ok I had a dry kit from a mustang so I installed it on my truck, I have the nozzle about 9-10" in front of the maf I have a 40 jet in it and doesn't make
much difference at all in the seat of the pants meter. truck is 04 stock tune diy cia,with muffler ,5.3 3.42 gears. how big can I safely go.

 

I think I have seen people running 100 dry infront of the maf but someone should back me up before that is taken as the truth. I am sure I remeber 2 or 3 guys though.

40 should make a noticable differance but it won't be tire peeling power! Jump to 75 and you should be fairly happy for a wile.

 

barely even notice it I almost didn't think it was working it hits so soft. bottle psi was 950 line from solenoid to nozzle is about 7"long

 

can some on please help with what jet size for a dry kit = 75hp

 

I am running a dry kit in my truck wth a 75 shot after the MAF with the HSW Interface. The 75 horse jet is a .044 in mine. Just got the truck tuned ad haven't spray'd yet, but on the stock tune the 75 was a nice bit of extra power.

 

You can shoot a 100 dry in the truck, with out a pcm tune(but it helps). After that I would suggest in bigger injecters, tune.. After that it's time for a wet shot.. Na 40 hp isn't but maybe 25 to the wheels after the loss it takes going through the drive line. Your *** meter isn't really going to feel that

 

I always thought that a dry shot had to spray before the MAF, not ever after. Has something new come out?

 

Yes you should be spraying it before the MAF

 

The 1st dry kits used a piece that went inline with the fp regulator to up fuel pressure when spraying.All the Mustang NOS kits use them.

Spraying pre MAF is a pretty new idea,say10-12 years old.

 

For a 100 shot you should be using a .052 jet. If you are not watching airfuel you are playing with fire. On a standard dry nozzle placed before the maff something as simple as the nozzle moving a degree can alter the airfuel.

I would suggest going to one of our Halo discharge rings and do away with the nozzle. It will completely saturate the air intake flow with a more evenly spread of nitrous rather than one discharge.
Dave