666DAN

Oh OK....I see him a lot out this way.

I came to the decision if it wasn't an R34 I would have sold it and bought a turbo one...even getting the RB25DET Neo was a scary price. Just a few things you have to weigh up...haha saying that I feel like a change of car now

Would that have been out Jimboomba way? I always think he's copied me Well I have had the plates since '98

Just a rough calculation: Turbo + manifold + pipes + intercooler + injectors = $1000 E-manage + software + harnesses = $750 Install + major problems = $1300 Fuel Pump + Platinum Plugs (7 heat range) = $600 As I was putting R33 gear into an R34 there was some difficulty with fitting the front pipe from the turbo….not much but that added to labour costs. Also it required a few fiddly bits to be located for PCV pipes etc etc. If you basically get all of the parts from an R33 RB25DET the install cost will be dramatically reduced. Basically you can do most of the work yourself…only the water and oil lines & getting it engineered would need to be done by a mechanic. It’s a bit like a Lego-set as everything seems to bolt into place You can use any aftermarket computer you like…unless you have an auto then e-manage is probably your best choice. Also keep in mind, my brakes are fairly decent as is, the 34 N/A has a 5 stud hub already also as I have the tiptronic model, I share the same gearbox as the GTt.

paul: The overall bits that I stuck on my N/A engine were- R33 turbo & piping R34 intercooler GReddy e-manage R34 injectors 550hp fuel-pump My pistons are still the stock ones...running 10:1 compression @ 6.5Psi I've been looking at Trust metal head-gasket to drop the compression & some decent head bolts....maybe a little bit down the track. But then I'll be able to run some higher boost. As it stands now it's got a very effective yet conservative tune...but it was definately worth the money. I may try to get a dyno run on Monday....unless anyone knows somewhere that opens on a Saturday???

You came to Brisbane and didn't go to Family (nightclub)!!!

Actually something interesting I'd like to know...what is the timing first thing on a cold start, Just after you turn the key?

BTW paul I'm trying to get my car to a Dyno...just snowed under at work etc.....let's just say I can feel the difference

I think Knore has noticed the Supra that caught my eye Yeah I was looking at a late model one...once again tiptronic is a must. NA_R33: Hmmm turbo a 33.....haha nah I'm not going backwards with this But hey I'll be selling within a year...so I'll let you know when the time comes if you're interested. I've been considering the GReddy kit for the 350Z...it doesn't look too shabby, comes with my favourite e-manage too! Dan

You need to do the same equation I did Initial Car Cost + Turbo Cost = $$$ if $$$ is less than the cost of getting a Factory turbo version of your car, then chances are it's a good idea

You do need help Merli...seems you can't even comprehend percentages based on O2 and O. I was only saying that's the way nitrous worked...but you got your arse in your hand and decided to get a bit personal with it....get over yourself and just accept it when someone is actually trying to help on the forums by telling it how it is. I'm done with this thread!!!

Even the post by rev10 states ‘oxygen ions’ not oxygen molecules which are two completely different things. The site I mentioned does talk about combustion in general…normal combustion requires the odd free radical to get it going…formed from O2 splitting. But as I was saying the extra power is from the huge amount of free radicals initiating the burn…produced by the decomposition of N2O directly into N2 + O*…it defeats the laws of physics to break down to O* generate O2 then break back to O*…that would rob energy from the reaction, which it obviously doesn’t as the car does get more power.

That's what I've been trying to get across, that there is a more complex way that these reactions undergo. That's why some guy at NOS isn't going to sit down and explain the ins and outs of a radical reaction...chances are he doesn't know, he just knows it gives more power..and basically wants you to buy it. I was trying to give an insight into it but just got a load of smart remarks. Just try and accept that sometmes what you have been told isn't the full story. Dan

Are you talking about the bit that sits across the inside of the plenum? it's open at low revs, then closes at high revs...speeds up the flow of air at high RPM. If you disconnect it you'll notice the car runs like a dog from about 3200-5000ish,then picks up in the last bit of the range.

Anyway I agree with Nath, as far as you guys are interested, NOS + Fuel in engine = vrooom....so I should probably leave you with that. It's not how it works that's important to you lot...it's that you know it's doing something. BTW "Probably the most familiar free-radical reaction for most people is combustion. In order for combustion to occur the relatively strong O=O double bond must be broken to form oxygen free radicals. The flammability of a given material is strongly dependent on the concentration of free radicals that must be obtained before initiation and propagation reactions dominate leading to combustion of the material. Once the combustible material has been consumed, termination reactions again dominate and the flame dies out." taken from http://en.wikipedia.org/wiki/Free_radical As N2O breaks down into purely free radical O* as I said before.... the flammability of the fuel is increased = more energy output. If you can't believe published work...then there is no helping you Dan

What about fogger kits though?

Knore: The 350Z is still the light at the end of the tunnel I just get impulsive sometimes...so was looking at a Supra for something different. The Z will probably be the next turbo challenge though.....even though you can't turbo a car that's N/A So I've been told Dan

So I'm assuming all you guys have adjusted your fuel MAPS to cope with the nitrous...if not and you expect the ECU to figure it out then you're more misled than I thought. 2rismo, yeah you are at a massive loss!

I was talking after combustion? Seriously have you guys ever heard of O*, maybe that's the problem here, you've never heard of radical reactions...so are going with the O2 story? If you've got the same amount of fuel being burnt...how do you explain the massive increase in energy you get from using the nitrous...you'd get a bit more from the leaner burn...but the bulk comes from it being a radical reaction instead of a conventional 'burn' "BTW The heat capacity of Nitrogen would have next to no effect on removing heat." Liquid nitrogen would....but why would a 'nitrous' manufacturer comment on nitrogen....oh wait that wouldn't be a conflict of interest at all would it "Buy my product" I'm soo over this whole thread...... You better go and check that the world is still flat boys!

"So you're saying that by injecting Nitrous-oxide, I would get Nitrogen, Water, Carbon Monoxide and Heat????? How would that chemical result aid in allowing my engine to produce 100kw @ wheels more power?" Expanded hot gasses my friend they push pistons normally don't they? The volume occupied by superheated gas, which = Heat + Water, Nitrogen, Carbon Monoxide is greater so more pushing power = your extra 100Kw. That's what fuel normally decomposes into...so why would you think any different just because nitrous is in there too? Also it has a lot to do with the speed of the expanding flame front, which with a nitrous oxide reaction is steadier...where if it was decomposed to O2 the reaction would be quicker and uncontrolled (detonation) BTW The heat capacity of Nitrogen would have next to no effect on removing heat. Dan

I may not know everything about chemistry....but there is a term called 'specialising' I know free-radical reactions, that's what it does...you can't change the laws of physics....BTW I don't remember mentioning heat of vapourisation when a compressed liquid boils? Yes it does get cold...liquid nitrogen anyone? I really give up...that's just the way nitrous works...you just been mis-informed. Dan

Merli: That was a typo about the nitrogen dioxide…lovely brown stinky gas Seriously though, I’m a chemist mate…I do know the reaction that N2O undergoes in a combustion process….and it has nothing to do with decomposition to O2. N2O is extremely stable, if not inert at room temperature…above 300C it decomposes to N2 (molecular Nitrogen) and O* (atomic oxygen) which has nothing to do with O2 in any way shape or form. O* causes a free-radical oxidation of the fuel with is many, many times more energetic than the common or garden ‘internal combustion’ process. In actual fact you don’t want any O2 in the cylinder as it reacts with O* to form O3 (ozone) which would reduce efficiency. It is this free-radical reaction which gives you more power….if it broke down to O2 you’d be no better off than using air. N2O does replace the O2, try flowing butane instead of N2O…”stallage” as no air is supporting combustion. The only other ‘economical’ way of producing O* gas is by reacting Iodine with Hypochlorite….can’t see people running this in the boot. QED

Sorry guys I’m with Nath on this one, from a Chemistry point of view, O2 is replaced by NO2 in the combustion reaction….due to different reaction rates and energies of combustion on an atomic level. It has nothing to do with extra O2 being put in the engine, the power is from better combustion. It’s rocket science

After all the trouble I've gone through to get a turbo on my car...I've now been tempted by a Supra. Dr Phil what should I do?

She looks good, welcome to the club