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I am just new to skylines...bought a R34 GTS-T recently with no such modification with engine or any performance enhancements

can anybody let me know what difference Nistune will gonna make on the performance of the car & how does the intercooler kit helps in that as well.

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If you still have the standard airbox get a high flow panel filter for it. Then get the Nistune fitted and tuned by the best tuner you can find (ask around and do some research). You will get a noticeable improvement just from that. Then if you want more power do lots of research (reading, join the club and have a look at other Skylines) and plan logical stages - in most cases you will need a new tune afterwards so don't do things one at a time but save up for stage 1, stage 2 etc.

Sorry if this has been covered before, but are you able to have multiple tunes (eg: economical tune & performance tune) with NIStune and be able to swap tunes with a computer?

EDIT: nvm, I found my answers, cheers :P

Sorry if this has been covered before, but are you able to have multiple tunes (eg: economical tune & performance tune) with NIStune and be able to swap tunes with a computer?

EDIT: nvm, I found my answers, cheers :P

I think you can do this with most aftermarket/programmable ecu. You just need the hardware and software to do it.

Sorry if this has been covered before, but are you able to have multiple tunes (eg: economical tune & performance tune) with NIStune and be able to swap tunes with a computer?

EDIT: nvm, I found my answers, cheers :P

no it cant, but there is no difference between economical tune & performance tuned maps anyway, They are far removed from each other in the fuel and ignition maps so dont interfere with each other.

It would be nice to have enough memory to have dual maps for different fuels though.

no it cant, but there is no difference between economical tune & performance tuned maps anyway, They are far removed from each other in the fuel and ignition maps so dont interfere with each other.

It would be nice to have enough memory to have dual maps for different fuels though.

What if you jerry rigged the knock sensor loom... run the knock map for the second type of fuel.

Obviously you would have to tune a little 'softer' than usual, but it gives you 2 seperate maps???

Ideas? just like bs-- I'm full of them. ha ha

Cheers

J.

What if you jerry rigged the knock sensor loom... run the knock map for the second type of fuel.

Obviously you would have to tune a little 'softer' than usual, but it gives you 2 seperate maps???

Ideas? just like bs-- I'm full of them. ha ha

Cheers

J.

I actually considered this, you should be able to hook the knock loom up to a switch, one that has a resistor and basically puts a blank signal (eg no knock) and then switch the knock sensor to another circuit. I'm assuming it uses some filtering on board to figure out what knock is, but I am sure you could use some trial and error to generate a fake knock signal. Maybe just put lots of noise on it, eg an opamp hooked up to a mic that just clips the signal or something like that.

You could certainly do it, but it just comes down to how hard it is to generate a dummy knock signal and how advanced the circuit has to be, if you have to ass around with op amps etc then it is probably a waste of time. Just put that time and money towards a proper after market ECU.

I was thinking about this so you could run an E85 map and a 98 map, but it is probably less effort to buy a $50 laptop and a consult cable and just change the tunes yourself.

Btw STATUS, for around the $1-1500 mark, what would you recommend for an aftermarket ECU for the street, eg something with some inputs and outputs so you can control VCT, you can have plenty of trim tables such as coolant temp, intake temp vs ignition/fuel etc. This would be for your typical run of the mill 2-300kw skyline.

Edited by Rolls

Btw STATUS, for around the $1-1500 mark, what would you recommend for an aftermarket ECU for the street, eg something with some inputs and outputs so you can control VCT, you can have plenty of trim tables such as coolant temp, intake temp vs ignition/fuel etc. This would be for your typical run of the mill 2-300kw skyline.

I know it doesn't have aux inputs and outputs but a PowerFC is the only one you should consider in that budget. Adaptronic are a waste of space due to their freaky map changing ability where it plugs 50 degrees of timing in half your map randomly and Microtech is not really going to please anyone too much. They do the job but they do it extremely poorly.

Extend your budget to $2000 and Wolf V500 and Autronic come into your price range. Even a Haltech if you were desperate.....although, if you ever have a problem with a Haltech and send it back to them, they just drill a hole in it and say they don't support it anymore and your ECU no longer works :ninja:

I actually considered this, you should be able to hook the knock loom up to a switch, one that has a resistor and basically puts a blank signal (eg no knock) and then switch the knock sensor to another circuit. I'm assuming it uses some filtering on board to figure out what knock is, but I am sure you could use some trial and error to generate a fake knock signal. Maybe just put lots of noise on it, eg an opamp hooked up to a mic that just clips the signal or something like that.

You could certainly do it, but it just comes down to how hard it is to generate a dummy knock signal and how advanced the circuit has to be, if you have to ass around with op amps etc then it is probably a waste of time. Just put that time and money towards a proper after market ECU.

I was thinking about this so you could run an E85 map and a 98 map, but it is probably less effort to buy a $50 laptop and a consult cable and just change the tunes yourself.

Btw STATUS, for around the $1-1500 mark, what would you recommend for an aftermarket ECU for the street, eg something with some inputs and outputs so you can control VCT, you can have plenty of trim tables such as coolant temp, intake temp vs ignition/fuel etc. This would be for your typical run of the mill 2-300kw skyline.

maybe the nistune guys could whip up a little software majic.

there has to be a simple way to fake a knock signal....

2nd hand haltech?

J

If I made the budget $2k+ what would you suggest? This is just a hypothetical question as the nistune does the job for me now but I'm curious in the future. The only other ECU I've used is a motec and they are just so brilliant that I can't see much measuring up heh.

XRATED you could always ask on the nistune board, I'm sure matt or pete know more about what the knock signal looks like, or at least what the threshold is for the ECU, a frequency or just a certain voltage limit.

Edited by Rolls

I'm sure I read about this on the NIStune forum, I'll see if I can find it. Someone did exactly that, wrote a program that could store two separate tunes so that you could fill up with 98 or E85 and change the tune by clicking a button.

It was something along the lines of getting the car tuned, saving that tune and then retuning on the other fuel and saving that tune. Then the program that he wrote would load whichever tune you chose.

Forget the exact details, but I'm sure it was along those lines. Is that not what you are asking for?

I'm sure I read about this on the NIStune forum, I'll see if I can find it. Someone did exactly that, wrote a program that could store two separate tunes so that you could fill up with 98 or E85 and change the tune by clicking a button.

It was something along the lines of getting the car tuned, saving that tune and then retuning on the other fuel and saving that tune. Then the program that he wrote would load whichever tune you chose.

Forget the exact details, but I'm sure it was along those lines. Is that not what you are asking for?

He did it with a carpc, a copy of nistune and a script

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