I have a 07 ss 2.4 na, dyno at 210hp, 12.5:1 compression, built bottom end with domed pistons, built head, ported and milled, comp cams, it's a dirt racer, I have some of the bolt on goodies like header cold air intake, except I still run stock injectors stock fuel rail, stock plug wires, stock ignition, stock 2.4 intake manifold, stock throttle body, ..
My question is, would changing any of those I mentioned get me more power? more torque? quicker? faster? or should I just leave it as is? Always trying to go faster..thank you

 

Really depends on how much youre willing to spend to gain a few percent in power.

2.4 intake manifold is probably the best stock manifold for any ecotec trying to make power NA.

Adding a larger throttle will help slightly, I think ZZP sells an adapter plate to run an LSJ throttle body on an LE5 intake manifold but youll need a tune.

https://zzperformance.com/products/l...-adapter-plate

 

Welcome

 

yes, I'm ordering the throttle body and adapter plate, also getting 34# injectors and get it retuned/dynoed, what could I expect in hp from this? 10hp?

 

I would say 10 at the most

 

You're pretty much at max after the TB + plate. You could do the short tube + catless for your specific application (again, tune is needed) but you'd only net gain maybe about 15-20HP for spending $1000. After that, it's forced induction to go any faster. Slowbalt here knows his **** for the 2.2/2.4L since he's done it and more himself.

...just don't ask him if the car has left the blocks yet

 

LOL, Im busy working on my rwd 2.4 car