EDIT: IT Works with all VQ engines!!! See post #14 below


Hey yall I was reading through one of my favorite magazines- Stillen Sports Cars mag and I realized that you with the 99s and 98s might be in luck. Stillen is making what looks like an additional ECU daughterboard that may work with your ECUs to get the gains that Technosquare and JWT ECUs (doubt any rev limiter raising though) deliver. Im not sure that it works with all year models but I would look into it....

Its called the "VQ Pro" and the catalog describes it as "provides better fuel/air management, increasing overall performance. While there are power gains throughout the entire RPM band, the most dramatic gains are felt above mid throttle and extend to redline. This unit wires directly to your stock ECU, unlicking the hidden performance in your vehicle. Program may include dual mapping depending on vehicle and trim. Also includes bypass connector that returns ECU to stock programming mode."

Good luck, I hope it works out!!

-Spaniard.

BTW I tried calling stillen to ask them but they are closed at the moment.
EDIT: Its got a "NEW" logo splashed by the product - and its not on the website yet... here- NM- heres a scan of it

i hope so!

F****************** Yeah

I hope the curse has been lifted!

Thanks for the info.....now everyone that has a 98-99 Maxima....call or email Stillen to get the facts straight and maybe have them install one in a Maxima to prove that it works.

So did it list the 4th Gen as an application?

That would be sweet

I scanned as much as there was.. You know as much as I do.. fingers crossed!

well since it is named the VQ-Pro makes one think it has a pretty good chance of working with our engines.

Let's just hope!

Or it's probably for the VQ35, which I wouldn't doubt.

And there was light...

Hmmm. That is a REALLY SMART idea to make a daughterboard. Maybe one of the other companies will copy them. This will make it alot easier since all hte have to do is figure out the wireing and how to remap everything. So if they have a dump of hte ECU eeprom/tsop they can make this daughter board.

Damn, so the 97's are still screwed.

Well, out of curiosity I called Stillen and asked about the VQ pro...

GOOD NEWS! No, GREAT news!!!

heres what I got from the rep:

1) about a month away from production release. they are still fine - tuning it and getting good results he said

2) It will work for any VQ motor!!! Any VQ30 or VQ35 even!!!

3) They are seeing between 7-10% HP gains across the band mostly from mid to top

4) Estimate cost of 4-500 bucks.

Now does that rock or what? The boys at Stillen have done it again

Not to sound like an @$$... but I think anyone who is excited about this should never again refer to Stillen as Stealin.

IMO You get what you pay for and Stillen is the company that innovates- they practically created the Maxima aftermarket. GO STILLEN !!

Sweet. I'll try and get more info from Stillen on Monday and maybe even try it out. This is good news.

I need to know the gains asap dyno that is.

LEMAR

Awqesome I hope it really only is a month! I do have to admit that when I owned a 96 200sx many years ago Stillen was the first to make an intake for it-good quality as well. And they have pioneered Many other Nissan products,

Get E-Manage.

news for the 97's?

I guess you could try to approximate what the pros are coding for you... If you had the knowledge and inclination to get in the trenches so to speak.

97s are included in the scope- its all VQs (!)

That's good news. Wonder what it all does. Sounds like obviously it modifies the air/fuel ratio, wonder what, if anything, else. Air tweaks could be done with and AFC as well. More aggressive timing would really make this a worthwhile investment.

question - does stillen have the ability to increase rev limiter?

I wonder... I didnt see more than a 10% increase in power with the JWT ECU and so.. if they are getting similar increases I would tend to think they are managing to change most or all of the same parameters. But that is definately a gut feeling since actual #s arent around yet.

Give em a call? Ask about timing advance while you are there!

Man this is the best news I've heard in a long time......hope it comes out soon so you guys can test it for me .

I hope the gain aren't like a JET ecu.



It needs to be like a G-Force/Technosquare ECU programming and a JWT revlimiter.(your choice of limiter)

Do you mean JWT? Dont tell me you are gonna dis the JWT ECU...!?!

No I meant JET
http://maxmods.dyndns.org/index.php?MaximaEcus
and a BS Dyno http://custommaxima.com/JET.php

So wait, I will end up spending, or should I say throwing away $500 for a 7 hp gain???

...you must be sh!ttin me!!!

Unless you did not make a mistake and you really did mean 7%, which would be ******* awesome of course and would lead me to buy the stillen ECU upgrade in notime!!!!!

That's approx. a 14 hp gain, at the least, which would own! Even better if it were 10% - delivering an astonishing 20 hp gain - WOW!

Anyway, do you guys know what would actually cause the hp gain? I mean better air/fuel ratio obviously would, higher rpm band, and what else???

It's 7-10% Mac.

Thanks Dave. I will get one

correcto... And I dont know what they are tweaking with the daughterboard... Ive called them already so... if anyone is dying to know... its a toll free call...(hint hint)

has anyone really dynoed the jet ecu ?

does it raise rev?????????????

I bet it does not raise the limiter.

You should write them and tell um.

Woooooooo Hoooooooooo, wait, i still need to do a 5spd swap

i dont think ive ever been this happy in my entire life

So you have never been so happy to let go 500-600 dollars of your money.

Hmmm.