Twisted_Z_28

I have a 94 Z28 M6 stock. My plans for this coming January are..Pacesetter LT, 2.5" TD's, CAI. Now my question is, what HP/TQ gains will I see with this H/C set-up. I have my mind set on this cam because I have heard good things about it but haven't heard enough to convince myself. Plan to daily drive and also make a decent amount of track passes. I really want to hear from the guys that actually have the CC306. The guys with actual experience. But anyone else can also post just to get alot of info.

letsrun97z

iTrader: (7)

https://ls1tech.com/forums/lt1-lt4-modifications/818087-more-hot-cam-qeustions.html

LT1_King

iTrader: (1)

i was wanting to know the same thing as twisted but this link doesn't answer none of the questions he asked.

joelster

Here is a video of a local car. Stock home ported heads, cc306 some weight reduction, usual bolt-ons, nothing too fancy. I would guess, running high 11's all day with a good launch. Yellow car is a pretty nasty EVO over 400hp at the wheels, running a little giggle juice (not sure of the shot), from 35-40 roll to ?

http://video.google.com/videoplay?do...56674885450981

solid95z

iTrader: (7)

I had a 355 in my 95 Z28 with stock ported heads & a CC306 cam, hooker long tubes & mufflex 4" exhaust (all the bolt ons as well). My car made 416rwhp/398tq & I drove it every day. I had NO drive ability issues and I ran it on 93 octane pump gas (motor was 12.5:1). The car ran absolutely GREAT. I loved it. The car started to make real power about 3200 rpm all the way up to about 6800. I was shifting at about 7100 with the stock pcm.

So for a quick answer, it ran GREAT, made LOTS of power & I LOVED driving it.

BsGreenZ

look at my sig, i run the CC305 but it's kinda close but it was my daily.. now shes a driveway queen

96capricemgr

iTrader: (1)

Big cams need compression to help tame them which is a piece of why Scott was happy, had the compression.
Really though the guys that put this in a stock shortblock car are often disappointed, needs to be reved higher than is prudent with a stock shortblock, surges pretty badly with low compression and a 350, seen a couple guys endup not enjoying cars anymore and sell them due to this cam.

There was a local 383 M6 car with this cam and at the time I first saw it go like 12.7 NA I was impressed, these days though my stock shortblock heavier car with much less cam would walk all over it if that guy had not sold it too.

People saying they happily use something is not as good a mweasure as most think. A lot of people blindly defend mistakes because they just can't man up and admit them and others are just too ignorant to know any better.
This cam can make good power BUT you can have just as much power from other cams and maintain better drivability.

94Z28man

iTrader: (1)

I am currently running the CC306 with ported Edelbrock heads which flow close to Elliot stage 3s. The car made pretty good power before the rebuild and ran a 12.1 with an all stock suspension and rear. Its not a bad combo for the street or track but I would look into the XFI series cams. Oh and as you probably know prepare to spend some decent money in gas.

BsGreenZ

yeah i had a problem with my cam because i didnt have a stall to make up for it.. But that still doesnt mean i wasnt happy with the cars over all every day driving.. I ran good, just blew trany's lol..

CALL911

iTrader: (17)

Many many modifications ago (and a different motor at the time), the Z in my sig had a CC306 cam with ported stock heads and all the bolt ons. It ran pretty strong and was capable of mid 12's easy. The cam sounds mean as all get up, and I loved it! It is an excellent choice for a nice lobey cam. Be advised though, it won't make much power down low, and will be a burden to drive around town. But it makes crazy power up top, and would be a great cam especially with some gears.

Another cam you might want to look at if you are considering the CC306, is the GM847 cam. It is just slightly more agressive, and will make a little more power and will peak a little higher in the RPM's.

I don't have any video of the CC306 cam since back when I had it in my car, digital video camera's hadn't been invented yet (lol). After I toasted that motor though, I went with a 383, and had a custom CC305 cam. It made much more smooth consistant power through pretty much the whole power band. It still was lobey, but not nearly as much as the CC306, and it didn't peak up top or make the power the CC306 will. But it was much better to drive around town. All and all, I like the bigger cams though and would still choose them over a more driveable cam. I currently have a HUGE custom grind cam that was made for my blower motor I have now.

Anyways, here's a few video's of my car with the CC305 and the 383 to give you an idea of what that would be like.

Click here to see Video

Click here to see Video

solid95z

iTrader: (7)

He makes a great point. If you want to run this cam it would definately help to have more compression. I would recommend getting with you machinest and talk about milling the heads and possibly a thinner head gasket to get the compression up. If you dont want to go that route, there are other cams that make great power and dont require as much compression. Typically my 1st recommendation to anyone on cam selection is get a custom ground cam to match the heads after you have them ported & flowed. That way you maximize the power & driveability.

CALL911

iTrader: (17)

It would help, but it DEFINATLY is not a requirement. The LT1's (and LS1's for that matter) both came from the factory with fairly high CR's. Get yourself a set of 4.10 gears and build the top end to take 7,000+ RPM (springs, lifters ect.) and you will be able to take full advantage of the power that either the GM847 or the CC306 will make.

SincalT/A

iTrader: (16)

Agreed with the above post.I currently run that cam on a stock short block and my ported heads.It will rev to 7200 if you have the supporting mods.I don't have any track times but, with the g-tech i have it clicks off 12.00 to 12.20.There is alot more in it but the car doesnt hook up good 2.1 2.0 60 ft.I am not saying that the g-tech is the track.It will give you a good idea though.My set up includes 4500 stall th-350,4.10,28 10.5 M/T's and very little weight reduction 3650 w/driver.Not freeway friendly so no track times.Btw If you get cam surge then somthing is wrong with you setup.I had 3.23 gears lock up stall before and never seen any cam surge even cruisen at 1500 rpms.

CALL911

iTrader: (17)

The key thing will also be in the tune. If you get someone good like Bryan Herter from PCM's for less do the tune, cam surge will not be an issue.

It seems like a lot of people diss the g-tech's, but honestly from comparative g-tech times to track times they seem accurate usually to .1 of what you do at the track. Now, the MPH seems way off, but the ET's are fairly accurate.

joelster

Not to hijack, but my GTech is about .04 slower than the track everytime. I let my buddy borrow it, and he made 9 passes. 8 were exactly .04 off and 1 was way off, cause he crept through the lights (foot slipped).

CALL911

iTrader: (17)

I guess maybe some are more accurate that others. I ran mine down the track a handfull of times and it was never off by more than .1

I also had friends that had similar results, but like I said, some might be more accurate than others.

SincalT/A

iTrader: (16)

.04 is not to far off IMHO.
Bryan did the tune on my setup also.

kinglt-1

iTrader: (26)

I agree the g-tech is usually within .1. Whats up ben! Have not seen you for a few years!! I run into jeff once and a while. Glad to see you got the beast haulin! Man cruisin in Fort Wayne is nothing like it use to be...

Twisted_Z_28

Thanks for the info guys. I plan on doing this in Feb. 2008. I'll keep you guys posted with track numbers.