KA24DE N2O Tuning

Kind of new to the N2O scene. First off I have a 95 240sx SE. I am getting a turbo kit, but I want N2O on it now to hold me over till then. I would like to run a safe amount. (I read in anothe post that there are a bunch of guys running a 75 shot) Is this a good safe level. Also I was told I would need to retard the timing. For a 75 shot on a stock KA24DE how much timing do I need to take out. What all do I need to do to make this as safe as possible.

I ran N20 on my car for about a month or so. I was using the NX stage 1 EFI kit. If your motor is in good shape, then you can safely run a 75 shot. That's what I ran. If you're not very confident in your motor then just run a 50 shot and call it a day. Oh yeah, when you get a nitrous kit, make sure your buying a wet kit so that it delivers fuel and nitrous at the same time. The dry kits suck ass. I didn't retard my timing at all, but some people will retard it only about 1-2 degrees.

You can definately feel the extra power from a nitrous kit. I took it to the track once when running the 75 shot and ran a 14.6 @ 92 mph. This was all stock except the nitrous. Pretty damn good improvement over stock.

I ended up selling my kit because I realized that nitrous just wasn't my style. Plus I needed more cash for a turbo setup.

anywhere from 50 to 75 is fine.
Wet kit is prefer but dry kit is not bad.. but personally I will not go more than 75 shot dry if u don't have better fuel pump and a adj. fuel regulartor to pump up the fuel pressure just a tag.
But its all about tuning.

with 50shot wet or dry, you really don't have to mess with anything.
for 75shot I would back the timing off maybe 1 to 2 deg... (probably 18BTDC at idle).. and 1 step colder plug in the safe side(#6 plug to be exact).

I installed a few kits for my friends, IMO if u not asking much, i think the Zex kit is the best suit for u.
Its a dry setup, but no solenoid or much wire needs to do. And its safe. compare to other kits that I installed, I like this one the most.. Clean, easy and effective.

Just a vaccum hose after throttle body, N2o line inlet, outlet to nozzle, and TPS wire signal. which probably is the white one in most KAs throttle body.

anyhow, hope this help :)

the guys at holley say as long as you stay under a 20 shot per cylinder you're alright.

Cool. Thanks guys. I'll let you know how it turns out. :smile: