What makes a cam lumpy?

[VXSS]

Whats a good cam size for lumpy low end torque

 

[Munz]

anything around the 217-222 intake, 220-228 exhaust and 110-112 LSA

 

[Cava454]

215/223 .610 112+2

 

[phat_6ltr]

217 225 114

 

[someguy360]

A little off topic but what would be recommended for a stock 304 (without needing to shave heads etc)

Would like something with a choppy/lumpy idle and a decent exhaust note (not overly fussed in power gains but mid range rev improvement would be nice)

 

[ajvx01]

A little off topic but what would be recommended for a stock 304 (without needing to shave heads etc)

Would like something with a choppy/lumpy idle and a decent exhaust note (not overly fussed in power gains but mid range rev improvement would be nice)

276 cam..? Why not shave some head meat off? 5L have a piss poor na comp ratio from factory.


Electrical work, Adelaide all areas.
Pm me.

 

[someguy360]

276 cam..? Why not shave some head meat off? 5L have a piss poor na comp ratio from factory.

Because labour just for cam/valve springs/lifters etc from a reputable performance workshop isn't cheap to begin with before you start thinking of machine work etc.

(I can't be bothered doing it myself, I don't have the time and patience at the moment)

 

[ajvx01]

I hear ya.. Let me know what ya get charged.


Electrical work, Adelaide all areas.
Pm me.

 

[Cava454]

Because labour just for cam/valve springs/lifters etc from a reputable performance workshop isn't cheap to begin with before you start thinking of machine work etc.

(I can't be bothered doing it myself, I don't have the time and patience at the moment)

Then leave the motor stock.

 

[Darren_L]

A little off topic but what would be recommended for a stock 304 (without needing to shave heads etc)

Would like something with a choppy/lumpy idle and a decent exhaust note (not overly fussed in power gains but mid range rev improvement would be nice)

'lumpy' cam and stock low compression don't mix. You'll most likely end up losing power.
They get away with it on the LS engines because they have a decent comp ratio, but unfortunately the Holden V8 has lousy comp from the factory.

if you just want a lumpy idle, get a tuner to richen up the idle