Jump to content
SAU Community

Recommended Posts

Im after some information from people who have used Nitrous before in a small shot.

Im sending my rb30 in soon to be retuned which should net around 350kws at the wheels. Ive got a nitrous kit here that ive had for yonks that i got for next to nothing and wouldnt mind trying it. A few mates have had success with 40/60 hp shots which is what ill be doing. Hopefully ill get around the 380/400rwkw mark.

I will have a seperate fuel map through my computer for the nitrous.

Im interesting in whether its really necessary to have a purge system? If not what sort of delay can one expect before it kicks in?

My next one is whether im going to have issues running the nitrous (if so what issues) running without a bottle heater? I am in NZ (lot colder than AU) and the car may be used for night drags during the summer. The bottle will be mounted in the boot and i have considered a blanket to help retail heat?

Id love to hear from those who have used it before and the pro's and cons of both.

Thanks

Link to comment
https://www.sau.com.au/forums/topic/255263-nitrous-information/
Share on other sites

bottle heater is a necessity IMO as it keeps the hit and therefore the NO2 tune consistant, i ran a heater but no purge as i used most of my gas on the street just being a jerk :blush: the softer hit without the purge helped cushion the shock on my auto.... for the first hit anyway :D i ran a 200hp kit on my old clunker but have done a couple of setups on NA 300zx's and supras lately usually 80-150hp.

Good to hear feedback like that. The one advantage of more cylinders i guess is the potential to run more nitrous.

Whats the best way in your opinion to have it setup? Eg on a button or switch on the throttle?

Is there also a correlation between drill bit sizes and the size of the nitrous shot. Have a few small hp fittings here (25hp etc) that are no use, and ive been told you can drill them out.

Any other hints or tips you would suggest?

Good to hear feedback like that. The one advantage of more cylinders i guess is the potential to run more nitrous.

Whats the best way in your opinion to have it setup? Eg on a button or switch on the throttle?

Is there also a correlation between drill bit sizes and the size of the nitrous shot. Have a few small hp fittings here (25hp etc) that are no use, and ive been told you can drill them out.

Any other hints or tips you would suggest?

You always want a wide open throttle switch (as a safety mechanism)

the bottle should be kept at a constant temp, very hard to do. this will keep the mixture correct. as the bottle gets colder the pressure will decrease and it will go rich. nice to keep bottle 850 900 degrees, in youre climate you will need a heater. also a guage on the bottle to monitor bottle pressure. apurge is nice to get a cool shot at the solenoid, happy times!!!!

the timing map needs to be tweaked with timing taken out. You are using a 'wet' system?

You can get yourself another 100rwkw with the fogger if you have the supporting systems and motor build can take it. Going from 350rwkw to 450rwkw might be fun :happy:

You can jewlers drill /file out the jets. All jets should be flow tested anyway to do it right. The NOS brand basic brass flare jets aren't always bang on in size and even NOS themselves at least reccomend flow testing them (very easy backyard test to do).

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • It says 300ZX, does that make it an Aus delivered car? Funny how back in the day I just couldn't care less about Z32's and these days I am just in love with them. Back when Nissan was into pushing the envelope. 🤣
    • Hi guys, just after some guidance with an R34 sunroof that has stopped working correctly. It still opens and closes perfectly fine, but it no longer tilts/vents up or down. As a result, the rear of the glass now sags a bit as it drops down slightly in order to retract into the roof, but now it can't pop upwards into a flush position. I’ve probed the pins on the back of the switch connector with a multimeter and it seems like both switches (for open/close and tilt/vent) still work correctly. Any ideas on what it could be, or where I should even start in terms of diagnosing? I'm sure someone's had this issue before but I haven't been able to find anything online relating to this specific issue, most of the issues are with the seals leaking or the motor failing entirely. Thanks in advance!
    • Do you have some data like fuel pressure? It's really hard to say if you're still fighting a fuel system issue at this point. Could be something weird like the FPCM dipping out.
    • Yeah in that case, pulling the dent out. Event a very slight dent can create a lot of work filler-wise and there is a strong chance the panel won't be the factory shape when you are done (as the dent will result in a new high point created somewhere, then everything is brought up to that new high point... but the panel shouldn't be that high if that makes sense).  So you've filled and primed the panel and it is flat, why would you go back and remove the primer and add more filler? 
    • Something else I have been faffing with while the car was off the road is making the AC work. Assuming the car isn't at a thermal limit the idea of having AC while waiting in line to go on track sounds delightful. I have actually been lugging around the weight of the entire system since 2018 when the RB25NEO went in without it working at all.  The main reason was in the first few events before I got around to re-gassing it the rubber hose that runs under the manifold had the factory heat wrap/sleeve fail resulting in this: ~2 years ago I purchased a complete used R32 AC line set but when I finally went to install it the line i needed was different where the expansion section is I found a local place that was able to replace the rubber section and re-crimp. They also added some modern heat sleeve to the hose Tight fit but fingers crossed this is the last physical piece of the puzzle needed
×
×
  • Create New...