Like the title says, a buddy gave it to me. I havent heard much of performance increase from them. Is it worth it to try it? It is for the same year(97) automatic. Right now I got a short ram intake, cattman y, megan cat-back. Anyone have this installed and noticed any gains?

 

As far as I know they are not worth buying but since you have one anyways then might as well give it a try, right?

 

I want to give it a try but, looking at the four small gold screws holding the ecu on it looks like its gonna be a PITA to get at those.

 

I'm going on a limb and saying you wont gain anything at all and its a waste of your time and effort trying

 

aint gettin a thing.goodluck with it though.

 

if someone gave it away it cant be that worthwhile......wow

 

if you really want to try it, you can always unbolt your ecu harness, plug it into the new ecu and leave it on the pass. side floor. at least you would be able to judge for yourself if you actually feel any gains over your old one. I ran my JWT like that for about a month b/c I didn't feel like dealing with removing the old one . obviously if you do decide to keep it, you might not want to drive too much with the ecu hanging there.

 

geez, I been looking forever for a used one, and u get 1 for free. Grrr. Well, enjoy!
Dr J

 

When I saw the dyno on their site years ago, that killed it as far as their credibility goes with me anyway.

 

Dyno is 1 thing. Driveability is another. I'm sure you remember Steve Millen's goal of creating the ultimate street car, only to say it was "undriveable" so they had to tone it down and tweak it back.

I was helping a friend get a chip for his Porsche and we settled on one that didn't offer much dyno gains, but it was much more fun (and easier) to drive after getting chipped.

Numbers don't tell the whole story.

Dr J

 

It still has yet to be proven though. I agree, as my LRMAF in my A33B has done world of wonders for the driveability of it.

 

I had a JET ECU back in 2002 (I was told it was a JWT ECU, that's a whole different story). Upon receiving the ECU I of course opened it up immediately to make sure it had a daughter board installed. It did not. It had a little JET sticker slapped on one of the chip inside.

The way our ECUs work, you have to install a daughterboard in the ECU to modify them. You can't just burn a new chip and install it. This means that this JET ECU was nothing more than an expensive sticker - nothing had been done to the ECU. Unless JET has changed they way they do things since then this ECU is likely the same thing - a stock ECU with a $300 sticker.

I PMd the original poster informing him of this and asking him to open up the ECU and take a pic of what's inside it to see if JET has actually started doing legitimate ECU upgrades but he hasn't logged on since then I don't believe.

And yes, the dyno on JET's website is fake as all get out...

 

damnn...you mean there wasn't even a sonboard or his relative cousinboard.?

 

It hasn't been proven cuz this forum gives it a lot of negativity with no good reviews. It's the same with Phantom Grip LSD that gets no respect, yet nobody has one to review.

Nealoc187: How does daughterboard differ from re-flash JWT, in terms of technology? As I understand, both systems receive input, does some calculations, and gives output. Both pretty much are capable of the same thing, right?

Dr J

 

Im gonna open my stock one and the one with the JET chip and see if it does have a daughterboard installed, Ill take pictures of both and post em up. Either way I guess Im gonna install it anyways see if I can feel a difference.

 

4th gen ECUs are not flashable - they must have an entire extra board installed - that's the whole point I'm attempting to make. They solder in a daughterboard of their own design which contains the revised air/fuel and timing tables as that is the only option for us.

 

I hear ya. But I'm asking, what's the diff of the JWT method vs JET? Why's JWT's turnaround time so long?
Dr J

 

ok, so I opened up both ecu's, and the only difference I saw between stock and JET is a sticker that JET has put on a chip. Here are the pictures side by side, they are kinda bad quality but all I have, so...

 

no daughterboard, I have not installed it in the car, I still will put it in to see if there is any difference at all performance wise, might as well give it a shot i guess.

 

JET has no method. They put a sticker on a random chip in your ECU. That's all they do... they don't do any reprogramming or anything. Their product is a lie, a fabrication, a fraud.

JWT is just slow as hell, probably because they don't really care about the maxima community because it's such a small drop in the bucket compared to 240s, 300zx, 350z, etc.

 

http://www.jetchip.com/pdf/dyno/Niss...ma%2065002.pdf

 

Um...why did they even make that? I mean if people are looking at a dyno report....most likely they'll know what a real one looks like.

 

dang! I had NO IDEA the USIM flowed that good up top .

Someone should really report these guys to Better Business Bureau or something along those lines, cus this is such a fraud its not even funny. Whatever though, at the end of the day, its a buyer-beware market, because there's frauds like this out there for the un-educated to fall into.

 

Well I guess we know why they put those stickers on the side that say "warranty void if removed". Glad I didnt pay for this. I will still put it in the car just for the hell of it, see if there really is a difference, might be a while cause its been snowin for two days straight and the city is basically shut down, we got about two feet in the past two days. Truth is Im lovin it cause Im a snowboarder!

 

i remember reading time and time again that the 97 ecu cannot be flashed or even swapped out. no tuner has created an ecu for the 97 that doesnt trip a code. i heard many times that you could use a 96 ecu tuned by JWT, but that it would trip an engine code.

i do remember one thread ages ago that had a wire trick to make it work, but there wasnt enough information for me to do it at the time. it had to do with something about the o2 sensors i belive (tho this was years ago).

im not so sure you could even put this ECU in an AUTO either. i think its only for manual (tho i dont remember).
http://forums.maxima.org/showpost.ph...29&postcount=3


it was recomended to get the greddy emanagement ultimate to do any tuning. i guess it was about the same price but more work to do. but better results and customizability.