Rods 'n' Sods - UK Hot Rod & Street Rod Forums banner
1 - 5 of 5 Posts

·
Registered
Joined
·
727 Posts
Course its doable. But the problem I feel will be the pistons, and the compression ratio. Lots of times folk will use a "de compression plate" To lift the head up and away from the pistons, and lowering the comp ratio. In my mind this is a shit idea, and counter productive. Sure it lowers the comp ratio, the idea being that you can bung more pressure in with less detonation risk. The problem is thus. when you move the head away from the entire piston crown/dish you loose your squish or quench area, twix the piston and the head surface. When you loose this squish/quench the chamber becomes MORE prone to detination. See? Counter produtive. Dont know if you can get them, but if I were doing it, I'd want a lower compression ratio piston (deeper dish with a crossflow) that kept the top edges of the piston right up the top where they should be for good tight Quench.
Martin.
The rest of it is brakets and pulleys and ratios and manifold. Do that in a sandwich brake
 

·
Off the Xmas card list
Joined
·
24,347 Posts
Course its doable. But the problem I feel will be the pistons, and the compression ratio. Lots of times folk will use a "de compression plate" To lift the head up and away from the pistons, and lowering the comp ratio. In my mind this is a shit idea, and counter productive. Sure it lowers the comp ratio, the idea being that you can bung more pressure in with less detonation risk. The problem is thus. when you move the head away from the entire piston crown/dish you loose your squish or quench area, twix the piston and the head surface. When you loose this squish/quench the chamber becomes MORE prone to detination. See? Counter produtive. Dont know if you can get them, but if I were doing it, I'd want a lower compression ratio piston (deeper dish with a crossflow) that kept the top edges of the piston right up the top where they should be for good tight Quench.
Martin.
The rest of it is brakets and pulleys and ratios and manifold. Do that in a sandwich brake
Not forgetting what the plates do to rocker geometry , just like skimming the head too much for the other extreme.
 
1 - 5 of 5 Posts
Top