Is the ecu alone worth the money?What real gain in et or mph can I expect?

 

If you're not getting a JWT ECU upgrade then go for it. However, JWT programs the ECU according to your mods, so to get that ECU upgrade before mods would be pointless because you'd have to spend more money for them to reprogram the ECU.
So in a nut shell:
JWT ECU: wait until you've done all the rest of the mods.
Any Other ECU: Go ahead, you'll love it.

 

Actually its G-force ECU's that are programed according to your mods, JWT has a standard program that they'll give you. I'd still agree that its better to get all of the other mods first.

 

I appreciate the advice. I would just like to add a little extra horsepower without breaking the bank. I have a pulley, intake, and y pipe. Everyone says get a b pipe and/or muffler next. So maybe I will do that.

 

Bpipe gets you that little extra hp, but muffler is mostly for sound. I would try and get a mevi and ecu. Now thats worth the money.

 

I would go for the y-pipe first. then the ecu. If its a group deal or something you need to jump on right away then sure. Just dont expect too much out of it. If you have go intake and exhaust flow then you will really notice the difference. To me after all my other mods the g-force ecu was an eye opener. It was my best mod by far. yes even better than the y-pipe. However I already had the y-pipe so i have no baseline info. If you look at any of the dyno graphs though you will see the increase with a free flowing exhaust vs just stock.

At the very least hack your airbox for more airflow, or get a POP or CAI intake.


Brian

 

I disagree. The ECU is one of the mods that can make a difference in the power your car produces WITHOUT needing more airflow. It leans out the AF and advances the spark, neither of which require more air, but both of which give more power. ECU would probably be my 2nd mod after Y-pipe.

 

But the ECU can be counterproductive if you ever want to go FI. I am waiting for my turbo and mevi before i get my jwt ecu.

 

I totally agree with Nealoc on this one!

 

Not really. Once you have your ECU upgraded by JWT they will reprpgram it again for a different set up for $100. I am almost %100 positive about this, if I am wrong someone correct me.

 

yup, once you make the initial plunge for the JWT program, its $100 for any modification to the ecu. exception being their nitrous control. that is going to cost you another $400-%500 or so due to the fact that they need to solder in another board for the nitrous control.

example on the JWT programming for $100....

original program for NA - $590
upgrade to a SC...
reprogram for 370cc injectors - $100
upgrade your MAFS to Z-32 at a different time...
another $100 to program for MAFS.

so for each time you send it in...its $100.
Turbo program would work the same way.
they will only do a SC program on the ecu if you have the 370cc injectors.

--Paul

 

Need to ask you a question. I just installed my Y-pipe, Carsound-Cat, and Free flow Muffler, Quaife, ATC, and Findenza. The car pulls extremely well.

With the original JWT Program, will it cover the Mods for Exhaust??? Example, Y-pipe, Hig-flow CAT, and Free flow muffler. Or would you need to specify That as an additional Mod???


Also, I assume the Z-32 MAFS is for a SC setup???

 

the JWT NA program is a blanket program...it doesnt matter what mods you have. it will work well with the mods you already have. you have to specify when you get into modifying for the boost programs. yes the Z-32 MAFS generally is for boosted cars.

so just order their NA programmed ECU and you will be golden.

--Paul

 

In my instance I have no way of knowing what my ECU alone would do to my car Stock? And I am not ready to replace my stock intake and exhaust to find out.

I did not see your last post SLOW96MAX. Otherwise I would have said go for the ECU knowing you already have almost everything else.
You did not ever mention what type of ECU you were getting and I see JWT being thrown around a bunch in this thread. Is that indeed what you are loooking at? That or the G-force is all I would get. Stay away from the manual ones and if it is too cheap (less than a few hundred bucks)then it is probably a waste of your money.

At any rate your car is ready now for the ECU with the UDP, intake, and y-pipe you already have. You might look at a b-bipe from budget, but I really did not notice much if any increase from mine. And the muffler is up to you. The only reason I would replace my muffler is if I wanted more sound or if it had a hole in it. Which mine did, have a hole in it. But I went back to a used stock muffler. I can tell you this, avoid the straight pipe. Its a waste unless your boosted. I have one and notice no difference only loud as hell with it on and very bad smelling!

Nealoc187 in your post are you saying that less Air and Fuel and more Spark will give you more power? Or am I misinterpereting this "It leans out the AF and advances the spark"

 

Where can i find more about this: Z-32 MAFS? Tried searching but couldnt find anything on it.

 

Thanks for the help. I think I will do that. I will probably buy the g-force ecu. I will later get the mevi when I get the money. I just want to get in the low 14's. I don't think it is going to happen.

 

If you are going to get the MEVI for sure it would be really dumb to get the G-force ECU.

You want a low 14 sec car? Then get the JWT ECU and MEVI!!!

 

Would it be possible to get into the low 14's with bolt-ons, JWT ECU and extrude honed intake manifold rather than a MEVI??

 

A leaner air fuel mixture will give you more power to a point. An ECU can't change how much air is coming it, but it can change how much fuel it gives. Leaning out the mixture (a little less fuel) will give more power to a certain point. Once you reach that point you start flirting with engine damage but neither ECU being talked about in this thread leans it out that far. Advancing the spark (moving it to an earlier time in the piston stroke) will again add more power to a certain point. You advance it too far and you again start flirting with engine damage but neither ECU advances it far enough for you to have to worry about that.

 

SO no one makes an ecu for a 97?

 

I have a 96 ecu from g-force in my 97 maxima and it works fine. no light more power no problems....

 

grrrrrr...