How can the Tornado help hp when it does the exact opposite of a port polish? The idea is to get more air into the engine by polishing (smoothing) the intake rather than obstructing it. I understand the concept around it. It makes sense, but then again it doesn't...

 

buy it, the tornado Freaking roxX

 

moderator please close this thread, tornado is a waste of money. You want some power remove the intake resonator, it will be more effective than the tornado. SEARCH!

 

please tell me how would removing the resonator be more effective, and how would you go about to remove the resonator?

 

http://4dsc.com/articles/drivetrain/..._removal.shtml

This is the write up on how to do it, hope it helps.

 

oh i see, removing the resonator on the (VG maxima which is what car i was refering to) would yield nothing and its basically hard to remove since its molded to the intake tube..

 

 

not unless you get a cai mid pipe...

 

I don't have experience with the 'tornado' so I wouldn't comment on it's benefits or downfalls. I'll say that people with dyno slips have actually shown good gains. If you don't have a dyno tested tornado, then you wouldn't really know what you're talking about.

The idea behind porting and polishing is to allow more and smoother air to flow , yes. When air is taken in through the intake, it's pretty sloppy, alot of turbulance. Tornado doesn't really serve to restrict, I guess what it wants to accomplish is what throttle body spacers do, straighten the air so it can travel faster (reduce the turbulance). The faster the air can travel (without turbulance), the more air the engine can suck in. If you can understand this, then you would understand why tornado in theory is a good idea, as for it it works or not..i don't wanna waste money to find out. I think on a stock intake you'll see a difference, if you already have an aftermarket intake, then you probably won't because the air is already delivered pretty smooth.

 

i was at the dyno shop with a 96 max w/ only intake (pop-charger) and he dynoed w/ and w/o the tornado. at least 1-2 hp gain throughout the rpm band and +5hp gain above ~5500. when he first got it (as a gift from his gf) he said he noticed a dramatic difference between 40-60mph. when putting the 2 dyno plots together there was about a 4hp difference when his car was doing 40-60 mph.

the tornado concept "works" in theory. an example is when you have two of those soda bottles, tape the two openings together with water filled in one bottle, turn it upside down and eventually see a cyclone as the water drains into the bottom bottle. a medium travels faster when it's all moving together (makes sense)- less turbulence. the tornado works just like that - makes air move together.

the tornado, however, doesn't work in all cases. it has a crossover point where the hp loss from air restriction is greater than hp gain from acheiving a cyclone effect. (engineering rules)
again, the kid i was with had a stock midpipe with the ridges. having a tornado might have helped reduced the turbulence created by the ridges. will the tornado work with an intake with smooth piping (i.e. cai, hybrid)? dunno. maybe next time i dyno i'll borrow the tornado.