200hp jets would be 78 nitrous 46 fuel
250hp jet would be 88 nitrous 52 fuel

On the 250 it should be way rich, might need to get a 48-49-50 jet so you can tune alittle if need be.

Ricky

 

Thanks,

I used the nitrous calculator from the site below and it gave me 67/38 for 200HP , 74/42 for 250HP and 82/48 for 300HP. Now I am confuesed.

www.azsupersport.com/nitrousjetcalc.asp

 

Not about that website. Too many different people have that kinda a stuff out there, and they all tell a different story. No telling what the A/R is you can run a range roughly between 4.75-6.0 and live all day long. The leaner the tune up the more you have to be on your game, the window of error is realy small.
Small shot 150 and down can be ran leaner and still be safe. The more hp the richer the tune up will go to stay safe.
My jetting is rated at the ground. Not at the engine.

Ricky

 

Ricky,

Every time I've tried to go to www.nitrousexpress.com on your signature I get a error saying the page doesn't exist; is the site down?

 

Sorry; I just tried it again and it worked

 

Sorry about that had it wrong. All is fixed now.

Ricky

 

i want to get this... for my 97 formula, is that a good one?

 

Yes that is the good one. 20920-10 is the part number.

 

awesome :-D

how safe is this for a novice to install?

 

easy to install just read the directions all the way through before you start. look into a fuel pressure safety switch (FPSS) and a window switch for added safety. I also recommend a nitrous filter, it's like $50 worth of extra insurance.

for all the extra little **** you need including the FPSS look into a Gen X 2 kit from NX comes with purge, FPSS, blow down and heater to make it a cleaner looking instal NX makes a sweet switch to control it all and so does Jimmy Jam's.

One more thing you will need to change your plugs to a NGK tr6 gapped at .035