As I look at pictures of race cars in Japen, more and more I see SEV strapped around intake tubes, radiator hoses and on exhaust systems.
Pepe started a thread with a link to SEV and everyone started calling it a joke until 1RandyC came in later and said he had tried it and believed in it. I'm not sure what to think but I certainly don't want to overlook the possibility of a 6 - 10 hp gain for $750. For those of you who have modified you know you can't put N/A HP on this car for a $100 per HP ratio. A web search on SEV offers no results in english which I could find, but endless pages and sites in Japanesse. If anyone has knowledge to claims on SEV and/or can provide translations about SEV, I for one, would like to here from you. I can't imagine so many of the creditible Japanesse race houses mounting this on their cars without some substantial data being published somewhere. Your opinions.....

http://www.sev.co.jp/

http://www.sev-power.com/

http://www.racingcraft.com/js-products-sev.shtml

 

I agree with you. I wonder if this stuff is for real. If it is, this could be a good performance value. I don't have gobs of money that I could experiment with this, so I hope to see feedback from users in the U.S.

 

Isn't randy's friend Toshi a supplier? I'm curious about this, but would never guinea pig for it. It sounds too "mystical" for my taste.

 

what is SEV?

 

We're not exactly sure Eric, thus this post. We're hoping someone can translate or provide feed back on first hand experience. An uneducated interpretation is an externally mounted band which has the ability to change the molecular structure of the air and/or water which passes inside it.

 

This system would be quite simple to test on the dyno since it can be turned on an off with a simple switch flip. Install the entire system, run a dyno, flip a switch, run a second dyno and compare...if 6-10 HP doesn't show up (more than a statistical anomoly for dyno's), someone's full of it.

I looked at the English translation site, and at least one claim in there strikes me as BS already, but that may be an artifact of someone's poor translation, and a second as suspect (I'll have to whip out the chem books to check it). For the chem majors here, anyone know the energy required to split an O2 molecule and the stability of the resulting 2 O atoms?

 

An on/off switch would be nice but I don't think it works that way and, that would mean someone would have to buy it un-proven.
It simply wraps around the radiator hose, air intake hose and tail pipe - but doing a dyno without it and then with it might not be effective because 1RandyC said it took elapsed time to increase power on his car. I would assume it takes time to penetrate? If a dyno was done as a base line and then SEV was wrapped and allowed to sit 24 hours there could be different results, but I don't follow the on/off switch.

 

No, I'm sorry but unless someone proves with cold hard facts otherwise, this thing is just total snakeoil.

I'm open to discussion, but as it stands now, I don't believe in it.

People who think their car improves KNOW that it's in their car, therefore the improvements are probably more psychological than real.

 

The kit has to work on some form of electrical power...this can't be something non-active, like magnets (if it is, then I will immediately say the whole thing is crap). You need to input energy to break up the O2 molecules. If it's electrical, you should be able to use an on/off switch, and therefore be able to run back-to-back dyno's.

If the system takes time to penetrate, then it would prove useless. Air is moving at a significant velocity through those tubes, so if the system takes more than a couple hundred MILLIseconds to break up the air near it's working rings of whatever, the air will have passed by before it was ever broken up into individual O atoms. If the system IS that quick, then turning it on and off between dyno's should prove the system out. Back-to-back dyno's (say within 5-10 minutes of each other) should more than belay the statistical differences between runs and show if the system works.

 

I think the argument is that the ECU needs to readjust to the non-SEV settings before doing a second dyno. A 50 mile drive should easily suffice in between runs.