i don't know if i agree with theCATman
, he said "There is a product for 4 barrel carbureted car/truck engines that does the same thing as the Power Now valve does, it's straightens & smoothes out the airflow, and it too works. The "tornado" thing is crap. The smoother, straighter, & faster air can get into an engine, the more power that engine will make. You don't want the air tumbling or spinning. "


i recently put a tornado on my Z ,there is still further testing and pruffing to do dyno's with a AF are hard to come by . after doing a dyno AF check , i had to rejet the air jet to a 27.5 and move the needle to the 7th position with spacer, i will also be putting in a 177.5 main jet small round ,may have to go to a 180 but i dout it.

my settings were 175 main ,25 air jet , DJ needle 4th position with spacer.

ya, only a repeat on the dyno will prove if its doing whats claimed but so far i cant say its not hurt any thing . more air+ more gas = more power

 

A "tornado" for an atv intake tube?? Hmmmm , O.K., didn't know that, interesting. Well, if it's working, great!!

 

LTZGUY, please don't read any malicious intent on my part against your first post. That is my opinion, and exactly what I would have posted whether you had participated in this thread or not. As for Powernow products, that is my opinion. I did state many of the bike and quad mags have raved about them, but I am not blowing $100-200.00 to find out for myself. I would be interested in some dyno proof that they do anything though.

 

I agree on the price, ridiculous. Didn't mean to get pi$$y with you. I don't think they are worth the price, but if you are trying to squeeze evey lil bit out of you atv...then yea

 

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