Manufacturers don't usually add the extra cost and complication of trick intake
components unless there is a problem to be addressed. And in due course the smallport
showed that there were better ways of fixing a lack of torque. Just my guess
ALOT of motors incoorporate this wizardry. It simply works.
Immediately felt the difference when the vacuum hose on my TVIS had a hole
Toyota MZ V6, mazda BP, ca18, 4g63(non-us had tvis)..... very common for the day. Even moderns like the mazda3 2.3
While smallport versions increase port velocity more economically.... flaps Very effective, especially boosted
Dyno confirmed by many.
1st megasquirted turbo tvis 1.6 clubmember said low-midrange pull was so strong it felt "unatural, almost V8 like"
A 200 hp 1.6 must be cammed pretty aggressive. I'd think tvis/low-mid rpm not important for the application
When you start getting deep, into slicing up intakes/massive mods.... gotta ask if it's "turd polishing". Worth it?