Well here's what you have all been waiting for. You've seen the list of mods, and If I'm not mistaken, I believe I am the first to post the results of cattman generation 3 headers with a dyno tune. Mike at DL Motorsports was able to squeeze out an amazing 250.92 FWHP and 240.59 lb/ft torque!!!!!!! :reallyshocked: The car pulls like a **** now. So without further adieu, the much anticipated dyno graph.... BTY the temperature was 84.33F barometric pressure was 29.56 in-Hg and humidity at 15%. Sorry I can't show that on the graph because I don't know how to use the software yet. If you want run files pm me and I'll email them to you.

 

Fantastic #'s. Do shift the curve to the right, and send me the runfiles, and not in that order.

bizzy1999@hotmail.com

Sweet man. I guess I should just stop trying to 'hang' w/ the 6MT's

 

sorry but I have to ask... how do I shift the curve to the right? And bty before anyone asks I don't have AFR but If I remember correctly it's 12.2? I'm using winpep for the first time and I don't know how to use it very well. I can't display the conditions and max numbers at same time. So I will just type them in. 84.33F 29.56 in-Hg 15% Humidity.

 

You'll have to excuse Nmex's humor

 

Do you have #'s before the headers?

 

what are you mods those are some sick #'s

 

ah ok, I know nmex likes to joke around, but I thought he was being serious this time.

My mods are gen 3 cattman headers, cattman catback, underpulley , and a custom short ram intake. (ie I made an aluminum tube and stuck the maf and adaptor and filter on the end of it) tuned with greddy EB (afr and some timing advance)

208/220 was base run, stock with injen intake

 

bty, dandymax installed the EB for me, he mentioned there was some debate in here as to whether or not it was possible to advance the timing with the EB. Mike, who did the tuning said he did add a little timing here and there. Once I figure out how to use the EB software I will try to post those numbers as well.

 

EB= Emanage blue? Dude your numbers are amazing for your mods. You picked up 42whp roughly 20% increase in power. You maxima must fly.

Makes me wanna get rid of my G and get a maxima like yours

 

yes emanage blue. I need wider tires for sure. When I left the shop I was rolling at 20kmh then stomped on it. Tires broke loose so I let up. Got going a bit faster and tried again, still broke loose. Basically I can not put it to the floor in first gear at any point without the tires spinning . Looks like Brian's 3rd gen headers are the best so far!

 

my god...you picked up so much area under the curve. I WANT HEADERS, DAMNIT!!

 

i have the same headers sitting in my living room just waiting to be put on, i hope I hit numbers like this

 

phenolic spacers next...

 

I want an 03 maxima

 

Nice numbers from a TMEC member!

 

DAMN!!! Looks like these headers were well worth the wait. Incredible numbers. Congrats!

Gotta give Brian serious props.

 

I didn't think you could get timing advance from the EB? Only retard.

 

It can't on VQ30's? Maybe it can on the 35

 

Once we had the car strapped to the dyno, I told him about the vias, 1800, 3600 blah blah, then asked him if the timing could be advanced. We did a partial run in 4th gear to make sure everything was working. Then at idle he advanced the timing 5* and the rpm's changed drastically, then he retarded back to "stock" then retarded another 5*. The rpm's changed everytime.

I have the EB software on my laptop but do not know how to use it at this point in time. Is there a way I can use my laptop to check out the settings he used? I don't think he added too much timing, he was aiming for a safe 12.2 AFR so he didn't have to play around too much.

 

12.2 is way rich, too rich for these things.

 

well it will have to stay that way for now. I'll go back in a few months. How much power will I gain if I get closer to 13/14.? I'll call the tuner on Tuesday to confirm that number though (12.2)

 

Every car varies, so only time will tell re: AFR gains.

I'm interested in seeing if he actually advanced the timing using the EB, and if so, by how much.


Do you ave the runfiles yet?

 

i thought I emailed them to you already, but I'll send them again

 

I guess the dyno guy knew something that SR20 doesn't.



Kicka$$ numbers, BTW!

 

Says who?

Depending on VE, you can generally get more hp from timing than you will from a lean afr.

In certain rpm ranges, I can get close to 5 degrees more timing at 12.5 than at 13.5.

 

In my dyno experience I've noticed that my A33B gets very picky whenever there are large fluctuations re: AFR. Also, I've seen, again only in my dynos where my car makes more power whenever it is closest to 14:1. This could be because of the indirect affect of AFR conditioning via MAF V alterations.

I’ve tuned anywhere from 12.5 – 14.0. And 14.0 seems to be the favored area for power production. But again in my case, whenever I go leaner, my timing gets bumped ever so slightly.

So in the end, forget what I said and do what makes most power for your particular set-up.

 

nmex, I resent the files, let me know if you get them

 

does anyone know if I hook my laptop up to the EB with the software installed, whether or not I can look at what has been adjusted? Can I export the data for others to see?

 

Wait, all of this is NA? hmm maximas are kinda fast.

 

Nice waste of a post. IBeng92pwnsmeagain


Back on topic:

I’m a firm believer that NA power is derived from timing. Timing is where it’s at. But, thenA33B software seems to be picky, as I stated earlier, about what it’s seeing w/re: to AFR. I’ve seen/felt in many instances where the power will go flat if there is a large delta in AFR. I’m guessing it may be related to the age old theory re: MAF V and it’s affects on timing. But then again, we have a confusing aspect since the relation of airflow is not 1:1 (linear) to that of MAF voltage.

I was intimidated when I saw the #'s, because I'm a dyno queen/*****, but then I got your runfiles, and was nearly relieved.

Our curve is identical, but for some reason, you shoot out and peak @ 6200. You got me from 6k - 6550. (I caught you @ 6550). I think the 4AT is just too long geared to have power up there, (140mph+). So I'm hitting the dyno again to prove this theory. (go to 5500RPM softly, then HIT it @ 5500 - 7100) and see what kinda #'s I get just @ that RPM.

 

could it be that the third generation of cattman headers are just that little bit better?

 

eng92 is correct in that timing is the key, and if you need to be richer to run higher timing then it's worth it to do so.

Having said that however, it's my opinion based on my experience (and others like Jime) that VQ's (3.0 and 3.5) can get away with running optimal timing at a lean-ish AFR of 13.0 to 13.2 on 94 octane. Richening up to 12.2 or 12.5 doesn't seem to gain anything further. If you are using 91 octane, then maybe you will need to go a bit richer than 13. I can't verify that as I use 93/94 exclusively.

 

Nice #'s. I have more mods than you making a little less power but I have not changed timing at all, only AFR. My EB doesn't have all of the harnesses hooked up but this makes me want to and tune badly. I'm going to have to retune after I install the M62 MAF, I'll see if timing can be fux0red with at all and if I can gain anything. This is enlightening for me that a few more ponies may be available.

 

I just realized then that it's possible he tuned me for 12.2 because of the fact that I only run 91 v-power from shell. He may have gone a little leaner if I was running 94. I didn't realize at the time why he asked me what gas I ran. Personally I prefer the 91 for mileage.

 

That could be. It's also quite likely you could go leaner even with 91, but I wouldn't worry about it much at this point. The difference in power between 12.1 and 12.5 or so is probably quite small (assuming you're just changing AFR and nothing else).

BTW, if you get a free evening/weekend sometime come on up and I'll show you how to use the EB software. Or give me a call whenever and we can run through a few things. You'll need that cable though...

 

I do have the cable now. I may be able to come there one day next week. I'm on Holidays after the wedding but my wife is working 2 days out of 5 during the week. I'll send you an email.

 

How are you advancing timing again? Ahh, yes, how is your ‘tuner’ advancing timing? Also, I thought you were getting the EU, not EB? If so, then the only way to advance timing is through Matts method. Another item, if you’re using a larger MAF, is your tuner using the Q45 settings via EB?

BTW, i tune 13.8 - 14.0 and only use 91, BUT, I'm @ mile high elevation

 

^^Uncorrected numbers plz....

 

why is it so hard to believe that my timing was advanced with the EB? I heard it advance and retard. I haven't gone with the larger maf yet. still using stock. I'll get dandymax to confirm that when he shows me how to use the software. I'm sure EB has been mentioned at least 10 times in this thread. How could you mix that up?

Just to verify. I have the Greddy E-manage blue. The guy who tuned me said he added a little timing. I saw and heard him add timing before we tuned. I don't know how much timing he added or at what RPM. Hopefully we'll know for sure late next week.

Just because someone said it can't be done doesn't make it true.

 

uncorrected 250.85 hp 240.87 tq