How do! Not sure why you'd think i'd get annoyed with you? There's nothing wrong with a little erudite debate, eh?
However, I would argue against your assertion that "nitrous systems have a bad reputation because the margins of error are so small". So long as you pick your jet sizes propperly there shouldn't be a problem. Nitrous systems have a bad reputation because any numpty can "have a go" for about £300 and have destroyed perfectly good cars through their own ignorace and stupidity. It's when people who don't understand how an engine works, let alone understand nothing about how nitrous oxide has an impact on the combustion cycle start messing around that problems happen. Either that, or, those that do understand, try and push the envelope a little bit too far.
There's a lot of smoke and mirrors around nitrous use. Unfortunately, much of the issue is that everyone's heard a horror story which over time becomes an urban myth. The uneducated will tell you that 944's are rubbish and 911's are awesome. Yet, those same people with such opinions have probably never driven either.
There is absolutely no reason why a bog stock 944 engine in
good condition could not take a small 50 shot without any problems at all. Infact, so long as the engine isn't in the red line, you could keep your foot hard down until the bottle ran out of gas. Such a small shot has a cooling effect on the inlet charge and therefore negates any detonation problems. It's when you get into bigger shots of gas that things start getting complicated. For example, if you were using a true 200shot (by true 200 shot I mean 200bhp at the back wheels the HP rating on the jet doesn't neccesarily equate to the actual power increase at the road wheels - another common misconception) then you'd have yourself a bit of a problem...
Imagine that 200 extra bhp suddenly hitting the back wheels - well the tyres aren't going to hold out are they? She's going to spin up and step out from the rear in a big way. In this instance, you'd have to use a progressive controller to gradually turn up the nitrous boost over a few secconds. You do this by pulsing the solanoids with an electronic progressive controller. You also have the issue that different substances move at different rates - there is the risk that dumping a large shot of gas into the inlet tract will make the engine run lean momentarily which would then lead to detonation. You get around this by picking your jet sizes carefully, using a progressive controller as mentioned previously or having a 2 stage fixed hit system whereby you fire a 100 shot and then fire a seccond 100 shot or a combination of the three. However, i'm probably complicating this post more than it needs to be now...
I think so long as you can be bothered to do the neccesary research, it's no more dangerous than running a turbo or a blower. There's an awful lot of rubbish talked about nitrous. Having worked on and driven a few cars that run substantial amounts of gas I can say with authority that time doesn't seem to slow down, neither does everything go all blury like you might see in the movies, hehe!
I do also accept it's probably not going to be of interest to the vast majority of people. However, when we're talking about small shots it really is cheap horsepower.
Certainly interested in your idea of changing out the diff? I wasn't aware that you could get different ratios? I thought it was N/A or a Turbo back axle and "that's yer lot", so to speak?
