Ok, my warranty has run out on my 99 SE. What can I do to the car to bump the HP up to around 225? This is my daily ride. Also the family car that a 4 year old and a 1 year old ride in so it still needs to be a little quiet. Any suggestions are appreciated and if you now the prices of the upgrades please post them.

 

Get a Y-pipe and the MEVI, but keep the stock intake and B-pipe and that would probably put you at around 225HP (crank) or so.

 

my daughter rides around in this..


BABY SEAT



y pipe, intake, Varible intake (VI) will get you there

 

225 at the crank? wouldnt a simple intake/y pipe combo get you there? ...or is the 15-20 hp from a y pipe at the crank? (always thought it was WHP)

 

The stock Maxima is 160 - 165HP at the wheels.
Y-pipe gives 15HP - 20HP (at the wheels) as dynoed by many members.
Intake gives 5HP - 10HP as dynoed by Frankencar and other members.

That all adds up to 180 WHP - 195WHP at MOST from intake and y-pipe, which is nowhere near 225WHP. You'd definetly need more mods.

 

I think he only want 225 at the crank.

 

actually the max is 190 stock so the y and intake could get u to 225 according to ur math. but there is no way in he** you are going to get 20 from a y and 10 from an intake and keep it legal. stillen's numbers are a bit inflated. maybe you'll get 200hp even increase with both.

 

I do believe he said "at the wheels" where with a 5 speed you lose about 15% from the crank and about 20% in an auto so we put down ABOUT 165 at the wheels....

 

Actually I know what the Maxima is stock... I'm not talking crank HP in my post. Please re-read it.

As for 20HP from y-pipe, I am only quoting what I saw on the http://www.motorvate.ca website which I believe are org members who dynoed. +18HP/+19lb.ft at the wheels... and I said 15-20 wheel horsepower. Looks right to me.

For Intake, the Frankencar website has a dyno with a 2K2 Maxima giving +10HP to the wheels... granted a 4th gen might not be as high but Steve did say that it will be quite comparable... and I said 5-10 wheel horsepower there. Looks right to me once again.

 

A Y-pipe is good for 15hp at the wheels easily, 20 possibly. Intake is good for a nother 5 or maybe 8. Intake and Y pipe will have you pushing between 175 and 185 at the wheels, just a few hp shy of where you want to be. If you want to keep thing's quiet on the exhaust side and want a little more, MEVI, ECU, UDP, B-pipe and 5th gen muffler are more options you have. Using all of those inconjunction would have you pushing about 200 at the wheels.

 

Nealoc187-What can you do to a 99 ecu?
-Thanks,
Dan

 

Just curious: what is a mevi? Is that something exhaust related?

 

Middle East Variable Intake... something I'm researching right now actually. From the sounds of it, it is one of the best bang for the buck for performance mods you can do.

Now, to find a source with a good price.

 

search in the GD,they got pretty good price there,

 

The dyno data I've seen show the MEVI good for ~30 hp, but that is at redline where the hp has dropped significantly on the stock motor. The MEVI only shows very slight (if any) gains when it comes to increasing peak hp. It's a great mod, but don't expect it to do much to peak hp.

 

+30whp?

And is that on top of the +5whp - +8whp from a hybrid intake?

 

don't forget that the VI has that surge of power when hp drops normally on our cars. the VI has nothing to do with an intake.
here's a dyno to show what I am talking about
enjoy

 

Unfortunately nothing, ECU is only available for 95-96, and will work in 97/98 as well but I've never heard of one being used in a 99. I know at least SOME 99s (possibly the later production models) appear to have a totally different ECU, rather like the 5th gen ECU.

 

The 30 hp gain seen in dyno plots most likely includes a modified intake as well as MEVI. I don't know why anybody would run a stock intake with a MEVI.

 

I need to correct myself. Or at least make it clear here that I am talking about NA applications. Since a SCed Maxima makes peak power at redline, the MEVI will increase the peak power by ~30 hp.

 

In my Dyno my peak HP increased 8-12HP with the MEVI, but I also have like every bolt on, so that could contribute to it. Which is really nice and once you hit the the peak HP you just basically plateau...at least in all my dynos with all my mods it was like a flat line give or take 1-2HP when I hit my peak around 5600 or so. Which is really nice, plus you gain about an average of 15-20HP between 5200-6800RPM range over the stock collector.

-John

 

please, stop talking about it!!!