dmbmaxima2k2

iTrader: (1)

Well let's just say that i had a GREAT day. the guys at NEdyno were awesome, professional and helpful. i will be going back there to tune my NOS,

All run were done in 4th gear is a 57degree temp shop with a small fan blowing on the engine, hood open obvioulsy.

i did 2 runs with the intake and 2 without it.

Baseline run: RUN 1 204.1 HP and 226.5 TQ
RUN 2 203.2 HP and 225.2 TQ

WITH THE FRANKEN INTAKE
RUN 1 213.8 HP and 229.5 TQ
RUN 2 213.0 HP and 230.7 TQ

SO let's just say i'm VERY happy with the 10hp increase and 5 ft lbs of torque increase. so who wants to buy my intake. The scan will be posted later today. Also, i started the runs with the intake at like 2000rpms, no loss in low end torque. I'm VERY happy with these runs. i know it has to do with the design of the intake. videos will also be shown too. email me about the intake at skusek_pps@yahoo.com

RussMaxManiac

That just proved the Altima and the Max dyno the same. Interesting.....

gtr_rider

iTrader: (50)

MAXIMUM POWA

mattC

iTrader: (2)

the guys at the dyno were very impressed with the intake. i mean... 10hp out of an intake? Who here thinks that just a little bit good?

- mattC

Frankentake all the way!

infinitiblast

iTrader: (2)

Very nice. Yes very close to the altima that was dynoing 200hp only 4 over ehh.. Hmm sounds to me like the altima is uder rated or the maxima is over rated. Either way still a good number and 10hp cant for sure be felt on the butt dyno!

Vyrus

iTrader: (4)

Hurry up and make one for the 4th Gen! I will be your first buyer .
-Cyrus

UMD_MaxSE

iTrader: (1)

wow.... impressive


intake on 2k2 looks like a good mod

Synki

Wow, that is a great increase for a Max!

Good work Steve.

dmbmaxima2k2

iTrader: (1)

tank u, tank u all. the intake for 2k2's should be ready to ship in about a week. a little longer for 2k's and 2k1's then the 97-99 will be very soon also. 95-96 i have to integrate the Air temp sensor. no JWT style where you just shove it near the cone

spotch

It looks like nissan over estimated the hp and under estimated the tq on these cars....

255flywheel hp = 204whp? The tq is suprisingly higher though.

Looks like the 2k2s are only making 240~ or ho at the flywheel and 266~ tq at the flywheel. That is, if you assume 15% drivetrain losses.....


EDIT: if this has been covered before forgive me, i dont read this board enough

MardiGrasMax

iTrader: (14)

Very impresive.

Cant wait to see the dyno plot.

Was this just a peak gain or was it across the entire "usable" power band?

I would like to see how well it does with the hood closed on a hot day?

dmbmaxima2k2

iTrader: (1)

dyno plot will be up tonight, don't worry. it was a usable gain. driving to the place with my stock intake back on was the longest ride of my life.

emax02

iTrader: (1)

Not bad at all, the intake definatly helped. Thanks for giving us all a good dyno run Steve

Now before everyone starts saying the max and altima have the same amount of power, first take a few things under consideration.
1st the auto max with a intake put down the same amount of power as a stock 5spd Altima and the max put down more TQ. Next point is the 6spd trannies are not as effecient as 5spd tranny's, this could easaly make up for a 10 HP loss on the dyno for the max, then remeber that the max still made 5 more HP. So with that in mind the max is still makeing more power then the altima, wheter or not it's 15 HP more I don't know. Of course these are just ideas, keep them in mind.

Bryan H

where in the hell do 54 ponies disappear too?????

the magical faries that attacked the se-r spec-v as well?

emax02

iTrader: (1)

50.9, and it's called drive train loss.

La Jolla Max

jeez, with the intake, you're making only 7 lb-ft fewer than a certain 11psi-supercharged 2k

the stock power ratings are seriously messed up. Factory, that it makes as someone else said, 240ish hp and over 260lb-ft

Bryan H

im sorry "50.9" freakin ponies running off somewhere is a little over kill.

considering the altima did basically the same hp.

HI i do have a legit point here.

2K2DEMAX

iTrader: (1)

the numbers are not as close as they look. The 5spd altima dynoed in 3rd gear so his numbers will be a little high because of the gear ratio (1.258 : 1). The 6spd max here dynoed in the correct gear, 4th (gear ratio 1.055 : 1). So the max definitely has more power to the wheels.

MardiGrasMax

iTrader: (14)

Yup!

19.9% for drive line loss on a manual trans FWD cars is a tad high!

La Jolla Max

Figure rougly %15-%20 drivetrain loss and an engine that doesn't quite make its rated 255hp, and you have your answer.

dmbmaxima2k2

iTrader: (1)

6 gears though, extra weight.

MardiGrasMax

iTrader: (14)

So, its still outa control. RWD 6spd LS1's dont show that big of a loss!

Y2KevSE

iTrader: (13)

But how much of that is usable? Is it flat across the RPM band like mine?


Nice gains on the intake Steve!

Bryan H

alright, lets see here
celica with an intake and exhaust
172 to the wheels
stock 155
rated 180 stock
not exactly a 20% loss

whats scary is. nissan is getting so blatent with rubbing hp everywhere. its begining to look like they are dynoing AWD cars.

weight means **** on the dyno. only wheel size.

so basically nissan overrated their car. what i suggest is. put some 16's wheels on there. and re-dyno. that might help some.
just a thought.

dmbmaxima2k2

iTrader: (1)

i was thinking 15's if they fit.

harry

the altima guy also did a run in 4th gear with slightly lower results:
http://www.wam.umd.edu/~kevgrob/dyno/dynochart2.jpg
hp: 199.6
tq: 218.5
any way you slice it, the current max and alty seem to be very close to each other in terms of power. 6speed might have higher losses as you say but a 6speed is what you get (as unfortunate as that may be ) and it's putting X amount of hp and torque to the wheels. anyway, i'm still very interested in seeing the actual dyno plot. i hope you can get those scanned soon.

La Jolla Max

maybe not, but I was just makin a point that the 3.5 produces very impressive numbers.

maxed

You guys kill me!

How can you compare any numbers without seeing the plots? When talking dyno'd HP numbers the RPM's make all the difference. I've yet to see a dyno plot that shows the peak torque and/or HP at the same rpms as Nissan advertises. Any dyno numbers that are derived from calibrating the rpms against the stock tach should be taken with a grain of salt. The torque should be within +/- 5 ft/lbs (typical accuracy for 8bit A/D dynos), but the HP could be off by a mile if the rpms are not correct. Dynos measure torque and calculate HP.

Most dyno runs that I've seen indicate that peak torque is happening before Nissan's claimed 4400 rpms, which leads me to believe that baseline RPM's are off. Another example would be to take Nissan's numbers of 255hp @ 5800rpm which yields about 231ft/lbs of torque. If your dyno rpms were low by 200, then the resulting peak hp would be calculated at 246hp @ 5600 rpm.

Newman

iTrader: (3)

so why is a 6 speed transmission considered better if it is less effiecient and results in more HP being lost? what are the benefits of having 6 speeds?

Stereodude

The tranny must have high losses. An automatic 02 SE with only an intake dynod in at only a few less HP. The bottom line is the engine is making 255HP like Nissan says. This Maxima appears to have the same 20% loss stickshift that the SE-R Spec V has.

Stereodude

PhatGuy

No.1 Save gas on highway trips.

infinitiblast

iTrader: (2)

Never heard this idea of a 6spd lossing allot of horse power but... Didnt nissan redesign the auto tranny on this enigne. I cant remember where I read it maybe here, but I thought that nissan like souped up the auto trannies this go around. SO I'm thinking whatever they did to the auto for the 02 has given a smaller hp loss. Who knows! Either way great numbers!

dmbmaxima2k2

iTrader: (1)

better gears ratios make up for it. when your in a gear higher than 1-1 ratio your torque output gets multiplied. so lower gears mean more torque multiplication which yields better hp. and having 6 gears is just kewl to say.

maxed

First of all they are not necessarily less efficient. They do have an extra set of gears but the teeth of the gears can be optimized more for the narrower range of power that they need to handle. The racing gears in my old 5 spd rally car used to have near helical cut lower gears, but straight cut upper gears that resulted in significant power savings over the stock 4 spd.

Depending on the type of driving your doing, the closer gear ratios may help keep the car in its optimum power band more of the time, or vice versa be used to save fuel at higher speeds.

The important numbers to watch (for most of us) are the torque numbers. They are the best indicator of how much power the car may have with the given stock tranny.

Stereodude

Lower highway cruising gear. We have a Dyno of a Auto 02 SE that shows the car has 255HP at the crank. The car seems to have more torque than Nissan says it has. If 20% of the HP is getting lost in the tranny then 20% of the torque is getting lost in the tranny. That means that the car has 282ft-lbs of torque at the crank (figured from 20% loss). The 02 stick Altima that was dyno'd in 4th only had 256ft-lb of torque (figuring 15% loss which puts it's HP 4HP low at 236HP).

What we need is for everyone who dynoed to report at what RPM the power sagged (from the valve timing change) So far from the Dyno's we have... 3700 (Pauld D 02 6 speed Max dyno'd on mustang), 3925 (02 Altima 5 speed in 4th) and 3925 (02 Altima 5 speed in 3rd). Clearly this is going to occur at the same place. What we need to some more people to say where this transition occured.

Stereodude

Polished2002

Definitely a few good dyno runs dmbmaxima88. Your horsepower was kinda close, but you definitely have more in the torque area.

Your intake gain is about the same as what Greg Vogel got.
Greg's Dyno of JWT POP Charger

About 8-10 ft/lbs increase as well as the horsepower being in that range. I'd like to see some more dyno runs from people. Thanks for doing the dyno dmbmaxima88 - definitely appreciated. I'd like to see others as well, more 2k2 Altimas and Maximas.

I just want to have an idea of how much more HP/TQ the engine in the Maxima has compared to the engine in the Altima or whether Nissan is trying to pull the wool over our eyes...

maxed

I thought the 3.5 had a CVT - Continuously Variable Valve Timing Control System delivering optimum power and emissions performance at all times.

It does have a Variable Air Intake that may open at a predetermined rpm. Then again there is also the Variable Muffler with a valve that stays closed at low rpm and only opens at higher rpms, which the Altima 3.5 didn't get. Combined with different gearing that may account for the extra 15 peak HP at high rpms.

Nismo87SE

THe results aren't bad. Especially since people are dynoing at least 10-15tq more than hp @ peak. I believe on paper the VQ35 is supposed to have 246tq at the flywheel. Now ever other engine in the maxima seemed to lose about 23-32tq @ rated rpm peak, so this one isn't different. Besides lets hope nissan found a way to keep the VTCs from failing. Otherwise your VQ35s will be tick, tick ,ticking time bombs sorry for the VE humor .

akrus

iTrader: (1)

First off, let me thank and congratulate dmbmaxima88 for the dyno and the respectable gains you got with your intake. Looks like you've got a great product there. Maybe once we're a little closer to spring, I'll have to send you a couple of loonies for one - don't really need all the extra power with the weather we're having in Ontario.

Secondly, how many miles are on your Max? Has anyone put a load of miles on their 2k2 yet? I'm just curious if it's going to react like my 2k LS did, 20,000 km seemed to wake that thing up whereas my 94 Z28 felt just as strong new as it did before I modded it at 25,000 km.

Albert

ps: can the .org start a 'sticky' where dynos can be put into one place?

Dave B

For the last month and half I have gotten tongue lashings from numerous Max owners on this site that SWORE the 2002 Max made more power than the 2002 Altima. It was so painfully obvious that the Altima is making the same power since Nissan rated the Altima with the same peak torque and at the same rpm as the Maxima. With these results, I think it is very clear that Nissan has either underrated the Altima or overrated the Maxima. The ECUs are the same, the power is the same, weight is the same, therefore performance will be the same......just like I've been saying for a while now. Hopefully this will put the Max vs Altima performance debate to rest.


Dave