You would love to see him nuke it? If Frostie nukes his would that make your day? so very very lame..

Sounds like Frostie knows what he's doing and has fun doing it - maybe Tommy should talk to him.

Common Turbo Carrera....I'm sure if you "truly" own a turbo carrera your smart enough to read everything I wrote before making a ingornat post like that.....

I'M SURE....Frostie has made the needed motor mods to support his NOS System, therefore he should NOT blow it up.....The author of this thread HAS NOT, and seems to want to strap on a bottle and blast it with 100 shot.....

I'm all for seeing the AUTHOR hitting a stock 3.0 litre with a 100 shot.....if it blows, I'm SURE we would all love to see pics....

P.S. do you have a business in the front, party in the back haircut?

Look I don’t claim to be a nitrous expert, nor do I dislike turbo's/superchargers. I just wish we would approach the topic of horse power scientifically, without emotions swaying our judgment. Nitrous if done write is not cheap, all the safety devices add up as does your nitrous gas bill. All the ways we try to get more power out of our engines have there pros & cons and if abused they will all “nuke” our engines. There is no way that 90hp from forced aspiration (turbo/supercharger) is any safer then 90hp from Nitrous. I mean when you look at it scientifically nitrous runs cooler then forced aspiration. And basically our engine is a heat engine converting chemical energy to thermal energy to mechanical energy.

Please correct me if I’m wrong, constructive criticism is always encouraged here, were all here to learn, but please no crap about drag racing our Porsches being too good for nitrous.

Re: There is nothing wrong with putting Nitrous in a 911
 

They aren't the same thing! Nitrous is only reliable in short segments at a time - you can't say that you can run a 911 engine as it was meant to run (around a road course) consistently when you have NOS. It's annoyingly inconsistent, and therefore unsuitable for long term use. It's not nearly as reliable as a modern turbo - which run for hours at a time and it's proven so the comparisons are invalid.

Nitrous systems are tremendously finicky - as you have noticed, even the bottle emptying is gonna change the AFR due to internal pressure - hypersensitivity to gas, timing, temperature is what makes Nitrous a PITA. The plusses are that it's CHEAP, and for domestics it's basically a proven technology for drag racing (of which the 911 isn't suited for IMHO)

Guarantee you can't take your car out on the track and run it as it's supposed to be run, WOT all day, every day. It gets hot, you bottle empties, air bubble, etc. etc. You'd break something within 30 seconds.

rjp

Sorry bud, I was a 'lil rude there.. not you though, great posts.

I don't own a turbocarrera(it's actually a 58 Beetle with a deer whistle behind the driver's rear wheel) and I have an iroquois do.

Back to Tommy5305’s question about “100 shot nitro” if you put enough into it will work great if you use a $500 dry shot system it will blow up.

Good point Randy but say you have a done up turbo engine (which I’ve never had) you can’t stay on the throttle for extended periods of time either? I mean with such a light car and so much power…unless you are on the salt flats…

I really don’t think nitrous is that cheap as every one keeps saying…I mean it can be cheap but so can anything you try to Mickey mouse together.

I'm actually thinking about fogging my Poncho - it's a good way to retain day to day torque since you don't need torque killing radical cams and compression to make HP. This is a street car that only will go in a straight line henceforth possibly NOX

But where's the fun in that? Noisy electric pumps, lumpy cam, high compression, ringing headers - I love that stuff. Nitrous would be a neat add but I don't want to worry about grenading a rare engine if it farts- I'd be in it constantly.

rjp

Frostie,

I agree with your stance, I really can careless NOS vs. Turbo/Supercharge....I was mearly offering up my "impression" of what a porsche 911 has always been to me. I grew up with 911's in the garage I could not touch, I have 2 in my garage that my kids do not touch....to me they are prestigious cars...

Nothing against you, your car, or your choice in HP upgrades. you made a few valid points though about the costs in "juicing" a 911. My impression made by the author of this thread was he wanted a quick fix to his problem and he made it seem like he wanted to strap up a bottle and go. You on the other hand have obviously spent the time working with your own set up to know your car and know its limits.

I for one an not your "typical" Porsche owner either, people tend to think I stole mine when I pull next to them at a red light and they see all my tattoo's. I love that though, I'm young tattoo'ed and live in the nice neighborhood...they look at me like I dont belong until I buy the house next door to them.

I define myself as a "Porsche traditionalist", well until I bought a 76 912 that was converted to look like a 964 or Carrera 4 to put a 3.6 litre in it...so now I'm a little more of a "liberal traditionalist".

Frostie....

FYI, since the boom of the rice racer cars....you can pick up a NOS system for about $450.....

I think it is a nitrious express system

The Germans had N2O on engines before anyone.. do a search on the net for German GM-1 systems.

Frostie is doing his sytem the correct way. Just bolting an NOS system on and hitting the button can be disasterous.

Turbos are so reliable they're showing up more and more OEM appications. A 930 can handle WOT consistently, they're on the tracks aren't they? The technology is there to make positive manifold pressure reliable and consistent A nitrous system is only meant to be used incrementally due to the fact it's hard to keep operating consistency, and you're limited to your bottle - henceforth it's suitability for 1/4. -

YOu're right on the point it isn't cheap to make a NOS car last, but it's still cheaper than a retrofitting a turbo HP dollar to HP dollar in most apps. To make anything live for extended use under NOX requires very strict engine management (timing retard, strict control over fuel pressure, etc) which on a car like a 911 all I can see is electronic engine management. Then anything's possible assuming you keep head temps in check.

rjp

Sounds good ‘Sellingporsche’ we all have our own idea’s of what a Porsche 911 should be, how we would modify it ect. Many like to stay ‘pure’ or traditional or stock, others…like me have heavily modified possible even bastardized our cars to our idea of the ideal 911 (at least I never put in a chev V8). When I got my car it cam as a huge pile of parts on a trailer with tons of ‘stuff’. The only reason why I’m so much into Nitrous is because the last owner bought everything to do the job (well almost everything). After a little research I’ve decided to complete the nitrous project. I even have a 10lb pull cord halon system to install. A mountain of stereo equipment I will NOT install. My goal is to have her put back together by June, it’ll be fun to post the pictures.

As for guys blowing there engines with Nitrous I was following a thread awhile back about a guy with a newer 911 who was running a dry system (nitrous without the addition of more fuel) and he kept cranking it up until he got to 90hp before it blew. It was a sad thread but it sounded like the guy had money to blow, I think anyone who knows the difference between a wet & dry system would have seen this coming.

Randy,
ANY turbo car is fun to drive... the thing you didnt mention though is that if the money was spent for the proper turbo set up to be put on the car it opens the door to many other "cheap" turbo upgrades like boost contoller, larger turbo, various combinations of a/r sizes and so on to get even higher amounts of boost.

None the less "different strokes for different folks", everyone has their own way.....

Steve
"My name is Steve and I have approved this message"

Pat Musi
 

Even the fastest street car guys have problems and you know they aren't using off the shelf kits. Sceenes like this are common with higher HP applications. These engines are totally built around this with pricetags approaching $100K for the engine and R&D to make it live and the NOX systems are direct port with dedicated fuel and multi stage timing control.

Not really too relevant to 911's but I like the pic..

I think this was an air bubble

http://forums.pelicanparts.com/uploa...1104050934.jpg

True enough Randy, I see you are from Seattle, was there Chevy Turbo Sprints down there (not sure some cars are a little different in Canada). Okay stop laughing at my example but here me out…they were a mass product cheap car. They went like a bat out of hell…but they are all burnt up now in comparison to the naturally aspirated Chevy Sprints (yah yah stop laughing at my example) all the old sprints you see around now from that era are only the naturally aspirated ones, the turboed ones are all no longer running.

I think this all goes back to the more hp you get out of your displacement the shorter the engine life. The only high hp engines that I can think off that last a long time are the domestic large displacement engines.

damn it you guys type fast, i feel like I'm always 2 sentences behind in our conversation lol

what do you mean "air bubble"?

I thought only Canada had the real Turbo Sprints (Suzuki's) I heard you can wring one of those good.

Can't cost too much to redo if you destroy it. That's one reason the Honda kids are so bold - if they destroy an engine you can buy a new one anywhere for "$200.00". One of the local kids with a bad ass (oxymoron coming!) Civic told me that one night. Damn thing had a huge turbo and intercooler on it. Also, 45 minutes to swap the engine he claims.

Why can't the cool cars be that easy?

rjp

An air bubble in the nitrous line caused this. Big 'ol boom.

When you see these cars pulling up on the line, you'll notice what looks like mist coming up where the base of the windshield is, they're purging the NOX system of whatever air so this doesn't happen as often. Looks like they're trying to clean their windshields.

rjp

Hhhmmm I was always told that was for a ‘fresh nitrous shot’. Also to vent any stored pressure when you are shutting your beast down for the night. (any leaking nitrous past your solenoid on a parked engine upon starting will have a very destructive explosion)

I can’t see how a ‘bubble’ could be dangerous? Is the bubble air? I would think this would put the engine in a momentary very rich state that would rob power…black exhaust but not a lean explosion?

Could you shed some more light on this for me…this is news to me..

Randy,

I'll tell you from experience (not my own) that $200 and 45 mins is far from happening in a civic...NOT that I think you want to try it out for youself. A really close buddy of mine owns a Civic that runs a legitimate low 10 sec quarter mile, did it at Pomona Raceway...

This Civic, much like Frosties 911 has had several hours of tuning prior to zipping it out on the street. The huge BOOM of rice racers has brought many high school age kids to think they "know it all" for buying a cheap turbo kit and putting it on the car. The part where they come up short is understanding a 1.5 litre can only take so much boost before melt down.

$200 for a honda motor MIGHT get you a lawnmower motor, but a car motor...no way...

BTW Chevy Sprints were the ugliest car I have ever seen, but by all means fun to boost up and blow up....lol Good Call Frostie...lol