OK folks- I am getting a lightweight flywheel and aftermarket clutch kit..

Right now I am only concerned about performance mods and want to stay N/A - (I just got the JWT ECU and dont want to have to deal with changing it anytime soon)

What else can I do to gain power/handling? (besides MEVI)
I have done the following:

JWT ECU
Stillen B-Pipe
Stillen Y-pipe
Stillen Muffler
Stillen Front Strut Tower Brace
Stillen Rear Sway Bar
Eibach Pro-Kit Springs
Slotted/Cross Drilled rotors
Light rims (12 lbs)
Unorthodox Racing Underdrive Pulley
Warpspeed Metallic Substrate Hi-Flow Cat
Custom RAM-Air-CAI
K+N Air Filter
NGK Copper (cold spark) plugs

Fluids:
Castrol Syntec Full Synthetic 5-50
X1R oil additive
Redline Lightweight Gear Oil
Royal Purple Coolant additive

 

Where did you get 12 lb rims from? What size are they?
Only thing I can think of is bigger throttle body? Injectors? Fuel pump?

 

some lightweight reduction mods? seats, hoods, etc?
if you want to spend the money i guess you can buy some cams but i hear there is a loss on low end. (im getting on error on searching so i cant check the facts)

 

JWT cams, apexi s-afc, stone racing/cattman header (u will need to swap out ur stillen y-pipe with their y-pipe). pathfinder throttle body. hyper ground system, short shifters...

can't think anymore...

 

i dont know if you would consider this a "performance mod" but brake lines sure do make a difference.

maybe fuel system additives/injector service if you're not doing an upgrade on them

 

why? please explain

 

Whats an s-afc?

How much gain for headers? I heard that they are minimal...

And most importantly- cause I am interested:

Pathfinder Throttle Body:
1) How much gain
2) How expensive
3) Compatible with JWT ECU?
4) Would it give further gains with new fuel injectors and if so what would you guess they are?

Thanks!!!

 

apexi super air/fuel controller >> http://www.apexi-usa.com/electronics_safc.asp
the gains on N/A are not too much, probably 3-4WHP if properly tuned.

stone racing header + y-pipe on mr. eous's 1999 SE-L:

before:
174.6whp - 189.2wtq

PopCharger
Midpipe
Testpipe
Stock 16 SE-L rims

after:
189.13whp - 198.58 wtq
stone racing header
stone racing y-pipe
PopCharger
Midpipe
Testpipe
Stock 16 SE-L rims




i'm not personally too experienced with pathfinder throttle parts.... but i know it's definetly cheaper than JWT ECU.

 

From machiii.net

They are small 15x6.5 rims- dont look as nice at 16 or 17s... but they spin up quick!

they are rota slipstreams for $450 a set shipping included
The guy gave me a killer deal since I picked em up and 1 had a scratch on it. Like the set was $375!! So I feel the need to pass some business his way whenever I can.
check out

www.machiii.net

Tell me more about injectors and what I can expect? I thought the air was somewhat of the limiting agent not fuel so would I need a new throttlebody (ala pathfinder) to maximize that route?

Tnx

 

to my knowledge (i may be wrong, if so correct me), since pathfinder 90mm throttle body is bigger than stock maxima throttle body, therefore allowing more air-flow from the intake path. basically when you go WOT, more air can be inducted to the engine with pathfinder 90mm throttle body over stock, therefore more WHP.

 

hks twin power ignition - most people say wont do much for us

cattman headers - with more mods , maybe more results ? you have lots of mods so with mevi maybe a bit more can be squeezed out of them over y pipe alone.


fidanza flywheel - maybe something here but im not to clear on the flywheel thing. something to have laying around in case clutch goes out

cf hood - they say 20 lbs lighter or more

odyessy lightweight racing battery - between hood and battery that 35 pounds off the front, might help you turn better and nice weight reduction.

racing seats if you dont have them - another BIG weight savings if you have leather seats


hey spaniard did you dyno at that meet, pm me over some results ...

honestly i dont know what we can do at this point - turbo, or nitrous

 

Wouldnt most of those gains be the Y-pipe and not necessarily the headers???

 

hehe he's got that already.

possibly...

 

Thanks for the responses. Im interested in the Pathfinder Throttle body so I am gonna start a new thread with my questions...


(check out the new signature!!)

 

If you have the Money you sould get this...
http://www.stillen.com/Sportscars_de...id=3156&page=1

 

wooooooo that sig pic is sick! i think ur best bet is to do some weight reduction. the headers will yield you somewhere like 4-5 whp more with the mods u already have. the pathfinder tb is best for FI in my opinion. you would also need a custom spacer made for it, so keep that in mind. good luck

 

Just out of curiousity, if you've got the JWT ECU, why not get the MEVI? I think it's only $100 for them to reprogram it, so with a 7,000 RPM redline and a MEVI you'd be in nice shape. Maybe throw in some cams while you're at it...

 

Thanks!

On 2nd thought I probably am just gonna have to stop modding after the MEVI.

Its getting ridiculous!

Oh, but I really need better brakes... Great.. Another $1500 plus 16 inch rims to fit the fastbrakes and since they have to be SSR type C thats another $1000. This modding thing I swear is going to take all my scrilla.

 

They don't Make those JWT ECU upgrades for 99 Maxima's right?

 

I dont know if these have been mentioned... but for performance:
-Subframe connectors
-Energy Sus Bushings
-Better struts/coilovers
-Stickier tires

try those out

 

Why are you using colder plugs?

 

Nope, it doesn't look like they ever will either despite the demand for one

 

Why don't they make it, is it because its harder to make one for 99 Maxima. If the Engine is the same from 95-99, why it woudn't work in the 99 maxima?

 

you're crazy.

and so is your ram-air CAI!

 

The engine is the same, but the ECU is not. Correct me if I'm wrong, but I'm pretty sure there's like 3 or 4 MINORLY different versions of the ECU (95/96, 97, 98, and 99)

I forget how 97 is different, but it was changed; 98 it was changed because of the digital odometer, and 99 is different also.

ALSO: The Pathfinder TB is 70mm, not 90mm.

 

Bolt On Turbos!!!!!

 

Poly-urethane motor mounts would help with power transfer. You wouldn't make more power per-say, but you'd put more power down.

I think everything else has been mentioned.

 

i just caught this thread but i am wondering the same thing. if you are running na all the time, you could pick up some power by sticking with the stock heat range.

 

Well, thats a good point..

I figured it would keep the knock sensor from ever getting into the equation
Also, they are cheaper by like a factor of 9...

You think platinum plugs would bring a few HP to the party? Maybe thats what kept me out of the 200 torque club.

 

i am not suggesting platniums, just sticking with the stock heat range of 5. for coppers, you will just need BKR5E-11.

 

Oh- whoops... I just looked at the invoice and thats what I have (the 11's)

I guess I am not running with a colder spark... somehow I thought that coppers did that "automatically"...
Another goof!

thanks for helping clarify..

 

the 11 is just the gap. check out this page for clarification. the stock heat range is 5. if you are running anything above that then that is colder. lower than 5 is a hotter plug.

 

does anyone know what the web addy for the weight redction #'s for the max????? please pm me..

 

BBK owns on the track

 

i know right im still waitin for an ecu upgrade for my 98

 

wow spaniard your brakes look uncomfortable under those 15s. do you have problems with those rims and the size of those brakes.

 

Bigger wheels to fit bigger brakes under.
Subframe connectors.
Flywheel.
Stickers :P

 

Lsd .

 

You'd be better informed if you read my reply earlier in this thread...

 

so are you sure that any upgraded ecu will work with my car. will i just have to check for 5 speed and that it matches up with my car as a gxe