Ranmas re-read the thread.

The OP's purpose wasn't for Maximas, he knows extremely well how poor (Personality and Budget) this community is when it comes to purchasing real power mods, he's tried things for us in the past and given up.

His market are VQ35 swapped sentras, those guys pay to play, now by luck, this mod will also work for us, which is why he's posting it over here to get those 2-3 people who are interested in them.

OAN: Saw these and almost made me wanna get a SR20

http://www.ebay.com/itm/Nissan-sr20v...#ht_500wt_1080

Gahhh I can't wait to finish my header project.

 

nope you got exactly what i'm saying ya i think i'm setting the bar too high to move my power band with just headers but it is possible... schmellyfart has one of the sickest 00vi setups on here. check his vids (same youtube name), the tacho needle sweeps up to 7200rpm QUICK! i've decided on obx v2 and there aren't any anywhere so for now i'm just gonna get an equal y made to get proper vq sound. gay *** stillen stopped producing equals and i don't think i can wait long enough for Wiz to start making his designs


non existant lol sorry if i got you excited


wayyy OT but added some decent info and q's

/thread

 

Thats my Maxima!

The Cattman headers made power over the stock headers / unequal WS Y-pipe but only at high RPMs, which is what I was expecting. This was done within a week of each other on the same dyno and the same tank of gas. Not to mention when the Y pipe setup was tested it was much colder and drier air, so the 6 WHP & 1 WTQ was a conservative figure. This was done without tuning I just did a few pulls each time I went, so with tuning and a rasied rev limit the Cattmans work wonders over a Y pipe. So that works out to around a 20 WHP gain over the stock headers and stock y pipe. Combine that with a much better exhaust note and the Cattmans are a couple pounds lighter it was a win win situation for me.

I would say the stock Y pipe is very restrictive and thats where the bulk of the gains come from when upgrading to an aftermarket y pipe. But when upgrading the headers things change. Think of the OEM headers as ultra shorty headers and Cattmans are shorties. The longer the secondaries are the greater scavagening effect you get; so with proper tuning you can get more power. F1 cars have ultra expensive inconel long tube headers and they rev to 18K RPM. Header design is limited by the chassis shape and in case of F1 cars their aero layout. 98% of the difficulty of long tube design is getting a killer set of headers to fit within the car.

As far as having VQ equal length long tubes in a FWD chassis I wouldn't hold my breath. The cost and fabrication that they would need is beyond the average Maxima owners budget. For me the OBX or Cattman headers are a good comprimise of cost and fitment.

 

im fully aware of schmelly's custom headers but is shifting powerband for you the look of the way the RPM needle climbs or an actual dyno graph to analyse??? those headers didnt shift his peak power to 7200rpm's....... maybe im still a lil confused

 

Most likely they probably did, when I did the math, you have to have the primaries around 24" to even have peak power @ 6.5k or something like that.

The Altima ones he's using are like 17"

 

post graphs... even the ones avail now after tuning will help hold peak WHP.... what im saying is that a huge progression on top of that would be to have a significant bump throughout the band, even if the shape of the graph is the same.... but lemme ask, is this even still a consideration????

 

Am I the only who is confused by so many negative comments in here. I think the design sounds awesome. I hear of people all the time whose headers cost $1000+. And they are often surprised that i only had to pay $800 for mine. I only wish now that I didn't already purchase cattmans, it makes it alittle harder to swallow another grand for exhaust.

 

I've been saying that samething for years....We got a bargain!

 

There isn't really graphs mang...... It was math using formulas that sparks found for his intake, the same websites had the info used to calculate for header tubing.

You do understand when we say shifting peak power, we mean shifting over to the LEFT (lower RPMs), the shorter the runners the higher your peak power will be...... So when I said schmelly probably did shift his peak power to 7200 it was from 8k+

It's a simple answer my friend.....

Maxima.org Users.

 

While Ur not 100% incorrect but the guys that pay thousands for their header system doesn't set the bar or standard on what an expensive headers system is... While I'm not complaining about the price if these are made for whatever thousands, I'm not gonna sit here n say 900 is cheap because car ex paid $1000+... People pockets dont allow as big a budget for cars as urs to so just because the next man isn't as financially flexible as you doesn't mean he should never mod his car... Lucky you... But this is a two way street...

 

I wasn't aware the person wanted power shift to the left, seems like they said to 7200rpm.....

And u know me man all this theory and random math algorithm to give a car unproven power is a waste to me, I say **** all that n show me the graphs n proof, till then the car did nothing IMO

 

All I'm saying is that every new product to the maxima community should be embraced, not shunned just because of the price.

 

Agreed.... I didn't really see where anybody was "shunning" the prices as there was no said price yet so Idk why or who went down that road...

 

NICE, found you lol. what else did you have on that car at the time of dyno? 200whp sounds like you must've had 00vi or mevi. did you gain a bit more after tuning with that setup?

ya, obx and cattman and even the old hotshots barely fit in there, true long tubes on a v6 fwd would be retarded hard but not impossible. a performance shop recently opened up 5 mins from home and i went to check it out... this dude made custom long tubes for an sr20det in a pulsar gti-r. they were a work of art, i wasn't gonna take a pic (didn't wanna intrude) but basically... they looked similar to the qr25de design mentioned here except instead of going down with the 4 tubes, these snaked about a foot to the right, then back, then down. think of the obx equal y back n forth bends but with 4 tubes!

nah lol! i was just saying that with his 00vi setup with vias delete, big maf, pftb and portmatched 00vi for the pftb could've also added to more top end rpm power.

the long tube for our engines? prob not. not many shelled out for cattmans, these, if possible, would be easily over $1k.

ya i want power to keep climbing till 7200 but i realized that i'm expecting too much of a shift in power and from just headers. ideally i'd want an engine that produces power like suratt's 5.7 gen maxima, that nice flat area of power so you shift right into almost max hp and holds it (with slight increase) to redline. i'd have to get my car on a dyno and see how the powerband looks like.

i do a lot of reading and research because i'm a student and therefore on a budget so i don't want to spend money and then be disappointed with the results.

i dunno either man. i think for brand new gen 3 cattmans (the ones on sale in the classifieds) $900 is a decent price for headers and a y pipe that were made specifically for our cars with the most research, great build quality and perfect fitment. decent long tubes for the g/350z start at like $1100.

Recently my budget really shrank (books for school and just did CV axles fml) so now i'm much more after the sound. i want some obx v2's (equal y for under 400 w/ headers, why not) but they're no where to be found or an equal y pipe (Wizard got the last one that went on sale lol). now i'm stuck between making equal y or waiting on obx putting this on hold till i pay visa for the CV

 

lol you do realize that for one that you are asking for one mod to produce power to match an engine that has more power and potential, also you do realize that even the current cattman or even OBX headers can and will help your power band to look similar??? look at sparks or Jaypee's graphs... most of that power is in tuning my friend

all on what you think disappoint is... thats why i said just build a system that creates more power, not all these fine specifics because if it doesnt meet those specifics then now its a failure when truely it isnt..


all that pricing crap im not going to get into, because there seems to be this bar set based on other cars on whats expensive and whats not. i personally think cattman headers is expensive and wont buy it because of price, but i will buy his 3" catback without question... people should just stop commenting on other peoples pockets and on whats cheap, decent or expensive... simple

 

There's decades of research before you, we're not treading new waters when it comes to header technology

 

Has anyone heard anything from Travis about these headers? and did SurraTT ever get a set for tests and dynoing?

 

Travis took a job at Hennessy Performance, so he moved to TX.

The chances of these ever happening are low. Im sure it would be hard for him to put time into these when he could make more at his job.


If i had a set and was doing testing, id sure be excited. But thats not the case.

 

I'd like to see sg motorsport longtube headers on a FWD maxima with the headers exiting out the fenders on both sides of the car.

 

They make some SUPER BEAST @$$ CARS

 

Considering the $1000's of dollars he walked away with on B15u without ever supplying anything I'd be shocked if you guys opened up your wallets to him. People were out thousands of dollars for months, some years before he made any attempt at restitution. Some he still owes money or services to.

That said he made it clear he had no intentions of coming back to the nissan crowd or at the very least B15u. This project is DEAD!

 

I was hopeful when I saw his skills but skeptical with the upfront cost it would take. There is a very well respected fabricator here in Georgia that has made custom just about anything you can imagine for high end cars, exotic exhaust and fabrication(look them up on FB), that I am seriously thinking about having them make me some headers for the max. It wont be cheap and they are not close to me though and it would take days and days of downtime to get even a mock-up ready. All that we need to do is get an .org member to drop a car off at a good custom shop who is getting headers made anyways and after that we can all order from that shop. Again, the hard part being finding someone who will pony up and pay the costs. After that, its a win win for the exhaust shop. They can make them to order and it is low-risk.

 

Dang - sorry to hear that - I was really interested after reading his description of what he was going to build so I've been watching this thread for any progress - plus you would have given a test set of long-tubes a real workout.

 

Wow, I had no idea he walked off with peoples money.

 

I forgot to post this lol, good thing surrat is in the know also

Oh btw paging mightymax.......

And they take pplz money, sounds like Travis may have taken his dream job (If what Taz said above is true, I am not backing his statement)

Oddly for the xyz'th year.... I will be over there @ the supra meet dyno day.... Can't wait

 

Then again that is just about every performance or fabrication shop in this business. About the quickest thing they do is take your money and then blow smoke up your a$$ about getting your custom project done on time.

I've learned my lesson over the years from dealings with shops making me custom parts. To the point of looking at used welders and taking welding classes to make my own crap parts for myself in the future.

No I am not bitter, not in the least bit.