Nismo tune coming soon
 

So my friend is in the airforce and he's on base in japan, he has a 350z so hes real intreseted in our cars. In Japan nissans already released a HIPRO performance tune from nismo which is said to be by far the most advance ECU tune

Sounds good

yea man its legit, the most tourque ever displaced by an ECU

No offense, but I'm going to call it garbage early and on the record. Pointless Garbage that will make no power, but plenty of extra cash for Nissan.

"Legit...Most torque displaced by an ECU" - Priceless.

just goin by what it says, i didnt make it man lol, im not gunna buy till i see user reviews

Makes sense to me. We've seen limited gains with a dyno tune on the 370Z but I've seen first hand the performance of a 350Z Nismo S tune. I was barely pulling on the car with my modded 370Z. It would be interesting to see some dyno results before we make any leaps. Could turn out to be complete BS but if the 350Z stock Nismo was keeping up to my 370Z I'm interested....

Fric...no offense but full bolt on and tuned 350z are making like 270 at most... with those mods you should be able to romp on a stock nismo s tune.

Fric, did you go with Uprev for your dyno tune? If so, I (or RCZ) might be able to shed some light on the situation for you.

^ Semtex, its the same deal with the Cobb...so if you have gotten tuned at all, then all you've done is tuned fuel trims.

All I got out of my tune is better fuel economy! oh and a valet map which is fun to show-off. :)

What's a valet map?

Valet map limits the rev to a certain amount, usually 3,000RPM so if you have to valet your car they cannot go for a joy ride.

I used to have that in my old IROC-Z, but it was built in to the UNGO alarm system. The car wouldn't go over 25mph.

I assume this is a feature of a replacement ECU.

It is in the ROM that Uprev will put onto your car with a tune from them.
Uprev usually provides a few maps you can rotate through, performance, stock, valet mode, and <1,000RPM. It does not require a full ECU replacement.

The Valet map sounds cool, but no performance gains when it comes to horsepower and torque? How much does Uprev charge for this?

The Valet map is included with the performance tune.

I understand that, but one of the members in this thread said the tune did nothing for performance. Only improved fuel economy. That’s good, but I’m not sure if it’s worth it.

How much does this tune cost and how do you control the maps? Meaning, if I valet my Z, how do I turn on the valet mode? I’m new to ECU programming.

Gains depend on a lot of things, a tune is designed to make the engine run at optimal efficiency. Usually with bolt ons your car will start running lean or rich and you need to balance it back out.
Tune prices vary, and you control it through the cruise control button(s). Hold one button down, then select up/down and you see something flash X numbers of time which will tell you what tune you are running.

Got cha. Thanks for the info.

I don't plan on doing a lot of mods to my Z. I purchased a very slightly used NISMO stock exhaust for a great price, and I also plan to upgrade the intake system. Most likely with a Stillen. I would really like to get the NISMO ECU program as well, but I've heard that isn't possible. Something about the HEX key being different. Not that I have a clue what that means.

ECUs are tagged, so for an example: AX18430104384 (I just made up some random numbers/letters)
A Nismo might be BX12480750931, so the stock AX is easy to crack and pass between coupes but the BX might be specially written for the Nismo ECU and cannot be put on an AX ECU setup.

Thanks. I see what your saying.

After I install the exhaust and intake, should I reset my stock ECU? Would that allow it to adjust to the modifications?

It makes it faster, exhaust usually does not need the reset but the intake definitely does (but I will do it for both myself).

Like the NISMO exhaust I purchased: If I found a NISMO owner who replaced his stock ECU, could I purchase his stock ECU and install it in my Z, or would that not be a good idea?

That is out of my knowledge base, you can change ECUs (a few JDM companies have created full replacement ECUs), but I am not sure about everything on it.

Ok, thanks for your help. I really appreciate it.

They have better pump gas in Japan. Better gas can let you get more aggressive with timing.

97 octane in japan is the same as 93 octane here. They use a different system.

Good catch Vipor. A lot of folks don't know what is going on in other countries like that. Our octane rating system used at the pumps are actually an average of 2 different ratings. Below for your reading pleasure.

Octane rating - Wikipedia, the free encyclopedia

It's still better than the 91 we get in CA...