I want to buy the Nitrous Express kit from gravana. Am I able to just buy the kit and install with out changing anything. I have been told to run colder plugs but am not 100% sure.

 

definately use colder plugs and make sure you dont over shoot the motor. use like under a 100 shot.

 

Yeah Use Colder Plugs And Dont Over Shoot It

 

Thanks, made up mine mind and going to order the kit now. Also a mechanic at my work said watch out not to run to rich or to lean. Is this something to consider?

 

Eh don't put more then a 50 shot into those pistons no one else has done it so far really that I know of. Those pistons might not hold too much higher of temperatures, so be careful. Also, are you getting a WOT Throttle kit or Push Button?

 

yes it is run a wideband A/F ratio gauge just to make sure and dont forget to practice safe zex. always PURGE lol.

 

Ya, I am going to run a button.

 

Careful with the button seriously man, if you don't know what your doing anything over a 50 shot and I put 20 bucks on you buying a new head or a new engine in 6 months. Don't use that **** on the street everyday, thats not the purpose...

 

Thanks for looking out, is wot better? Also my car only has 4600 miles. is this a problem? My buddy has it on a MR2 and that has like 116000 miles and he uses the hell out of it. His car is still slow with it.

 

Yeah but a lot of people have been posting that our pistons are maxxed out pretty much from stock. If you use WOT when you press the gas all the way in it will activate nitrous. So lets say a tractor trailer is coming and you just stalled out in the middle of the road. WOOOOOOOOOOOOOOMP... heheh just kidding but really thats how it works. Plus you can put throttle control on it so when you get to so many RPMS it will stop spraying. Heard this helps engine life... Plus I think that MR2 comes with stronger pistons...

 

things you need to run nitrous safely:
wet kit, no more than a 75 shot
a step or 2 colder plugs
WOT or TPS switch - only activates when the pedal is to the floor
RPM Window Switch - can set a "window" in which you want the nitrous to be activated, for instance when you are WOT throttle you can set it to spray between 3200rpm and 6400rpm. This is definitely most recommended so you don't spray to early OR hit the rev limiter, which can end your engines life. Don't hit the governor either, no safe guard for that

and thats pretty much it, if you're running a bigger shot you can install an MSD DIS 2 to retard spark timing but its not necessary for a 75 shot and below.



oh and I forgot, to feel the full effect of your nitrous a bottle warmer and purge kit are also recommended but not required.

 

I'd go with 2 steps just to be safe on the 2.4

generally you run richer when using nitrous, that's just the nature of the beast. you should be concerned with running too lean, but honestly I doubt that will be an issue.

a wideband isn't all that necessary. it won't stop detonation, just show you that your a/f is too lean if you lean out. the fuel tunint on a nitrous setup is set by the jets. as long as you use the proper jetting as in the chart that comes with it, then you will have the correct and safe ratio.

shoot for something like this as far as your arming setup:

Main Arming Switch => WOT/TPS + RPM Window Switch => Relay => Solenoids

as Ninja said though, you don't want to spray and hit your standing rev limiter if you have one, nor do you want to hit your top speed limiter while spraying. RPM Window switches only have only have one "on" and one "off" point, speed is independent, so keep that in mind.

as long as you use your head and watch that you don't inentionally do something stupid you will be fine. the vast majority of failure is due to user error, which stems from false info or lack of restraint.