NissanFreak2000

Does anyone have the dyno numbers on there Maxima. I have been hearing some Altima people saying that the Altima and Maxima have always had the same hp, but that Nissan understates the Altima, in order to not hurt the Maxima. Can anyone verify this or not.

Mystery

I should be getting mine done on wednesday, stock and then after i get the CE y-pipe on.

I know i've been saying this forever, but CE finally got my things together.

NissanFreak2000

Cool, when you get the numbers, post them. I am eager to see what the actual hp of the Maxima is.

NismoMax80

iTrader: (6)

why would nissan spend the $$ to power the alti as much as the max and not advertise it? they are still 2 different cars. there are way more features still on the max unavailable in the altima.

power comes from more that just the engine. and it is only with the SER that they both have the same engine, so these 2 are close, but there is still more in the Max.

viguera

iTrader: (1)

Sooo... is it Wednesday yet?

SteVTEC

that was the 2002-2003 Maxima. The 2004+ Max definitely has more under the hood than a 2002+ Altima 3.5. It's a lot heavier, has very beefy 18" wheels to spin up, yet it can still run mid-14's with an auto.

carcus

Dyno chart done by Injen, not an independent dyno, but seems accurate. This is for a manual trans 2004. Off of the injen site.



Guess it is a starter until we get something different.

viguera

iTrader: (1)

Ouch... is it just me or do those numbers look fairly painful? It almost looks like RWD powertrain loss instead of FWD... unless I'm not doing the numbers right, FWD loss off 265hp stock should leave at least 225 at the wheels... no?

* goes back to the numbers *

JiuJitsuThug

iTrader: (1)

viguera - Unfortunately those numbers are pretty accurate. I had mine dyno'd with a Stillen & Greddy's and came in around those same numbers too... I was pretty disappointed but oh well - its a sedan not a race car. That's why I'm upgrading to the M3 next year

viguera

iTrader: (1)

Well it's a sedan, but that still doesn't explain where the rest of the power is going...

Sitting on the drums, there's no aerodynamic concerns... the weight of the car isn't really a big deal. So where is the power going?

Don't get me wrong, I think the car is impressive by itself, but going from 265 BHP to 207 at the wheel is kind of extreme for a FWD car, isn't it?

Somebody just let me know what parts I need to swap out, that's all I care about...

JiuJitsuThug

iTrader: (1)

"Somebody just let me know what parts I need to swap out, that's all I care about..."

LOL - so true...

I asked the techs that ran the dyno and they said the 265 # that is advertised is a dyno run straight from the engine, no other components (ie: crank, pulley, etc...) That can seriously drain the power quick. BTW - my dyno numbers were 218 to the wheels...

3.5 Lover

This brings back the suspicion that most at Altimas.net were stating two and a half years ago when the redesigned Altima came out. Everyone suspected the 3.5 engine in the Altima and Max had the same HP. Each year they seem to increase the HP by 5 or 10 HP and if you race someone with the same mods, Altima or Max, they would be about the same speed if you utilize simular drivers. Those dyno numbers look like what I got when I had a 2003 Altima 3.5. I wish I knew someone at Nissan that could explain this.

viguera

iTrader: (1)

We seriously need to get SSR cracking on that supercharger...

But from what you're saying, there are no bolt-ons that will provide any kind of significant boost to the wheels, no matter what any company tells you. Tacking on an intake and exhaust will give you a neglegible increase, for example...

Seems like short of going FI you need some major work on the car to get some power to the wheels -- UDP, headers, what else?

Somebody make a list, quick!

msoemax

Well, there's one good side to this...Just think what the alti SE-R dyno #'s are if it has a 250 HP engine. Probably under 200....food for thought.

Glude

iTrader: (5)

Actually if I had to guess, I would think the altima seR will dyno high than our cars. Headers should show a nice increase in power once they are available. The UDP did help on my car, but I cant say how much. I need to dyno my maxima sometime soon.

Mystery

Sorry i did not post earlier, home for the holiday and no time to post. The dyno went well, and the actually charts will be posted later in the week after custom enterprise posts them on their site.

If i remember correctly the hightest hp for the stock run was 223 whp, and after was about 237 or so. So the pipe did have a gain of at least over 10 hp. Also the torque number went up about the same as well.

I unfortuently left the papers back in NY, but i'll be back there on sunday to pick them up. CE has all the orginals and by mistake gave me 2 copies of the before. But as soon as i get a chance i will post or link them. But we should have the numbers posted by tuesday at the latest.

viguera

iTrader: (1)

CE is "right up the block" from me in Danbury. If your numbers are true I'm setting up an appointment...

Glude

iTrader: (5)

Wow thats awsome gains. I want this y pipe now. I was going to wait for headers but I heard CE was going to release the remainder of the headers so people who buy the y pipe can complete it. Could you post your tq numbers too, before and after please.

akaxmrxhammer

wow... 10hp gain? that's pretty impressive. ce y-pipes on my christmas list...

mattlerose

Can you give a link to their website?

viguera

iTrader: (1)

They run a banner on the site... I wonder if they give discounts or if we should come up with a group deal...

www.customenterprise.com

JiuJitsuThug

iTrader: (1)

WOW - 223 stock and I got 218 with Stillen Intake and Greddy's WTF?!!! *kicks rocks*

My tech didn't bring my dyno to redline and backed off at 6K rather than 6.5K so maybe that had something to do with it...

Congrats though - those numbers look great.

Glude

iTrader: (5)

didnt you dyno 230 tq though jiujitsuthug? thats pretty high for tq numbers if so. Im in on a group deal if anyone wants to start one.

akaxmrxhammer

i'm definitely in on the gd but i'm going to be away till 20th of dec.

Mystery

Ok Here are some pics of the charts. Unfortunently I'm unsure of which table i have, 2 of the same, i think its the before but i'm not sure. So i'm going to wait on posting those numbers till i'm positive. Plus the picture i took of the table wasn't coming out good. But anyways here are the charts:

Glude

iTrader: (5)

SO what were the before and after HP & TQ numbers? I didnt see em on the chart.

jeffd1979

Ouch that is alot of drive train loss... But as someone else said this is a sedan not a race car...

makes my 2002 camaro z28 look great which dynoed 324RWHP / 331 RWTQ bone stock w/ 500 miles on the car..

viguera

iTrader: (1)

Well sedan or not, that loss is uncommon for FWD. There are plenty of FWD sedans out there that follow the standard 15% drivetrain loss. I think what happens is what someone else stated before... either Nissan is over-rating the engine (which never happens, since they can get in trouble for it) or they're claiming HP at the engine, not even at the crank.

Either that, or the car is just bleeding power from somewhere...

Mystery

Like i said in the post, i can't find the actual table. I have a duplicate one, but i'm not sure if its a before or after table. I should be getting the original from CE soon.

Stephen Max

iTrader: (59)

My guess is those heavy 18" wheels are sapping a lot of power.

Glude

iTrader: (5)

But would that show a power loss on the dyno?? I never thought about it as the 18s were taking away power, just the fact that they weigh around 25-26 lbs and can be replaced with some lightweight wheels to speed it up. There are some 18s out there that weigh 15-18 lbs, I just gotta find a nice looking set in my price range.

Stephen Max

iTrader: (59)

Absolutely. A certain amount of power is needed to accelerate the wheels on the dyno stand. Wheels with higher inertia (proportional to product of mass and radius of gyration) are going to take more power to accelrate than lighter wheels, or wheels with a lower radius of gyration.

Same thing as for flywheels.

Custommaxima.com

I have James' dyno results here and will be posting it up on our site asap. I have Tyler working on scanning them and posting them up on the site. I'll post on here when they are up. Thanks for your patience and thanks again James for letting us use your Maxima.

-Greg
Custom Enterprise
www.CustomMaxima.com

Custommaxima.com

Just got it up on our site. Looks like 12hp gain and 11ft lbs torque on his auto trans pipe. I am expecting more on the manual pipe which we will test next week on our prototype piece.
Here is a link for your reference: http://www.customenterprise.com/view.../vts/design004

We put the automatic pipe on sale right now but only have a few left in stock. We will have more after Christmas. If you are buying for a Christmas present pick it up this week as they may be sold out soon. The manual pipe will be in stock again hopefully before Christmas. $199 for this pipe is a smoking deal!!
Thanks again to James for letting us use your 2004 Maxima!!
Thanks,
Greg
Custom Enterprise
www.CustomMaxima.com

SkyMaxGTR

i just recently found out about this, so i look for it everytime i see a dyno chart. isn't the tq curve and the hp curve suppose to cross at 5200 or 5250 rpms. it looks like the injen dyno crosses at 4***rpms.

Stephen Max

iTrader: (59)

The curves will cross at 5250 rpm IF the tq and hp scales are the same. If you look at the hp scale, you will see it ranges from 25 to 225, whereas the tq scale ranges from 25 to 250.

NmexMAX

iTrader: (22)

What most people state is that 02-03 Maximas are overrated, and 04+ are underrated.

Could this be just that the 02-03 are rated correctly, while the 04+ are underrated? Also, the drivetrain loss for the auto vs 6spd in the 02-03 is not nearly as much as it is in the 3.0's before, does anyone agree here?


All this points to the 04 having a really underrated engine, where the fastest stock 04 in the 1/4 mile is an automatic at 14.3.

Glude

iTrader: (5)

Ok, so the manual y pipe is 199 now on sale? For how long?

SkyMaxGTR

Oh i see that now. thanks for clearing that up stephen.

Custommaxima.com

nope only the automatic is $199