2k2 SE Dyno results

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01-05-2002 | 09:58 AM

#41

Polished2002

Junior Member

Joined: Jan 2002

Posts: 56

Quote:

Originally posted by Stereodude
Yes, I realize that, but we all know that an intake causes the car to lose some low end torque and give very little extra HP back. Lets wait for DMBmaxima88 to dyno with and without his frankentake, but I'd guess there's less than 5HP gained at the wheels from an intake.

Nissan does a good job tweaking the car from the factory. Very little power can be added to the Maxima without going FI or making the car violate emissions standards. The biggest (power gain) mod for the car is a Y-pipe which is technically illegal (removal of cats). You can gain a few HP here and there, but very little if you keep the car 100% "legal".

I'm itching to see what Hogan (Yo_its_ok) cooks up for his supercharged 2k2.

Stereodude

When you say lose some low end torque are you referring to torque at a particular RPM or are you referring to the maximum torque output decreasing due to the addition of the intake?

This is my first 6 cylinder car - I have a 1991 Nissan Sentra with a Hotshot CAI. The Hotshot CAI was tested on a dyno and showed that maximum horsepower and torque increased over stock. Now I have not analyzed it to see if it lost torque at a particular RPM vs. stock.

Another thing, the dyno of the Maxima showed pretty good torque - doesn't look like he lost bottom end...

I know Greg Vogel did a dyno of an AUTOMATIC 2k2 Altima SE with just a warm air intake setup and found it to gain 8-10WHP and about 10 ft/lbs on torque. He did however dyno it in the wrong gear, but as far as things go - there was an increase...

Thread on Greg's Dyno

I also know that people are saying to do the dyno on the same day at the same time (yada yada yada). There are so many variables that can cause deviation even on the same day - same place. I feel that having enough data from various people can help us come to some kind of consensus. There will be some deviation, but I doubt it will be significant over a wide range of trials. If the cars (Altima & Maxima) are within 1-5HP of each other, then we know thats too close. If Nissan says the Maxima engine has 15HP more - it should be QUITE evident on a dyno. Especially with enough dyno runs to base this on...

Thats my $.02!

01-05-2002 | 10:35 AM

#42

Stereodude

Senior Member

Joined: Sep 2001

Posts: 1,617

From: Detroit Metro Area

Quote:

Originally posted by Polished2002
When you say lose some low end torque are you referring to torque at a particular RPM or are you referring to the maximum torque output decreasing due to the addition of the intake?

Yes, torque at low RPMs.

Quote:

I know Greg Vogel did a dyno of an AUTOMATIC 2k2 Altima SE with just a warm air intake setup and found it to gain 8-10WHP and about 10 ft/lbs on torque. He did however dyno it in the wrong gear, but as far as things go - there was an increase...

Has it occured to you that Nissan intentionally limited the output of the Altima in 02? Maybe they used the compression ratio, exhaust, and intake to shave off 15HP. Maybe that's why he gained HP by adding an intake.

Quote:

I also know that people are saying to do the dyno on the same day at the same time (yada yada yada). There are so many variables that can cause deviation even on the same day - same place. I feel that having enough data from various people can help us come to some kind of consensus. There will be some deviation, but I doubt it will be significant over a wide range of trials. If the cars (Altima & Maxima) are within 1-5HP of each other, then we know thats too close. If Nissan says the Maxima engine has 15HP more - it should be QUITE evident on a dyno. Especially with enough dyno runs to base this on...

Thats my $.02!

It is quite evident on a Dyno. He has a slushbox 02 Max (25% tranny loss) and he got the same dyno results as you with an 02 Altima stick (15% tranny loss). That gives him 263.2HP at the crank (8HP increase from the intake). You have 236.2HP at the crank. So either the manual in the Altima has a 23% tranny loss (which is horrid) or you don't have 255HP at the crank. I suppose you could say that Nissan is lying about the 255HP on the Max and it only has 240HP, which means the intake is adding 23.2HP (I don't think so).

Stereodude

01-05-2002 | 10:37 AM

#43

Stereodude

Senior Member

Joined: Sep 2001

Posts: 1,617

From: Detroit Metro Area

Quote:

Originally posted by kit99bar
you know people have really blasted the Sentra SER Vspec for losing "way too much hp" and it loses 20%
why the heck did SCC have to start that crap?

A manual tranny should not have a 20% power loss. Maybe that's why they started it. That either means the engine doesn't have the power Nissan says it does, or they have a very lossy tranny. Either way it's somewhat disappointing.

Stereodude

01-05-2002 | 11:07 AM

#44

dmbmaxima2k2

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http://forums.maxima.org/showthread.php?threadid=88963

01-05-2002 | 12:28 PM

#45

Y2KevSE

Rice Boy in Denial =)

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Quote:

Originally posted by PhatGuy

I think your torque curve is a lot flatter though and more useable throughout the rpm band??

Yes, it is.

01-05-2002 | 12:40 PM

#46

2K2DEMAX

Pele ain't got nothing on me

iTrader: (1)

Joined: Sep 2000

Posts: 469

From: Tampa, FL

Re: Gotta give props to the Maxima.

Quote:

Originally posted by Polished2002
Good dyno numbers. I've been wanting to see STOCK dyno numbers for the Altima and the Maxima. I know that certain people have been to the track and put down 14.3-14.x times. I don't care about who is faster - I'm not caught up in that. I just want to see how the engines differ in HP and TQ on a dyno! Thats the comparison I'm looking for.

Here are my own stock numbers for my 2002 Altima.
My 2002 SE Altima Dyno Runs

If you got dyno numbers then post them. I'd love to compare and see how much of a DIFFERENCE Nissan really made.

Not coming over here to start no ish. I've been enamored with the Maxima since 1995. I definitely wanted that car, but did not have the money at the time. No disrespect to 5th Generations, but I only started paying attention when the 2002 Maxima due to the more aggressive front fascia.

I still have a 1991 Sentra, and had a 1991 240SX coupe before.

One Love Nissan!

I think for a more accurate hp figure you should have done the dyno in 4th gear, not 3rd gear. The gear ratio of your third gear is 1.258:1 and your 4th is .947:1 which is closer to 1. Anyway, good runs though. I will definitely be wary of racing the 5spd 3.5SE in my 2k 5spd.

01-05-2002 | 02:18 PM

#47

Polished2002

Junior Member

Joined: Jan 2002

Posts: 56

Re: Re: Gotta give props to the Maxima.

Quote:

Originally posted by 2K2DEMAX

I think for a more accurate hp figure you should have done the dyno in 4th gear, not 3rd gear. The gear ratio of your third gear is 1.258:1 and your 4th is .947:1 which is closer to 1. Anyway, good runs though. I will definitely be wary of racing the 5spd 3.5SE in my 2k 5spd.

I might have not stated it on the page, but the first dyno run was in 3rd and the second one was in 4th.

Dyno Run #1 in 3rd
Dyno Run #2 in 4th

Sorry its not stated on the links, but if you look at the bottom of the dyno charts (it is there).

01-05-2002 | 07:55 PM

#48

ehughes

Thread Starter

Senior Member

Joined: Oct 2001

Posts: 351

FYI - My peak TQ was at 4,700 RPM and HP at 5300 RPM. Also, my TQ did not fall below 200 until 5200 RPM and HP stayed above 190 from 4700 to 5700 rpm. Where is that d@mn scanner! It was 57.5 degrees at the intake and typical Houston damp.