Would love to do this if i had more time and money.

 

I'm just alittle, well alot jealous. Great work as always.

 

Is this running on the car that you made those dummy balance shafts for?

 

Wow Nira is popping up more and more everyday lol. Looking awsome there Nick.

 

That is freakin cool!

 

Awesome totally kick ass!

 

I have had the unit here for quite a while we just got way behind on our projects.

Yes this is the "yellow" motor car with the top mount Gt3071r 2.3i intake manifold...

 

I have had the unit here for quite a while we just got way behind on our projects.

Yes this is the "yellow" motor car with the top mount Gt3071r 2.3i intake manifold...

Dear god that will be ridiculous!

 

Looking good,

did you remember to put a diode to the fuel relay cable?
also you may need to add a resistor to crank shaft pos sensor signal cable if you start to get errors on higher rpm's.

Nira in full action
http://www.stcf.net/viggen/sp07.WMV

 

So what's the advantage of mounting the GT 3071r up top vs down where the turbo normalls sits?

Seen it both ways, always wondered why

 

intake to compressor can be built without compromises and the header is more simpler, which made the desision for me few years back. Both will work
if you spend a little time planning prior to making

 

Yes I did put the diode in.. We did excited and forgot to put gas in the car.. It kept dying and we realized the gas was out.


I am working on the timing map right now. I think we are way off too high.

 

I am working on the timing map right now. I think we are way off too high.

Just copy a stage map into it for starters and test it in your dyno with headphones to make sure it does not knock. In areas where MAP <100kpa you can basically put what ever between 10 and 40 and it will make the same power. And since this is the case you can scale your EGT to wanted level by shifting timing up or down.

 

interesting

 

nick how is this coming???

 

awesome. NIRA looks sweet. reminds me of one of the megasquirt tuning apps, has this nifty dashboard feature:

good luck with the tuning, interesting to hear about the diode required for the fuel pump relay, we had to do the same thing with MS, before we learned that KeithG and i both blew out our injector drivers

Paul

 

Drove it all weekend.. Little hot with no AC. need to sort that today. No internet at home.. Time for work now though..

 

The A/C compressor is controlled by the ECU (Pin 54), and since it is no longer there the compressor will not run. There are two ways to get it running,
1) paralell install the T5 ECU
2)build additonal control

Will investigate the first option later this year since it would be the best way to control the compressor.
The later choice can be as simple as manual a grounding switch, which grounds the cable which is connected to pin 54. However you cant run the A/C compressor all the time since it will freeze the core, so you need to flick it on and off (currently i do this). Also if you drive slowly the aircon can become over pressurized (leads to failure), so you will need to run the fan if the pressure becmos too high, thus the engine temp is not over the limit. 9bar is the limit if I remember correctly.

Be aware that the compressor add alot of strain and if the IAC loop is not working good it will stall the engine.

 

Going to take a small transistor circuit since the ACC sends +v to the T5 and then T5 grounds the relay.. Or switch the relay around.

 

Havent looked into t5 that much but in t7 the signal from dice to ecu goes via the bus, making it more than difficult to poke into.

 

I don't even know what this all means!

 

Damn you, Vigge and Nick.....







I promised myself, I promised my family: "No more mods."


Now I might have to come up with a reason for NIRA.

 

Yea, where does it end eh Mike:mrgreen: I keep dumping more and more money into my cars. I have 4 saabs now and they all have ecus and intercoolers and what not... Its getting really expensive!

I was thinking full stand-alone or gt3582??? HMMMM, wait, I could probably just get the .86 gt28rs turbine housing machined out to accept the turbine wheel I have and then get the 4" inlet compressor housing and top tubular manifold... See what I mean!!!

Have you made any decisions on doing the turbine upgrade? The turbo shops I have talked to want my entire turbo to do it, but only 75.00 bucks and a months time... I don't want to part with my beast right now...

How bout you?

John

 

dyno results?

 

Nick,

I know NIRA gives us the ability to fine tune on our own, and run multiple maps etc. But for someone who isn't changing out hardware, or doesn't have a need/desire to change maps, is NIRA capable of getting more power than a T5 or T7 tune on identical hardware?


All this talk of NIRA being so great, I'm wondering, on a given hardware configuration, can NIRA squeeze more power/performance out of the engine than you can with a custom T5 tune? If you can reach the same safe power levels with both T5 and NIRA on the same hardware, then it looks like NIRA really is only a good solution for those who are actively changing/tweaking their cars, or who want a "Daily driver" map and a "Racing" map. Whereas there are some folks on here (like myself) who upgrade annually or semi-annually so the cheaper, custom T5 tune may be the better route.

 

It is like big brakes.. If you need them you know. Basically it is not a tune it is a tool. for a given hardware with same good calibration you are not going to gain anything. For street cars (those getting state inspections) you need to keep t5.

 

So NIRA is really for "race only" saabs?

 

Not so sure the orders will be rolling in and I for one don't think you really need a full stand-alone unless you are racing, have big power with a big turbo or just like to tune your own cars.

In most cases I would think the people that would spend the two grand for a full stand-alone engine management system would have enough knowlege to tune it themselves.

Usually by the time you get to where you would need a system like this, you have learned a good bit about tuning and what it takes to get big power out of a car.

John

 

Not so sure the orders will be rolling in and I for one don't think you really need a full stand-alone unless you are racing, have big power with a big turbo or just like to tune your own cars.

In most cases I would think the people that would spend the two grand for a full stand-alone engine management system would have enough knowlege to tune it themselves.

Usually by the time you get to where you would need a system like this, you have learned a good bit about tuning and what it takes to get big power out of a car.

John

Very well stated.....no point in this unless you're running well over 380 hp out of a Saab 4 cyl.

 

I just can't believe the way you guys are talking about standalone software like this. Any car can benefit from a system like NIRA or MS, no matter what the hardware. As observed by Kaylan when she started modding her car, every thing she put on it made her 1/4 mile time slower. No one can afford to pay thousands of dollars for new tunes every time they replace or upgrade something on their car.

If I were to put NIRA on my '76 99 my gas mileage would probably jump 10 mpg and I would get atleast another 30 horsepower.

As far as comparing it to t5 or t7, it has way more flexibility and lets you tinker with stuff if you think something is wrong. With trionic your at the mercy of a tuner to tell you why your car isn't running like you think it should. With NIRA you can examine your AFR and EGT data and change your maps on the fly and see how it affects your car.

this is a very powerfull tool and should not be generalized as a 'race only' product. that is their primary appliaction, because that is usually the only way to justify the initial cost, but in reality it is the way every car should be.

 

I think its the money vs what it can do and for a simple stage 3, 4 or 5 I would still go with a 500.00 tune. When you get one tune from a tuner and then upgrade your turbo, some of them will update your sw for less than half the price or better in some cases. You could do 4 different turbos before you would equal the price on nira.

It would be nice to have I agree, but I would not spend the money unless I was racing or had 400bhp or more. That is just my opinion.

I went faster and faster too with just some changes in my sw from my tuner, once the hw is peaked out, its peaked out, no other sw can get any more out of what the hw is designed for. Then you have all the emissions testing to consider too.

I did not know Kaylan was racing 1/4 mile, I would love to see some slips or hear about some of the times, 60', 1/8th and 1/4 et and mph. I am having a ton of fun racing my car now.

John

 

well i'm not trying to sell you nira, i actually don't know why anyone would use it instead of MS. They say 'well what about that DI' but thats just a cop-out.

It is a great system, and being able to tune it yourself instead of having a tuner is the coolest thing in the world in my opinion.

With kaylans big turbo she did 300 hp on the stock aero software, so it tells you how important hardware can be.

I don't know all of her times, you should talk to her. It was all last summer, she went every weekend.

I'm ordering MegaSquirt next week, and it's not for a race car. It's for the 99. I want to see what a Saab B-motor can do

 

well i'm not trying to sell you nira, i actually don't know why anyone would use it instead of MS. They say 'well what about that DI' but thats just a cop-out.

It is a great system, and being able to tune it yourself instead of having a tuner is the coolest thing in the world in my opinion.

With kaylans big turbo she did 300 hp on the stock aero software, so it tells you how important hardware can be.

I don't know all of her times, you should talk to her. It was all last summer, she went every weekend.

I'm ordering MegaSquirt next week, and it's not for a race car. It's for the 99. I want to see what a Saab B-motor can do

300 wheel motherfucker. :lol: