[DeTomaso] Stack Height

[JDeRyke at aol.com]

In a message dated 10/24/10 8:28:11 PM, julian_kift at hotmail.com writes:

> My understanding has always been that longer stacks provide for more 
> throttle response and low down to mid range torque.
> The degree of effect on a particular engine depends on cam overlap etc. 
> and likely requires dyno tuning.
> 
Agreed. A 2" tube height difference won't make a giant difference in 
torque. "Long" stacks are usually 12" or more, while "short" stacks are 3", but 
stack or ram-tube tuning is a black art intimately connected with compression, 
cam characteristics, intake length and a few other things. Hanging tubes on 
your engine at a dyno session in place of an air cleaner may not do much at 
all. Think of it as fine-tuning a motor. Good luck- J DeRyke