I recently picked up a used kit.

http://cgi.ebay.com/ebaymotors/TPI-N...item20b8886510

I didn't plan on it but I used to drool over these things. I am going to replace/rebuild the solonoids and buy all the necessary parts to make it work. I am trying to find out where to get info on what size fuel and nitrous jets I need. I would probably be running a 100 to 150 shot.

I might contact NOS and see if I can get some info.

 

Use a nitrous jet calculator online. If you run typical 43.5 psi fuel pressure and 900 psi bottle pressure, and have 8 nitrous ports for direct port system and only want to run 150 whp shot total, then you will want around a 0.022-0.023" nitrous jet and around 0.012" fuel jet.

http://www.robietherobot.com/NitrousJetCalculator.htm

 

NOS site has what you need in instruction manual.