I finally got around to tuning the Maxima. I went to Lujan Motorsports today and had them install the 02 sim and the SAFC-II. I spent most of the day there, but I think it was worth it. Here is a pic of the dyno numbers before and after tuning. For those of you that notice the AFR, they did smooth it out after a few more runs.

Mods....http://www.cardomain.com/ride/793048

 

1st to say very impressive gains, so im guessing it was worth it??

do you feel the power? :P

EDIT: You didnt get any runfiles?

 

It is definitely more responsive. I was in a hurry and forgot to get the runfiles.

 

Write down those settings man, there GOLD... even tho the SAFC-II saves them, just incase you know..

 

good work man, nice numbers..

 

Sweet #'s.

Do you have the run files? What were the SAE #'s?

 

Those are good numbers indeed. Could you share a copy of the run files if and when you get em? Lemme know... thanks.

 

He forgot to get em.... post #3.

 

Im interested to see why peak power is at 6500 (impossible at with stock IM) and why the graph is scaled to 500hp.

 

BTW, lujan motorsports WILL NOT give you the runfiles. Jrod1014 had the same issue.

 

They gave us the runfiles for our cars for the December dyno day. We talked Pablo into it. Jose congrats man, those are awesome #s. Now you have to come with us to Moroso

 

Why its scaled at 500HP is useless. I would have asked them to redo the scale for a more accurate view of the graphs. However, Im looking at it and it seems as though peak power is plattau (sp*) from 5500-5900 RPM, then drops off. If you look they stay pretty much the same distance from the 250WHP mark, but by redline its at what I estimate 20WHP LESS than at that peak range

 

Wow those are some pretty good numbers.



However if you notice that at 6100 on your chart, your A/F takes a big fall. This is because you have the common SAFC-II random signal loss issue that I have. Sometimes at that rpm it just goes blind to the engine speed signal and when it does you get a 'zero' fuel adjustment. When it does this you have to completely power down the SAFC and turn it back on.

This is another reason I am trying to get people to avoid this thing. I haven't seen the VAFC-II do this yet. We may be able to solve this issue by using a different pickup.


edit: I just noticed you posted the numbers in 'STD'. Do you have the SAE numbers?

 

scaling makes a difference, when you are trying to see the discrete shape of the curve. you see a plateau because the scale is too small to accurately read.

 

Also, 20whp from A/F tuning? That's not the norm. What is missing from this picture?

 

you are right about the scale making it hard to really see what the graph is saying. My statement was king of schetchy at best. But its followed by "I would have asked them to redo the scale for a more accurate view of the graphs." So I was going in the same direction as you with that

 

Lujan saves all the runfiles on there computer, so maybe you can get them later.

 

I'll pass by the shop this week and try to get the runfiles.

 

Talked with the guy who dynoed the Max and was told to come by today for the runfiles.

 

I'm not sure where you're getting peak power at 6500rpm, it's more like 5800rpm. The scale makes the pics kinda useless really.

 

I got the runfiles today, but I can not post attachments. Therefore, here is a link to a thread on the South Florida Maximas site where I have attached the runfiles. Go to post #16. SAE corrected numbers are 240 HP and 241 Torque. I will post a new graph soon.

http://www.southfloridamaximas.com/f...1686#post11686

 

Why don't you just email them to people to who want them?

bizzy1999@hotmail.com

 

Well, after looking at the runfile. They have the elevation set to 4500ft elevation....in Miami....then they are correcting for the altitude. What does that mean exactly....inflated HP #'s.

 

[ali G]BOOOOOYAKASHA!!![/ali G]

 

Here is an updated graph with the numbers SAE corrected....

 

You have PM.

 

=(... They're meh... I'm going to go back just as a control. I want to know what my car is putting down on their dyno since it's the first one I ever went to... Refer to sig for most recent numbers although it's on a Mustang Dyno, 95deg F.

Congrats on the numbers Jose... Truly impressive! How does it feel?

 

Good numbers


They numbers are what they are, but leaning out the AF does not normally result in gains like that. Anything else done during the tuning besides AF?

Same gear in all pulls right?

Just seems odd, but like I said they are what they are.

 

Car feels great and thanks for the headers and CAI. The Hotshot headers really made a difference.

 

As far as I know, all that was used to tune was the SAFC-II and I believe he did the pulls in the same gear. I will be going to another DynoJet facility to see if I can duplicate the numbers.