nitrous engine question

1652 Views 8 Replies 5 Participants Last post by Induction-Solutions, Jan 24, 2011

Nosbaby

Discussion Starter · Jan 20, 2011

I am getting ready to change things up in my small block chevy, my question is
what are all the big hitters doing for compression ratios?
I have heard a while back that their lowering the compression allowing more nitrous into the cylinder. but lately I have been hearing of them running higher compression like 14-14.5:1?

motor is a 12* sbc, compression now is 13.5:1
im gonna bore the block out some and order new pistons, what should I go with? and the reasoning for it?

thanks

Save

1 - 2 of 9 Posts

Induction-Solutions

· #4 · Jan 21, 2011

Nosbaby,
It looks like 576 hit the nail on the head. The compression number is only a part of the equation, the quench area, dome size/configuration, chamber shape and size and so on are the important parts.. Thanks, SJ

Save

Induction-Solutions

· #9 · Jan 24, 2011

Nosbaby said:
ok I asked a buddy of mine about the quench area, he tried to explain it to me.
it sounds like the area between the piston and the combustion chamber. and he mentioned that for nitrous you want a larger quench area? so should I have my combustion chambers reworked?

YEP !!!

Save

1 - 2 of 9 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

Top Contributors this Month