Fishey

I was just wondering if it has been done and with what sucsess? I know that they make kits for the N/A 944 but nothing is mentioned about if that includeds the higher compression S2. I really think that N02 would be a great upgrade if somehow it could work properly anyone know of any SAFE kits that would be avalible to use on a S2?

mmmbeer

We had a double nitrous oxide system on the 968 engine before we decided to turbocharge it. It worked very well, no problems at all. The nozzles are exchangeable, so you can get as much or little power increase as you want. The important thing is to get the fuel nozzle the right size to get the right fuel/air mixture. A Fuel/air meter (lambda meter) is almost a must to do so. The only thing that could ruin your engine is if it does not get enough fuel. The knock sensors will retard ignition timing if it senses knocking, but you should use that as a safety only.

We tried various nozzles and ended up with something like one 70HP (from 3000rpm-rev limiter) and a set with 80HP nozles (from 4200rpm-rev limiter). This totals at an extra 150 HP to the max HP figures. And it felt really fast.

I say, go for it! No problem at all.

Regards:
Eirik Kvello-Aune
<a href="http://www.diateam.no/porsche" target="_blank">www.diateam.no/porsche</a>

sweanders

I think that most people consider NO2 cool, but don't want to risk their engines.

If I had a spare engine and could afford blowing one I wouldn't mind trying it.

The thing is that you will sooner or later run out of NO2 and filling the bottles is pretty expensive..

Fishey

So let me get this right. I can use No2 safely nice. Did you have altered internal's or stock internals? Also I was thinking of useing one of those "one size fits all No2 systems for a Inline 4." Like a single stage 50 shot or something. I just wonder about Dry, or wet. I know the diffrence I am just wondering witch one would be safer for the 944. Hey if you really want to help me out make a list (and were to buy the stuff) includeing everything I need and send it to me.. (remember I am only looking for a 50shot)

IMB951

Its N20, not NO2. And I'm almost failing chemistry, shame on you...

Safe or Unsafe, nitrous oxide increases stress on your engine, plain and simple. Stress leads to wear, wear leads to... <img border="0" alt="[icon501]" title="" src="graemlins/icon501.gif" /> Just something to consider. It doesn't always happen that way, if you set it up right it might be flawless, who knows.

I swear up until the fast and the furious came out and glorified it into some big bottlerocket no young people even knew what the hell nitrous was.

As I always like to say, theres no replacement for displacment

SamGrant951

well if you dont get a wet system you had better have an alternate way of getting the fuel into the engine (piggyback,etc...)

Ethan

Anybody care to give me a quick run down on wet vs. dry? I've heard them both before but don't know the difference. Thanks
-Ethan

JohnA944

A wet system is where the fuel is injected through the nitrous nozzle. A dry system is where nitrous is injected through the regular fuel nozzle. A company called Zex makes an "automatic" sytem where it injects N20 at full throttle when armed. They make wet and dry systems.

JohnA944

Here is the link to Zex site <a href="http://www.zex.com/store/merchant.mv?Screen=CTGY&Category_Code=NX" target="_blank">http://www.zex.com/store/merchant.mv?Screen=CTGY&Category_Code=NX</a>

mmmbeer

Bottle changes are regular when using the system actively. That is why a turbo conversion is the most convinient way to go. Check in your local area how to do the bottle changes and for how much. The most cost effective way is probably to rent a large tank to have in your garage. It holds enough gas for about 10 bottle changes if i remember correctly.

You must have additional fuel delivery to make more power. This is achieved with a wet system. A dry system relies on the cars management system to increase fuel delivery when using the nitrous. That requires an aftermarket management system

So to the physics of wear and tear. The real factor for wearing down a engine is if something is out of spec, like wrong fuel mixture etc That can kill a engine. Adding fuel/air to an engine for increased power will also increase the wear of the engine when applying full power. That goes for a 944 turbo engine as well, do you think the 944 turbo have stronger rod bearings or piston rings than the 944?

Ask your self: For how many miles will you be running the car with the nitrous applied (full power with 3000rpm+)? Whenever you do that the wear will be incresed a bit. For normal driving it is the same.

Eirik Kvello-Aune
<a href="http://www.diateam.no/porsche" target="_blank">www.diateam.no/porsche</a>

*Michael.*

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by TarHeel 944S:
<strong>As I always like to say, theres no replacement for displacment</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Yeah there is...boost!!!!

jp944

Wet is definately the safest way to go. Unless you're running an aftermarket ignition with a soft rev limiter, you'll run the engine dangerously lean if you bounce off of the stock rev limiter with a dry kit. The best way to go IMHO is a wet kit with a fuel pressure cutoff switch, aftermarket ignition with soft rev limiter AND an rpm window switch.