Lately I've been considering NOS again, but the many threads on the subject seem to be filled with controversey as well as confusion. Direct port, wet, dry, 50 shot, 75 shot, $500, $5,000...the list goes on. How about we hear from just those peeps that either have extensive knowledge about Nitros or the peeps that actually have it on their car. Many members are interested (judging by the # of threads), but there is no definitive answer on which kit to get or the correct hp shot. Can we clear this up once and for all? I'm interested in adding a section in the FAQ just for this. Thanks.

Andrew

 

Well, I don't use nitrous on my S2000, but my friend and I used it briefly on his civic. Fully built motor, 10.5:1 comp, J&S Safeguard, etc. We ran it rich as hell with a 50 shot dry for a while, with questionable damage to the engine, a 75 wet shot briefly, and a 50 shot dry briefly. After a few weeks of this, I believe it was number 3 that had about 20% leakdown. We followed all the precautions, were very careful, and it still trashed the motor - so my vote goes against nitrous.

 

Thanks for the reply REV, you're an experienced tuner and I'm glad to have your comments. Now, where is UL when I need him?

Andrew

 

I have my NOS kit since 5 years now and already put it on 3 diff.
cars(civic 16v,crx vtec and civic vti) and never broke an engine.
But on my last civic after 6 month used i had to put 1 oil litre all
2000 km !!!!Then,i don't think you can brake your s engine but
it is certainly not very good for him.I don't consider to put the
NOS kit on my S for the moment.

 

Interesting...

 

I think what we're getting at here is that the F20C is not your run of the mill Honda engine. I thought alot about going with a direct port setup like I had on my Prelude for a number of years but thought better of it due to the F20C. In addition to which, the amount of torque generated with nitrous brings up questions about the strength of our drivetrain. I have seen (on this forum) one of the members running an 80 shot direct port setup on a progressive controller. This is DEFINITELY the way to go if you want to juice the S. Direct port ensures equal delivery of nitrous and fuel to each runner and the progressive controller should eliminate most of the strain on the drivetrain.

 

The fact that you had to keep adding oil is indicative of trashed rings (same as on my friend's car). His didn't burn anywhere near that much oil. I hear a lot of people saying, "I've used nitrous since before the car was invented and I've never had a problem!" But when you ask these people when they last checked their compression, or even looked at their spark plugs, they scratch their heads and don't know why you would bother. You can't say you've used nitrous without a problem if you haven't checked for problems. Hell, on my friend's civic, we wouldn't have known the motor was trashed yet, except that we were looking at the plugs aobut once a day and checking the compression all the time and we saw it went to hell in a handbasket once we ran the juice through it.

I keep nitrous away from my car.

 

Good points guys, but I still have questions...

Can it be hidden from the dealer?

Can it be undone to where AHFC can't see that it was ever there?

Can I run a lower hp charge and be safer?

Do I need a new fuel pump, or is the kit plug and play?

Does it take a rocket-scientist to install? Special tools?

These kits are about $500 bucks, no? Isn't that the best "bang for the buck" for our cars?

What is the major problem with running NOS? Is it leaning out? Can I purchase something that will tell me of this problem before it starts? AF ratio guage?

Thanks again...

Andrew

 

$500 bucks would definitely be for a dry kit which is not a good idea. I know it's been done but that doesn't make it safe or smart. When playing with nitrous (or any power adder really) you need to take into account how much it would cost to fix it, worst case. I've been shopping around for a used F20C for a while now and it's not like replacing a B16 or 18 series motor. There isn't much of anything in the S2000 that's inexpensive to replace, keep that in mind.

 

Thanks derryck, I was just wondering if I didn't get too cheap with short-cuts, and greedy with high hp dreams, if it would be safe. I really haven't considered NOS as an option until lately because of the potential danger and horror stories, but there are a lot of people that use it with great success...I just want to know how to get that success and weigh the pro's and con's. I appreciate your input.

Andrew