Best way to increase compression?
Best way to increase compression? 1.milling heads
2.domes pistons
Anything else? I see problems with both my choices. Valve contact and more detonation respectively. I'd rather keep my pistons flat and keep the heads how they are. But compromises must be made I guess. So what's the best way?
Also, how would I calculate compression ratio?
2.domes pistons
Anything else? I see problems with both my choices. Valve contact and more detonation respectively. I'd rather keep my pistons flat and keep the heads how they are. But compromises must be made I guess. So what's the best way?
Also, how would I calculate compression ratio?
Re: Best way to increase compression? Milling the heads would be the best choice. This allows you to keep a flat top piston which in theory promotes better combustion efficiency in two ways:
1. Domed pistons are more detonation prone and screw up flame propogation.
2. You will be increasing the amount of "quench" in the chamber. (this is the flat area of the head that matches up with the flat area on the piston top.
These are two of the principles the LS1 combustion chamber is designed to enhance.
I've done TONS of research on the subject and most successful engine builders today subscribe to the above theory.
Hope this helps.
1. Domed pistons are more detonation prone and screw up flame propogation.
2. You will be increasing the amount of "quench" in the chamber. (this is the flat area of the head that matches up with the flat area on the piston top.
These are two of the principles the LS1 combustion chamber is designed to enhance.
I've done TONS of research on the subject and most successful engine builders today subscribe to the above theory.
Hope this helps.
Re: Best way to increase compression? Due is completely right. The smaller chamber is the best way to go.
You can also go the cheap route if you can find a thinner head gasket. I'm not sure what the compressed gasket thickness is stock but a change in the LS1 gasket of about .030" is 3/4 of a point of compression. This will also effect the quench area.
Bret
You can also go the cheap route if you can find a thinner head gasket. I'm not sure what the compressed gasket thickness is stock but a change in the LS1 gasket of about .030" is 3/4 of a point of compression. This will also effect the quench area.
Bret
