Originally posted by SixFoFalcon@Jan 13 2004, 03:13 PM
Morana isn't really used all that much for Taurus parts. There are a few people who have gotten the roller rockers, IIRC. The problem is, they require head machining, so many people just back out of the notion of getting them, unless they are getting other head work done (i.e. bigger valves, porting, etc.)
Basically, I think what you are asking about is stuff other than the "remove intake silencer" and cat-back exhaust, but not as extreme as nitrous or a blower. Which would leave porting and polishing the intake manifold or runners, performance chips, tranny work, etc.
Here is my basic synopsis:
Intake - P&P intake manifold/runners, big bore butterflies on Duratec/SHO motors, bigger TB, water/alcohol injection, P&P lower intake manifold, bigger MAF, P&P heads for better flow, bigger valves, higher ratio roller-tip rockers, bigger/more aggressive cam
Exhaust - well, apparently you don't want this info, since it's been covered to death.
Other engine work - Piston swap and/or head work for higher compression, bore & stroke (not necessarily easy to do on most models), balance internals
Ignition - not much to do here... bigger coil (negligible gains), better wires (negligible gains)... nothing is really better than a good tune-up, until you start building a race motor, in which case you would scrap the whole stock ignition system and run a Mallory or something. A chip can help with timing advance w/o any other mods. Older engines allow manual timing advance.
Trans - Shift kit, performance chip, Quaife (basically a limited slip diff.), upgraded TC (higher stall rpm), numerous other little goodies I know little about like extra clutches(?)
Other - VAK or UDPs or both to cut parasitic loss from engine-driven accessories
