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nah mate, wet nitrous simply injects the right amount of fuel needed for the nitrous being injected independently of the cars means of feeding it fuel. IE, a dry system only injects nitrous and relys on the car to be tuned for the nitrous, meaning adding fuel through the injectors with tuning of the ecu or tuning a carby etc. if that makes sense.

  • 3 months later...

this is very well executed!very similar to what i did to my 1993 300zx.except that we went for twin turbos.some pics and a short video of my car

www.freewebs.com/axepower/

that v8 looks right at home in the skyline,you probably went through the same ups and downs as i did.great job.

slim dub

450zxtt vh45dett powered z32

  • 5 weeks later...

it seems i may not be finished with this car yet... im most likely taking it off the market, upgrading brakes and suspension, doing away with the bodykit and looking into a manual conversion.

yeah dude i thought long and hard, talked to scotty, im too young for GTR, furthermoore i cant justify spending that sort of cash right now when i really should be saving for a house, but with the money left over, ill give blacky a make over, the TLC it long deserved, and make it cooler then it was before.

Ok just got all my GTST hubs and brakes, taking the mags i recently purchased for my gtr and sticking them all on this weekend. Now sourcing a set of coilovers and ill get a set of custom springs made up for the front end to deal with the extra weight. Next will be some cusco suspension bits, then getting rid of the kit and a respray, and then adapting a manual to suit the engine.

johnny are you doing a stud conversion? i've been thinking about a brake upgrade too - and

have been suggested gtst items like paul's done to his 31 (but apparently its a bitch to fit and needs some extensive modification to make them fit) show me when your done - or when

your doing it...

its a pretty cool car, i just love the sound, that i will never get over.

Eug, i have 4 pots in my garage that im pretty sure bolt straight on, jay gave them too me, all u will need it the rotors redrilled, or get a custom set.. call me.

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    • Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
    • Nah, that is hella wrong. If I do a simple linear between 150°C (0.407v) and 50°C (2.98v) I get the formula Temperature = -38.8651*voltage + 165.8181 It is perfectly correct at 50 and 150, but it is as much as 20° out in the region of 110°C, because the actual data is significantly non-linear there. It is no more than 4° out down at the lowest temperatures, but is is seriously shit almost everywhere. I cannot believe that the instruction is to do a 2 point linear fit. I would say the method I used previously would have to be better.
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