Nitrous questions

[mp3boy1984]

I know a lot of people are against nitrous and all that, but i decided that i am just going to stay NA, put high compression pistons, , cam, etc. However i do want to run a little bit of nitrous through my car. What would be a safe shot considering what i am putting on my car? Also do i want a wet or a dry system? I know most of you will just say to save the time and money and just go turbo, but i decided that i want to be different......any help would be greatly appreciated.

 

[acidbug]

Check out this thread...

http://www.protege5.com/vbb225/showthread.php?s=&threadid=12276&highlight=nitrous

If you have any specific question post again..and i will try to help

chas

 

[mp3boy1984]

so i have to get colder sparks? i am going to assume that the denso's that i have on there won't work? what's the most that i can shoot without blowing up my engine? umm.....and i think that about does it...oh yea have you heard anything on the Edelbrock nitrous system?

 

[mp3boy1984]

oh crap, and i forgot to ask, when you spray when would be the best time to do it, gear? rpm's? and so onI read the other post and it said not in 5th and not under 3500 rpm's, is there any other advice other than this?

 

[acidbug]

so i have to get colder sparks?

Yes i would suggest NGK's...at least 1 set colder..if not 2...

what's the most that i can shoot without blowing up my engine?

I would say a 75 shot...If you have a protege5/protege...The MP3's have advanced timing so a 75shot would probably detonate...

The rule i constantly hear is don't run a shot larger than half the stock horse power...

There is one guy on this boar that runs a 75 shot and he hasn't had any nitrous related problems other than the bottle running out!

LOL

oh yea have you heard anything on the Edelbrock nitrous system?

I don't know anything about that system...or anyone who has a protege that has run it!

when you spray when would be the best time to do it, gear? rpm's?

Well when i am racing...i drop the clutch/feather the clutch at 2000rpm till red line..than switch to 2nd gear at about 3500 rpms..and shoot...all the way till 6000/6500 rpms...than switch and shoot again...etc...etc...

and so onI read the other post and it said not in 5th and not under 3500 rpm's, is there any other advice other than this?

I don't know about shooting in 5th gear...i haven't done it..i usually drop down to 4th..then shoot...and then just drive in 5th...

About shooting under 3500rpm's...well...it's up to you...i shoot around 3000rpms...

OTHER ADVICE:
1.Always run high octan fuel (91)
2.After your first run check your spark plugs and make sure that they are not white...if so than you are running lean...
3.Get a wot switch so that you don't have to push a button...it's just easier that way!!
5. Get a bottle warmer...i don't have one..and it's pissing me off...it's really cold here in NJ and when i shoot nothing really happens..b/c the pressure in the bottle is really low...so actually i haven't been spraying at all!!
6.Wet kit's will give you better horsepower and are much safer than a dry kit
7. have someone proffesionally install it for you if you don't know what you are doing...
8. Don't waist time shooting in fist gear....you spin out like crazy..and as you know...u spin out/get wheel hop...u lose out on time
9.When you test the kit...make sure the road is dry..and there is no one around...just incase you lose control for some reason...
10. Run a small shot first than work your way up to a shot you want...

dAMN THIS LIST IS GETTING LONG

11. Don't redline your car while shooting...if your rpm's get to high the pressure might cause detonation
12. GAp your spark plugs to 35mm....other wise the N20 might blow out the spark.

That's about all i can think of!!

But good luck and ask any other questions...and i will try to reply back asap...

or catch me on my email

acidbbg@aol.com

 

[mp3boy1984]

thanks a lot man, i am a little confused on the rpm's thing, but i think i can just figure it out as i go along..thanks for all the advice

 

[Dragon_Reborn]

good info.

wow, you know your $hit when it comes to NoS (thumb)

 

[acidbug]

Well i owe it to all of the boys and girls from the protege websites...their insite has been most helpful(2thumbs)

 

[mp3boy1984]

I saw in an add that they have this solution for nitrous, it looks like you put it in your gas mixture, and it claims that it will allow you to run higher amounts of nitrous without detonation. is this true? Also another question is, is there anyway to tell if you are running too much nitrous, well without detonation that is. Or do you just sort of have to guess and pray to god that it won't detonate? Also will it work with high compression pistons? or would i just have to run lower amounts of nitrous?

 

[acidbug]

I saw in an add that they have this solution for nitrous, it looks like you put it in your gas mixture, and it claims that it will allow you to run higher amounts of nitrous without detonation. is this true?

When i upgrade to a 75 shot this summer...i will deff..be purchasing it!!

But i don't know if it works or not!

Also another question is, is there anyway to tell if you are running too much nitrous, well without detonation that is. Or do you just sort of have to guess and pray to god that it won't detonate?

I don't understand your question....


Do u mean...that the mix of n20 vs fuel??? Or the shot???

please clarify!!

Also will it work with high compression pistons? or would i just have to run lower amounts of nitrous?

Unfortunately i don't know that answer....

chas

 

[xXMP5Xx]

i thought i would add a little bit......as far as being able to tell if u r running too much nitrous for your motor to handle, without blowing your motor to find out the only other way i can think of is what acidbbg said check your plugs and if they are white then lower the shot u r using. also i would recomend getting an air/fuel gauge. when i had my civic i was running a 65 shot and that was a dry shot. and i dont know how they r less safier than the wet shots r. i am not saying that they arent i would like to know more into that actually. i know that with the dry shot it will tear up your throttle body through time, but other than that i am not sure how it would be more harmful. i have also heard that the wet shot is more dangerous b/c it can (not always) puddle in your cylinder and detonate your engine. i would also recomend getting the WOT switch and do not let your car bounce off the rev limiter while u r spraying!!

 

[xXMP5Xx]

oh and the question about having high compression pistons, usually when u build your motor for nitrous people use low compression pistons. but whether or not u will be able to handle a 75 shot with high compression pistons i dont know the answer. i know that it will depend on a lot, your cams, cam gears, pretty much anything that effects the amount of air flowing through your motor. would u plan on retarding your timing at all?? and also just some fyi which might stur up a debate nitrous (to some people) is considered forced induction.

 

[KYREDP5]

would u plan on retarding your timing at all??

We can't retard our timing. Controlled by the ECU.

 

[xXMP5Xx]

We can't retard our timing. Controlled by the ECU.

ahhhh......thank you i did not realized that (hi)

 

[KYREDP5]

ahhhh......thank you i did not realized that (hi)

No prob. IIRC that's why some of the mp3's are having problems with detionation under boost, and have been swapping out for P5 ECUs due to the slightly retarded timing.

 

[acidbug]

also i would recomend getting an air/fuel gauge.

I heard that it wont help much...b/c the guage is not accurate!!

when i had my civic i was running a 65 shot and that was a dry shot. and i dont know how they r less safier than the wet shots r.

It's much safer to use a wet kit on your engine than a dry kit...this is the word of everyone that i have talked to...

b/c w/ a wet kit it shoots fuel in at the same time so you don't run into any lean conditions!!

have also heard that the wet shot is more dangerous b/c it can (not always) puddle in your cylinder and detonate your engine.

I have hear of this problem happening...but the new nitrous kit's have a shark nozzle which help to prevent that from happening!

would also recomend getting the WOT switch and do not let your car bounce off the rev limiter while u r spraying!!

That's what i have...very valuable tool...!!!

I am looking into alternative methods of running a larger shot b/c we cannot retard out timing...

From what i heard is that if you connect a cannister or some time of bottle to the fuel solenoid...and put racing fuel in the cannister...you can run a larger shot...but don't quote me on that...i am still trying to gather information!!

I go on www.probetalk.com/forum allot...and they have lots of info on n20 setups..

Chas

 

[Patio]

you go acid

the edelbrock kit is a wet kit, so its good buyif you want it

and the bigger shot and high compression you may want to look into an aftermarket ecu for fuel timing and all that, other wise just do bolt ons and a 75 shot and your in the 14's

 

[SpeedFreak]

PATIO,

Question about timing, couldn't you alter the voltage from the knock sensor to pull a couple degrees?

 

[Patio]

i wouldnt bother messing with the timing really, i learned the more i mess with something the more i fukk it up, lol

 

[acidbug]

Nitrous/Boost w/ advanced timing equals BOOM!!!!!