I don't know how it was rated. Doesn't really matter to me what a manufacturer says. GM rated LS1's at 305hp and we all know that's horseshit. It's jus NX's basic GM EFI wet kit (Iceman kit?).

A4 with the stock converter. 11.59 @121mph on a 1.85 60' on Kumho Ecsta 712's and I weigh 250lbs so raceweight was up there.

 

damn it, there's that whole 60ft thing again. and you had everything stock on the car right? stock exhaust from front to back, stock everything. you're about 35lbs heavier than i am. what time of year? summer in 100+ heat or winter with 40* weather? also, what track? is the track under sea level? mine was here in florida at bradenton in june in 100+ weather. but now we're getting all nit picky about it.

 

well according to 383LQ4SS i' m not. as i've said, i launch at idle, hit the button at 2000 rpms in 1st gear. i've tried foot braking it with no change. i'm willing to let someone else who gets lower 60fts to drive the car and see what they can do.

you've done mid to high 1.6x 60ft with stock exhaust manifolds and cats?? i've been holding out on some prototype headers that bassani is making for the f-bodies. headers will make a 60ft difference. it's hard to get the exhaust flowing initally with stock manifolds. once the exhuast starts flowing, thats where scavenging takes over and pulls the exhaust charges out. been there, done that one my 79 z28 years ago. put a comp cams 280h in the 350 i had with stock cast iron manifolds. they sucked the low end right out of it. called comp about it. they said put headers on it. holy crap what a difference. this was back in the day when i didn't know any better. now. will i get 1.5x 60ft on 17" DRs? doubt it. i'll need to move up to something alot better. that's my take on the whole stock manifolds vs headers to get lower 60fts.

 

Your pretty good if you can watch the light and your tack and activate the system at the same time. I have a WOT switch and window switch set at 3000 rpms, I stall my car to 1800 rpms and when I launch(full throttle most of the time) I'm so close to 3000 rpms that my nitrous is right there about a foot or so off the line. Bam 1.50 60's consistantly. So I don't think that you are launching on nitrous either.


Yes I did. One of my first mods other than my lid was the stall. I made a few shake down run my first time out with the stall and then I busted off a 8.14 @88 w/ 1.69 60'. Later that night I ran a 8.08 w/ 1.72 60', I thought that was weird but thats how it happened.


Headers made a difference but not a hugh difference in MY 60' time. My 60' time stayed about the same but I picked up on the big end.


My 1.50 60' was on DRs look at my sig granted mine are on 15" but the MT DRs are a lot better than Nittos even in 17".

Heres a trick that I do some times when I'm on street tires I disconnect the front sway bar so it will tranfer weight better and less spinning, NO full throttle launches though. I've cut some 1.8 60's that way with street tires.

 

thanks for the compliment. now, that we have the same definition of launching on the nitrous, no i'm not launching on the n2o right at the launch. it rolls out about 40ft.

i know about the removal of the sway bar method. did it on my 86 TA i just got rid of last year for the two ls1 cars. hell, i did 1.76 60ft on 225/60-15 nitto nt450 tires doing that. it's one of those take it to the track the same way i drive it. i have 275/40-17 on the front. i guess i'm going to have to bite the bullet again and remove the swaybar. currently i'm on DRs with both cars.

 

Mid-summer.
Heat of the day around 90*.
Altitude is 600ft.
Not sure what the DA was...nothing good I can assure you that.
Track was Milan Dragway (Milan, MI)

 

NX (Nitrous Express), the manufacturer of my nitrous system, warns not to spray at under 2000 rpm in their instruction manuals. Though I won't be spraying under ~5000 rpm anytime soon because of my 1st gear lockout and the shift extension of my converter, this would indicate, at least according to NX, that spraying at 2200 rpm is ok.

To quote them directly, No. 7 in the NX "Power Tuning Tips" states, "Never "lug" your engine and hit the nitrous system, use the system at wide-open throttle only, nitrous should not be used below 2000 rpm's. If you do any of the above a serious "Back Fire" could result in engine damage."

I've read the General Rule about "never spray under 3000 rpm" also, but where did it come from? According to NX, the general rule is "never spray under 2000 rpm."

 

MRR23,
383LQ4SS is not trying to tell you what to do.However what he is trying to say is that you are giving out bad advice.Which is true. Its good that you have got by on spraying at such a low RPM.However most people will not.There are alot of guys that come to this forum to read and learn.The last thing and of the mods or myself want to see happen is someone see some bad advice and try it.If you surf the internet there are plenty of dyno footage where people have luged the motor at two low of a RPM and had a real nasty result.I have personaly helped many people in the past that has called and asked what they did wrong.You tell them what they did and ask them why they did it and they say because I was told it was ok. Just because walking the edge is working for you does not make it a good idea to suggest it to other people.The best thing is to give safe advice and if they want to try hazard ideas let them do it on there own.
Dave

 

bad advice huh??? i guess NX is giving out the same bad advice with every kit they sell. bad advice. might want to update your info. i guess NX has a better attorney than all the other n2o companies.

well, hell the safe advice would be to not hit it until second gear at 4000 rpms. or better yet, don't use it. but to use the absolute definitive phrase of DO NOT USE AT 2200 RPMS just like 383LQ4SS is just as bad of advice. then you are just lying to them. use something like while you can use it below 3000 rpms, it's not advisable.

 

Look...dont put words in my mouth or you will not be around here much longer..I promise you that!!! Check that attitude with people that disagree with you. You keep quoting what I said in the first reply and maintaining I was stating absolutes when in fact if you read that first reply I even said he could go lower.

You keep saying I am stating absolutes....you must be skipping over my posts. I fully explained my position on this matter. Go back and reread. I stated that 3000 rpm is not a magical #. I also stated you could in fact spray below 3000 rpm if you know what you are doing.

If NX sais 2000...thats fine. But what shot size are we talking about here? Spraying a 50 shot at 2000 is different than spraying a 175 at 2000. Especially when talking about a TNT kit or something that rates thier shot size the way they do. Im done trying to educate you on this matter and my patience is wearing thin.

 

well. i tell you what, i'll step down from this one as well. it's obvious that even after someone comes in here and states right out of a major manufacturers book that's it's fine to spray at 2000 rpms, that i'm still wrong.

you stopped dealing in absolutes after i questioned you on it. your hang up is spraying at 2200 rpms not 3000 rpms. after all, i quoted you more than once on that. your only response back is i didn't say the magical number is 3000 rpms. by making it capitalized, you are putting a definitive absolute on that which you say.

do what you got to do. if i get banned over this, it'll only prove that this place is a dictatorial one sided forum. i've been in bigger debates then this one.

i suggest locking this post. after all it's going nowhere from here.

 

don't guess, call NX and find out. or do i have to do that as well? most likely, seeing as it's for a LS vehicle, the kit most likely stops at 150 rwhp as they are rated at the wheels. kinda what my kit produces at the wheel.

 

1) mrr23 you like controversy dont ya? lol
2) i am going to spray my 150 shot at 1800 rpms next time out!

 

THE "DO NOT SPRAY BELOW 2000RPM" IN THE NX MANUAL IS A MISPRINT!!!!!! I REPEAT, IT IS A MISPRINT. WE ALWAYS RECOMMEND THAT CUSTOMERS DO NOT SPRAY BELOW 3000RPM. SPRAYING BELOW THAT PLACES THE MOTOR ON BORROWED TIME IMHO. I, ALONG WITH EVERYONE AT NX, APPOLOGIZES FOR THE MISPRINT AND WANT YOU TO KNOW THAT WE ARE GETTING IT FIXED ASAP.

On a side note. I am all for pushing the envelope and the current limits, but there are certain things that I don't think should be messed with simply for safety. The thing that gets me is that people try things and think they are on the cutting edge or pushing the envelopel, when really all their doing is putting themselves (and possibly others) at risk. My point is that Mike Wood (founder of NX) has done more extensive testing and R&D than probably 95-98% of the people in this industry, and consequently he's probaly blown up more motors,trannies, and rearends the 95-98% of the people that use nitrous systems. Mike, along with John Stewart (RIP) started out using/testing NOS products way back in the day and eventually went out on their own designing new products. Just about all of the recommendations made by NX, NOS, TNT, etc... are the results of years and years of running the same products that we (NX) and the other companies sell. I would highly suggest listening to them (the various nitrous companies).

Just my 1/2 cent (Uncle Same takes the other 1.5 cents)

 

1) from the looks of it, yes. it's what i live for.
2) i don't know if you are being facetious, or being serious. but, if you are serious, then if the car will hold it, then go for it. but remember, i said 2000 rpms and if you can afford it also. might actually do a 10.50. but who knows. i'll be out on the next runday sunday.

 

This statement..again shows your ignorance and lack of knowledge on the subject. If you think your gonna call NX and they will tell you exactly what shot size you can spray at a specific RPM your more lost than I imagined. There is no exact point...it will change for every engine size, every combo, every cam choice, every converter difference, tranny type, nitrous kit manufacturer, nitrous line type, noid type and so on and so on.

You will only get censored if you continue to mistate facts as you have been doing and portraying them as a safe acceptable practice that is "cutting edge" that we should all try.

NX has come in and said the 2000 rpm was a mistake So all NX users please note that. That doesnt mean its not possible to spray below 3000 rpm...but you will be on your own and you better have a decent understanding of how this stuff works and possible scenarios your setup may encounter. Some of those scenarios will lead to a mishap.



I am not going to lock this because I think its important discussion for everyone to know.

 

now, how did the legal department miss that one real important tech tip???

damn it, now i lost the leg i had to stand on.

my saying is, do what you want, it's your money. if you can afford it, do it. nothing wrong with being safe, but there's nothing with wrong with trying different things.

 

Not sure what it has to do with legality since nitrous systems are intended for "off-road use", and NX systems are not even CARB legal (for Cali people). I am 99% positive that people go into the nitrous world knowing that there is the possibility of damage occuring. However, thanks to guys like John Stewart, Mike Wood, and Mike Thermos, a big part of the errors can be somewhat taken out of the equation because they were in it from the beginning (for automobile racing) and found out-along with a lot of other racers from back in the day- what works and what doesn't work.

I agree that it is the customer's money and parts, but if they want to do things like what you are doing they need to be very clear that they are entirely on their own. However, don't tell others that it is no big deal and that it can be done with out any problems. Especially on a public forum such as this where there are a lot of new people to the uses of nitrous and the last thing they need is to be reading some of the things that have been said in this thread.

Thanks for reading, have a great day...

 

censored is another way of being dictatorial. i wonder how NX is going to handle all the cases where people don't read this post and the internet as well about getting them the corrected tech tips section of the book?

what fact an i mistating? that i spray at 2000 rpms? that i've done it on two cars for about a year now? let's do this the legal way. you say i'm not and i'm mistating facts, now prove it. do you sit in my car everytime i run it down the track? don't remember seeing you in the car? now, seeing as we are so set on this 3000 rpms thing, are you going to say there won't be a mishap?

my only beef with you is you demandingly said DO NOT SPRAY AT 2200 RPMS. then proceed to tell me and others on this board that i'm not spraying at 2000 rpms. if you don't believe me, then take time to read your own posts. and what really did get to me is telling people to take what i say with a grain of salt???? for that you can jump in a lake.

by the way, saying ignorance and lack of knowledge is redundant. as ignorance means lacking of knowledge.

i'm all for people being safe. if they want to go out and buy window switches, FPSS, retard devices, higher volume fuel pumps, bigger injectors, seperate dedicated fuel systems, etc... then by all means go out and do it. you haven't seen me go in and call them stupid for doing it. and not to listen to the ones telling them to buy all the safety stuff because i'm right and they are wrong.

you say DO NOT SPRAY AT 2200 RPMS. i am just here to counter your definitive absolute statement with whys and i do it. the you come back with 3000 rpms isn't the magical number, you can go lower. but you even say you don't know how much lower you can go. but you can definately say NOT 2200 RPMS?

i would rather you say, while it can be done, so long as you take the proper precautions, it's not recommended.

can you at least agree with that statement???? because it's obvious you can go lower than 3000 rpms. you even said so.

 

jeremy, it's kinda my way of being funny or sarcastic about it. but, think about it in legal terms. i'm on the track (off-road), i hit it at 2000 rpms and pop my motor. i go into court with that tech tip in the book and say they said i could. legally, you can't beat it. and yes, i agree that most everyone that goes into nitrous understands what can happen. but, then again, have you read some of the posts on here with questions about n2o? if there is a way to screw something up, someone will. also, what might need to be cleared up when saying do not spray under 3000 rpms, there might be a hp limit establish as well. but, then again, most kits come with a max of 150 (either rwhp or motor rating) so, if the cutomers goes beyond what the kit supplies, then it's hands off for the nitrous company.

did i say it's no big deal and can be done without problems? if i did, i'll clarify that right now. i'm pretty sure all i said was is that it can be done. and that's what i've maintained the whole time. it can be done. never say it can't be done. someone will prove you wrong everytime. after all, everyone said the world was flat. and every planet circled around the earth and not the sun.