75 is the limit for a stock block. You are approaching the danger zone at that level. I would work my way up to that. Back out a little timing as well. It really dpends on how much timing has been added already if you are running a flash.

Kartrailed, I do run a remote map switch. I have 5 maps available on the fly. It works great for nitrous only tunes. So I can have a c16 plus nitrous map as well as a pump, meth and nitrous map.

 

thanks a lot evotech! And is it fine to have the stock ecu because i tuned my ecu and have been doin it for a while so i am pretty knowledgeable and stock ecu tuning. would i have to get a piggyback or ems, or can i just use a window switch to arm the kit and then it sprays by itself when WOT? thanks

 

I would keep away from a nitrous+meth map, even if some people do it, its not really a recipie for keeping your motor in one peice.

 

yea meth is already risky but plus nitrous, even more! lol...

 

How about the next map that I am creating and no I am not kidding and yes I know the risks. Meth + Nitrous + C16+ Nitromethane. The only real dangerous part of this equation is the nitro. Like everything else in life big chances have the potential for big rewards. This is one of those things. I know someone who ran this setup to the tune of 11.0 on a stock turbo with basic bolt on on an VIII. I know how risky it is and it will be a map that I use only a couple of times a year at the track. I will only spray the nitro for a couple of seconds to bring my MPH way up. I

 

Well, if you can afford a motor, have at it, I love to see new things happen. I just know a new motor would be a biggggggggggg strain on my finances, so im going to try and not do that right now.

 

I have two spares in the garage. I am designing the next one to optimize the nitrous. Custom cams and head work to make the most of the spray. I am not stupid. I know how dangerous the nitro can be, but I am going to using it only a few seconds per year. Just a little shot in the meth and spray it in 3rd and 4th for trap speed. I may cook a piston and I am OK with that. I will have the new motor on the stand and waiting. And No I am not one of these kids with a silver spoon in their mouths being sponsered by their parents. I am 36 years old and I do all of my own work and tuning. I have rebuilt my own tranny and I will be building the motor myself too. I have a little side business out of my garage doing custom powder coating and ceramic coating that helps pay for the evo habit.

 

Sounds good to me, im just a 19 year old kid who fell in love with nitrous at age 15 when I bought my first kit to install on the rodeo I learned to drive stick on. Nitromethane sounds interesting, but I would end up spraying it way to often and damaging something serious, and like I said, although I could buy another motor if I really needed to, not exactly something I feel like doing.

 

I need a 50 shot. Without having to search, (that button broke off my computer today) best kit is progressive wet system? Zex or NOS. What is the safest bet?

 

Im right there with ya mate. I got my first nitrous kit when I was 16, and it was installed on a practically bone stock 91 Integra. I started with a 50shot... and got stupid. Lets just say: 2 tranny's and a motor later, I had the motor fully built, with a Drag G2 T3/T4 and a 150shot direct port. Mmm, it was a monster!

No basic kit will be a progressive setup. Wet is the only way to spray nitrous. Ive installed about a dozen kits or so, and had the best experiences with NX (Nitrous Express) kits (in terms of shot to output, probably due to the better flowing solenoids). When I blew my Integra, I was running a NOS kit. Ive also installed a few Zex kits, and I do like their control box. Makes installation clean, but there is practically nowhere to hide it.

A 50shot on a bone stock or lightly modded Evo is fine (Just dont be stupid... seriously). I personally used the Jacobs Electronics' Nitrous Mastermind... which is a progressive controller. Its an excellent controller as it can ramp nitrous how ever you please. Plus it has a built in nitrous cut if fuel pressure is not present. It also monitors RPM and WOT so it knows when to start spraying.

Ive also installed the Mastermind on a 2 Stage, plate nitrous injection, (happens to be on a 67 Chevelle with a built 350.. and spraying 300hp in Stage 2!) and it worked awesome.

Good luck.

 

Thanks for the input. My mods are in my sig. Just waiting on the "Green" turbo, then I will be ready. Some have told me, (who are pushing me to try N2O) that if the tune is A1 on pump or racegas, then you can shoot Nitrous. Shouldn't the nitrous be sprayed while on the dyno?with the tune?

 

never.^^

 

well i have 03 evo with basically all the bolt on's and i tuned it myself, and i might run a NOS wet fogger kit where it just sprays in the uicp and plan on maybe doing a 50 or 75 shot....and plan on getting a fuel pressure switch and a window switch for only WOT starting in 2nd gear...and i plan on retarding the timing a little when i start spraying and then tune it and increase timing until it starts knocking a little....would i be fine with this set up? o and i plan on running it both on pump and race gas....about 23-24 pounds on pump and about 28 on race....some people told me this is just fine and if i dont run n2o all the time like daily, i'll be fine...

 

Well, I have something like 8-10 full 10lb bottles through my motor. The motor just rolled past 67000 miles today, and its running perfectly. The best way to tune for nitrous is to tune your AFR's perfectly off bottle, and then add the nitrous and use different sized fuel or nitrous jets in order to perfect your on bottle AFR. For plugs I would recommend BPR8ES copper's gapped at .24mm. Tune your car to where you want the timing, then back it out like 5 degrees, and slowly add it back in until you get knock, and pull it back out to keep it from knocking.

 

bingo! that's exactly what i planned on doing! i tune evo's and like to do it as that i make the afr's about 11.0 to redline and advance timing as hell because i believe timing makes most of the power, so i guess my afr is perfect now to what i want it to be so i'll just retard the timing, so now, is it fine to run it on race and pump gas, i heard yes, i heard no...i believe it's fine as long as you have to different good tunes for it... and it says in your sig kartarailed that you have a 100 shot...wow isn't that kinda pushin it lol

and also, i have atm at 10lb NOS bottle filled up, so when do you know exactly when your low on nitrous, can't be by feel, there's probably some gauge out there correct? the nitrous pressure gauge maybe? and i know recommended is between 900-1000 pressure, so what pressure would suggest that you're a little low...600-700? thanks