Thread: Help needed please! Tuning sr16ve n1

Hi guys really really need your expert help!!

Theres a few genuine n15 pulsar vzr n1 builds going on over here.

Alot of people here are running the daughter board and generic mapped chips which do make a great difference to the cars on our fuel.

The problem is no one over here knows how to tune these boards properly.
No tuner over here has yet figured out how too tune the ignition map yet.

Im am not speaking on anyone elses behalf but there is one unbelievable n1v2 over here of which only 36 were ever built over here and the owner is contemplating breaking it after spending the equivalent of almost US$30,000 building it because no one will tune it.

It would be a shame to see such a epic car parted out over this plus there is many more of us that want to tune our cars properly.

Please help people.

Motec is costing at least US$4000 so is too expensive.

Does anyone have any ideas how to tune these or maybe suggest a different way of tuning these cars. I was thinking scrap the 4 extra injectors and run a simpler system but dont know what will fit the pulsars.

Sure you could scrap the engine harness and the extra injectors and run an Almera GTi ECU and a Greddy MSS to switch the cams and then use a Nistune or other similar type tuning setup.

If you want to get someone local into tuning them, get them to get into contact with Bill at Powerland in Greece maybe... He's really done a lot of them and is extremely knowledgeable and helpful. I'm sure with the right exchange, he'd get you started on it.

Another guy on here Evlnxr ? who is in New Zealand also has experience with tuning them. The main outlay is a pair of Ostrich 2.0 emulators which replace the chips temporarily and whatever software you want to use.

The theory behind tuning them hasn't changed, its just the hardware required that the tuners might not use (because its 'old tech') would be a large outlay for a small return.

I spoke with nistune about support for the VE ECU's, market is too small for them to get back the development cost of reverse engineering the ECU. Dave that does TunerCode is going to look into it eventually, but he's already got his hands full with other projects from what i understand.

I do know that there is a totally different daughter board from Japan for the N1 ecu, and that the address file for the rom is similar, but there are some subtle differences.

There is one here that has been tuned on the N1 ecu with a daughter board, but i didnt do it myself and i dont have a bin file, might have the address file somewhere tho, i could certainly get it.

So you have the Japanese daughterboards, who is fitting and supplying the chips with the file on it?

If there was any way you could get one of the chips read and sent to me i could have a look, talk to my mate, and see if we can come up with any sugestions. Clearly i cant tune your cars from NZ, but might be able to help out in some way.

The Techtom boards are stupidly expensive and while they retain the use of the knock sensor, i don't know that the cost is worth it, and i don't think they're even still available. OutOfSight might be able to confirm that as he's the only person i know who has had direct and involved contact with one of those boards.

You can use the regular JDM boards on the N1's anyway, so a tuning solution does exist. I have N1 roms (factory) if you want to look at them, pm me your email. The maps/tables are in the same place from what i recall last time i looked at one.

Thank you for your responses everyone.

I’m not certain on this but as far as I know the first few daughter board ecu’s that people over here got came from Bill and it is his maps that are being used on our ecu’s. A lot of people with Vzrs and N1’s over here run the daughterboard’s now.

The map work great for anyone wanting to stick to 1.6 engines and seriously improve the power of the cars but the problem is that so far the Irish tuners are unable to map these properly on the nistune software.

This is preventing people from being able to run a stroked or highly tuned engine.

It is just the Ignition map that they cannot map on the VE ecu from my understanding.

All your help is and would be greatly appreciated.

Evlnxr is it true that in New Zealand that you have no problem mapping the daughter board Ve ecus?

Worst case scenario could a good map be achieved on a sr20de almera ecu with a switcher for the vvl. And would this ecu fit?

Worst case cenario is what i'm running right now... (not on an N1 though, on a 20V)

I use a Greddy MSS for cam switch and an N14 SR20DE ECU (AKA AUDM Pulsar SSS) with a Type3 Nistune. Works great. For the N1 though, you would have to use a regular VZ-R engine harness (or a normal SR20DE harness) as the N1 ECCS plug (that goes into the ECU) is different. This would also cause some issues with some supporting wires not being there (such as to control the intake butterfly on the airbox and associated valves) but a lot of people replace the factory airbox with a pod filter anyway.

The flap is long gone on most of these anyway.

Do you think the second set of injectors could be wired onto the same line as first and tell the ecu you are running 660cc injectors or would that be even possible?

The issue i beleive would then become the load on the ECU would be too high. They're not designed to drive 2 injectors per driver. While the drivers MAY be able to handle this, i don't think it would be really a good idea as the injectors would have to be wired in parallel which would halve the resistance (impedance) and would certainly mess with how the ECU works. Upgrading to a single set of larger injectors (even 550cc would be more than enough for any N/A bulid) would still retain the important low pulse atomisation required for a smooth idle and allow a decent amount of flow for a big capacity build.

Then you could use the other injector ports for direct port wet shot

We have had no problems with tuning Ve's here, bar a couple of cars that have had a weird cold start cranking problem, but it minor.

If you can find someone that can read your chips and send me the bin file, and if i can get a stock N1 bin file, i can see whats been changed.

I see no reason why the ignition maps cant be tuned, unless its the boards you are running that are accessing a different timing map that we are not seeing.

I'd stay with the N1 ecu if you can, otherwise just run 1 bank of 370 or 480cc injectors and block the others off, then run a non N1 ecu, DE with Mss or similar.

send any files to evlnxr at gmail

Why arent you guys just getting more affordable standalone EMS like AEM, or running USDM ECU's with things like Nistune or Calum, or better yet, the new realtime boards that should be available some time this year?