The inlet and outlet ports on the engine block are usually larger than those of the manifolds that connect to them.
This allows for scope in the manufacturing process to allow for mismatched alignment.
Generally the engine ports are larger in the upstream flow direction avoiding turbulance but power gains can be made by matching these up.
Diesel Tuning for maximum power and torque
From a diesel perspective, anything that isn’t turbocharged is a waste of time from a tuning point of view. Similarly, anything that isn’t using electronically managed direct injection is a pointless tuning proposal so we are somewhat limited to modern Turbo Diesels.
Get rid of those two ointment bound flies and things get more interesting
Engine Balancing – balancing pistons, rods and crank.
The main areas for engine balancing. "A balanced article." We all know what happens when a wheel is fitted to […]
Building a 10 second car
We look at what it takes to build a 10 second car and examine the power and weight requirements to reach the sub 11 second goal on the drag strip.
Follow our tips and you can make a 10 second car quite cheaply and within your budget with some power mods and serious weight reduction.














