be aggressive, but I dont want it too aggressive, and i think the 306 would just be a little too much...Does anyone have the parts numbers for the XE 230/236? I cant find it on jegs OR summitracing...

 

a friend of mine did the 306 and about 6 months later i got to ride with him. he also had his heads cleaned up,dont know what was done to them.. but the car would absolutely scream . hard to believe it was the same motor... the downside, it would die turning around in a parking lot. fast but not streetable imho. he liked it but i wouldnt want the road manners. everyone is different with streetable. it was a m6 with 3.42s

 

Forget Jegs or summit for most internal parts on the newer engines (LT1 or LS1). Their offerings are very limited. Try one of the supporting advertisers at https://www.camaroz28.com/misc/vendorindex/

Combination Motorsports or Thunder Racing would be my choice. Combination has a huge amount of cams available for the LT1. Thunder has the 230/236 listed.

 

OK thanks again for all your help. I'll be going with the XE 230/236 and I'll get it from thunderracing...this cam is still radical, but not radical enough to stall me out while pulling out of a parking space haha. Plus I think the extreme energy's sound better than the regular ones....thanks

 

XE230/236... I'd have to say this is the largest cam i'd go with to keep the car streetable... otherwise it just gets to scarey for dates, small animals, pregnant women etc.
I went with the XE230/236 because of this and how it made a lot of power at revs of 6300 and less.. I dont want to rev the engine that high. The cc306 out revs what most of the engine components are rated for.

 

The reason your XE cam craps out at 6,300 is you have valve float.

Read the Q&A section about Extreme cams:

http://www.compcams.com/catalog/014.html

I have found that the XE cams need about 140 lb seat pressure top get an adequate rpm range.

Most people that don't like XE cams aren't using enough spring pressure.

Me XE224/236 high-lift (.605"/.593") pulls cleanly to 6800 rpm using 140 - 145 lb seat pressure.

The XE cams have less seat duration (better low-end and idle), but more area under the curve than others (more power everywhere). That's the whole point of the XE lobes. Look at the duration at .200":

Intake dur. @ .006" .050" .200"
CC306 290 230 143
XE230 282 230 151

Exhaust dur. @ .006" .050" .200"
CC306 307 244 158
XE230 288 236 157

If set up properly, an XE cam will always perform better and idle better than comparable conventional cams.

Mike

 

I was debating the same thing you are.. I went with the CC306.. I found the same things said about both cams.. Everyone had the same opinion about both.. So i figured I may as well go with the bigger one and be happy.. I didnt want any second thoughts about not going bigger either.. The cc306 sounds a bit more aggresive than the 230/236 as well.. Both turn your lower end at stock numbers but then kick in like crazy.. They are both great cams and both streetable, go with the 306 and be done with it. emissions are going to be tuff with either cam... I dont have emissions in FL so im not worried about it.. But if I were you maybe get a spare y pipe with dual cats on it to pass.. then swap it out when you get home... An "emissions Tune" will also help.. Maybe just get a PCM with two different tunes on em and swap them out when you need to.. Good luck though. Im also doing my install in about a week with ported and milled heads and 1.6 rockers.. Ill be making a video of me driving around with it aswell if you want to see it let me know... Ill let you know how it is in the meantime after the install..