This is what I had installed... Weldina exhaust, NISMO ECM, NISMO sports cats, NISMO flywheel, racing plugs, NISMO air filter...

 

I almost lost it…when I went out on a test drive after having the resetting kit installed with the NISMO staff member -- the NISMO rep drove…...

He punched it in 1st and then in 2nd ….I thought a supercharger had been installed.

It is simply unbelievable.. the punch on the accelerator.. and then the push back in the seat.

The change of the Z is very difficult to put it words. Before the sports resetting…it was fast. However, after the sports resetting… it became a whole new beast and the true meaning of sports car emerged.

It is hard to describe.. but I will try –

1/ The Z used to feel like you were trying to push it when accelerating fast. The change is that it feels like it wants to pushed to the limit… easily… and the limit comes sooo fast – like a rush until you find yourself suddenly getting close to red line…so fast and so easily.

2/ I used to hate 1st and 2nd gears. Now I love them. The push and rush and speed is so fast.. compared to stock… the change is simply great. Punch….whaaaaaaaam…. immediate acceleration until hitting the next shift…whaaaaaam.. upshift fast…whaaaaam upshift again.. It really felt like a rocket ship when upshifting… smooth and so fast.

3/ The upshifting and downshifting has become a work of art due to the ECM and NISMO flywheel. Much easier than stock.. the upshifting is easily moved at the revs move up… and the downshifting has a lot less engine braking… and works well.

4/ The ECM in combination with the exhaust, sports cats, racing plugs work in perfect harmony to produce the overall change. This sports resetting is expensive.. $4,700 … but entirely worth it and hope that its equivalent is made available in the US. I would purchase this again in a heartbeat.

5/ The appearance of the NISMO Weldina exhaust is a state of art. The sound produced by the exhaust and sports cats…..sheer beauty… WIOW !!.
This is simply the best thing it terms of speed that has happened in a long time. I am nearing the limit of total satisfaction with my Z.

6/ NISMO is not producing the overall results of the Resetting Package… since there have been complaints before about the results. I asked the NISMO rep what he thought it produced given his experience. Stock is “280 HP” … he thought it was upwards to 340-350. This is not important to me (well..maybe yes) but I will check with some other guys if there has been any dyno test on this package.

7/ I am off on a 2 day trip with my Z… and will really put it through its paces.. Pictures later.

 

dam!! i want that ECM!!!...or at least the US version (c'mon nismo.....pleeeeeease)

nice review

did your rev limit change?

btw, are you planning on dynoing the car since the nismo rep was hush-hush?

 

Man, that sounds real cool, especially for an N/A upgrade. While it almost costs as much as a SC, you are getting good N/A power. Interesting that this resetting package doesn't even come with the Nismo headers or cams. Bet that would be a real kick in the pants with them, although expensive.

Also, it is interesting that they have the Weldina exhaust, what is the difference from that and the Nismo exhaust offered here??

 

Bill. glad it met or exceeded your expectations. Sounds like a great package for those who are still leary about forced induction. Hope the USA gets the ECM. Looking forward to more feedback after your 2 day trip. That should give you a real feel for the package.

 

Thanks for the write-up "fairlady Z in Japan" Sounds GREAT, but what a tease.
I just ordered the Flywheel and already have the exhust. Come on Nismo NA, we NEED the ECU!
Hopefully on of the Importer's on this site will start getting the ECU shortly.

 

must be as many have upgraded exhaust, flywheel, air intake with marginal results. Can we buy the ECU from Japan. Please post a web adress. I promise I will re-install the stock one when I go to MVB inspection.

 

Yeah, I would like to see what the results are from the ECU also, cause the results from the rest of the package has been done, redone, and in alot cases, disappointing.

 

I wonder if Nismo will hold up the US ecu for some later version of the Z (2005?)....as in some marketing deal.

 

Since I already have the Procharger, would the NISMO ECU be of any benefit to me or would I need something different altogether?

 

Doc

I don't think it would be proper since the NISMO ECM was designed around a NA Z. The S/C would need a totally different fuel map, etc...

Victor

 

You can order a J-spec ECU from many places, but it won't work with U.S. spec engines, that's why no one has done it.

 

by then we would have an aftermarket ECU far better.

 

Thanks for the review Bill. It is excellent as always. Did you get the chance to look at the spark plugs? Can you tell if they were made by Denso or NGK?

Thanks,
Victor

 

Does the ECM also house the "drive by wire" logic for the throttle or is that controlled by some other component? If it's controlled by the ECM, they might have made some improvements there as well that make the car feel more responsive to a smaller movement of the accelerator. I think BMW did something similar with the sport button on the E46 M3 (or so I remember from a road test I saw on the speed channel).

 

Bill,

Thanks for the feedback and sharing with us. You gotta let me drive your Z, as I might be heading to Japan this Jan or Feburary. Probably for the Tokyo Auto Options Salon

I Did get a chance to ask some Japan NISMO reps about the ECU and spark plugs for the SportZ article. What I can tell you is even if you do happen to score a ECU in Japan its pretty much worthless here becuase you have to remeber that we don't get 100 OCTANE! Well we can but its not at ever pump. Correct me if I'm wrong Bill or anyone else but thats what the Japanese NISMO reps told me.

 

so if we cant get the nismo ecm here what about the Nismo Sport Cats pictured? Those ought to be worth some power and freer flowing that our stock ones..any one know?

Jeff @ perfformance are these available through your dealership?

 

The Nismo cats are crazy expensive over here, the Crawford or Random cats are a much better option.

 

Thank you for all your comments. It is almost 7am on Sunday morning and just about to head out the door on my 2 day trip. Tuesday is a national holiday in Japan and I am taking Monday off.

As Victor and StrictlyZ pointed out... the ECM is specifically made for the JDM models and per input from previous Nissan/NISMO reps, it will not work in the US due to the difference in octane level.

TCL... I am not certain in the ECM contains the "drive-by-wire" logic... but it seems to make sense. Also, according to the NISMO rep, the ECM does a lot of engine re-mapping... and the additional parts to include the exhaust, cats, plugs, and filter just help it out.

Here is a brochure I received a number of months ago from NISMO... and contains some info regarding the "long type" racing plugs. I don't know the maker, but I will try to find out. Toward the bottom, the specs for the racing plugs (left side) are compared to the regular plugs. Replacement plugs are recommended every 12-13,000 miles per NISMO.

 

I want to see a dyno!! Hehe.

340-350hp? !! I wouldn't mind that!! Get some headers, cams, crawford intake plenum ontop of that and who needs FI!