Porscheman101

Saw this on ebay. I thought that you couldnt put NOS on a 944 turbo because of the compression. But why would you even need to put NOS on a 951!

<a href="http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2416060727&category=6434" target="_blank">http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2416060727&category=6434</a>

Some peoples kids!

adrial

Tanning...anybody? :-p

Who knows...some people dont know any better...

You can put NOS on a 944...but again...why?

porshhhh951

carter...the guy i bought my car from had nos on his race car....and bragged about how fast it was .....but i personally think its stupid...why not just turn up the boost a few pounds if you need the extra ponies on tap!

Porscheman101

Lol... Tanning..I think they were trying to say something with those pictures.

I just cant get over the fact that they would put NOS on a 944 turbo. Just crank up the boost.

TonyG

Unfortunately, you can't "crank up the boost a few pounds" to equal what you can do with NOS (even at a "mere" 50HP jetting.... let alone a 150HP-250HP progressive triple stage setup....).

NOS is no less reliable than a turbo or supercharger when calibrated properly (like a supercharger or turbo application has to be properly calibrated).

The only down side is that you "run out of boost, when your bottle is empty!". And in the case of NOS, it aint' gonna last long.

Good for drag racers, but horrible for the street (again.. simply due to the fact that the the bottle... 20lbs for example, doesn't last more than 2+ minutes of run time.....).

dmoffitt

with the proper engine management / fuel control / nitrous control, n2o (or NAWWWWS as some people call it. come on folks, NOS is Nitrous Oxide Systems aka a brand name, like kleenex), you can easily and safely use a small shot to help make up for turbo-lag (and thence run a bigger turbo but maintain low-end grunt) or as most people do it, you can turn up the boost, AND run nitrous, in order to cool the air charge significantly, giving you more power.

a 50-shot, plus 15psi (well, 1 bar) is equal to approx 80-100 crank hp (boost+n2o = impressive).

i do believe there are often issues with track cars (mainly due to the safety of bottles? correct me if i'm wrong, you just don't see many race cars with nitrous) - but these systems can be awesome on a street / drag car (esp. with a multi-level boost controller. if your car is properly set up, just hit a button and increase the boost xxPSI and cool it with nitrous. bingo, you just shaved 1-1.5sec or more of your ET, or blew the doors off that guy who was pulling on you. no this isn't TF&TF, and no i'm not encouraging speed contests on the street. but that's what this stuff is good for).

another use can be to cool the intercooler... but that seems to be a waste, as other, cheaper things can be sprayed onto an IC to reduce air temps...

Sami951

I think nitrous is a bit like viagra, just a temporary solution... in a way even a turbocharger could be considered as band-aid for a poor engine, but at least once it's there, it's not going to run out & you can use the power whenever you feel like it.

Of course sometimes you just have to beat the other guy, but I don't think it's ever worth the trouble to use these kinds of "tricks". In fact, if I was to drag race some ricer, lose, and then find out that the he only got me because he had NAWZZZZ, I'd laugh my *** off...

Jfrahm

With forced induction cars, the cooling effect of N2O can give you benefits beyond just the "shot" rating. In other words a small shot, like 50 HP can deliver more power. It is also used on big HP turbo cars to overcome turbo lag.

-Joel.

special tool

Anybody know if I can put nitrous on my 85' Honda 250 trike?

<img border="0" alt="[bigbye]" title="" src="graemlins/xyxwave.gif" /> <img border="0" alt="[burnout]" title="" src="graemlins/burnout.gif" />

MM951

For trhat trike your gonna need a 400 shot =)

MM951

hahhha

adrial

Isn't NOS illegal at most/all road race courses??

Porscheman101

I have heard of water injection in the 944 turbos, But i am still unclear at what this does. It just cools down the air flow right?

But what happens to the water or form of water?

Yeah, I couldnt ever think about putting NOS on my car. I would just worry about it more than it would actually be worth using. Plus I would have to drive about an hour to get some.

Danno

Do a search for "water injection" and you'll find a tonne of stuff in the archives. Water is used because of its high molecular weight and heat-of-vaporization. When it's vaporized by a high-pressure injector into the intake stream, usually after the intercooler, it can cool the intake air by an additional 60-80 degrees. The actual amount of water injected is very minimal. But the cooler air is denser and you'll get 6-8% more power by being able to cram more of it into the combustion chambers (provided you program in the additional fuel to match).

alkemyst

N20 to increase boost on a turbocharged car is stupid really, fix the boost-end with a better turbo and be safer, more controlled, and done with it.

N20 can be used to cool the intercooler though...most just have the Fast and Furious terminology in their heads and think if a movie mentioned it, it must be the way to go <img border="0" title="" alt="[Wink]" src="wink.gif" /> .

Water injection can be used to control detonation...I don't think the added maintenance is worth it on a street car if you are going to rely on it to keep your engine from blowning itself apart...but on the race it is a cheaper alternative to other things.