24 valve head on a 12 valve block.
#11
#14
that is not the reason they put runners on.
Look how the ports are on a 24v vs a 12v.
http://www.zzcustomfabrication.com/head_porting_08.html
Look how the ports are on a 24v vs a 12v.
http://www.zzcustomfabrication.com/head_porting_08.html
Last edited by shortbusdriver; 04-13-2010 at 10:44 PM.
#17
There are many intake manifolds that dont have runners.
They need runners to separate the ports to prevent "distortion" between the cylinders. 24v ports share two valves so they will not flow as much in high performance applications.
They need runners to separate the ports to prevent "distortion" between the cylinders. 24v ports share two valves so they will not flow as much in high performance applications.
Last edited by shortbusdriver; 04-14-2010 at 12:38 PM.
#19
#20
Maybe not worth the money because of the expense, but that's a lot of personal opinion on what money is worth. I dont have the money, but others might.
Milling the intake off, porting and making new intake manifolds is serious work. I can make my lawnmower head flow more than a 24v with enough work and money.
If the same is done to a 24v head, do they still flow more than a 12v?
85_305 is partially correct. When dealing with forced induction, flow is not always a big deal and can be easily overcome by more boost. Still, the more efficient an engine is, the more power it will always make. The same setup with only one better flowing part in the system will make more power.
Milling the intake off, porting and making new intake manifolds is serious work. I can make my lawnmower head flow more than a 24v with enough work and money.
If the same is done to a 24v head, do they still flow more than a 12v?
85_305 is partially correct. When dealing with forced induction, flow is not always a big deal and can be easily overcome by more boost. Still, the more efficient an engine is, the more power it will always make. The same setup with only one better flowing part in the system will make more power.