How is the idle? I want to get the max power out of a cam without reving more then 6k and keeping my heads stock. Im thinking this may be the best cam to accomplish that. I also want to be able to tell it has a cam when its idleing.

Craig

 

I was wondering how this cam performs. I plan to get it next year.

 

My numbers with this cam are in sig. I'm running the 227/233 with a 110 LSA. I dynoed at just about exact same numbers with a CC305 but before I had the 12 bolt and 4.11's. Both of which will cause dyno numbers to be lower. My tune is still based on the CC305 and Alvin at PCMForless said that I shouldn't need much of a change because of the 110 LSA, but I'm definitely running richer with the 227/233. My A/F with the CC305 were in the high 12's to low 13's - with the 227/233 I never got above an 11.8 so there is some improvement to be had there. The car idles fine but you can definitely tell it's got a cam. I'm hoping to get the car leaned out a little and I'll head back to the dyno. I'll update when I do.

Edit: I peak at about 5800, only revved to 6000. My car revs very fast and I frequently bang off of the rev-limiter. I'm going to raise it when I get it leaned out.

 

do you have any head work done?

 

i went ahead and had my limiter set to 6900 so i would not hit it with my cc306.

 

The car idles really well and sounds very nice. With the Jet Hot's, Hooker Y-Pipe and Hooker catback the car sounds really smooth when pulling through the gears with the M6. The car really pulls nicely and I have beat several decently fast street cars with it. The dyno numbers are prior to the 12 bolt so I will probably lose a little there. However, the car feels strong and I think the track numbers will be good. I made one pass on radials and trapped almost 89mph through the 1/8 mile with a 2.6 60ft time. I estimate it the car to be good for a 7.70 or so with a good launch and short time.
I don't have all of the bolt on mods yet either. I am still using the stock throttle body without the TB bypass mod. I don't have an electric waterpump or underdrive pullies. I also didn't port match the intake when I had it out. These are all really minor things, but they add up when you are looking at dyno numbers.
For a street driven car the 227/233 is a very good cam imo, especially if you are using stock heads. If I were doing it over though I might go with something larger since I don't have to daily drive my car and I have ported heads.

 

Heads were done by a local shop with whom I have little faith. I have no flow numbers and they are no longer in business.

 

i went with the 306 in my daily driver with ported heads, i will let you guys know how it does because i am putting it all back together tonight and should be running tomorrow night(after the intake sealant drys...)

 

I honestly wish I'd have went with the GM847. Only problem would be that I'd probably have to rev my car higher than I really want to with 88K on the bottom end. FWIW the cam performs exactly as the guys at Combination Motorsports said it would.

 

Thanks for the info guys! SOMEDAY......