Okay, I picked up my 98 maxi SE with about 98k miles. Its automatic. Being curious, I decided to test out the VQ30. I floor it,and it picks up like a ****(you all know that torque), which gets me to about 40. Then it shifts to 2nd and it takes about 4 mississippis to get to 60. In simple terms, my 0-60 takes, on average, about 11 seconds. Is this just stock, or is something up in my engine causing this?

 

Are you timing your 0-60 by counting Mississippi's?

Stock 0-60 is around 7 or 8 seconds IIRC.

 

Stock IIRC should be around 7.4 ish on the automatic SE and 6.5 being the lowest for the 5spd SE.

Perhaps your Max isnt running right?

 

i dont know :[ i dont think anything is wrong with it at all but is there any common problems that effect it?

 

You're saying it picks up like a ****, but still takes 7 seconds to get from 0-40 in 1st? I have a manual but I can redline to 1st a lot quicker than that it feels like. Sounds like something is wrong to me.

 

1st and 2nd gears redline pretty quick if your flooring it. I think 3rd gears that takes the longest to redline.

 

in the auto 2nd is my favorite gear. not sure how that relates lol

i don't think your test is very scientific. i would start by checking for the'ol silent knock sensor code!

 

1 mississippi
2 mississippi
3 mississippi

Seriously...

If your curious on how your car performs, put it on the dyno or take it to the track.

Report back your findings and get out of Mississippi.

 

Or tap your VSS and convert the raw data output to Hz. But this would entail factoring in your tire size/load, etc.

 

get out of Mississippi

 

I hit 60 pretty quick, redline in 1st til about 40 then ill hit 60 in 2nd right before redline. havent timed it but it seems pretty quick. and i think i need to change my plugs too

 

Are you running premium with a good KS or resistor at least. Hows your compression? Air/fuel filter?

 

This is most accurate without getting the car mags involved.

 

Yeah definitely check your spark plugs (NGK Only), knock sensor, and 93 octane gas. I never timed mine but I know it damn well gets there quicker than 11 seconds on my auto and I am screeching tires going into second gear.

 

Imagine at Mt. Everest, it be 20 seconds. Altitude greatly affects that time too.

 

How many miles? Maybe there's just a bunch of gunk in the intake.

Try Seafoaming and see if it improves.

 

Try using a stopwatch first. THEN worry if your timing is off.

 

i have a 2000 SE and im seeming to be in that range.. or was before mods other than intake.. but im in montana over a mile high..

 

funny shyt

+1

use a stopwatch and then time it. should be around 7 secs. Check for KS issues. 11 secs is 4 cylinder times.

 

My 5.5 gen AT does 6.3 @ mile high verified by my VSS.

 

problem.... 0-60 in 4 Mississippi,
Solution... Go to Maine, "smaller state", try it there, maybe you can go 0-60 counting Maine

Or, just change your oil, change your plugs, check knock sensor, air filter, FUEL FILTER?, tire presure, is your exhaust backed up?,untedected misfire?, car going into a semi limp mode?, coil packs have the right resistance?, are any vacuum hoses cracked or disconnected?, what motor oil are you running just curious, are you driving with your 2 front windows down?, was a/c on when you did it?, do you have a bunch of trash, junk, CINDERBLOCKS, extra transmissions, speaker systems?, FAT CHICKS, or anything that mayweigh your vehicle down?, have you checked your tranny fluid?, are the shift solenoids in the tranny any good?, are your gears shi**ing on you?, Are you sporting 30" rims?, And last but not least........ IS YOUR THROTTLE CABLE ADJUSTED CORRECTLY? <- i mean anything can happen right? But just incase

I mean, those are most of the things i can think of that may cause your "sudden" decrease in such "pwer" you crave.. i dunno,someone chime in after me. :P

 

well, i came home and put premium in it and used a stopwatch. now i get around 7-8 seconds which seems about normal for a recently purchased uncared for car. thanks guys :]

 

If you open your gas filler door, there should be a sticker there that states "For Maximum performance, use premium unleaded"

 

"When did they stop teaching math in schools" LOL

 

ughhh, i was just using it as a metaphor!! and btw glws your maxi is freshh!

 

Thanks man...

BTW... "when did they stop teaching math in schools" is a quote from njmaxseltd that was posted in another thread. I just thought it was funny.

As far as your acceleration... Put on a basic intake (cone filter) and exhaust, and you will see a huge difference. Well worth the little money its gonna cost you to do. Good Luck!

 

cone filter doesnt help it changes distance air moves and may change power band ever so slightly. i think your thinking of the 00vi

 

Incorrect... So tell me then, a cold air intake changes the distance of air flow since it runs down into a fender right? So by that statement you are saying that even a cold air intake will decrease output over a factory intake setup??? I don't think so

Its not the distance of airflow, its how much more air you can get through your engine without resistance.

 

more air in is better k&n drop in filter does that, i use one. Changing the length of the intake changes its resonance frequency which will "change" power curve a bit not increase it. cold air is like 1 hp with an NA car our stock intakes are pretty well balanced.

 

im glad theres a 0-60 thread i did my 0-60 with a stopwatch. my time was 8.3 seconds. i think thats pathetic. now, let me tell you my mods, acchhem, 99 se, auto, loaded, 209k miles no fat chicks, new plugs, in good repair, custom cai, headers, y pipe, factory cat, cat back, knock sensor was replaced. is my factory gauge that far off? 60-up is increadable though

 

Not really sure how much of this thread applies to long tube setups on an NA engine, its been a couple years since I read it. This pretty old thread had dyno charts showing a loss in torque going from the stock mid pipe to a short ram Frankencar intake. Links are broken, but the discussion is still there. I've been running a stock mid with the resonator removed for several years now. Hack the airbox, install a panel K&N, save a little more money and get a y-pipe. Like many before me have said: "What the @#$% is the point of spending a ton of money on an intake for a bolt-on NA car?" My understanding is that the intake is a vacuum and the shorter the distance the better, sure colder air is more dense, but how much of that is actually making it all the way to the engine? The stock intake mid pipe is a helmholtz resonator and was very well designed for the 4th gen 3.0. Basically speaking, it is very good at reducing turbulence which allows the air to flow freely into the manifold. A poor intake design for our cars would introduce more turbulence into the intake and manifold, decreasing performance. (It does sound damn good though.) The crackhead has spoken.

-crackhead
(Good enough for my 15th post in almost 5yrs? I think so...) (I loves me sum smilies!)

 

+1 to that. Ima MIAH. The turbulence I was talking about in my post is the breakdown of the resonance frequency. Couldn't think of the right words cause I shoulda been asleep already... (a post without smilies is a wasted post.)

-crackhead

 

damn should do much better then that specilly being such low miles. i would check out the knock sensor that will throw timing off and do what your talking about low rpms no power.

 

Clean your TB peoples it helps ALOT and it revs up quicker!

 

So, from what i gather, leave the mid pipe stock, but ditch the stock airbox and replace it with a good cone filter, right?

 

I havent modded my car so I cant speak from experience, but its been stated time and time again that the best performance will be seen with stock intake. A true CAI might benefit from the colder (denser) air, however a ram and cone will get hotter air than stock and the velocity will drop due to the larger diameter intake. Higher velocity creates a ram effect, just like going 4" exhaust would kill your lower end.
I you have a limited amount of funds, start with Y pipe for exhaust, and then a less restrictive muffler.

 

go with this guy


http://www.amazon.com/gp/product/B00...ef=oss_product

 

ohh price went up i paid 16.99 at the time.

still beats K&N 49 bucks tho!

 

This is a great thread for me right now! I'm a double newby here, first Maxima (98 se 5 spd, 187k) and a new member so I cant post yet. The second day I had the car the check engian light came on and I pulled in to an autozone for a check of the ECU. I got P0301 and P0325. Sounds like the knock sensor is a common problem area. I thought mine was running ok until I did an unscientifc test of my 0-60. I got 12 Mississippi's. KIDDING, I really got just over 9 seconds by my stop watch. This was with premium fuel. Then I let a friend drive it that has had several of these Maximas and he confermed it seemed weak to him. Since i'm new to the forum, can someone teach me how to research these codes and how to repair them on the forum? I know it upsets the elders when you just ask a question that has been asked before and the ansewer is somewhere in the fourm. Thanks guys

 

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