Elantra 2002 automatic - question

[WytchDctr]

No.

I think you guys are missing the point. The dry kit itself has nothing with it that would add fuel when its spraying. So you would be adding a lot of air and no fuel to back it up. The only thing a dry kit comes with to add fuel is something to restrict the return line, something the beta2 car does not have. Its not a matter of things not being strong enough on the beta2, its the simple fact a dry kit alone has no way to add the extra fuel it needs when spraying.

If you put a dry kit on a beta1 the injectors would keep the same duty cycle but the additional pressure behind them would add the extra fuel. Unless you where spraying a huge shot the stock fuel pump would handle it. Beta2 has static fuel pressure, thats why wet kits work as well as they do.

[cclngthr]

Originally Posted by wrenchnbench

Hey Colin. Would that constitute the need for a more powerful fuel pump then?

No, the fuel pump pressure would not spray more fuel in if it were higher.

If you put a dry kit on a beta1 the injectors would keep the same duty cycle but the additional pressure behind them would add the extra fuel.

The duty cycle and pressure does not alter fuel output. You easily could blow the seals and internals of the injectors if you add pressure. You need an alternative means of adding fuel. 1 could be using a higher cc injector such as the Sonata 2.4 injector or use a wet kit instead. A wet kit is cheaper and easier than swapping out injectors. Although Sonata injectors will work with a N/A motor, however under normal non-nos use, you could run richer than you really need. The wet kit only adds fuel when it is needed so you will run economically as well as have the power when you need it.

[WytchDctr]

Originally Posted by cclngthr

The duty cycle and pressure does not alter fuel output. You easily could blow the seals and internals of the injectors if you add pressure. You need an alternative means of adding fuel. 1 could be using a higher cc injector such as the Sonata 2.4 injector or use a wet kit instead. A wet kit is cheaper and easier than swapping out injectors. Although Sonata injectors will work with a N/A motor, however under normal non-nos use, you could run richer than you really need. The wet kit only adds fuel when it is needed so you will run economically as well as have the power when you need it.

I don’t normally disagree with you, but dry nitrous/turbo guys have been using additional pressure to increase the amount of fuel that passes through the injectors in a given amount of time for a long time. Thats how a dry kit works and the RRFPR is probably the easiest way to get the extra fuel in a low boost setup. Its probably not the best way to do it, but it works. Hell even hyundai did it with the beta2. They dropped the injector size and bumped the fuel pressure to get better mid range response and better atomization (emissions) but have the same overall flow.




Also the 290cc's will trip a CEL if you dont have some sort of electronic controls atleast at idle. Not to mention the ecm will still have no idea when the nitrous is flowing. It will bump the flow a little when it sees the drop in temperature, but it won’t recognize the extra air because its programmed to read air as 21%ish O2, not the 33% O2.

[stein36]

What's up Doc. It's been a while since i got to argue with you. I got a new toy.

In this matter though I would have to agree with you. The dry kit just isn't efficient for this application. Unless you are willing to drop some cash into a fuel management system which would cost way more then your standard wet system. Coming from experience with N2O, get yourself a good NX or NOS wet kit and push a 50-75 shot for good gains. I personally don't care if I blow my motor so I run a 100 shot and pray. Not the best advice if this is your daily driver.

If your stuck on installing that dry kit though I would keep the shot small, maybe 35 tops. Otherwise your fuel system will not be able to compensate and your gonna go from a littel rich to dangerously lean in about a second.

Good luck in no matter what you do and keep us posted. If it works for you then maybe you can teach us something. Doc didn't agree with my 100 shot but I still do it and have a blast with it. Just know what your getting into and that the dry system is the hardist to and most expensive to use.