volv4life

dont be confused a wet shot system will work fine as long as your porsche intake's are single planed, any possible problems are supposed to arise only on dual planed manifolds, but apparently the nitrous companies dont see it to be too much of an issue, even on the dual planed manifolds they say not to worry too much.

the one thing they do point out is that wet kits can cause the fuel to puddle in the intake, which well.. wouldn't be very good

bleucamaro

Why in the world would you go to a wet TBI setup on a car with port injection? ESPECIALLY when there is an easy alternative that uses stock injector location with the addition ov the nitrous injector.


BLOODRAVEN: check this out. Its what you want. http://www.nitrousexpress.com/Catalog/2005/nxl.pdf

jp944

I'd like to point something out at this point. Wet kit is the only way to go. Wet fights detonation and lean conditions which are a problem in forced induction cars, more so with N2O / forced induction cars. Fuel puddling is a concern, but running lean is much, much, much scarier. Some of the all in one kits spray nitrous at the beginning of the intake. ZEX makes an air filter with a nozzle in it. This is fine for dry, but wet needs to be sprayed direct port OR well into the intake. Call Nitrous Express. Pick up the phone and call them. You will not get good and consistent information about nitrous from an internet forum.

Campeck

ok. I think im getting confused. does a wet kit mean that it sprays NOS and fuel from the same nozzle?
from two nozzles close together? or that it travels through an intake not designed for "wet" mixtures.
(only NOS or gas and nos)

dry just means it shoots NOS at the valves or PI and you need to find other methods to supply fuel? chip fuel pressure ect.?

jp944

with a wet kit, a single nozzle sprays the fuel and N2O. They are sprayed in different proportion based on which jets you've inserted into the nozzle. Dry means that no additional fuel is sprayed, only the nitrous line is fitted into the nozzle.

Campeck

right. so dry is better cause you can tune the fuel delivery via chip, pressures, wideband. right?

and all of it should be PI.

jp944

If you were running nitrous all the time, maybe. For most applications it is easier just to build an appropriate component based wet system that can be moved from vehicle to vehicle instead of installing standalone engine management or custom software just to run nitrous.

Anyone can invest some time and learn how to build a good wet nitrous system. Few people have the expertise required to build the kind of additional fuel delivery system you're thinking of. Remember that nitrous is not 'trial and error' friendly. You need to know you're doing the right thing from the start, and the easiest way to do that is with race proven products. You don't want to make several runs *trying* to get the fuel mix right. Use a wet kit, use the manufacturer's recommended jetting, go have fun.