Nistune Vs Vipec

[STATUS]

What would you say the power limit would be for a Nistune on an Rb25 before you would be to a full replacement ecu like Vipec or others

Power isnt a problem but resolution becomes an issue if you after big HP etc... temp compensations (like AIT on GTR's) are also an issue but we are working on that now with pete from nistune. Mind you im talking 380awkw plus. The quality of the tune with nistune comes down to the available registers or addresses which are adjustable, these are getting updated regularly so it pays to keep an eye on them.

For streeters i just cant get enough of the nistune gear hence why we do quite a few each week, for serious track cars i would loo at something like vipec, link or haltech.

That said if any guru's know how to find the relevant registers hidden in the nissan ecu that are not currently accessible let me know.

[Swiper the Fox]

The Nistune "chip" from what I understand just facilitates live programming of the existing hardware inside the ECU's it works with (r32 gtr, z32 etc). These ECU's could always be flashed with new maps, just not on the fly - so you would need to adjust the map, flash the ECU, run on the dyno, flash the map and so on - not very nice.

All the hardware you use to achieve a certain power level - AFM's, injectors, fuel pumps etc all run on pretty standard voltages, so as long as they are within the ranges that the ECU can read or output, there is nothing to say that you can't achieve 2gagillion kilowatts

Where the ViPec and other full replacements come in with is additional features and flexibility. Quite often though this comes with incompatibilities / quirks with standard components - CAS for example as discussed above. ViPec from what I have seen are trying hard to make it as plug and play as possible so kudos to them - no doubt the issue discussed above will be corrected with a software update at some point soon.

I personally really don't like having to chop / splice and add / remove sensors from an engine where a plug and play alternative is available.

really only adding one sensor to the vi-pec if its a GTS-t...and thats air inlet temp. This is something that none of the other two (Nistune and Power FC) have. Air inlet temp correction is important in cars that see track duty...ive known of a car that ran perfectly for quite some time on the street with an ecu with no AIT sensor that melted a piston the first time it saw track duty.

With the GTR no sensors need to be added...just a vacuum/boost line to the ecu.

Both Power FC and Nistune also cannot read trigger like all others at high RPM....its just a case of a disc with 360 slots spinning so fast it blurrs to the point that the ecu see's it as one big open slot. Thats why big horsepower.rpm cars run aftermarket trigger set-up...its to avoid this issue. The Nissan 360deg optical CAS was never designed with big RPM in mind and is simply not up to the task. My car's logging showed on one run that the engine was spinning at 22500rpm...it wasn't doing that of course, more like 10000 but the ecu couldn't work out what rpm because of the trigger wheels speed and gave a false reading.

Edited April 16, 2010 by Swiper the Fox

[N I B]

The Nistune "chip" from what I understand just facilitates live programming of the existing hardware inside the ECU's it works with (r32 gtr, z32 etc). These ECU's could always be flashed with new maps, just not on the fly - so you would need to adjust the map, flash the ECU, run on the dyno, flash the map and so on - not very nice.

All the hardware you use to achieve a certain power level - AFM's, injectors, fuel pumps etc all run on pretty standard voltages, so as long as they are within the ranges that the ECU can read or output, there is nothing to say that you can't achieve 2gagillion kilowatts

Where the ViPec and other full replacements come in with is additional features and flexibility. Quite often though this comes with incompatibilities / quirks with standard components - CAS for example as discussed above. ViPec from what I have seen are trying hard to make it as plug and play as possible so kudos to them - no doubt the issue discussed above will be corrected with a software update at some point soon.

I personally really don't like having to chop / splice and add / remove sensors from an engine where a plug and play alternative is available.

Nistune is real time tuning, Old daughter board is what you are thinking about.

[paulR32gtr]

really only adding one sensor to the vi-pec if its a GTS-t...and thats air inlet temp. This is something that none of the other two (Nistune and Power FC) have. Air inlet temp correction is important in cars that see track duty...ive known of a car that ran perfectly for quite some time on the street with an ecu with no AIT sensor that melted a piston the first time it saw track duty.

Right - yeah I have always wondered how relevant AIT was with tuning. I installed a Microtech LT8 on one of my old ET pulsars, added an AIT sensor but never needed to add any correction as inlet temps never got too out of control despite the relatively huge amount of boost I was running.

Both Power FC and Nistune also cannot read trigger like all others at high RPM....its just a case of a disc with 360 slots spinning so fast it blurrs to the point that the ecu see's it as one big open slot. Thats why big horsepower.rpm cars run aftermarket trigger set-up...its to avoid this issue. The Nissan 360deg optical CAS was never designed with big RPM in mind and is simply not up to the task. My car's logging showed on one run that the engine was spinning at 22500rpm...it wasn't doing that of course, more like 10000 but the ecu couldn't work out what rpm because of the trigger wheels speed and gave a false reading.

Right so does the standard GTR CAS just contain an 360 optical trigger disc & photo diode?

What is different about the chopper disc - 6 slot? (edit; just looked it up yeah cool - simlar to what the pulsar had a slot for each cylinder inside the dizzy)

[paulR32gtr]

Nistune is real time tuning, Old daughter board is what you are thinking about.

Sorry I thought that is what I said?

"facilitates live programming of the existing hardware" and "These ECU's could always be flashed with new maps, just not on the fly"

Is it something different altogether - i.e. complete replacement for some of the existing ECU hardware?

[N I B]

All the Info you need is on the Nistune website.

[GTScotT]

Can someone confirm is the plugin vipec for R33 GTST has VCT control?

I cannot find this info anywhere

[Adriano]

Yes it does