boost pressure switch for w/i

[alex027]

I am installing a water/alcohol injection kit onto my car. I think the boost pressure switch is not working correctly. Does anyone know of a place to buy one other than online? i.e. home depot, pep boys, auto zone ect. I need to get one quick because I am going to the track next week and still need to get it tuned. Any help would be great.

 

[LightningGSX]

They're called the Hobbs pressure switch.I've seen the at NAPA auto stores and maybe at Autozone, but you pay a rediculous price for them.Its an online biz, but you can get them at Allied Electronics for $16, same day shipping.

http://www.alliedelec.com/catalog/pf.asp?FN=852.pdf

 

[gixrman]

would you get the normally open or normally closed?

 

[thegreatms]

my guess is that you want normally open. So at 0 psi it is open and there is no circuit. When psi goes up to whatever you set, the ciruit closes snd your pump is turned on. This will spray the water in.

But i would get a second opinion because I have no personal experiance with W/I