My friend that got my cc306 is putting it on without touching the heads.

He is doing rr's springs lifters etc but not porting anything.

Can this hurt anything or just make the car not run to its full potential?

He daily drives it M6 with 3.73's


Besides alot of tuning we need to know what things he is gonna run into. Dont wanna put our foot in it and watch it blow for some reason.

 

If everything is up to snuff (which it seems to be) I dont see how anything can be damaged while running that cam if the valvetrain can take it . Seems to me the car will not run to its potential and thats all, kind of like gagging the cam so to speak. The 306's power band is basically useless if not non existant. Someone more knowledgable can take it from here.

 

If he starts winding it up to 6500 like he'll need to use the powerband of that cam he'll be risking the bottom end. IMO thats not a good cam choice, but i'm no expert. There are many people who do rev that high with the stock bottom so it's not a guarenteed failure, your just pushing the envelope.

 

Yeah thats kinda where my question was headed to.

Per say he gets on the car and is in the higher rpms is the car gonna kinda hiccup and stall, backfire etc for whatever problems could result from this set-up.

Or would it merely make the cam less potent?

 

springs are going to be the main restriction to that cam. i would invest in some good springs for sure (go for good to .600 lift). they are going to be affected the most by over-reving!

however, the bottom end may need some attention after a while. big cam + big cam (high redline) = A LOT of pressure on bearings.

that is a pretty big cam for stock heads and i dont think it will work very well with them. i have a 230/236 cam which is relatively big for a stock head car and it is doing great. and it is on a 110 LSA which gives it a killer sound. just something to consider